U.S. equities retreated on September 23, 2026, as a sharp jump in Treasury yields overshadowed Wall Street for a second straight session. The move was driven by a stronger-than-expected reading on business activity and a soft five-year note auction, both of which reinforced bets that the Federal Reserve could raise interest rates again in October.

Indices Retreat as Yields Surge

The S&P 500 fell 0.75% to close at 7,706.03, the Nasdaq Composite dropped 1.13% to 26,936.04, and the Dow Jones Industrial Average lost 352.10 points, or 0.68%, to finish at 51,511.59. Ten of the 11 S&P 500 sectors ended the session lower, with communication services, utilities and consumer discretionary among the weakest performers. Cybersecurity names bucked the trend, with CrowdStrike and Palo Alto Networks among the session's gainers as investors rotated toward companies tied to AI safety amid the broader risk-off tone.

Hot PMI Data Reignites Inflation Fears

S&P Global's flash U.S. Composite PMI jumped to 58.4 in September from 56.0 in August, the highest reading since July 2021. The Manufacturing PMI printed 57.0, well above the 53.7 consensus and one of the largest positive surprises in years, while the Services PMI came in at 58.7 versus expectations of 55.8. The data pointed to broad-based economic re-acceleration, but also stoked concern that resilient demand could keep inflation elevated, pushing the 10-year Treasury yield above 5.1% intraday, its highest level since July 2007 and its largest one-day jump in more than a year.

Weak Auction and Fed Comments Add Pressure

A $70 billion sale of five-year notes priced at 5.033%, tailing roughly 3 basis points with a bid-to-cover ratio of 2.212, the weakest demand for the tenor since 2018. Primary dealers were left absorbing a larger-than-usual share of the offering, a sign that investor appetite for the debt was thin. The soft auction pushed the five-year yield above 5% for the first time since 2007. Separately, Federal Reserve Governor Michael Barr said further policy adjustments were likely needed to bring inflation back to target, comments traders read as support for another hike. Odds of an October rate increase rose to roughly 66%, up from about 55% the prior day.

Oil Rebounds as Housing Costs Climb

West Texas Intermediate crude rose 2.4% to settle near $92.71 a barrel, while Brent crude climbed 2.4% to above $101, snapping a five-session losing streak. Gold eased from its morning levels as the yield spike weighed on the metal. In housing, KB Home shares fell despite topping earnings estimates, as the builder flagged difficult conditions for buyers, with the average 30-year mortgage rate climbing to roughly 7.12%, its highest level in more than two years.

The session came a week after the Federal Reserve raised its benchmark rate to a range of 3.75% to 4.00% under Chair Kevin Warsh, and as investors also tracked a Trump-Xi summit underway in Washington. With Treasury yields at multi-decade highs and the next Fed decision weeks away, traders are likely to keep a close watch on upcoming inflation and labor data for clues on the central bank's next move.

Daily market analysis by BCM Markets.