Micron and Sandisk lead a sharp tech selloff in a ‘gut-check’ moment for AI stocks

Micron (MU) and SanDisk (SNDK) are at the center of a sharp tech selloff framed as a 'breather' from AI momentum, with the move described as a 'gut-check' moment for the broader AI trade. MU enters the selloff with genuinely strong fundamentals: $37.4B in revenue (+48.9% YoY), 39.8% gross margins, and $7.59 diluted EPS — the HBM memory cycle is clearly running hot. SNDK's picture is messier: revenue grew only 10.4% YoY to $7.4B but the company is bleeding at the net income line, posting -$11.32 diluted EPS and -22.3% net margins, suggesting a recent spinout still working through its cost structure.

The key question is whether this selloff is a healthy reset that creates a re-entry in MU at better levels, or the beginning of a broader AI capex de-rating that pressures memory multiples. Watch for whether MU holds its recent earnings-driven support levels — a break there would signal the market is questioning HBM demand durability, not just taking profits. SNDK's negative earnings make it more vulnerable to sustained risk-off pressure with less fundamental cushion.