Wall Street Has Best CPI Day Since at Least 2023: Markets Wrap

Wall Street breathed a sigh of relief after a surprise slowdown in inflation spurred a stock rally and a plunge in bond yields, reinforcing bets the Federal Reserve is on track to keep cutting rates this year.

Equities erased their losses for 2025, with the S&P 500 up about 2% in its biggest gain since the aftermath of the US election. A surge in Treasuries pushed 10-year yields down by almost 15 basis points — easing fears that a 5% rate would be on the horizon. Commodities roared, with oil topping $80 a barrel. The concerted cross-asset advance was the best for a consumer price index day since at least late 2023, according to data compiled by Bloomberg.

The US CPI rose in December by less than forecast, reinvigorating bets the Fed will slash rates sooner than previously thought. Swap traders are back to fully pricing in a rate cut by July. That was a quick shift after Friday’s jobs data spurred bets officials would only be able to resume policy easing in September or October. Not to mention the wagers on hikes.

“Extreme sentiment led to a powerful post-CPI move,” said Steve Sosnick at Interactive Brokers. “The proximate cause of today’s rallies in stocks and bonds was a better-than-expected month-over-month core CPI reading, but the magnitude of the rallies reflected the jittery sentiment that had pervaded markets.”

To Tina Adatia at Goldman Sachs Asset Management, while the latest CPI release is likely insufficient to put a January rate cut back on the table, it strengthens the case that the Fed’s cutting cycle has not yet run its course.