mark

T1 · high-signal investor

CTO of AMD, leading chip design using thousands of AI sub-agents; sees agentic AI driving 1:1 CPU:GPU ratio and transforming end-to-end workflows.

5 calls·5 names·80% bull·last heard 8 days ago·Y Combinator+3
track record

no scored calls yet — needs a stated position or a categorical verdict, with a matured window vs SPY

top calls

highest conviction · one per company
1sthigh conviction
$CORE-AUTOCore Autoposition

Former PyTorch maintainer co-founds Core Auto with OpenAI VP Research to automate kernel optimization

Core Auto is building KernelBot and KernelGuard platforms that use adversarial AI evaluation to generate and verify high-performance GPU kernels, addressing the critical bottleneck of kernel engineering productivity.

2ndhigh conviction
$NBISNebiusposition

Nebius pursues diversified 20-data-center portfolio to avoid single-project bottlenecks

Nebius's multi-threaded data center portfolio across 20 sites mitigates the local regulatory, power and community risks that stall single-project competitors, while building from scratch lets them adopt latest memory, optics and cooling tech at every layer.

3rdhigh conviction
$AMDAdvanced Micro Devicesposition

AMD sees CPU:GPU ratio approaching 1:1 for agentic AI workloads

Agentic AI is transforming work end-to-end, requiring both CPUs and GPUs in near 1:1 ratio; AMD is already using thousands of sub-agents for chip design, accelerating next-gen silicon development.

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5 total
$CORE-AUTO
Core Auto
HIGHmark·Y Combinator·13 days ago· position
Former PyTorch maintainer co-founds Core Auto with OpenAI VP Research to automate kernel optimization
Core Auto is building KernelBot and KernelGuard platforms that use adversarial AI evaluation to generate and verify high-performance GPU kernels, addressing the critical bottleneck of kernel engineering productivity.
"co-founding uh core automation with uh OpenAI VP research Jerry Torque"
31:29
$AAPL
···
Apple
MEDmark·Bloomberg Tech·8 days ago
Apple's upgrade program shifts to subscription model creating recurring revenue flywheel
Apple is converting device sales to a subscription model via its upgrade program, enabling recurring payments, secondary market refurbishment, and parts harvesting — a shift Wall Street has demanded for half a decade that could create far more revenue and profit long-term, though supply chain constraints currently delay fulfillment.
"THE FACT OF THE MATTER IS THAT OVER TIME YOU WILL SEE A CHANGEOVER FROM STICKER PRICES. IT HAS BEEN EXTREMELY SUCCESSFUL WORTH FOR CARRIERS INTERNATIONALLY. MAKING IT A SUBSCRIPTI…"
19:33
$NUA
NUA
MEDmark·itnig·18 days ago· position
NUA AI fitness coach shows strong B2C metrics (35% free-to-paid, 35% 17-mo retention) but consumer volatility concerns
NUA achieves impressive early metrics (€200k ARR, 1k paid users, €15 CAC, 33% conversion, 35% month-17 retention) with proactive AI coach + wearables integration; however hosts warn B2C consumer subscription apps are 'miracles' when they work and uninvestable when they don't, citing Cal AI exit as benchmark.
"Tenemos una conversión de free try al apago del 33% que venimos subiendo progresivamente... retenciones que tenemos es muchísima mayor a los benchmark... el mes 1 es el 88%, vamos…"
116:00
$NBIS
···
Nebius
HIGHmark·Sourcery VC·23 days ago· position
Nebius pursues diversified 20-data-center portfolio to avoid single-project bottlenecks
Nebius's multi-threaded data center portfolio across 20 sites mitigates the local regulatory, power and community risks that stall single-project competitors, while building from scratch lets them adopt latest memory, optics and cooling tech at every layer.
"The biggest problem with the buildout of data centers is something that Nebius is not experiencing, which is that a lot of focus are a lot of people are focused on single individu…"
26:11
$AMD
···
Advanced Micro Devices
HIGHmark·Sourcery VC·23 days ago· position
AMD sees CPU:GPU ratio approaching 1:1 for agentic AI workloads
Agentic AI is transforming work end-to-end, requiring both CPUs and GPUs in near 1:1 ratio; AMD is already using thousands of sub-agents for chip design, accelerating next-gen silicon development.
"Hottest take is people don't even understand how transformational Agentic AI is. It's just transforming how work gets done. You know just entire end to end workflows are being rei…"
15:07