Why SanDisk (SNDK) fell 4.22%
SanDisk (SNDK) fell 4.22% on August 8, 2026 — Weak SanDisk guidance triggers AI chip selloff.
What happened
SanDisk issued weak forward guidance despite earnings that beat expectations, signaling softer demand ahead for NAND flash memory and raising concerns about the durability of the AI memory cycle.
Why it moved
Softer guidance compresses investor expectations for NAND pricing and margins going forward; the AI memory supercycle that sustained elevated pricing through summer is rolling over as supply has caught up and demand…
Why it matters
SanDisk's weakness is emblematic of the AI Memory theme itself — HBM and DRAM shortages lifted pricing, but the supply/demand rebalance is now pressuring the entire memory cohort, with the cycle that sustained Micron…
What would break the thesis
If management clarifies that demand remains intact or raises full-year NAND margin guidance in coming weeks, the conviction in a memory cycle downturn weakens and the stock could recover.