Cerebras raises $5.5B, then stock pops $108%, in the first huge tech IPO of 2026

Cerebras Systems completed its IPO in 2026, raising $5.5B with stock surging 108% on debut — the first major tech IPO of the year. Cerebras's wafer-scale chip architecture offers dramatically higher on-chip memory bandwidth than GPU clusters, making this a significant milestone for AI hardware infrastructure investment.