Cerebras priced its IPO at $185 on May 13, opened up roughly 68% on May 14, and gave back about 10% on Friday, May 16. [1] Six trading days have now passed without a clean second print. Nvidia's Q1 data-center revenue of $75.2B (+92% year-over-year) and the $91B Q2 guide arrived in the same window. [1] The wafer-scale pitch's two anchors — its own price and Nvidia's number — have not closed the gap between them.

The paper's Thursday brief on the day-five slide named the customer-concentration risk as the recurring objection. The S-1 disclosure is the file: 86% of 2025 revenue from MBZUAI (62%) and G42 (24%), with MBZUAI carrying 77.9% of accounts receivable. [1] Cloud margins collapsed to 16% in Q3 2025 from 61% prior — what one S-1 reader called a "hardware company with a margin-dilutive cloud bolt-on." The GAAP $237.8M FY25 net income was driven by non-cash G42 liability restructuring; operating loss was $145.86M.

A return to debut highs reopens the substitute-for-Nvidia argument for the quarter. A continued slide toward the IPO price closes it. Day six is closer to the second outcome than the first, without being either. The largest IPO of 2026 is now also the most ambiguous.

The Friday tape produced no analyst note above $185, no announced cap-table update from MBZUAI, and no second hyperscaler-class customer. The watch-item thresholds are still both above and below the current print.

-- THEO KAPLAN, San Francisco