Wall Street Wrap: How the S&P 500, Dow and Nasdaq Performed
October 15, 2026 | ATN Trade & Finance
A volatile two-day stretch defined the mid-October trading picture, as a hotter-than-expected inflation print rocked markets on Wednesday before a broad rotation into value stocks helped stabilize things on Thursday.
Wednesday, October 14: CPI Triggers the Sell-Off
Wednesday was the worst day for equities in months. The S&P 500 fell 86.51 points to close at 7,718.94, a 1.1% drop — its fifth loss in the past six sessions and the steepest single-day decline since July. The Nasdaq Composite led the damage, tumbling 511.51 points (-1.9%) to 26,692.87 as AI and semiconductor stocks bore the brunt of the selling. The Dow held up better, slipping just 0.1% to 51,621.48. The Russell 2000 also fell 1.9%.
The trigger was the September CPI print, which showed month-over-month inflation accelerating beyond expectations, repricing Fed rate expectations sharply. Treasury yields spiked, with the 10-year briefly surpassing 5.2%. Megacap tech sold off on renewed concerns about AI data center buildout costs and the implications of higher-for-longer rates. Bank of America's 7.3% open-day decline after its earnings miss compounded the pressure on financials.
Thursday, October 15: Rotation Into Value
Thursday brought a partial recovery driven by sector rotation. The Dow surged approximately 616 points (+1.2%) to 52,238, outpacing the broader market by a wide margin in what analysts described as a classic "old economy" rotation. The S&P 500 recovered +0.35% to close around 7,746, while the Nasdaq Composite eked out a gain of just +0.19% — making the Dow-to-Nasdaq ratio of gains more than five to one on the session. Treasury yields pulled back roughly 10 basis points to around 5.085% on the 10-year, offering some relief to rate-sensitive names.
Bank earnings continued to shape the session: Goldman Sachs's blowout quarter (EPS $17.01 vs. $13.65 expected) anchored financial-sector strength, while megacap tech investors largely sat on the sidelines.
What this means for investors: The CPI-driven repricing has injected genuine uncertainty into the rate outlook — analysts now call a November hike a "coin flip." That's creating a market environment where traditional value and financials benefit while growth stocks face headwinds. The bigger test comes October 28–29, when Alphabet, Meta, Apple, Amazon, Microsoft, Nvidia, and Tesla all report — coinciding with the FOMC meeting.
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