US-Japan Intervention Narrows Japanese Yen Undervaluation

Japanese authorities have intervened in the foreign exchange market for the second time this year, and it's having an impact on the valuation of the Japanese Yen (JPY). The intervention was a joint effort with the United States (US), which is rare - the last time they worked together like this was in 2011. According to DBS Group Research Strategist Chang Wei Liang, the US participation adds credibility to Japan's actions and may reduce the scale of future interventions.

Liang notes that the undervaluation of the JPY has narrowed since the intervention. He explains that both the South Korean Won (KRW) and Renminbi (RMB) are also undervalued, and any efforts to limit JPY weakness will help alleviate pressure on these regional currencies. This coordinated action is seen as a way to ease selling pressure on Asian currencies.

The intervention has potential implications for the US Treasury market, where heightened volatility could be triggered by large-scale asset sales. However, with US participation, Japan's actions may have a more significant impact than they would otherwise.