Bullpen.News From Edwin Dorsey
Get Daily Recap Feedback

Latest News

Market capOver $50M
All Over $50MOver $300MOver $2BOver $10B
All Under $1BUnder $10BUnder $100BUnder $500B
SectorsAll
Filter by sector
Sunday, October 18, 2026· 10179 stock ideas· 217 writers·
18,689 views· 8,662 clicks

From X

@convequity

Convequity on X

High-bandwidth memory generally costs about 5x more per GB than conventional DRAM. As AI systems support longer context windows and more complex reasoning, memory demand is spreading into conventional DRAM and NAND. The mechanism is a tiered memory system. HBM holds active model weights and the context needed now. External DRAM holds a broader pool of context that the model can retrieve, while NAND-based SSDs store less frequently used context and model checkpoints. This keeps more context accessible at a lower cost, with a latency trade-off. Memory producers are operating at approximately 80% gross margins and 60%+ EBIT margins. The industry's through-cycle average gross margin has been 35-40%, and past peaks rarely exceeded 55-60%. Supply explains much of this. Samsung, SK Hynix and Micron invested heavily in capacity during the 2021-2022 boom. That capacity came online in 2023 and 2024, when smartphone, PC and non-AI server demand was weak. All three cut production, recorded operating losses and set conservative capex plans. Samsung cut DRAM output by approximately 15-20% in 2023. The capacity response as of mid-2026: 1. Samsung has targeted a roughly 50% increase in HBM production capacity this year. 2. SK Hynix has accelerated its HBM4 ramp through the M15X fab, while reportedly redirecting some planned HBM4 capacity toward DDR5. 3. $MU has accelerated DRAM and HBM output in Taiwan. Meaningful wafer starts from its new US and Singapore facilities are not expected until 2027 and beyond. These additions are weighted toward HBM and high-end server DRAM, not broad conventional memory capacity. They appear insufficient to close the gap in the near term, so the unusually high margins look likely to persist for several more quarters.

Investor Letters

All letters

Free Recaps of the best new stock ideas, delivered every morning.

Read past recaps

2026.42: Home At Last

Stratechery’s weekly bundle covers Apple HomeView and SpaceX’s cellular ambitions.

AAPL $5T
Stratechery by Ben Thompson – On the business, strategy, and impact of technology. 4 clicks
FINV · long

Finvolution Group

FinVolution, a China and ASEAN unsecured consumer lender, trades at 4x earnings and 0.5x book value.

FINV $711M
Value Investors Club

Is The Market Turning The Page?

CoreWeave’s debt and equity price action is framed as a wake-up call for investors amid a broader market discussion.

CRWV $34B
WHAT ARE WE DOING? “Contrarians At The Gate” 51 clicks

PesoRama: Research Flash

PesoRama will reach 54 JOi Dollar Plus stores by November after raising C$28.4 million, funding more than 50 additional Mexican store…

TBBB $6.8B
Atrium Research - Equity Research 7 clicks

Modine Deep Dive

Modine, soon Modexus Solutions, has a $4 billion hyperscaler cooling contract but must ramp factory output and restore margins as data…

MOD $9.2B
CV's Substack 18 clicks

Have a source we’re missing? Send your pick

Recent recaps

Latest recap

Saturday, October 17 31 stock ideas
  • SiriusXM: Dirt Cheap, Looming Catalysts, Short Squeeze Candidate Eagle Point Capital
  • Expert Call | Q3 2026 Optical Components Market Dynamics, Vendor Market Share, & 2027 Growth Outlook P Equity Research
Read the recap

All recaps

Publications we follow

Every publication on this site, hand-picked.

129 publications

Newsletters 107

YouTube 4

Blogs 17

Seeking Alpha 52 of 238

Nominate a publication

X accounts we follow

Every account on this site, hand-picked.

88 accounts
Nominate an account

Investor letters we follow

189 firms

Sectors

Ordered by how often our editor reaches for them.

Anything we’re missing?

Send us a pick