Headline: OpenAI's Billion-Dollar Deal + Cathie Wood Buying In — Yet CBRS Got Cut in Half. Who Do You Trust?

🧵 There's a new "stock guru" all over Twitter today hyping up $CBRS (Cerebras). It IPO'd barely over a month ago, billed as "the next NVDA" — and the stock has already been cut in half from its highs. So should we buy the dip? $Cerebras Systems(CBRS)$

1️⃣ How strong are the fundamentals, really?

Cerebras builds wafer-scale AI chips (WSE) — massive single-wafer chips that fuse compute and huge amounts of memory directly onto one die. Its specialty is high-speed, low-latency inference, which is the core architectural difference from NVDA's GPU approach.

In January 2026, OpenAI signed a multi-year deal worth over $10 billion with Cerebras, committing to deploy 750MW of Cerebras systems, rolling out in phases through 2028.

The latest big update: OpenAI's flagship model, GPT-5.6 Sol, will run on Cerebras hardware starting in July — and the two companies are reportedly co-designing future models together.

OpenAI's Head of Compute, Sachin Katti, put it roughly like this: Cerebras adds a dedicated low-latency inference solution to their platform — meaning faster responses, more natural interactions, and a stronger foundation for scaling real-time AI to more people.

Sounds compelling on the surface.

2️⃣ But hold on — Cathie Wood is buying too. Is that bullish or a red flag?

As everyone knows, Cathie Wood is AI's biggest true believer. ARK has been adding to its CBRS position almost every dip since IPO day, buying consistently week after week.

But her track record speaks for itself — she has a good eye for picking disruptive names, but a lot of her picks have struggled badly on price for years, and ARKK underperforming the broader market isn't exactly a secret. "She bought it" has never been the same thing as "it's safe."

The bigger issue: CBRS's market cap is still a fraction of NVDA's, yet its price-to-sales ratio is sky-high. Its very first earnings report as a public company got the stock cut in half, and margin guidance keeps getting revised lower. The tech may be impressive, but the moat gap versus NVDA remains enormous, and profitability is still far from proven.

3️⃣ My take

The story is real. The contracts are real. But turning a story into actual profit — and profit into a valuation that holds up — is still a long road. At this price level, I'm choosing caution. I'm not chasing the "next NVDA" narrative.

Not financial advice, just my own humble opinion. Open to respectful discussion 🙏