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
Tuesday, October 20, 2026· 10437 stock ideas· 220 writers·
20,448 views· 9,460 clicks

Group 1 Automotive: The Debt Stress Test

Group 1 Automotive’s $1.25 billion Atlanta borrowing lifts net corporate debt to about $4.4 billion; a 2009-style downturn leaves it near bank covenants with $750 million maturing.

GPI $2.9B
Cannibal Stocks 2 clicks

From X

@convequity 1 click

Convequity on X

An optical circuit switch never converts the light. A conventional switch takes light in, turns it into electricity, makes a decision, turns it back into light. An optical circuit switch steers the beam. The principle in the note: rather than optimizing a difficult conversion step, remove it. Three constraints follow. 1. Power. A 100-terabit-class silicon photonics OCS consumes only 200–300 W, against roughly 6,000 W for an equivalent electrical switch. More than a 20× advantage. The 200–300 W figure is measured with the amplifiers already in place. 2. Rate. The switch is optically transparent, so the same module supports 800G, 1.6T, 2.4T and 3.2T. It does not have to be replaced each time the transceivers get faster. 3. Insertion loss. Silicon photonics currently loses more light in transit than the MEMS alternative, so semiconductor optical amplifiers are added to restore optical power. That adds system complexity. Google buys these switches from optics makers, not from the usual switch-chip vendors. Calient, Lumentum ($LITE) and Coherent ($COHR) supply Google ($GOOGL).
@convequity 4 clicks

Convequity on X

Natural gas itself has not been the scarce input. The turbines have. Once AI data-centre load outran what the grid, renewables, and near-term nuclear could cover on a GW scale, gas became the compromise — and turbine demand surged from 2024–2025. Lead times still run roughly three to five years, with manufacturers already sold out into 2029–2031. That puts the first large batch of those ordered turbines on a delivery horizon closer to the next twelve months. As they arrive, and as behind-the-meter projects sit at or near gas fields, the incremental gas draw is likely to show up in a concentrated window, not a smooth ramp. Storage has grown only modestly while demand has risen, and drilling and pipeline buildout have stayed slow. New customers do not want to wait another three to four years for later turbine slots, so they are also exploring workarounds: reciprocating engines — internal combustion units closer to older, smaller airplane engines than to jets. The tech is not high-end blade metallurgy, so these generators can be mass-produced. They still prefer natural gas (more energy at the same density, and cleaner). Slightly less efficient than a turbine, but available sooner — and still burning gas. Either path concentrates the fuel draw. $AR, $EXE and $CRK are the producers sitting on that timing gap.

Investor Letters

All letters

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

Read past recaps

AppLovin Deep Dive

AppLovin rebuilt its ad model with AXON 2.0, lifting LTM revenue to about $7 billion and margins to 77% as Unity competition threatens ad…

APP $88BU $19B
Speedwell Memos 22 clicks

LXS.DE: a 2028 sale it can force

Lanxess can force Advent to buy at least half its Envalior stake in April 2028, potentially raising about €745 million to reduce net debt.

LPTH $525M
Trade Ideas Flow 12 clicks

Build-A-Bear: A Narrower Path

Build-A-Bear's push into prestuffed toys and broader retail distribution tests brand stretchability, but recent results warrant caution.

BBW $317M
TSOH Investment Research 8 clicks
SKIN · long

Skinhealth Systems INC

SkinHealth Systems owns a dominant professional skincare consumables franchise but trades at roughly $115 million market cap and $255…

SKIN $73M
Value Investors Club

Do You Trust Apple?

Apple’s HomeView strategy ties Siri, privacy and smart-home control to consumer trust in its vision for the home.

AAPL $5T
Stratechery by Ben Thompson – On the business, strategy, and impact of technology. 2 clicks

Semtech Analyst Day Review

Semtech raised Q3 guidance and targets $3.2 billion of fiscal 2030 revenue, excluding upside from its AI data-center optical and copper…

SMTC $16B
CV's Substack 13 clicks

Have a source we’re missing? Send your pick

Recent recaps

Latest recap

Monday, October 19 52 stock ideas
  • 40 Stock Pitches (12th-18th October) 🖨️ Capital Employed
  • The Monday Morning Briefing: Meta, Tesla, Netflix, P&G on Deck Latticework by MOI Global
Read the recap

All recaps

Publications we follow

Every publication on this site, hand-picked.

130 publications

Newsletters 108

YouTube 4

Blogs 17

Seeking Alpha 52 of 241

Nominate a publication

X accounts we follow

Every account on this site, hand-picked.

90 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