Cerebras Beats on Revenue, Sells Off on a Margin Reset to 36-38%

The Margin Reset

Cerebras posted its first earnings since its May IPO after the close on June 23, and on the top line it was a real beat: core revenue of $191.3 million, up 92% year over year, and total GAAP revenue of $193.4 million against a Street estimate near $181 million. None of that mattered. The story was the guide. Management told investors to expect core gross margin of 36-38% in Q2, down from 47% in Q1, with full-year core gross margin settling at just 38-41%. CFO Bob Komin pinned the compression on the cost of renting third-party cloud capacity and pointed to a long-term 60% target — but a company guiding margins down ten points the quarter after going public doesn't get the benefit of the long term.

A Beat the Market Won't Pay For

Context matters here. Cerebras priced its IPO at $185 in May and opened at $350, so the float was already sitting on a round-trip before this print. The reaction — roughly 10% lower in extended trading and down about 14% pre-market — is the market repricing the margin profile, not the demand. Demand isn't the problem: the more-than-$20 billion, 750MW OpenAI deployment and the new AWS inference partnership are real backlog. The problem is what that backlog costs to deliver. Cerebras builds wafer-scale chips that are hard to manufacture and structurally lower-margin, and a 38-41% full-year gross margin makes it the lowest-margin name in AI compute — against Nvidia in the mid-70s and AMD in the mid-50s — even as it grows the fastest. That's a hard combination to underwrite at a post-IPO multiple.

Where the Perp Is Pricing It

The HIP-3 perp is the cleanest real-time read on this, because the cash market closed at $226.72 *before* earnings even dropped. At $190.6, CBRS is roughly 16% below that close and down 18.93% over 19 hours — the perp is absorbing the extended-hours and overnight repricing that the regular session won't fully show until the next open. It also resolves the setup we flagged the day before: CBRS had de-risked into a binary event, slipping under Morgan Stanley's $250 target on no fresh news. The event hit, the guide disappointed, and a thin post-IPO float did the rest — on $62.5 million of 24h volume in this market alone.