Micron/SanDisk/WD up 14.3%
Micron, SanDisk, and Western Digital each rallied as much as 14.3%, driving the semiconductor-led Nasdaq surge.
Snapshot · Schwab Network
Stock Market Today: NVDA $4B Bet, AI Stocks & ORCL Under Pressure
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Jul 21, 2026
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Nasdaq up 1.9%
The Nasdaq posted the biggest gain of the major indices on the day, driven largely by a semiconductor stock rally.
Nvidia closed +2%
Nvidia closed 2% higher as investors rotated back into the AI trade ahead of major big tech earnings.
Oracle near 52-week low
Oracle's stock is trading just above its 52-week low as investors weigh the $7B collateral obligation alongside broader balance sheet concerns.
Russell 2000 up 1.5%
The Russell small-cap index gained 1.5% on the day, second only to the Nasdaq among major indices.
S&P 500 up 0.9%, Dow up 0.7%
The S&P 500 rose 0.9% and the Dow added 0.7%, both lagging the Nasdaq and Russell on the day.
SpaceX earnings date: August 4th
SpaceX will report its first post-IPO earnings on August 4th, triggering its unique insider lockup expiration mechanism.
911.5 million shares eligible for sale
Insiders can sell 20% of their eligible locked-up stock — totaling up to 911.5 million shares — on August 6th, the second full trading day post-earnings.
Additional 10% unlock at +30% above IPO
An additional 10% of locked-up shares could be freed if SpaceX closes at least 30% above IPO price for 5 of the 10 trading days heading into the report.
SpaceX short interest at 32% of float
According to S3 Advisors, about 260.6 million SpaceX shares are sold short, representing roughly 32% of the publicly tradable float.
