Sandisk's AI-fueled rally meets correction as ETF weight and earnings miss spark decline
Sandisk Corporation has surged more than 4,000% since its 2025 spin‑off, driven by a global NAND shortage and soaring AI‑driven memory demand. The company now accounts for roughly 6% of the Schwab U.S. Small‑Cap ETF (SCHA), a concentration that helped the fund post strong recent returns.
In mid‑July 2026 the stock fell sharply after the company issued weaker‑than‑expected fourth‑quarter revenue guidance, dropping about 25% on the day and contributing to a broader market pullback despite overall gains in the S&P 500 and Nasdaq. Analysts note the rally may be losing momentum; a Seeking Alpha review rates the stock a "Hold" and warns that multiyear supply contracts and new high‑bandwidth flash products may not offset cyclical memory‑price risks.
Institutional investors remain active. The State of Michigan Retirement System increased its Sandisk stake to 38,601 shares valued at $24.5 million. Other funds such as Dimensional, First Trust, and Blair William & Co. have also added positions this quarter. Meanwhile, a Vanguard‑versus‑Schwab small‑cap ETF comparison highlights that Sandisk’s weight in SCHA explains part of the fund’s outperformance relative to Vanguard’s VB, which lacks the stock.
Overall, Sandisk’s performance continues to shape small‑cap equity dynamics and influences investor sentiment amid a technology‑driven market rally.