This rally was not driven by a single news headline. Instead, it reflected a combination of improving pricing expectations, renewed institutional buying, and optimism that the memory downturn may have been shorter than feared.
The main catalyst is pricing. If Morgan Stanley's forecast of a roughly 25% increase in memory prices proves accurate, earnings leverage for memory manufacturers can be substantial because many production costs are relatively fixed. Rising average selling prices can therefore translate into a disproportionately large improvement in margins.
SK Hynix's earnings on 29 July will be particularly important because it is the world's leading supplier of high-bandwidth memory (HBM) used in AI accelerators. Investors will focus on:
HBM demand and pricing.
DRAM and NAND pricing guidance for the second half of the year.
Capacity expansion plans.
Whether management raises its outlook for 2027.
If SK Hynix reports strong results and maintains an optimistic outlook, the rally could broaden across the memory ecosystem. Conversely, if management signals weaker pricing or slower AI demand, the sector could see another bout of profit-taking after such a sharp rebound.
My preference among the three is:
1. SK hynix: The strongest positioning in HBM and currently one of the biggest beneficiaries of AI infrastructure spending. It arguably has the best long-term competitive position.
2. Micron Technology: A balanced choice with exposure to both AI-driven HBM and traditional DRAM and NAND markets. It is also easier for many international investors to access through US exchanges.
3. SanDisk: Potentially the highest-risk, highest-reward option. It has greater exposure to NAND flash, which is typically more cyclical and volatile than DRAM. If the NAND recovery accelerates, SanDisk could outperform, but it may also experience the largest swings if sentiment weakens.
Overall, I remain constructive on the sector over the medium term, but after gains of 10% to 14% in a single session, some near-term consolidation would not be surprising. The key question is no longer whether memory prices have bottomed, but whether AI demand can keep supply tight enough to sustain higher pricing into 2027. If SK Hynix confirms that outlook next week, it would strengthen the case that this is more than just a short-lived relief rally.
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