NEW YORK / RankWire.AI / – U.S. equities finished on a higher note Wednesday, with the S&P 500 climbing 16.22 points, or 0.21%, to close at 7,707.98. The Dow Jones Industrial Average increased by 119.65 points, or 0.22%, ending the day at 53,463.05. The Nasdaq Composite added 41.38 points, or 0.16%, reaching 26,331.09. These gains ended a three-day losing streak across all three major U.S. stock indexes.
Market movements were largely influenced by the bond market after the U.S. Treasury Department announced increased liquidity support buybacks for longer-dated debt. Starting September 9, the maximum purchase size will be raised to at least $4 billion per operation, up from $2 billion. This change applies to nominal coupon securities in the 10-to-20-year and 20-to-30-year maturity ranges. The department stated that these larger purchases will continue through November 4, following strong volumes of high-quality offers.
In response to the announcement, Treasury yields declined as bond prices moved upward. The benchmark 10-year yield dropped to approximately 4.65%, while the 30-year yield fell to around 5.20%. On Tuesday, the 30-year yield had climbed to 5.337%, its highest level since 2007. The decrease in yields alleviated some pressure that rising borrowing costs had exerted on equities. This shift also contributed to Wall Street’s recovery from earlier weekly declines.
Healthcare Sector Bolsters Market Support
Following positive late-stage results from Moderna and Merck in a melanoma study, healthcare stocks strengthened the market. Moderna shares surged 177%, while Merck shares increased by 12.6% during trading. The Phase 3 INTerpath-001 trial evaluated intismeran autogene combined with Keytruda after surgery for high-risk melanoma patients. The trial successfully met its primary endpoint for recurrence-free survival, as well as a key secondary endpoint measuring survival without cancer spread to distant sites.
Consumer equities also experienced gains after several large corporations announced quarterly earnings. Estée Lauder rose more than 16% following its earnings report, while Target and Lowe’s also saw increases after releasing their latest financial results. Smaller companies outperformed their large-cap counterparts, with the Russell 2000 advancing about 0.5%. These developments helped extend the market’s recovery beyond healthcare sectors. Technology shares showed mixed performance, limiting the overall gains in major indexes.
Major Indicators Still Down for the Week
Despite Wednesday’s positive session, the primary U.S. stock indexes remained lower for the week. The S&P 500 was roughly 1% below its level from last Friday, with the Dow down around 0.5%. The Nasdaq declined approximately 1.5%. The rebound followed several sessions during which rising long-term yields suppressed stock valuations and prompted investors to adopt a more cautious approach across key sectors.
After Wednesday’s close, the major averages remained firmly in positive territory for 2026. The S&P 500 has gained about 12.6% since January 1, while the Dow has increased approximately 11.2%. The Nasdaq was up around 13.3%. Wednesday’s gains reflected a modest recovery on Wall Street, driven by declining Treasury yields and strong healthcare sector performance. The U.S. Treasury Department’s buyback announcement and the melanoma trial results stood out as the most influential market catalysts during the trading day.