Bullpen.News From Edwin Dorsey
Get Daily Recap Feedback

Monday, October 19, 2026

Back to today

From X

@StableBread 6 clicks

Fajasy on X

I first wrote up an AI data center company that rents out $NVDA GPUs to AI startup companies on April 15, 2026, when it still traded as a SPAC at $10.70/share, just above its ~$10.60 trust value. The merger was a success, and the stock peaked at $39.20/share on June 1st. Now it trades below its SPAC price. That company is Boost Run $BRUN, which has fallen to $8.89/share, down 77.3% from its peak, even after it announced its largest disclosed contract on October 6 (worth $525.6M). The three larger listed GPU clouds have fallen from their 2026 highs as well, through the October 16 close: → CoreWeave $CRWV: Down 55.5% to $61.39/share. → $IREN: Down 60.2% to $26.99/share. → Nebius $NBIS: Down 42.3% to $165.47/share. So $BRUN fell with the group, but further than all three. I’d blame the drop from $39.20 on two causes that have nothing to do with $BRUN’s core operations: (1) higher rates and borrowing costs, and (2) $BRUN’s float growing ~3.1x, which was expected once its lockup ended and its warrants were called. Yet the business carries less risk than it did as a SPAC: → Contracts: $1.61B with disclosed terms and TCV over $2.6B, including $1.43B signed since my April write-up. → Customers: Thinking Machines Lab (the AI startup founded by former OpenAI CTO Mira Murati) and Cohere make up 61.9% of the $1.61B on three- to five-year terms, after three customers made up 75.9% of 2025 revenue, led by RunPod, a GPU cloud platform, at 44.5%. → Year-end target: If Thinking Machines’ GPUs are fully running by December 31 and the June order starts on November 30, the five disclosed contracts running by year-end cover $300.6M (75.1%) of the $400M ARR target. → Merger: Closed on May 8, 2026, with zero redemptions. → Balance sheet: The merger proceeds paid off its short-term bridge loans, the going-concern language is gone, and pro forma cash is $191.8M, up from the $108M I used in my June 3 update, right after the merger. But $BRUN still has to get the GPUs bought, financed, and running by December 31: → To reach the $1.0-1.2B of GPU spending management expects for 2026, $BRUN has to deploy $663-863M of GPU servers in H2 2026, 2.3-3.0x its cash and contracted prepayments. → CFO Erik Guckel said on the Q2 call that $BRUN is working on new ways to finance the build, but I found no new facility, lender, or term sheet in its filings or press releases from August 14 to October 16. → $BRUN’s named customers are private AI startups without investment-grade ratings, so its contracts are harder to borrow against. → If lessors funded 70% of the H2 2026 build instead of 79.5% (as in H1 2026), $BRUN would need $199-259M of its own cash for the build, more than its $191.8M of pro forma cash. → Both 10-Qs came late, after notices of late filing on May 26 and August 14, and $BRUN still reports three material weaknesses, the most serious kind of gap in a company’s financial reporting controls. → Founder and CEO Andrew Karos controls 87% of the vote. At $8.89/share, $BRUN’s EV is $989.7M. That’s 2.5x its $400M target for year-end ARR, down from 5.4x at the $22.93 price in my August 16 update. At 2.5x, $BRUN trades below all three peers, including $IREN at 3.2x. So did the thesis break, or just the stock? That’s what I answer in my new ~5k-word update on $BRUN, including my bear, base, and bull cases (Excel model included).
@convequity

Convequity on X

We think the foundry business at Intel ($INTC) may be closer than the market assumes. In our view, the key question is whether outside customers can design and produce chips with Intel. That is hard because Intel built its design rules, software and processes for its own teams. Two developments help. 1) Intel's 12nm partnership with $UMC brings experience serving external customers and a more customer-friendly design kit. 2) Musk has said Terafab plans to use Intel's 14A process, with Tesla and SpaceX building and running the fabs themselves. We see that as an important external test of 14A. Intel still has to prove yields, volume and schedules, and Terafab's commercial terms remain unclear. We continue to hold our Intel position and remain bullish, but not enough to add to it for now.
@KEDM_COM 11 clicks

KEDM.com on X

“There's only 10 ways to do fraud.” @hkuppy and @herbgreenberg on why the same patterns keep showing up, and the thin line between a visionary and a fraud. Carvana $CVNA is a good example. A few years ago, it looked like the company might run out of money, with Herb joking that its car vending machines could become trampoline parks or indoor skydiving towers. Instead, the stock recovered and access to capital reopened. Being right about a questionable business doesn’t help much if it can keep financing itself.
@convequity 5 clicks

Convequity on X

Nvidia ($NVDA) faces a major issue: most AI compute is moving to inference, where its CUDA moat protects less. CUDA's programming flexibility is essential for training, which is complex and changes rapidly. Inference runs a trained model with fixed weights, and we think inference chips are easier to build than training chips. The mix is shifting. Post-training RL, reasoning tokens and final replies are all forms of inference. On our view, pre-training could fall below 20% of compute in the future. In February, Cursor said the compute used to post-train its Composer 1.5 model surpassed the compute used to pre-train the base model. At Convequity we think CUDA's depth now protects a shrinking share of the workload, and we expect that to continue. Deeper dive available at Convequity.
@aleabitoreddit

Serenity on X

Feels like the public interpretation is all wrong… I’m pretty sure $MSFT backing out on NScale deal is bullish for Neoclouds like $NBIS or even $IREN with energized capacity with Microsoft? Pretend Microsoft just ate a bunch of Chipotle burittos: - They order toilet paper delivery scheduled Q1 2027 - NScale says: sorry 3-4+ year delay of the toilet paper (into 2030’s) because of UK grid constraints - Microsoft still urgently needs toilet paper so they will get it elsewhere The cancellation does send warnings about what happens if a Neocloud can’t execute on contracted demand. But that just makes the other toilet paper sellers more valuable since Microsoft will go elsewhere for supply.
@aleabitoreddit

Serenity on X

I don't think it's unclear, but I do think segments outside of photonics are noise for what drives valuations (which I don't think management understood). Next earnings, $SIVE should use laser capacity revenue ceiling from foundry allocations + existing fabs as the core metric alongside customer qualification diversity. Not defending what the definition of a revenue pipeline is and using current term cellular AllSpace contract revenue as an example. Potential volume from $GFS probably dwarfs revenue from other segments. Talking about existing qualification cycles is enough since investors how they convert given 1.6T/NPO/CPO transitions are coming up.

Investor Letters

All letters

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. 3 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

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.