SanDisk Corp’s (SNDK) Impact on Small/Mid Cap Returns

Small-cap stocks experienced their strongest first-half performance since 1991 in 2026, with the Russell 2500 Value Index surging 17%, led by the technology sector. Riverwater Partners, an investment management firm, released its Q2 2026 Sustainable Value Strategy investor letter, stating that the strategy underperformed its benchmark due to the absence of SanDisk Corporation (SNDK).

SANDK rose approximately 720% year-to-date and contributed about 6% of the 2026 return for the index. The strategy's primary focus is on quality companies, and they remain committed to disciplined investing despite a lack of anticipated rotation toward higher-quality businesses. SANDK closed at $1,791.82 per share on September 18, 2026, and has shown significant year-to-date gains of 1,640.98%, with a market capitalization of $262.35 billion.

The firm acknowledges SANDK's potential but believes other AI stocks present greater upside and lower downside risk.