The S&P 500 rose 0.4% on July 15, 2026, as PayPal jumped 17.2% to lead the index and Pentair sank 15.0%. Chipmakers and memory names filled the day’s losers, while financials clustered near the top.
The S&P 500 rose 0.4% on July 15, 2026, a muted headline move that masked sharp swings underneath. The Dow 30 added 0.3% while the Nasdaq 100 slipped 0.3%, splitting the three major benchmark indices on the day.
PayPal leads, financials cluster at the top
PayPal drove the day’s gains, climbing 17.2% despite sitting 4.3% lower for the year. BlackRock rose 6.6% and Invesco added 5.5%. CBRE and Bank of New York Mellon rounded out the leaders, rising 6.2% and 5.1%.
Apple also joined the winners, gaining 4.0% and holding a 20.7% advance for the year to date.
Chipmakers and memory names drag the tape
The losers told a different story. Pentair fell 15.0%, the steepest drop of the session, while Erie Indemnity gave back 11.9%. Dell Technologies dropped 9.8%, though it still carries a 229.3% gain for the year.
Memory and semiconductor stocks bore much of the pressure. Western Digital lost 8.8%, SanDisk fell 8.1%, and Micron Technology slid 8.0%, even as several hold triple-digit year-to-date returns. Marvell Technology closed the losers list, down 7.3%.
The weekly and monthly picture
Over five days, the S&P 500 gained 1.2%, with IBM the worst weekly performer at a 30.1% decline. Across 21 days, the index added 1.9% as Moderna led all names with a 36.8% climb and Oracle sat at the bottom, off 27.8%.
Source: Trefis
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