The intraday reversal from -2%

The intraday reversal from -2% to +5.50% was purely passive fund flows rebalancing MSCI weights—which is why it immediately gave back gains after hours. While the $31B capacity commitments from Kioxia/SanDisk and CXMT’s trial production show long-term structural AI demand, chasing spot prices ($2,100 vs contract) usually ends poorly once supply catches up. Stick with names that have secured multi-year volume commitments.

SanDisk Surges 5.5% at Close — Index Rebalancing, Not Fundamentals?

SanDisk flipped a 2% intraday loss to close up 5.50%, on MSCI World and ACWI inclusion forcing mechanical passive buying — it gave back 1.06% after hours once the rebalance window shut. Micron rose 2.77% on 22.6M shares, half its 45.6M average; SK Hynix +2.20%. Kioxia and SanDisk committed over $31 billion to capacity, while CXMT's first-half revenue jumped 874% with HBM3E in trial production. 36GB HBM3E spot runs near $2,100, 4–5x contract — but Micron is locked into multi-year deals. Chase the spread, or wait for CXMT's yields?

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Comments

MatthewWalter
09-01
MatthewWalter
Contract vs spot spread only matters if channel inventory stays tight. Once inventory normalizes, that premium usually compresses way faster than capacity ramps do.

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