BOJ Disappointment Leaves Yen Vulnerable to Sharp Price Movements

The Japanese yen is vulnerable to sharp price movements and further declines in the coming week as Japan observes a three-day holiday, reducing trading liquidity. Investors are disappointed with the Bank of Japan's (BOJ) decision not to provide stronger guidance on future interest rate hikes.

On Friday, the currency slid 1.3% against the dollar after two BOJ board members dissented from the decision to raise borrowing costs. Later that day, reports emerged that central bank officials had called market participants for a potential rate check, which did little to stem losses. The yen ended the session at 156.88, down over 2% for the week.

According to James Reilly, senior markets economist at Capital Economics, 'it seems fair to say that a material upturn in the yen's fortunes vis-á-vis the US dollar will depend on the US side.' The BOJ has historically stopped the yen from gaining ground after meetings, and investors are now looking to the Federal Reserve's actions for guidance.

The thinner liquidity expected during Japan's holiday period presents an opportunity for authorities to intervene in the market, potentially leading to rapid price swings. A similar window around the Golden Week holiday in April saw Japan step in to arrest further weakness in the yen, which had slid beyond 160.