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
Thursday, October 22, 2026· 11128 stock ideas· 219 writers·
23,450 views· 11,144 clicks

From X

@convequity

Convequity on X

$TSEM + $SOI: positioned on both sides of the biggest shift in AI datacenter interconnect — and Google's new TPUv8i just supercharged the story. Leg 1 — Smarter optics, much bigger chips. Next-gen optical links ("coherent-lite") encode data far more densely than today's IMDD links. But the sophistication has a physical cost: the photonic chip needs roughly 2–2.5x more silicon area per port, because it packs in multiple modulators, splitters, and detectors where today's simpler links need one of each. Factor in that bigger dies yield worse, and you need ~3–4x the wafer starts per port. More area × more volume × worse yield = several-fold growth in SiPh wafer demand over the cycle. Leg 2 — The switch itself goes photonic. TPUv8i connects its chips through an optical circuit switch (OCS) built from silicon photonics — a genuinely new thing. $GOOGL's old scale-out OCS used MEMS mirrors: zero SiPh content. The new one puts a very large photonic die (300–450mm², heading toward 500–800mm² — near the reticle limit) in every pod. That's a brand-new ~10–20% layer of demand on top of the transceiver story, and it scales faster than linearly as switch radix grows from 64×64 to 128×128. The elegant part: Leg 2 forces Leg 1. The optical switch loses 5–10dB of light — 70–90% of the signal is gone by the time it exits. Today's IMDD transceivers can't read a signal that weak; coherent ones can. So every transceiver plugged into the switch fabric has no choice but to go coherent — and coherent means the 2–2.5x bigger chips from Leg 1. Google's switch decision doesn't just create its own SiPh demand; it automatically triggers the transceiver upgrade too. Tower has manufacturing flows for both legs: high-speed modulator + Ge flows for transceiver PICs, AND mature passive flows for the huge fabric dies. Soitec supplies the photonics-SOI wafers upstream either way — it wins regardless of which foundry takes the socket. One more kicker: Celero, the Alphabet-backed startup tipped for Google's coherent DSP socket, has no fab of its own — its companion photonic chip has to land somewhere, and an open specialty foundry is the obvious somewhere. Risks: coherent modulators migrating to InP/TFLN would leak the PIC leg out of silicon photonics; Marvell verticalizing into its own photonics partially bypasses the open-foundry path.

Investor Letters

All letters

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

Read past recaps

MYR Group q3’26 Earnings Preview

MYR Group’s Q3 2026 preview cites data-center and power transmission demand, with long-term service agreements supporting margin growth and…

MYRG $4.4B
Monte Independent Investment Research 4 clicks

Mosaic, Part One: The Story

Mosaic’s history traces the 2004 Cargill-IMC merger and the phosphate and potash mines that shaped NYSE: MOS.

MOS $5.7B
Latticework by MOI Global 7 clicks

Mosaic, Part Two: The Deep Dive

Mosaic, NYSE: MOS, is the subject of a second audio program for professional investors analyzing fertilizer producers.

MOS $5.7B
Latticework by MOI Global 4 clicks

Unicycive (UNCY):

Unicycive’s oxylanthanum carbonate NDA earned a March 25, 2027 PDUFA date after two manufacturing-related rejections, with no FDA clinical…

UNCY $110M
Triple S Special Situations Investing 3 clicks

Tesla Q3 FY12/26 Earnings Analysis

Tesla’s Q3 revenue was flat at $28.0 billion, while operating income fell 56% as R&D spending on AI rose 69%; SpaceX merger discussions are…

TSLA $1.4T
Cestrian Capital Research 3 clicks

Meta Earnings Update: Q3 2026

Meta’s Q3 revenue rose 26% to $64.6 billion, but $34.9 billion in AI infrastructure spending drove free cash flow negative as it created…

META $1.8T
SixSigmaCapital: Navigating the Financial Markets 3 clicks

Meta: 3Q26 Business Update

Meta’s Family of Apps revenue grew 26% as Muse reached 10 million users, testing AI-agent commerce while Amazon restricts access and…

META $1.8T
Speedwell Memos 2 clicks

Have a source we’re missing? Send your pick

Recent recaps

Latest recap

Wednesday, October 21 54 stock ideas
  • Why I sold OB pick for 26 SVM The Oak Bloke
  • CoreWeave: It’s Not Dying, Not Anytime Soon Capitalist Letters
Read the recap

All recaps

Publications we follow

Every publication on this site, hand-picked.

129 publications

Newsletters 109

YouTube 4

Blogs 15

Seeking Alpha 54 of 247

Nominate a publication

X accounts we follow

Every account on this site, hand-picked.

90 accounts
Nominate an account

Investor letters we follow

190 firms

Sectors

Ordered by how often our editor reaches for them.

Anything we’re missing?

Send us a pick