📦 Every shelf of the AI storage pyramid is now spoken for. All three layers. At once.
🔥 HBM + DRAM, the hot layer → shortage through 2027+
$MU $SKHY $PENG
🌡️ NAND flash, the warm layer → 5-year supply deals signed
$SNDK $KXIAY
🧊 Nearline HDD, the cold layer, 80% of hyperscaler bytes → sold out through 2027
$WDC $STX
This has never happened simultaneously. Hot memory shortages are normal in booms. Cold storage selling out is not: it means the models aren’t just training, they’re RETAINING. Every token generated becomes data that has to live somewhere, forever.
The market prices AI as a compute story. The pyramid says it’s also an inventory story, and inventory that’s pre-sold for years is the closest thing to visibility this sector ever offers. 📊
The Risk: allocation booms end when capacity catches up, and every layer above is racing to add it. Sold out is a snapshot, not a guarantee.
But right now? The constraint is the investment. 🔑 DYOR