To The Moon

The memory trade is heating up again, but the biggest question is whether strong industry results can translate into another round of earnings surprises.

On Wednesday, $SK Hynix(000660.KS)$ surged 13.30%, $Micron(MU)$ gained 5.86%, and $SanDisk(SNDK)$ climbed 7.66%. The rally followed record results from SK Hynix and encouraging profit guidance from Samsung, strengthening expectations that the memory upcycle still has room to run.

The numbers are striking. SK Hynix reported KRW 104.6 trillion in revenue and KRW 83.3 trillion in operating profit. Samsung guided for KRW 195 trillion in revenue and KRW 107.4 trillion in operating profit. These are Samsung’s preliminary guidance figures, not final reported results.

Now attention turns to SanDisk, which is scheduled to report earnings early Friday Beijing time.

According to the figures provided, analyst consensus stands at $10.85 billion in revenue and $47.15 in earnings per share, above the company’s guidance range. That creates an important test: can SanDisk deliver results strong enough to justify the expectations already reflected in its share price?

1. Three companies, one powerful industry trend

The memory market is benefiting from several overlapping demand drivers.

High-bandwidth memory (HBM) is essential for advanced AI accelerators. Conventional DRAM supports servers and computing systems, while NAND flash provides the storage needed to handle growing volumes of AI data.

These markets are connected through the expansion of AI infrastructure, but they are not interchangeable. Strong HBM demand does not automatically guarantee higher NAND prices or better earnings for every memory producer.

For SanDisk, the crucial question is whether demand for NAND storage is translating into stronger pricing, improved margins and sustainable cash generation.

2. Why SanDisk faces a different earnings test

SanDisk’s business is more directly exposed to NAND flash storage than SK Hynix’s HBM-driven opportunity.

As AI workloads expand, data centres need greater storage capacity and faster access to information. That creates potential demand for enterprise SSDs and other storage products.

However, the memory industry is cyclical. Pricing can improve rapidly when demand strengthens and supply remains constrained, but capacity additions or weaker demand can eventually reverse the trend.

I would focus on three indicators in SanDisk’s results:

• NAND pricing: Are selling prices improving enough to support revenue and margins?

• Profitability: Is earnings growth supported by stronger operating performance rather than temporary factors?

• Forward guidance: Does management expect demand and pricing conditions to remain favourable in coming quarters?

These indicators would help distinguish a sustainable recovery from a short-lived earnings peak.

3. Beating expectations may not be enough

With memory stocks already rallying, the market may have priced in a substantial improvement in future earnings.

Even a strong earnings report can trigger a sell-off if management’s outlook disappoints or investors believe the best part of the cycle has already passed.

Conversely, commentary about tight supply, stronger enterprise SSD demand and sustained pricing could reinforce the bullish case.

The distinction is between reporting excellent results and demonstrating that those results can continue.

4. What would confirm that the memory cycle has further room to run?

I would look for evidence across the industry rather than relying on one company’s earnings.

First, strong pricing should persist across relevant memory products, not just HBM.

Second, demand should be supported by actual orders and customer consumption rather than inventory accumulation.

Third, manufacturers should remain disciplined about adding capacity. If supply expands too quickly, even strong AI demand may not prevent prices from weakening.

Finally, improving earnings should translate into healthy cash flow, giving companies the financial flexibility to invest without sacrificing balance-sheet strength.

My takeaway

The memory rally has a credible fundamental driver: AI infrastructure requires both computing power and storage capacity.

But the opportunity differs across companies. SK Hynix provides important evidence about HBM demand, Samsung’s guidance offers a broader view of its semiconductor and electronics businesses, and SanDisk’s results will provide a more direct test of the NAND storage market.

For SanDisk, the most convincing signal would be stronger-than-expected results accompanied by guidance that supports sustained pricing and profitability.

The key is not simply whether earnings beat consensus. It is whether the underlying economics suggest that the cycle can continue beyond the next quarter.

For discussion purposes only. Not financial advice.