SNDK Drops 9% as Broadcom's AI Guidance Drags the Whole Memory Complex Lower

The Catalyst Was Broadcom, Not Sandisk

SNDK's 9.38% slide to $1,652 is borrowed weakness. The trigger was Broadcom, which beat on the quarter — $2.44 EPS on $22.2 billion in sales — but guided third-quarter AI chip revenue to $16 billion against a Wall Street estimate of $17.2 billion. That gap was enough to spook a market that has priced AI infrastructure demand for perfection. The read-through to Sandisk is indirect at best: SNDK makes flash, not the custom accelerators Broadcom sells, but it manufactures the high-bandwidth flash that feeds AI data centers, so any hint of AI capex moderation hits the whole storage chain.

There is no SanDisk-specific bad news here. The company's last print was strong, and the move is a sector repricing, not a fundamental break.

The Whole Memory Tape Sold Off Together

This was a correlated risk-off move across memory and storage names, which is the tell that it's macro, not idiosyncratic. Micron and Western Digital both fell more than 8%, with Seagate down over 7% and semiconductor equipment makers off more than 6%. Micron specifically dropped around 7% as the Broadcom outlook rippled through the group.

Layered on top was a reignited bearish thesis on NAND's cyclical pricing history — the old argument that memory is a commodity that always mean-reverts, even mid-shortage. Retail, notably, leaned into the dip as a buyer while the tape bled.

The Setup: Profit-Taking on a Parabolic Year

Context matters for the magnitude. SNDK had been the best-performing stock in the S&P 500 for 2026, riding the AI-driven memory shortage to an enormous year-to-date run. A stock that has moved that far that fast doesn't need a company-specific reason to shed 9% — it just needs an excuse for the crowded long to take profits, and a sector-wide AI scare is exactly that.

The move comes two days after SNDK printed a record near $1,861. Holding above the prior congestion in the $1,690 zone keeps the broader uptrend intact; losing it cleanly would put the post-rally air pocket back in play. With $96.2 million in 24-hour volume on the HIP-3 perp, this is one of the more actively traded equity markets on the venue, so the price action here tends to track the underlying tape closely rather than drift on thin liquidity.