zhingle
09-21

🔥 Friday’s memory rally was bigger than just SNDK — and that’s exactly why I’m still bullish on the memory trade.

At first glance, SNDK’s +10.99% looks misleading because the move was heavily amplified by its upcoming S&P 100 inclusion. And yes, index inclusion creates forced/passive buying flows, not fundamental memory demand. So I wouldn’t count the entire +10.99% as evidence of stronger memory fundamentals.

But here’s the important part: take SNDK out of the equation and the memory complex was STILL green. MU gained +3.92%, breaking back above $1,000, while SK Hynix added +2.46%. That synchronized movement matters much more to me than SNDK’s headline gain.

📌 This is the key distinction:

SNDK had an extra catalyst, but the sector itself didn’t need that catalyst to move.

If this were purely an SNDK/index-inclusion story, I’d expect the rest of memory to be relatively quiet. Instead, MU and SK Hynix continued higher. That suggests investors are still positioning around the broader AI-memory supply/demand story rather than simply chasing one stock.

And the setup is becoming increasingly interesting. AI infrastructure isn’t just creating demand for GPUs anymore — it is pulling enormous amounts of high-performance memory into the ecosystem. HBM demand is competing for manufacturing capacity, while conventional DRAM/NAND supply is also being affected by how manufacturers allocate capacity and capital.

That’s why I think “memory is one trade” still makes sense, even though individual stocks will obviously have different catalysts and valuations.

🚀 SNDK = the high-beta expression.

🔥 MU = another major confirmation of the memory cycle.

🇰🇷 SK Hynix = confirmation from the HBM side of the ecosystem.

Friday therefore wasn’t simply “SNDK +11% because of S&P 100.” It was more nuanced: SNDK received an additional flow catalyst while the underlying memory basket continued moving in the same direction.

The real test now comes Monday. Once the S&P 100 inclusion becomes old news, SNDK loses one temporary catalyst. If the stock can maintain elevated levels while MU and SK Hynix remain firm, that would be a much cleaner signal that buyers are still backing the underlying memory thesis.

💡 My takeaway: don’t confuse SNDK’s magnitude of gain with the direction of the memory sector. The +10.99% was partly index-driven, but the fact that multiple memory names continued advancing is the more important signal.

Index inclusion may have accelerated Friday’s move — but it didn’t create the memory trend. The sector was already moving. 📈🔥

That’s why, for now, I still see memory as one broader AI-driven trade rather than a one-stock story.

Two-Thirds of Next Year's Capacity Already Sold — Who's Still Shorting Memory?
Memory led Tuesday's rally as the Nasdaq closed at a record: SanDisk +6.82% to $1,887.04, Micron +5.00% to $1,096.16, SK Hynix +3.45% to $195.37. Rosenblatt started SanDisk at Buy, target $2,400, and about two-thirds of its next-year capacity is already contracted; Bernstein puts Samsung's Q3 HBM revenue up 72% QoQ. Bears had their own headlines: Michael Burry added to his Micron short on Acer's supply warning, and Micron's $25B Taiwan fab faces a possible strike — the stock rose anyway. Selling next year's capacity now: locking in profit, or borrowing from the upside?
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