{"content_id":"vgume8jeuv","slug":"korea-won-dollar-24-hour-fx-trading-2026","locale":"en","schema_type":"Report","category":"report","category_name":"Report","title":"Implementation of 24-Hour Won-Dollar Trading: The Implications and Risks of Expanding Trading Hours in the Seoul Foreign Exchange Market","summary":"Starting July 6, 2026, spot won-dollar trading on the Seoul foreign exchange market will be expanded to a 24-hour system, excluding weekends and January 1. While this measure is intended to improve market access for foreign investors and lay the groundwork for inclusion in the MSCI Developed Markets Index, nighttime liquidity, price distortions, and market surveillance systems remain key challenges.","key_points":["\"24-hour trading\" does not refer to all won-denominated transactions, but rather to the extension of trading hours for won-dollar transactions conducted through brokerage firms; trading hours for the won against other currencies—such as the euro, yen, and pound—will remain unchanged.","Operating hours are from 6:00 a.m. on Monday to 6:00 a.m. on Saturday, based on New York Daylight Time; trading is available even on domestic public holidays, except on weekends and January 1.","From MSCI’s perspective, the key issues are not simply trading hours, but the won’s international settlement capabilities, onshore and offshore liquidity, and the actual convenience for foreign investors in managing their investments.","According to an analysis by the Korea Capital Market Institute, no significant increase in exchange rate volatility was observed following the extension of trading hours until 2:00 a.m. in 2024, and gap volatility was found to have decreased.","For the 24-hour system to operate stably, order book depth during nighttime hours, electronic trading infrastructure, monitoring of suspicious transactions, and settlement and risk management must all be strengthened."],"content_markdown":"Won-dollar trading on the Seoul foreign exchange market will expand to a 24-hour system starting July 6, 2026. The key point is not simply the statement that “the won can be bought and sold freely at any time,” but rather a systemic change aimed at aligning the Korean foreign exchange market with more global trading hours, accessibility, and settlement structures.\n\nThis change will reduce time constraints on currency exchange and hedging for foreign investors, import-export companies, and investors in overseas assets. At the same time, insufficient liquidity during nighttime hours can cause significant exchange rate fluctuations or temporary price distortions even for small orders. Therefore, the 24-hour trading system represents not only an expansion of convenience but also a shift in market management practices.\n\n## Key Summary\n\n| Item | Content |\n|---|---|\n| Effective Date | July 6, 2026 |\n| Eligible Transactions | Won-dollar spot foreign exchange transactions through brokerage firms |\n| Current Trading Hours | Weekdays from 9:00 a.m. to 2:00 a.m. the following day |\n| Revised Trading Hours | Monday 6:00 a.m. to Saturday 6:00 a.m. (New York Daylight Saving Time) |\n| Market Closures | Weekends, January 1 |\n| Domestic Public Holidays | KRW/USD trading is available. However, settlements are processed based on bank business days |\n| Cross-Currency Trading | Trading hours for currencies other than the U.S. dollar (e.g., KRW/EUR, KRW/JPY) will remain unchanged at 9:00 a.m. to 3:30 p.m. |\n| Policy Objectives | Reduce gaps in foreign exchange trading, improve accessibility for domestic and international investors, and strengthen the foundation for inclusion in the MSCI Developed Markets Index |\n| Key Risks | Lack of overnight liquidity, temporary price distortions, burden of monitoring abnormal trading, and settlement and operational risks |\n\n## What Will Change?\n\n### 1. The trading gap for the won-dollar pair will effectively disappear\n\nThe Seoul foreign exchange market previously opened at 9:00 a.m. and closed at 2:00 a.m. the following day. Starting July 6, 2026, it will operate continuously from 6:00 a.m. on Monday to 6:00 a.m. on Saturday, based on New York Daylight Saving Time. When New York Daylight Saving Time is not in effect, trading hours will be from 7:00 a.m. on Monday to 7:00 a.m. on Saturday.\n\nHowever, the term “24-hour won trading” requires a clear distinction regarding its scope. This reorganization directly applies to won-dollar trading conducted through brokerage firms. Trading between the won and non-dollar currencies—such as the euro, yen, and pound—will maintain their existing trading hours.\n\n### 2. Won-dollar trading is available even on domestic public holidays\n\nWith the exception of weekends and January 1, won-dollar trading is available even on domestic public holidays. For example, if U.S. financial markets are operating normally on a Korean public holiday and there are significant movements in global dollar flows, market participants can respond by trading won-dollar pairs within the Seoul foreign exchange market.\n\nHowever, trading and settlement are different. Even if a trade is executed on a public holiday, the actual settlement of funds is processed based on bank business days. Corporations and financial institutions must consider not only trading hours but also settlement dates, internal limits, collateral, and accounting standards.\n\n### 3. The reference exchange rate system may change gradually\n\nThe existing weekly closing price and trading reference rate will remain in place for the time being. Currently, the trading reference rate is calculated based on the exchange rates and trading volumes during specific time periods; however, under a 24-hour trading system, determining which point in the day to use as the basis for setting the representative exchange rate becomes more important.\n\nForeign exchange authorities and the market have been exploring the need for new calculation methods, such as the time-weighted average price (TWAP). However, since the reference exchange rate is directly linked to corporate accounting, taxation, trade settlements, and the valuation of financial products, a grace period is necessary to minimize market confusion.\n\n## Why Introduce 24-Hour Trading?\n\n### To Lower the “Time Barrier” for Foreign Investors\n\nForeign investors in Korean stocks or bonds must buy or sell the Korean won. However, if won-dollar trading is only possible during specific hours, it is difficult to respond immediately to market events occurring during U.S. or European business hours.\n\n24-hour trading alleviates this problem. Overseas investors can handle currency exchanges related to investments in Korean assets during their home country’s business hours, and domestic financial institutions and companies can also reflect overnight global events without having to wait until the next morning.\n\n### It Is Linked to Inclusion in the MSCI Developed Markets Index\n\nSouth Korea has long sought inclusion in the MSCI Developed Markets Index. While the Korean stock market is large in terms of size and liquidity, issues such as won currency exchange and settlement, foreign investor account management, English-language disclosures, short selling, and settlement infrastructure—all factors evaluated by MSCI in terms of market accessibility—have repeatedly been points of contention.\n\nThe roadmap announced by the government in January 2026 outlined a series of tasks, including modernizing the foreign exchange market, establishing securities trading and settlement systems that meet global standards, improving the convenience of investor registration and account opening, rationalizing short-selling regulations, and enhancing English-language disclosure. Among these, the opening of a 24-hour foreign exchange market is a key initiative aimed at improving access to the foreign exchange market.\n\n### However, 24-hour trading alone will not resolve the MSCI issue\n\nThe market openness required by MSCI does not simply mean “keeping the Seoul market open longer.” The key factors that global investors consider are as follows:\n\n- Is it sufficiently possible to settle in won even from overseas?\n- Does won-dollar trading provide sufficient liquidity and tight bid-ask spreads even at night?\n- Can foreign investors predictably conduct currency exchange, settlement, account management, and hedging?\n- Are these systems not only in place but also functioning stably as actual market practices?\n\nIn the June 2026 MSCI review, South Korea was not included in the list of developed markets under observation and retained its emerging market status. The main reasons cited were the lack of offshore settlement capabilities for the won, insufficient liquidity during extended trading hours, and practical constraints on foreign exchange operations. Therefore, while 24-hour trading represents significant progress, it is less a sufficient condition for MSCI inclusion and more of a starting point for validating market accessibility.\n\n## Impact by Market Participant\n\n### Foreign Investors\n\nForeign investors can now exchange won for dollars even at night or in the early morning (Korean time), allowing them to more flexibly coordinate trading in Korean stocks and bonds with currency hedging. In particular, they have a shorter response time when Korea-related news breaks during U.S. or European trading hours, or when global interest rates or dollar trends shift.\n\nHowever, the actual level of convenience depends on trading counterparties, brokerage systems, won settlement structures, internal compliance, and overnight liquidity. Even with extended trading hours, market impact from large orders can remain significant if the order book is thin.\n\n### Import and Export Companies\n\nExporters can choose from a wider range of times to convert their dollar revenue into won, while importers have increased opportunities to hedge against dollar settlement costs. For example, when the dollar fluctuates sharply immediately after the release of U.S. economic indicators, companies previously had to wait until the next trading day, but under a 24-hour system, they can respond within the market.\n\nHowever, not all companies will immediately benefit from 24-hour trading. Key factors include how a company’s primary bank provides overnight foreign exchange, forward contracts, and hedging services; whether internal approval procedures allow for overnight trading; and how the company applies its accounting reference exchange rate.\n\n### Individual Overseas Investors\n\nIndividual investors can expect the time lag between trading foreign stocks and exchanging currency to shrink. However, this does not mean that consumer-oriented foreign exchange services offered by banks and securities firms will expand at the same pace as the 24-hour opening of the Seoul foreign exchange market. Investors must verify each financial institution’s systems, terms and conditions, spreads, maintenance windows, and scope of service.\n\n### Foreign Exchange Authorities and Financial Institutions\n\nFor foreign exchange authorities, the timeframe for market surveillance and stabilization will lengthen. Financial institutions must strengthen their night desks, electronic foreign exchange trading (eFX), limit management, abnormal transaction detection, incident response, and settlement risk management systems.\n\nWhile 24-hour trading allows market prices to form more continuously, it also means that abnormal orders or concentration of trading activity during specific time periods can be reflected in exchange rates more quickly. Therefore, extending trading hours requires a corresponding expansion of both technological infrastructure and risk management.\n\n## Will Exchange Rate Volatility Increase?\n\n### Reducing Trading Gaps Can Lower Gap Risk\n\nIf major news breaks overseas while the foreign exchange market is closed, that information is reflected all at once in the next opening price. This can be viewed as “gap volatility.” If trading hours are extended, information will not be concentrated at a single point in time but can be reflected in prices over a period of time.\n\nThe Korea Capital Market Institute analyzed the effects of extending trading hours from a 3:30 p.m. close to a 2:00 a.m. close the following day in July 2024. The results showed that no significant increase in volatility was observed following the extension of trading hours, and nighttime gap volatility was found to have decreased significantly. Furthermore, the analysis indicated that tail risk did not worsen.\n\n### However, price distortions can occur if nighttime liquidity is thin\n\nLonger trading hours do not necessarily mean that market depth is the same across all time zones. During nighttime hours, real demand from imports and exports, as well as quotes from domestic institutions and brokers, may be lower than during daytime hours. In such cases, even small orders could cause significant fluctuations in the exchange rate, or the market might overreact to global news.\n\nTherefore, the key to a 24-hour trading system lies not simply in keeping the market open, but in meeting the following conditions:\n\n- Are there sufficient buy and sell quotes available even at night?\n- Is there sufficient market depth to handle large orders in batches?\n- Can electronic trading system failures and abnormal transactions be monitored in real time?\n- Does the direct participation of foreign financial institutions lead to an actual increase in trading volume?\n- Are the response guidelines for authorities and financial institutions clear in the event of market stress?\n\n## Relationship with the Internationalization of the Won\n\nThe internationalization of the won refers to the won evolving in a direction that makes it easier for foreign investors and companies to trade, hold, and settle transactions in the won. 24-hour won-dollar trading is one step in this process. However, true internationalization requires broader conditions.\n\n| Category | 24-Hour Trading | Internationalization of the Won |\n|---|---|---|\n| Key Question | When can the won-dollar pair be traded? | Where, for what purposes, and how freely can the won be used? |\n| Major Effects | Reduced trading gaps, improved currency exchange convenience | Expansion of overseas settlements, holdings, financing, and hedging |\n| Required Infrastructure | Brokerage systems, overnight quotes, eFX | Offshore payment networks, regulatory reforms, participation by global financial institutions |\n| Relationship with MSCI | One factor in improving accessibility | Broader criteria for evaluating access to advanced markets |\n\nIn other words, keeping the Seoul market open 24 hours a day constitutes an “extension of onshore trading hours.” What MSCI and global investors prioritize more highly is whether won-denominated settlements and hedging are sufficiently possible even in offshore markets, and whether liquidity during the extended trading hours is actually deep.\n\n## Differences from the 2008-Style Market Management\n\nIn the past, the Korean foreign exchange market was subject to relatively strong regulatory influence. The shorter the trading hours and the more participants were centered on domestic financial institutions, the easier it was for authorities to concentrate market stabilization measures during specific time periods.\n\nHowever, as trading hours lengthen and participation by overseas financial institutions increases, the market becomes broader and more decentralized. While this can improve price discovery, it may make it more difficult for authorities to track position flows across all time zones and among all participants as closely as they do during daytime hours.\n\nTherefore, future market stabilization is likely to rely more on data-driven monitoring, transparent communication, market-making functions, liquidity provision channels, and electronic trading risk management than on simple direct intervention.\n\n## Key Practical Points to Check\n\n### What Companies Should Check\n\n- Whether their primary bank offers overnight won-dollar spot and forward exchange services\n- Whether the spreads and limits applied to overnight trading differ from those during daytime hours\n- How settlement dates for transactions on public holidays are postponed\n- What time point is used for accounting purposes and the internal reference exchange rate\n- Whether approval authority and risk limits for overnight trading are in place\n\n### What Individual Investors Should Check\n\n- Whether the available hours for currency exchange at their bank or brokerage firm are actually extended\n- Are the spreads and preferential rates for overnight currency exchange the same as during the day?\n- How are the settlement times for overseas stock trading and currency exchange linked?\n- What are the maintenance windows, order acceptance times, and cancellation policies for currency exchange?\n\n### Indicators from a Policy Perspective\n\n- Trading volume and bid-ask spreads during overnight hours\n- Actual trading participation by overseas financial institutions (e.g., RFI)\n- Discrepancy between daytime closing prices and nighttime prices\n- Occurrence of abnormal trading during public holidays and early morning hours\n- Extent of price reversals following sharp fluctuations in exchange rates during major global events\n- Improvements in foreign exchange-related items in the MSCI Market Accessibility Assessment\n\n## Conclusion\n\n24-hour won-dollar trading represents a significant shift toward a more global operating system for the Korean foreign exchange market. Domestic and international investors and corporations will benefit from reduced trading gaps, and the Korean capital market will gain a testing ground to demonstrate improved market accessibility in discussions regarding inclusion in the MSCI Developed Markets Index.\n\nHowever, 24-hour trading is not an end in itself but rather the beginning of a validation process. The system’s effectiveness will be maximized only if sufficient liquidity is maintained overnight and if settlement, surveillance, and risk management operate stably even on public holidays and during early morning hours. The key going forward is not “how long the market stays open,” but rather “how deep and reliable the market operates during the hours it is open.”","content_html":"\u003cp\u003eWon-dollar trading on the Seoul foreign exchange market will expand to a 24-hour system starting July 6, 2026. The key point is not simply the statement that “the won can be bought and sold freely at any time,” but rather a systemic change aimed at aligning the Korean foreign exchange market with more global trading hours, accessibility, and settlement structures.\u003c/p\u003e\n\u003cp\u003eThis change will reduce time constraints on currency exchange and hedging for foreign investors, import-export companies, and investors in overseas assets. At the same time, insufficient liquidity during nighttime hours can cause significant exchange rate fluctuations or temporary price distortions even for small orders. Therefore, the 24-hour trading system represents not only an expansion of convenience but also a shift in market management practices.\u003c/p\u003e\n\u003ch2\u003e\u003ca href=\"#key-summary\" class=\"anchor\" id=\"key-summary\"\u003e\u003c/a\u003eKey Summary\u003c/h2\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c/th\u003e\n\u003cth\u003eContent\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEffective Date\u003c/td\u003e\n\u003ctd\u003eJuly 6, 2026\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEligible Transactions\u003c/td\u003e\n\u003ctd\u003eWon-dollar spot foreign exchange transactions through brokerage firms\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Trading Hours\u003c/td\u003e\n\u003ctd\u003eWeekdays from 9:00 a.m. to 2:00 a.m. the following day\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRevised Trading Hours\u003c/td\u003e\n\u003ctd\u003eMonday 6:00 a.m. to Saturday 6:00 a.m. (New York Daylight Saving Time)\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMarket Closures\u003c/td\u003e\n\u003ctd\u003eWeekends, January 1\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDomestic Public Holidays\u003c/td\u003e\n\u003ctd\u003eKRW/USD trading is available. However, settlements are processed based on bank business days\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCross-Currency Trading\u003c/td\u003e\n\u003ctd\u003eTrading hours for currencies other than the U.S. dollar (e.g., KRW/EUR, KRW/JPY) will remain unchanged at 9:00 a.m. to 3:30 p.m.\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolicy Objectives\u003c/td\u003e\n\u003ctd\u003eReduce gaps in foreign exchange trading, improve accessibility for domestic and international investors, and strengthen the foundation for inclusion in the MSCI Developed Markets Index\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Risks\u003c/td\u003e\n\u003ctd\u003eLack of overnight liquidity, temporary price distortions, burden of monitoring abnormal trading, and settlement and operational risks\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003ch2\u003e\u003ca href=\"#what-will-change\" class=\"anchor\" id=\"what-will-change\"\u003e\u003c/a\u003eWhat Will Change?\u003c/h2\u003e\n\u003ch3\u003e\u003ca href=\"#1-the-trading-gap-for-the-won-dollar-pair-will-effectively-disappear\" class=\"anchor\" id=\"1-the-trading-gap-for-the-won-dollar-pair-will-effectively-disappear\"\u003e\u003c/a\u003e1. The trading gap for the won-dollar pair will effectively disappear\u003c/h3\u003e\n\u003cp\u003eThe Seoul foreign exchange market previously opened at 9:00 a.m. and closed at 2:00 a.m. the following day. Starting July 6, 2026, it will operate continuously from 6:00 a.m. on Monday to 6:00 a.m. on Saturday, based on New York Daylight Saving Time. When New York Daylight Saving Time is not in effect, trading hours will be from 7:00 a.m. on Monday to 7:00 a.m. on Saturday.\u003c/p\u003e\n\u003cp\u003eHowever, the term “24-hour won trading” requires a clear distinction regarding its scope. This reorganization directly applies to won-dollar trading conducted through brokerage firms. Trading between the won and non-dollar currencies—such as the euro, yen, and pound—will maintain their existing trading hours.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#2-won-dollar-trading-is-available-even-on-domestic-public-holidays\" class=\"anchor\" id=\"2-won-dollar-trading-is-available-even-on-domestic-public-holidays\"\u003e\u003c/a\u003e2. Won-dollar trading is available even on domestic public holidays\u003c/h3\u003e\n\u003cp\u003eWith the exception of weekends and January 1, won-dollar trading is available even on domestic public holidays. For example, if U.S. financial markets are operating normally on a Korean public holiday and there are significant movements in global dollar flows, market participants can respond by trading won-dollar pairs within the Seoul foreign exchange market.\u003c/p\u003e\n\u003cp\u003eHowever, trading and settlement are different. Even if a trade is executed on a public holiday, the actual settlement of funds is processed based on bank business days. Corporations and financial institutions must consider not only trading hours but also settlement dates, internal limits, collateral, and accounting standards.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#3-the-reference-exchange-rate-system-may-change-gradually\" class=\"anchor\" id=\"3-the-reference-exchange-rate-system-may-change-gradually\"\u003e\u003c/a\u003e3. The reference exchange rate system may change gradually\u003c/h3\u003e\n\u003cp\u003eThe existing weekly closing price and trading reference rate will remain in place for the time being. Currently, the trading reference rate is calculated based on the exchange rates and trading volumes during specific time periods; however, under a 24-hour trading system, determining which point in the day to use as the basis for setting the representative exchange rate becomes more important.\u003c/p\u003e\n\u003cp\u003eForeign exchange authorities and the market have been exploring the need for new calculation methods, such as the time-weighted average price (TWAP). However, since the reference exchange rate is directly linked to corporate accounting, taxation, trade settlements, and the valuation of financial products, a grace period is necessary to minimize market confusion.\u003c/p\u003e\n\u003ch2\u003e\u003ca href=\"#why-introduce-24-hour-trading\" class=\"anchor\" id=\"why-introduce-24-hour-trading\"\u003e\u003c/a\u003eWhy Introduce 24-Hour Trading?\u003c/h2\u003e\n\u003ch3\u003e\u003ca href=\"#to-lower-the-time-barrier-for-foreign-investors\" class=\"anchor\" id=\"to-lower-the-time-barrier-for-foreign-investors\"\u003e\u003c/a\u003eTo Lower the “Time Barrier” for Foreign Investors\u003c/h3\u003e\n\u003cp\u003eForeign investors in Korean stocks or bonds must buy or sell the Korean won. However, if won-dollar trading is only possible during specific hours, it is difficult to respond immediately to market events occurring during U.S. or European business hours.\u003c/p\u003e\n\u003cp\u003e24-hour trading alleviates this problem. Overseas investors can handle currency exchanges related to investments in Korean assets during their home country’s business hours, and domestic financial institutions and companies can also reflect overnight global events without having to wait until the next morning.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#it-is-linked-to-inclusion-in-the-msci-developed-markets-index\" class=\"anchor\" id=\"it-is-linked-to-inclusion-in-the-msci-developed-markets-index\"\u003e\u003c/a\u003eIt Is Linked to Inclusion in the MSCI Developed Markets Index\u003c/h3\u003e\n\u003cp\u003eSouth Korea has long sought inclusion in the MSCI Developed Markets Index. While the Korean stock market is large in terms of size and liquidity, issues such as won currency exchange and settlement, foreign investor account management, English-language disclosures, short selling, and settlement infrastructure—all factors evaluated by MSCI in terms of market accessibility—have repeatedly been points of contention.\u003c/p\u003e\n\u003cp\u003eThe roadmap announced by the government in January 2026 outlined a series of tasks, including modernizing the foreign exchange market, establishing securities trading and settlement systems that meet global standards, improving the convenience of investor registration and account opening, rationalizing short-selling regulations, and enhancing English-language disclosure. Among these, the opening of a 24-hour foreign exchange market is a key initiative aimed at improving access to the foreign exchange market.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#however-24-hour-trading-alone-will-not-resolve-the-msci-issue\" class=\"anchor\" id=\"however-24-hour-trading-alone-will-not-resolve-the-msci-issue\"\u003e\u003c/a\u003eHowever, 24-hour trading alone will not resolve the MSCI issue\u003c/h3\u003e\n\u003cp\u003eThe market openness required by MSCI does not simply mean “keeping the Seoul market open longer.” The key factors that global investors consider are as follows:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eIs it sufficiently possible to settle in won even from overseas?\u003c/li\u003e\n\u003cli\u003eDoes won-dollar trading provide sufficient liquidity and tight bid-ask spreads even at night?\u003c/li\u003e\n\u003cli\u003eCan foreign investors predictably conduct currency exchange, settlement, account management, and hedging?\u003c/li\u003e\n\u003cli\u003eAre these systems not only in place but also functioning stably as actual market practices?\u003c/li\u003e\n\u003c/ul\u003e\n\u003cp\u003eIn the June 2026 MSCI review, South Korea was not included in the list of developed markets under observation and retained its emerging market status. The main reasons cited were the lack of offshore settlement capabilities for the won, insufficient liquidity during extended trading hours, and practical constraints on foreign exchange operations. Therefore, while 24-hour trading represents significant progress, it is less a sufficient condition for MSCI inclusion and more of a starting point for validating market accessibility.\u003c/p\u003e\n\u003ch2\u003e\u003ca href=\"#impact-by-market-participant\" class=\"anchor\" id=\"impact-by-market-participant\"\u003e\u003c/a\u003eImpact by Market Participant\u003c/h2\u003e\n\u003ch3\u003e\u003ca href=\"#foreign-investors\" class=\"anchor\" id=\"foreign-investors\"\u003e\u003c/a\u003eForeign Investors\u003c/h3\u003e\n\u003cp\u003eForeign investors can now exchange won for dollars even at night or in the early morning (Korean time), allowing them to more flexibly coordinate trading in Korean stocks and bonds with currency hedging. In particular, they have a shorter response time when Korea-related news breaks during U.S. or European trading hours, or when global interest rates or dollar trends shift.\u003c/p\u003e\n\u003cp\u003eHowever, the actual level of convenience depends on trading counterparties, brokerage systems, won settlement structures, internal compliance, and overnight liquidity. Even with extended trading hours, market impact from large orders can remain significant if the order book is thin.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#import-and-export-companies\" class=\"anchor\" id=\"import-and-export-companies\"\u003e\u003c/a\u003eImport and Export Companies\u003c/h3\u003e\n\u003cp\u003eExporters can choose from a wider range of times to convert their dollar revenue into won, while importers have increased opportunities to hedge against dollar settlement costs. For example, when the dollar fluctuates sharply immediately after the release of U.S. economic indicators, companies previously had to wait until the next trading day, but under a 24-hour system, they can respond within the market.\u003c/p\u003e\n\u003cp\u003eHowever, not all companies will immediately benefit from 24-hour trading. Key factors include how a company’s primary bank provides overnight foreign exchange, forward contracts, and hedging services; whether internal approval procedures allow for overnight trading; and how the company applies its accounting reference exchange rate.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#individual-overseas-investors\" class=\"anchor\" id=\"individual-overseas-investors\"\u003e\u003c/a\u003eIndividual Overseas Investors\u003c/h3\u003e\n\u003cp\u003eIndividual investors can expect the time lag between trading foreign stocks and exchanging currency to shrink. However, this does not mean that consumer-oriented foreign exchange services offered by banks and securities firms will expand at the same pace as the 24-hour opening of the Seoul foreign exchange market. Investors must verify each financial institution’s systems, terms and conditions, spreads, maintenance windows, and scope of service.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#foreign-exchange-authorities-and-financial-institutions\" class=\"anchor\" id=\"foreign-exchange-authorities-and-financial-institutions\"\u003e\u003c/a\u003eForeign Exchange Authorities and Financial Institutions\u003c/h3\u003e\n\u003cp\u003eFor foreign exchange authorities, the timeframe for market surveillance and stabilization will lengthen. Financial institutions must strengthen their night desks, electronic foreign exchange trading (eFX), limit management, abnormal transaction detection, incident response, and settlement risk management systems.\u003c/p\u003e\n\u003cp\u003eWhile 24-hour trading allows market prices to form more continuously, it also means that abnormal orders or concentration of trading activity during specific time periods can be reflected in exchange rates more quickly. Therefore, extending trading hours requires a corresponding expansion of both technological infrastructure and risk management.\u003c/p\u003e\n\u003ch2\u003e\u003ca href=\"#will-exchange-rate-volatility-increase\" class=\"anchor\" id=\"will-exchange-rate-volatility-increase\"\u003e\u003c/a\u003eWill Exchange Rate Volatility Increase?\u003c/h2\u003e\n\u003ch3\u003e\u003ca href=\"#reducing-trading-gaps-can-lower-gap-risk\" class=\"anchor\" id=\"reducing-trading-gaps-can-lower-gap-risk\"\u003e\u003c/a\u003eReducing Trading Gaps Can Lower Gap Risk\u003c/h3\u003e\n\u003cp\u003eIf major news breaks overseas while the foreign exchange market is closed, that information is reflected all at once in the next opening price. This can be viewed as “gap volatility.” If trading hours are extended, information will not be concentrated at a single point in time but can be reflected in prices over a period of time.\u003c/p\u003e\n\u003cp\u003eThe Korea Capital Market Institute analyzed the effects of extending trading hours from a 3:30 p.m. close to a 2:00 a.m. close the following day in July 2024. The results showed that no significant increase in volatility was observed following the extension of trading hours, and nighttime gap volatility was found to have decreased significantly. Furthermore, the analysis indicated that tail risk did not worsen.\u003c/p\u003e\n\u003ch3\u003e\u003ca href=\"#however-price-distortions-can-occur-if-nighttime-liquidity-is-thin\" class=\"anchor\" id=\"however-price-distortions-can-occur-if-nighttime-liquidity-is-thin\"\u003e\u003c/a\u003eHowever, price distortions can occur if nighttime liquidity is thin\u003c/h3\u003e\n\u003cp\u003eLonger trading hours do not necessarily mean that market depth is the same across all time zones. During nighttime hours, real demand from imports and exports, as well as quotes from domestic institutions and brokers, may be lower than during daytime hours. In such cases, even small orders could cause significant fluctuations in the exchange rate, or the market might overreact to global news.\u003c/p\u003e\n\u003cp\u003eTherefore, the key to a 24-hour trading system lies not simply in keeping the market open, but in meeting the following conditions:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eAre there sufficient buy and sell quotes available even at night?\u003c/li\u003e\n\u003cli\u003eIs there sufficient market depth to handle large orders in batches?\u003c/li\u003e\n\u003cli\u003eCan electronic trading system failures and abnormal transactions be monitored in real time?\u003c/li\u003e\n\u003cli\u003eDoes the direct participation of foreign financial institutions lead to an actual increase in trading volume?\u003c/li\u003e\n\u003cli\u003eAre the response guidelines for authorities and financial institutions clear in the event of market stress?\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch2\u003e\u003ca href=\"#relationship-with-the-internationalization-of-the-won\" class=\"anchor\" id=\"relationship-with-the-internationalization-of-the-won\"\u003e\u003c/a\u003eRelationship with the Internationalization of the Won\u003c/h2\u003e\n\u003cp\u003eThe internationalization of the won refers to the won evolving in a direction that makes it easier for foreign investors and companies to trade, hold, and settle transactions in the won. 24-hour won-dollar trading is one step in this process. However, true internationalization requires broader conditions.\u003c/p\u003e\n\u003cdiv class=\"overflow-x-auto\"\u003e\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c/th\u003e\n\u003cth\u003e24-Hour Trading\u003c/th\u003e\n\u003cth\u003eInternationalization of the Won\u003c/th\u003e\n\u003c/tr\u003e\n\u003c/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Question\u003c/td\u003e\n\u003ctd\u003eWhen can the won-dollar pair be traded?\u003c/td\u003e\n\u003ctd\u003eWhere, for what purposes, and how freely can the won be used?\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMajor Effects\u003c/td\u003e\n\u003ctd\u003eReduced trading gaps, improved currency exchange convenience\u003c/td\u003e\n\u003ctd\u003eExpansion of overseas settlements, holdings, financing, and hedging\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Infrastructure\u003c/td\u003e\n\u003ctd\u003eBrokerage systems, overnight quotes, eFX\u003c/td\u003e\n\u003ctd\u003eOffshore payment networks, regulatory reforms, participation by global financial institutions\u003c/td\u003e\n\u003c/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelationship with MSCI\u003c/td\u003e\n\u003ctd\u003eOne factor in improving accessibility\u003c/td\u003e\n\u003ctd\u003eBroader criteria for evaluating access to advanced markets\u003c/td\u003e\n\u003c/tr\u003e\n\u003c/tbody\u003e\n\u003c/table\u003e\u003c/div\u003e\n\u003cp\u003eIn other words, keeping the Seoul market open 24 hours a day constitutes an “extension of onshore trading hours.” What MSCI and global investors prioritize more highly is whether won-denominated settlements and hedging are sufficiently possible even in offshore markets, and whether liquidity during the extended trading hours is actually deep.\u003c/p\u003e\n\u003ch2\u003e\u003ca href=\"#differences-from-the-2008-style-market-management\" class=\"anchor\" id=\"differences-from-the-2008-style-market-management\"\u003e\u003c/a\u003eDifferences from the 2008-Style Market Management\u003c/h2\u003e\n\u003cp\u003eIn the past, the Korean foreign exchange market was subject to relatively strong regulatory influence. The shorter the trading hours and the more participants were centered on domestic financial institutions, the easier it was for authorities to concentrate market stabilization measures during specific time periods.\u003c/p\u003e\n\u003cp\u003eHowever, as trading hours lengthen and participation by overseas financial institutions increases, the market becomes broader and more decentralized. While this can improve price discovery, it may make it more difficult for authorities to track position flows across all time zones and among all participants as closely as they do during daytime hours.\u003c/p\u003e\n\u003cp\u003eTherefore, future market stabilization is likely to rely more on data-driven monitoring, transparent communication, market-making functions, liquidity provision channels, and electronic trading risk management than on simple direct intervention.\u003c/p\u003e\n\u003ch2\u003e\u003ca href=\"#key-practical-points-to-check\" class=\"anchor\" id=\"key-practical-points-to-check\"\u003e\u003c/a\u003eKey Practical Points to Check\u003c/h2\u003e\n\u003ch3\u003e\u003ca href=\"#what-companies-should-check\" class=\"anchor\" id=\"what-companies-should-check\"\u003e\u003c/a\u003eWhat Companies Should Check\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhether their primary bank offers overnight won-dollar spot and forward exchange services\u003c/li\u003e\n\u003cli\u003eWhether the spreads and limits applied to overnight trading differ from those during daytime hours\u003c/li\u003e\n\u003cli\u003eHow settlement dates for transactions on public holidays are postponed\u003c/li\u003e\n\u003cli\u003eWhat time point is used for accounting purposes and the internal reference exchange rate\u003c/li\u003e\n\u003cli\u003eWhether approval authority and risk limits for overnight trading are in place\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003e\u003ca href=\"#what-individual-investors-should-check\" class=\"anchor\" id=\"what-individual-investors-should-check\"\u003e\u003c/a\u003eWhat Individual Investors Should Check\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhether the available hours for currency exchange at their bank or brokerage firm are actually extended\u003c/li\u003e\n\u003cli\u003eAre the spreads and preferential rates for overnight currency exchange the same as during the day?\u003c/li\u003e\n\u003cli\u003eHow are the settlement times for overseas stock trading and currency exchange linked?\u003c/li\u003e\n\u003cli\u003eWhat are the maintenance windows, order acceptance times, and cancellation policies for currency exchange?\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch3\u003e\u003ca href=\"#indicators-from-a-policy-perspective\" class=\"anchor\" id=\"indicators-from-a-policy-perspective\"\u003e\u003c/a\u003eIndicators from a Policy Perspective\u003c/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTrading volume and bid-ask spreads during overnight hours\u003c/li\u003e\n\u003cli\u003eActual trading participation by overseas financial institutions (e.g., RFI)\u003c/li\u003e\n\u003cli\u003eDiscrepancy between daytime closing prices and nighttime prices\u003c/li\u003e\n\u003cli\u003eOccurrence of abnormal trading during public holidays and early morning hours\u003c/li\u003e\n\u003cli\u003eExtent of price reversals following sharp fluctuations in exchange rates during major global events\u003c/li\u003e\n\u003cli\u003eImprovements in foreign exchange-related items in the MSCI Market Accessibility Assessment\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch2\u003e\u003ca href=\"#conclusion\" class=\"anchor\" id=\"conclusion\"\u003e\u003c/a\u003eConclusion\u003c/h2\u003e\n\u003cp\u003e24-hour won-dollar trading represents a significant shift toward a more global operating system for the Korean foreign exchange market. Domestic and international investors and corporations will benefit from reduced trading gaps, and the Korean capital market will gain a testing ground to demonstrate improved market accessibility in discussions regarding inclusion in the MSCI Developed Markets Index.\u003c/p\u003e\n\u003cp\u003eHowever, 24-hour trading is not an end in itself but rather the beginning of a validation process. The system’s effectiveness will be maximized only if sufficient liquidity is maintained overnight and if settlement, surveillance, and risk management operate stably even on public holidays and during early morning hours. The key going forward is not “how long the market stays open,” but rather “how deep and reliable the market operates during the hours it is open.”\u003c/p\u003e\n","tags":["Korean won","Foreign exchange market","Won dollar exchange rate","MSCI","Market opening","Exchange rate volatility"],"faqs":[{"question":"Will all KRW transactions be available 24 hours a day starting July 6, 2026?","answer":"No. This change directly affects won-dollar trading through brokerage firms. Trading hours for the won against currencies other than the dollar—such as the euro, the yen, and the pound—will remain unchanged, from 9:00 a.m. to 3:30 p.m."},{"question":"What exactly are the operating hours for 24-hour won-dollar trading?","answer":"During New York Daylight Saving Time, the service operates continuously from 6:00 a.m. on Monday to 6:00 a.m. on Saturday, based on Korean Standard Time. Outside of Daylight Saving Time, the service operates from 7:00 a.m. on Monday to 7:00 a.m. on Saturday."},{"question":"Can I trade the won against the dollar on Korean public holidays?","answer":"Except for weekends and January 1, won-dollar trading is available even on domestic public holidays. However, actual fund settlements are processed based on bank business days."},{"question":"Can individuals also exchange currency 24 hours a day?","answer":"Just because the Seoul foreign exchange market operates 24 hours a day does not mean that all banks and securities firms will immediately extend their individual currency exchange services to 24 hours. You should check the guidelines provided by each financial institution for actual operating hours, spreads, preferential rates, and maintenance periods."},{"question":"Does this measure guarantee inclusion in the MSCI Developed Markets Index?","answer":"We do not guarantee this. While 24-hour trading is an important measure for improving market accessibility, MSCI also evaluates the off-shore settlement capabilities of the Korean won, overnight liquidity, the actual operational convenience for foreign investors, and securities settlement and disclosure systems."},{"question":"Can 24-hour trading increase exchange rate volatility?","answer":"There are two sides to this. While a reduction in trading gaps may mitigate gap volatility, thin overnight liquidity can cause price distortions even from small orders. Therefore, providing overnight liquidity and real-time market monitoring are crucial."},{"question":"What are the benefits for import-export companies?","answer":"You can exchange or hedge dollar-denominated sales or payment costs over a wider time frame. However, you must also review your company’s internal approval procedures, whether your bank offers nighttime services, and how payments are processed on the due date."},{"question":"Does the trading benchmark rate change immediately?","answer":"The current daily closing exchange rate and trading reference rate will remain in effect for the time being. Alternatives, such as a time-weighted average exchange rate tailored to a 24-hour trading system, may be implemented after a grace period to minimize market disruption and once the relevant regulations have been revised."},{"question":"What is RFI?","answer":"RFI refers to overseas foreign exchange institutions registered to participate in the domestic foreign exchange market. While increased RFI participation could improve access to won-denominated trading for foreign investors, the actual impact must be assessed based on nighttime trading volume and quote depth."},{"question":"Do \"the internationalization of the Korean won\" and \"24-hour trading\" mean the same thing?","answer":"They are not the same. 24-hour trading is a measure to extend the hours during which the won and the dollar can be traded, while the internationalization of the won is the process of expanding the institutional and market infrastructure that allows the won to be held, used for settlements, raised, and hedged overseas."}],"sources":[{"url":"https://www.yna.co.kr/view/AKR20260530042800002","title":"Yonhap News: Won/dollar trading to operate 24 hours a day starting July 6…including public holidays","type":"source"},{"url":"https://www.reuters.com/world/asia-pacific/south-korea-starts-24-hour-trading-dollar-won-2026-07-06/","title":"Reuters: South Korea Begins 24-Hour Trading of the Dollar-Won Pair","type":"source"},{"url":"https://www.reuters.com/world/asia-pacific/msci-keeps-south-korea-emerging-market-status-cites-fx-accessibility-2026-06-23/","title":"Reuters: MSCI Maintains South Korea's Emerging Market Status, Citing Foreign Exchange Accessibility","type":"source"},{"url":"https://www.kcmi.re.kr/report/report_view?report_no=2295\u0026s_report_subject=\u0026s_report_type=\u0026tabIdx=4\u0026thispage=1","title":"Capital Market Research Institute: The Impact of Extended Foreign Exchange Market Trading Hours on Exchange Rate Volatility","type":"source"},{"url":"https://mofe.go.kr/nw/nes/detailNesDtaView.do?menuNo=4010100\u0026searchBbsId1=MOSFBBS_000000000028\u0026searchNttId1=MOSF_000000000076455","title":"Ministry of Finance and Economy: Announces Comprehensive Roadmap for Foreign Exchange and Capital Markets to Facilitate Inclusion in the MSCI Developed Markets Index","type":"source"},{"url":"https://www.msci.com/indexes/index-resources/market-classification","title":"MSCI: Market Classification","type":"source"},{"url":"https://www.msci.com/downloads/web/msci-com/indexes/index-resources/market-classification/MSCI%202026%20GLOBAL%20MARKET%20ACCESSIBILITY%20REVIEW%20REPORT.pdf","title":"MSCI: 2026 Global Market Accessibility Review Report","type":"source"}],"images":[{"id":49,"url":"https://injoys.com/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsiZGF0YSI6NDg5LCJwdXIiOiJibG9iX2lkIn19--023fe12e2c9357122d51aba2f4fcb01bd5251ee4/ai-4bad0d0d.webp","is_representative":true,"generation_method":"ai_image","license":"ai_generated","mime_type":"image/webp","translations":{"ko":{"alt":"서울 skyline과 지구본, 낮과 밤을 잇는 화살표, 동전과 환율 차트 화면","caption":"서울 외환시장의 24시간 거래 확대를 상징적으로 보여준다.","description":null},"en":{"alt":"Seoul skyline with a globe, day-to-night arrows, coins, and forex chart screens","caption":"The illustration symbolizes Seoul’s expanded 24-hour foreign exchange trading.","description":null},"ja":{"alt":"ソウルの街並み、地球、昼夜を結ぶ矢印、硬貨と為替チャート画面","caption":"ソウル外国為替市場の24時間取引拡大を象徴している。","description":null},"es":{"alt":"Horizonte de Seúl con globo, flechas día-noche, monedas y pantallas de gráficos cambiarios","caption":"La ilustración simboliza la ampliación del mercado cambiario de Seúl a 24 horas.","description":null},"id":{"alt":"Cakrawala Seoul dengan globe, panah siang-malam, koin, dan layar grafik valas","caption":"Ilustrasi ini melambangkan perluasan perdagangan valas Seoul menjadi 24 jam.","description":null},"pt":{"alt":"Horizonte de Seul com globo, setas dia-noite, moedas e telas de gráficos cambiais","caption":"A ilustração simboliza a ampliação do mercado de câmbio de Seul para 24 horas.","description":null},"zh-hant":{"alt":"首爾天際線、地球、連接日夜的箭頭、硬幣與外匯走勢螢幕","caption":"這幅插圖象徵首爾外匯市場擴大至24小時交易。","description":null}}},{"id":50,"url":"https://injoys.com/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsiZGF0YSI6NDk1LCJwdXIiOiJibG9iX2lkIn19--63cd1b608cc4a965fd885f47b72610967c6c2afe/ai-986ddc56.webp","is_representative":false,"generation_method":"ai_image","license":"ai_generated","mime_type":"image/webp","translations":{"ko":{"alt":"야간 외환 거래실 화면에 세계 지도, 도시 연결선, 차트와 보안 아이콘이 표시된 모습","caption":"24시간 원·달러 거래를 상징하는 글로벌 외환 모니터링 화면이다.","description":null},"en":{"alt":"Night trading desk with a world map, connected city icons, charts, and a security shield","caption":"The scene visualizes around-the-clock global foreign exchange monitoring.","description":null},"ja":{"alt":"夜の取引デスクに世界地図、都市アイコン、チャート、セキュリティ盾が表示されている","caption":"24時間の為替取引を支えるグローバル監視画面を表している。","description":null},"es":{"alt":"Mesa de negociación nocturna con mapa mundial, ciudades conectadas, gráficos y escudo de seguridad","caption":"La escena representa la vigilancia global del mercado de divisas durante 24 horas.","description":null},"id":{"alt":"Meja trading malam hari dengan peta dunia, ikon kota terhubung, grafik, dan perisai keamanan","caption":"Tampilan ini menggambarkan pemantauan valuta asing global sepanjang waktu.","description":null},"pt":{"alt":"Mesa de negociação noturna com mapa mundial, cidades conectadas, gráficos e escudo de segurança","caption":"A cena representa o monitoramento global do câmbio em operação contínua.","description":null},"zh-hant":{"alt":"夜間交易桌前顯示世界地圖、連線城市、圖表與安全盾牌","caption":"畫面呈現全天候全球外匯交易監控的情境。","description":null}}}],"published_at":"2026-07-06T11:49:09+09:00","updated_at":"2026-07-06T11:49:09+09:00","license":"cc_by","translation_status":"reviewed","available_locales":["ko","en","ja","es"],"data_locales":["ko","en","ja","es","id","pt","zh-hant"],"url":"https://injoys.com/en/articles/korea-won-dollar-24-hour-fx-trading-2026"}