Cerebras beat, raised, and fell 17%: the tell is in the word "core"

Cerebras Systems beat Wall Street on adjusted earnings per share and raised its full-year outlook, then dropped more than 17% in extended trading ^[2][10][1]. The distance between the beat and the selloff sits inside the company's definition of revenue.

On a standard accounting basis, Cerebras reported $180 million for the quarter, about $14 million below the $194 million analysts expected ^[3][2]. The number the company led with was "core revenue" of $210 million, up 50% year over year and roughly $9 million ahead of a $201 million consensus ^[6][2]. So the same quarter produced a miss and a beat depending on which line you read, and the wedge between them is $30 million, about one sixth of reported revenue ^[1].

Two adjustments produce that wedge, according to the company's own description. Cerebras receives pass-through revenue that carries no margin, and subtracts it ^[4]. It also issues warrants to two customers, and because standard accounting subtracts the amortization of those warrants from revenue, Cerebras adds it back ^[5]. The first adjustment is defensible housekeeping: zero-margin resale flatters a top line without doing anything for the business. The second is the one to sit with. The add-back restores to revenue an amount that the accounting removes precisely because it was granted to two of the customers buying the product, which means the 50% growth rate is measured before the cost of the equity used to help secure it ^[5][6]. The gross margin guide of 38% to 40% for the current quarter is also a core gross margin, measured on the adjusted base ^[13].

Below the revenue line, the quarter was heavy. Cerebras posted a net loss of $450.5 million against a $309.5 million profit a year earlier, a swing of $760 million ^[7][3]. Stock compensation of $386.6 million accounts for most of it, which still leaves about $63.9 million of loss after excluding it ^[8][4].

The guidance raise is real but modest. Third-quarter core revenue of $214 million to $216 million implies about 2% to 3% sequential growth off a quarter that grew 50% year over year ^[9][6][5]. The full-year range moved to $880 million to $890 million from $855 million to $865 million, a midpoint increase of $25 million, or about 2.9% ^[10][6]. Chief Executive Andrew Feldman told analysts demand is going "through the roof" and that customers pay the asking price for the company's inference chips ^[11], and he expects core revenue to triple by the end of next fiscal year, which would put it near $2.65 billion ^[15][7].

Against that, backlog did not grow. It held at roughly $25 billion, which Feldman characterised as a sign of "extraordinary future demand" ^[14]. Flat backlog alongside $210 million of core revenue recognised means new bookings roughly matched what was worked off in the quarter ^[14][6][8]. At the midpoint of full-year guidance, that backlog is about 28 times annual core revenue, a ratio that only matters if it converts on a schedule investors can see ^[10][9].

Watch whether Cerebras discloses the pass-through and warrant-amortization components separately enough for outsiders to rebuild the number, and whether the two warrant customers are also the concentration in that $25 billion ^[5][14]. Watch the next backlog print. Cerebras listed in May at $185, raised $6.4 billion, traded as high as $309 and as low as $169, and closed at $262.06 the day before the report ^[16].