To The Moon

$SanDisk Corp.(SNDK)$and $Western Digital(WDC)$ both reported strong results.

SanDisk posted revenue of $8.97 billion and adjusted EPS of $39.25. Western Digital reported revenue of $3.75 billion and adjusted EPS of $3.56. Both beat expectations.

Yet the market reaction remained weak.

The key takeaway is simple: memory fundamentals are still strong, but investors no longer reward past results. They only care about how much guidance can beat expectations.

🔥 1. SanDisk’s Profit Surge Still Depends on Pricing

SanDisk’s revenue rose 51% quarter over quarter. Roughly two-thirds of the increase came from higher prices, while only one-third came from shipment growth.

This confirms that NAND supply remains tight and pricing is flowing directly into profits.

It also creates risk. If price increases slow, investors may quickly start pricing in a peak in margins.

⚔️ 2. The Problem Was Guidance, Not the Quarter

SanDisk guided for revenue of $10.3 billion to $10.8 billion and adjusted EPS of $44 to $46 next quarter.

Those numbers still imply strong growth, but revenue guidance came below the market’s roughly $11.2 billion expectation.

The report was not weak. Expectations were simply too high.

SanDisk now needs to prove that long-term contracts, enterprise SSD demand and customer expansion can make earnings more durable—not just dependent on NAND pricing.

💡 3. Western Digital Was Less Explosive, but More Stable

Western Digital reported 44% year-over-year revenue growth, a 54.4% adjusted gross margin and $1.28 billion in free cash flow.

For the next quarter, it expects about $4.1 billion in revenue, a 55% to 56% gross margin and adjusted EPS of roughly $4.

Its growth is less dramatic than SanDisk’s, but its earnings quality is more stable, supported by large-capacity HDD demand, improving margins and strong cash flow.

The problem is that much of this strength was already priced in.

🚀 4. What It Means for Memory Stocks

These results do not support the view that the memory cycle is over.

SanDisk confirmed that NAND pricing and data-center SSD demand remain strong. Western Digital showed that AI-generated data continues to support large-capacity HDD demand.

But the sector is becoming more selective:

• SanDisk offers higher pricing sensitivity, higher expectations and higher volatility.

• Western Digital offers lower upside sensitivity but stronger cash-flow visibility.

• Micron, SK Hynix and Kioxia will face the same test: not whether earnings grow, but whether guidance keeps moving higher.

The next phase may be driven less by the sector as a whole and more by product mix, order quality and margin durability.

🔻 5. The Main Risks

Investors should watch four variables:

• Slower NAND and HDD price increases;

• Customer inventory builds or early ordering;

• New supply returning to the market;

• Strong earnings that still fail to beat elevated expectations.

My view remains unchanged: memory fundamentals are still strong, but the trade has become much harder.

The next move will depend less on current profits and more on how long pricing, margins and long-term orders can remain strong.