Yen's Historic Intervention Puts 155 Per Dollar Under Scrutiny

Japan's historic joint intervention with the US is making investors question whether the yen can strengthen beyond 155 per dollar. This threshold has significant implications, as strategists view it as a key test for the rally's staying power.

The level of 155 holds more importance than just standard technical analysis. Japan's April and May interventions briefly brought dollar-yen down toward 155 before it resumed climbing, suggesting that official action only buys time.

Now, investors are weighing whether a clean break below 155 signals a structural shift in the market. This is what Steve Englander, Global Head: G10 FX Research at Standard Chartered, has to say about the move to intervene and its impact on global currencies.