Yen Bulls Return as Traders Flip Long for First Time Since February

The yen has seen a significant shift in sentiment among traders and speculators, with hedge funds and other big players now bullish on the currency for the first time since February. According to data from the Commodity Futures Trading Commission (CFTC), speculators held 10,796 net long yen futures contracts in the week ending September 8, flipping from a net short position of 92,227 the prior week.

This change in positioning is significant because it indicates that big traders are now betting on a stronger yen. The CFTC data shows that futures positioning is a rough guide to what these traders are already betting on, not just what they think. Reuters has linked the yen's recent jump to expectations of faster interest rate hikes from the Bank of Japan and Japanese investors selling overseas assets.

The implications for markets are substantial, as a net long position can amplify price movements in USD/JPY. When a market swings from heavy net shorts to net longs, price action can feed on itself, leading to sharper two-way moves than the macro headlines alone would suggest.