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.

Samsung Profit Guidance Doubles: Can SanDisk Take the Baton Tonight?
SK Hynix surged 13.30%, Micron gained 5.86%, and SanDisk rose 7.66% Wednesday as Hynix’s record results and Samsung’s guidance lifted memory-cycle hopes. Hynix posted KRW 104.6T revenue and KRW 83.3T operating profit; Samsung guided to KRW 195T and KRW 107.4T, not final results. SanDisk reports early Friday Beijing time, with consensus revenue of $10.85B and EPS of $47.15—above its guidance range. Bulls see synchronized HBM, NAND, and storage pricing; bears warn high expectations leave little room for misses. What would confirm the cycle has further room to run?
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