Won and Asian FX: KRW, TWD, INR and ASEAN Currencies — 2026-10-16
Hotter-than-expected US inflation data on October 15 triggered a broad sell-off in Asian currencies, with the Korean Won hitting a two-week low and South Korean stocks falling 8%. While the Indian Rupee managed a fifth consecutive session of gains supported by RBI interventions, the Indonesian Rupiah faced its biggest weekly decline since May as Bank Indonesia intensified forex market interventions.
Won and Asian FX: KRW, TWD, INR and ASEAN Currencies — 2026-10-16
Top developments
US Inflation Data Triggers Asian Currency Sell-Off
On October 15, hotter-than-expected US inflation data revived Federal Reserve rate hike concerns, causing the US dollar to strengthen and emerging Asian currencies to weaken. The Korean Won fell 6.3 won to close at 1,344.6 per dollar, marking a two-week low, while South Korea's stock market tanked by 8% amid a broader sell-off in AI-linked stocks. This move highlights the sensitivity of Asian FX to US macro data, with capital outflows pressuring the Won, Taiwan dollar, Philippine peso, and Indonesian rupiah simultaneously.
RBI Interventions Lift Rupee Despite Global Pressure
In contrast to regional weakness, the Indian Rupee appreciated 12 paise to close at 95.05 against the US dollar on October 15, logging its fifth straight session of gains. The Reserve Bank of India (RBI) has implemented five major steps to stabilize the currency, including opening a special dollar window for oil companies and cutting currency derivatives trading limits by 95% to curb speculation. These measures have helped the rupee recover from earlier lows near 96.79, though analysts warn that structural pressures and high crude oil prices remain a concern.
Rupiah Falls to Weekly Low as BI Intervenes
The Indonesian Rupiah weakened to Rp17,938–Rp17,955 per dollar on October 15, heading for its biggest weekly fall since May due to higher US yields and a firm dollar. Bank Indonesia (BI) intervened in the foreign exchange market to stabilize the currency, but the rupiah still closed down 0.20% as geopolitical risks and US rate hike expectations mounted. BI officials cited external factors, including US inflation and Middle East conflicts, as primary drivers of the currency's depreciation.
Korean Won Range-Bound Amid Exporter Flows and NDF Signals
Earlier in the week, the Won briefly hit a two-year low at 1,335.1 per dollar on October 12, driven by heavy dollar selling from exporters (nego) and offshore dollar futures selling. However, the subsequent rise to 1,344.6 by October 15 reflects the impact of foreign investor net selling in domestic equities and rising USD/KRW NDF premiums. The Bank of Korea has signaled support for a stronger won, but market participants note that strong buying interest and overbought conditions are testing the ₩1,350 resistance level.
Local view
Korea: Local media NewsPim reports that the Won is expected to remain around the 1,340 level, balancing strong dollar pressure against exporter dollar-selling flows. The Seoul Economic Daily noted that despite a sharp drop in the KOSPI and massive foreign equity outflows, the Won only rose 10 won before reversing, suggesting underlying resilience from trade surplus inflows.
India: Business Standard Hindi highlights Finance Minister Nirmala Sitharaman’s statement that the RBI’s priority is managing volatility rather than targeting a specific rupee price. Local stakeholders are closely watching the RBI’s new forex rules, which restrict rebooking of cancelled forward contracts, potentially increasing hedging costs for importers.
Indonesia: Bisnis.com notes that BI is continuing interventions to maintain stability amidst rising US interest rate expectations. The local press emphasizes that the rupiah’s decline is largely driven by global factors, including the strong dollar and geopolitical tensions, rather than domestic economic fundamentals.
Context & numbers
- USD/KRW: Closed at 1,344.6 on Oct 15 (down 6.3 won from previous close); hit 1,335.1 on Oct 12 (two-year low).
- USD/INR: Closed at 95.05 on Oct 15 (up 12 paise); recovered from 96.79 earlier in the month.
- USD/IDR: Closed near Rp17,938–Rp17,955 on Oct 15; JISDOR reference rate was Rp17,884 on Oct 9.
- KOSPI: Fell 8% on Oct 15, contributing to Won weakness via foreign equity outflows.
On the radar
- US CPI Data Impact: Markets are digesting the October 15 inflation print; further hawkish Fed signals could test the Won’s ₩1,350 resistance and the Rupiah’s Rp18,000 psychological level.
- RBI Policy Stance: Investors await further details on the RBI’s "five major steps" for currency stabilization, particularly regarding the effectiveness of the new derivatives limits in curbing speculative dollar demand.
- Bank Indonesia Intervention: Watch for increased verbal or actual intervention from BI as the Rupiah approaches the Rp18,000 mark, especially if US yields continue to rise.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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