Hot CPI Sends Bitcoin on a $1K Diet; Fed's December Hike Suddenly Back on the Menu 🍽️

U.S. inflation accelerated faster than expected in September, jolting financial markets and dragging bitcoin sharply lower on Wednesday morning. The Bureau of Labor Statistics reported that the Consumer Price Index rose 0.6% month-over-month, up from 0.4% in August and matching economist forecasts for 0.6%. Year-over-year, CPI climbed 3.7%, compared with 3.4% in August and above estimates for 3.6%. Core CPI, which strips out food and energy, also disappointed, rising 0.3% on the month — the same pace as August but above consensus expectations of 0.2%. Annual core CPI increased 2.6% versus 2.4% the prior month and above estimates for 2.5%.

Bitcoin (BTC $83,212.45) fell roughly $1,000 on the print, trading near $82,800, according to market data. Bond markets sold off, with the 10-year U.S. Treasury yield jumping 9.3 basis points to 5.308% and the 2-year yield soaring 13.1 basis points to 4.924%. Equity futures pointed lower, with Nasdaq 100 futures down 0.65% and S&P 500 futures off 0.3%, while gold slumped 1.5% to $4,116 per ounce.

Ahead of the release, several Federal Reserve officials had signaled that the central bank was likely to raise interest rates by 25 basis points before year-end. Market pricing had reflected that view, with most participants expecting the Fed to pause at its upcoming meeting later this month and then hike at its final 2026 meeting in early December. Wednesday's hotter-than-expected inflation data could revive the possibility of an October rate increase.

The September CPI report lands amid a broader repricing across rate-sensitive assets, with traders now reassessing the path of monetary policy and its implications for risk assets including cryptocurrencies. No Federal Reserve official had issued new public commentary on the inflation print as of the time of publication.