Analysts Predict Yen Gains May Boost Select Asian Currencies

According to strategists at Citigroup and Barclays, the recent appreciation of the Japanese yen could lift several Asian currencies due to their strong historical correlation. Analysts from both banks have indicated in separate client notes that the South Korean won, the Singapore dollar, and the Thai baht are positioned to benefit the most from the yen's strengthening trend.

The yen has rallied over the past week, rebounding after falling to its weakest level since the 1980s. This recovery was fueled by coordinated intervention from Japanese and U.S. authorities to support the currency. "Just as a weaker yen tends to drag down Asian currencies, we believe the reverse should also hold true," wrote Citigroup strategists Rohit Garg and Gordon Goh in a Sunday report. "A stronger yen should likewise have a positive impact on Asian currencies gaining strength."

Over the three trading sessions ending Monday, the yen surged more than 4% against the U.S. dollar following the joint intervention. During the same period, the South Korean won, the Thai baht, and the Philippine peso each advanced by at least 0.7%. The Bloomberg Asia Dollar Index, which tracks a basket of Asian currencies excluding the yen, rose by 0.5%.

Citigroup's strategists noted that over the past year, the Korean won, Singapore dollar, and Taiwanese dollar have shown the highest correlation with the yen. In contrast, the Indian rupee and the Indonesian rupiah have demonstrated the lowest sensitivity to yen movements.

Barclays strategists highlighted that the Korean won is the Asian currency most sensitive to yen fluctuations, which should help solidify its recent gains. "Given the coordinated nature of the recent USD/JPY intervention, its impact on Asian currencies may be greater than what historical beta coefficients alone would suggest," wrote a team including Mitul Kotecha in a Monday statement. They added that this dynamic could reinforce the rally in yen-sensitive currencies over the near term, particularly against the backdrop of a broader U.S. dollar pullback.