USD/CHF refreshes weekly low near 0.8430 ahead of Fed policy announcement

• USD/CHF falls to near 0.8430 as traders' big bets on Fed large rate cuts weigh on the US Dollar.
• The Fed is poised to deliver its first interest rate cut decision in more than four years.
• Investors expect the SNB to cut interest rates further in its policy meeting later this month.

The USD/CHF pair posts a fresh weekly low near 0.8430 in Wednesday's European session. The Swiss Franc asset weakens as the US Dollar (USD) falls back after a short-lived pullback move. The US Dollar Index (DXY), which tracks the Greenback's value against six major currencies, declines to near 100.70.

The Greenback faces selling pressure ahead of the Federal Reserve's (Fed) monetary policy announcement at 18:00 GMT in which the central bank is widely anticipated to cut interest rates. This would be the Fed's first dovish decision in more than four years. However, investors will pay close attention to the interest rate cut size and the Fed's dot plot, which shows where policymakers see Federal Fund rates heading in the short and long term.

Market participants are curious about the Fed's likely rate cut to size to understand how bad the current labor market's health is due to the long maintenance of a restrictive monetary policy stance. According to the CME FedWatch tool, the likelihood of the Fed reducing interest rates by 50 basis points (bps) to 4.75%-5.00% has increased to 63% from 14% a week ago.

Ahead of the Fed's policy decision, the risk appetite of investors is high. S&P 500 futures have posted decent gains in European trading hours.

Meanwhile, the Swiss Franc (CHF) performs strongly against the US Dollar despite growing speculation that the Swiss National Bank (SNB) will extend the policy-easing cycle in September's monetary policy. The SNB is expected to deliver a third straight interest rate cut as the Swiss inflation has softened significantly. Annual Swiss Consumer Price Index (CPI) decelerated to 1.1% in August, the lowest level since March of this year.