BoJ Rate Hike Expected to Outweigh Fed for Won

The Bank of Japan is expected to raise its benchmark rate to 1.25% on Friday. This move is projected to have a greater impact on the South Korean won than the Federal Reserve's decision on Wednesday. The current federal funds rate stands at 3.5% to 3.75%. A 25 basis point increase would lift it to 3.75% to 4.00%.

Strategists indicate that the yen's trajectory is the dominant force shaping the won's near-term path. The won and the yen have resumed trading in tandem. This coupling had faded during previous periods of dollar dominance. The recent alignment suggests a shift in global currency dynamics.

Currency Coupling Drives Market Moves

The yen-dollar rate strengthened from 159.82 to 154.4 this month. The won-dollar rate moved from 1,370.4 to 1,347.3 over the same period. Both currencies appreciated simultaneously. Min Kyung-won of Woori Bank states that a Japanese rate hike reflects more directly in the won's value. The logic links yen strength directly to won strength under current market conditions.

A Fed hike may do less to lift the dollar than in previous cycles. America's fiscal deficit acts as a structural headwind. The ongoing Middle East conflict also limits dollar upside. Major economies have already raised their own rates. The shock from additional U.S. tightening could therefore be muted. JPMorgan notes that countries with higher rates may withstand two to three Fed hikes.

Fed Hike Probability Near Ninety Percent

Expectations for the Fed to resume tightening have hardened. Core consumer prices in the United States rose 2.4% in August. This figure remains above the central bank's 2% target. International oil prices have climbed past $100 a barrel. Treasury yields have surged in response. These factors reinforce the case for a rate increase.

CME FedWatch priced in a 93% probability of a hike as of Tuesday. This would mark the first increase in more than three years. President Donald Trump has repeatedly pushed for rate cuts. Some market participants believe the Fed could hold rates steady. This scenario would represent a dovish surprise relative to current pricing. DBS cautions against chasing dollar gains ahead of the decision.

Tokyo Decision Sets Thirty-One Year High

A survey of 14 experts found that all expect a 0.25 percentage point increase. This would lift the benchmark rate to 1.25%. If implemented, this marks the highest level in 31 years. The yen pulled back from a seven-month high of 152.89. It traded around 154.70 on Tuesday. The currency remains supported by expectations of BOJ tightening. Markets anticipate continued strength in the yen.