Alex A.C.
Value/GARP Investor, Semiconductor & Financial Analysis, Electronics MEng
Agentic AI's repeated context favors cache memory and storage demand for Micron, SK hynix and Sandisk over fresh GPU computation. Per @demian_ai, about 95% of input tokens for DeepSeek V4.1 Flash on OpenRouter were cache hits; storage matters unless routing and caching keep almost everything in GPU memory. New products such as 3D DRAM and HBM-on-logic could be the final trigger for a full memory-stock re-rating. x.com x.com
SLC-based AI storage could tighten NAND supply because it needs more wafers per bit, favoring Micron and Sandisk. Per @jukan05 citing Lam Research's CEO, SLC holds about a third as many bits per cell as TLC; Nvidia and hyperscalers are developing SLC products, and Micron makes SLC. Per Korean media relayed by @jukan05, some Chinese cloud providers seek ten-year DDR5 and LPDDR5 deals with Samsung and SK hynix, undercutting fears of a Chinese glut; these are requests, not signed deals. x.com x.com x.com x.com
Micron and SK hynix pricing in a memory shortage past 2030 extends the memory-cycle case beyond the Street's 2028 expectation. SK hynix's record quarter adds evidence: per Wall St Engine, revenue rose 328% to $78.9B, operating profit rose 632% to $62.8B, and operating margin hit 80%. Agentic and physical AI could add demand as they roll out. x.com x.com
Micron's bet on 3D DRAM over rivals' 4F2 could give it an edge as AI memory demand rises. Micron expects shortages for at least two more years: HBM per GPU rose 3.6x from H100 to B300, inference memory per server doubled in three years, and agent context grows about 30x annually. It plans further 6F2 nodes, 1-delta DRAM in 2H27 and 400-plus-layer G11 NAND in 2027; processor-stacked vHBM is targeted around 2028. If Micron is right, rivals are spending on the wrong path. Overweight Micron. x.com
Networking, power and compute look more durable than cyclical memory in the AI buildout. Lumentum's revenue compounded year after year across the 2010s and 2020s, unlike Micron's; AWS revenue also compounded. Lumentum, Nebius, Bloom Energy and Credo should heavily outperform SanDisk and Micron from here, though AI itself remains heavily doubted. x.com x.com
A worsening memory shortage in 2027 could favor Micron, SanDisk and SK hynix as AI stocks. Samsung warns that the shortage will worsen then. x.com
High-bandwidth memory supply may not keep pace with AI demand, supporting the memory makers. Anthropic's S-1 says SK hynix, Samsung and Micron are expanding capacity, but warns that large buyers or competitors could reserve much of the available output. x.com
Inflation, rising rates, Chinese competition and rising AI-related financial costs are pressuring the memory market. Micron, Samsung and SK hynix look exposed; waiting for the cycle to turn. x.com x.com
Micron's ordinary memory could see tighter supply because HBM consumes far more factory capacity than conventional DRAM. Meeting AI demand could thus extend Micron's opportunity beyond AI memory. x.com
AI's physical buildout looks set to last to 2030 and beyond because financing, memory supply and hyperscaler spending still point to sustained demand. Nebius has $3.5B in financing, IREN $2.4B at 9% and SPCX $40B for GPU equipment. SK hynix expects shortages through at least 2030 and Samsung says HBM4 is sold out; memory companies are making money with no sign of slowing. Google expects 2027 capex to rise significantly. Pullbacks can happen; be cautious and buy quality. x.com
The memory sector is finished because China's CXMT has advanced a 4F² DRAM architecture that could greatly increase density. Micron, SanDisk and other memory-stock holders will bleed for months; China will lead AI moving forward, and those stocks are already paying the price. x.com
Memory supply looks constrained through at least 2030 because HBM, vertical HBM and vertical edge-inference memory require more wafers per bit than standard DRAM. Micron's roadmap shows that wafer pressure persisting as those products arrive; its illustrative product timing remains subject to change. x.com
