The US Dollar Index (DXY) is heading for its best month since June, gaining nearly 2% in September following a hawkish turn at the Federal Reserve. The index reached 101.61 on September 29, its highest level since late July, and is approaching its highest closing price since April 2025.
The dollar's strength reflects recent Fed action. On September 16, the central bank raised rates by a quarter point, and officials have signaled that further tightening remains possible. Fed Governor Michael Barr said additional increases will likely be needed to bring inflation back to target, while New York Fed President John Williams indicated one more hike may be appropriate late this year.
Elevated oil prices and deadlocked US-Iran talks continue to fuel inflation concerns. The 30-year Treasury yield recently reached its highest level since 2002.
Bitcoin Defies the Dollar Headwind
Bitcoin has historically moved inversely to the dollar, yet the largest cryptocurrency has gained 6.14% in September despite the greenback's strength. This outperformance is noteworthy, as September has averaged a 2.42% loss historically.
Technical indicators suggest potential momentum ahead. On September 20, Bitcoin posted its first weekly close above its 50-week moving average since November 2025. Additionally, Bitcoin's September 8 golden cross came after 293 days below its 200-day average, a pattern that past occurrences have preceded stronger rallies.
October Historical Pattern
As traders enter October, the month carries a stronger historical record for Bitcoin. The cryptocurrency has finished October higher in 10 of 13 years, with an average return of 19.92% and a median return of 14.71%—the highest of any month.
Fed Data Ahead
Two key economic reports will test market sentiment in the coming days. The Personal Consumption Expenditures (PCE) price index, the Fed's preferred inflation gauge, is due Wednesday, followed by the monthly jobs report on Friday. Hot readings could revive October rate hike odds, which recently had slipped to roughly even. The Fed's next policy meeting is scheduled for October 28.
