The valuation gap favors SK hynix and Samsung over Corning, Seagate and Western Digital. Companies trading at 20x are still called cheap while the memory makers trade at 2x; Corning is not cheap on a $4 run rate even with growth, and neither are Seagate or Western Digital. The gap should narrow as memory rises while HDD stalls. x.com  x.com 

Seagate holds a technology lead that rarely comes along in commodity hardware. Its HAMR drives are already qualified and in production with hyperscalers, while Western Digital's competing HAMR platform isn't expected to ramp until 2027. x.com 

Western Digital benefits from HDDs' low storage cost and growing cloud demand, with higher NAND prices adding pricing power. Nearline bit demand normally grows 20-25% with some deflation, while AI data growth now exceeds 30%; HDD costs ~$0.02-$0.03/GB versus ~$0.25 for NAND. Before AI, the consolidated, ~95% cloud-exposed market looked worth a low-to-mid-teens multiple of normalized EPS. Entry barriers are extremely high, but irrational competition among the three players is a risk. x.com  x.com  … Show more

AI data and content creation could lift Seagate's and Western Digital's cross-cycle earnings even if supply catches up and pressures prices and margins. Western Digital reported hyperscaler demand signals through 2030/31, making 2013-2024 normalized earnings a poor baseline. Still not a huge fan of their stocks given their large premium to memory makers and Toshiba's production ramp. x.com  x.com 

Seagate is the better bet than Western Digital because, where the industry is heading, Seagate has the superior product and Western Digital is late to the game. x.com 

Western Digital may offer the best chance to get on board, because in a market this concentrated, duopoly economics don't care who gets there first. It just posted the best quarter in its history, though Seagate's HAMR drives are already in hyperscale racks while Western Digital's HAMR ramp starts in 2027. x.com 

Toshiba's reported plan to expand hard-drive output makes Seagate's and Western Digital's pricing after 2027 much less certain. Their bull case leaned on all three HDD makers holding unit output flat; per Nikkei Asia, Toshiba will spend about ¥60B to double AI data-center HDD capacity by March 2028 and lift its share from just over 10% to 30%. Seagate's 2027 pricing is already contracted, so this hits the multiple rather than next year's numbers. Toshiba has not confirmed the report. x.com  x.com  … Show more

Seagate's gross margin jump to 57.8% from 52.7% shows pricing power in a supply-constrained hard-drive market. AI data needs storage, hyperscalers seek capacity, and HAMR packs more terabytes into existing factories; roughly 90% of big-cloud data sits on hard drives. Sales reached $4.2B and next-quarter guidance of $4.8B beats the Street's $4.53B. This cycle looks to be accelerating rather than peaking. Overweight, $1,050 target. x.com  x.com 

Western Digital is about to play catch-up with the memory space. It has lagged as Micron, Sandisk, Samsung and SK Hynix ride NAND, DRAM and HBM price spikes, because it rides capacity storage for AI data lakes, which is real demand but a different, slower-moving market. x.com 

SK hynix looks like the weakest storage short because it has fallen behind. More negative news may follow beyond HBM4; its LPDDR6 is reportedly well behind Samsung's. x.com  x.com