Traders doubt Japan's pension fund can sustain the yen's sudden rally

After the yen's sudden rally on Friday, traders are questioning whether the Japanese government will follow through on calls for the massive GPIF pension fund to shift assets back into domestic investments. GPIF manages roughly $1.7 trillion, and a portfolio reallocation could sustain the yen's gains, but markets remain sceptical. The uncertainty is keeping currency-market volatility elevated.