Seoul Forex Market Goes 24-Hour for KRW/USD Trading from July 6, Boosting Foreign Investor Access

The Quick Take

• Seoul's KRW/USD foreign exchange market will operate 24 hours continuously from July 6, 2026, expanded from the current 17-hour window.
• The change enables KRW/USD trading on all weekdays including Korean public holidays, significantly boosting global investor access.
• The expanded trading window will improve liquidity and reduce the bid-ask spread premium foreign investors currently pay for off-hours currency transactions.

South Korea's Seoul Foreign Exchange Market Operating Council approved a historic expansion of KRW/USD trading hours to a full 24-hour continuous format from July 6, 2026. Currently, KRW/USD trading runs from 9am to 2am the following day—a 17-hour window that leaves significant gaps for global investors in US time zones who want to manage Korean currency exposure during their active trading hours. The new continuous session will run from Monday 6am through Saturday 6am Seoul time during New York summer time, covering all major global trading centers continuously.

The practical market impact is significant: a 24-hour KRW/USD market removes the off-hours liquidity premium that foreign investors currently pay when executing large Korean equity or bond position hedges outside Seoul market hours. This is a direct reduction in transaction costs for foreign institutional investors managing Korean equity and bond portfolios, which should marginally reduce the effective cost of holding Korean assets and could attract incremental foreign institutional inflows. The timing aligns with Korea's broader financial market liberalization agenda, including MSCI World Index inclusion efforts that have been partially conditioned on improving market accessibility.

The forward signal is whether increased trading hours translates into measurable improvement in won liquidity metrics—bid-ask spread narrowing, reduced price gaps at the open, and improved correlation between Korean equity returns and currency hedging costs for foreign holders. The macro variable is the US-Korea interest rate differential, which currently drives significant FX hedging demand. If the Federal Reserve maintains higher rates while BOK holds steady, the forward premium on KRW/USD positions becomes a meaningful drag on foreign Korean equity returns that the 24-hour market access helps investors manage more efficiently.

Synthesized from 3 sources.