Opening Performance: Shares Open at $350 vs. $185 IPO Price, Triggering Circuit Breaker AI chip startup Cerebras Systems began trading on the Nasdaq Global Select Market on May 14 under the ticker symbol CBRS. The stock opened at $350, representing a significant 89.2% surge from its initial public offering price of $185. The share price climbed further to $385 shortly after opening, marking an increase of 108% and triggering a circuit breaker mechanism. At its peak, the company's market capitalization briefly exceeded $80 billion. The IPO involved the issuance of 30 million shares, raising $5.55 billion. This makes it the largest IPO in the United States so far in 2026 and the biggest for a U.S. technology company since Uber's listing in 2019. If the underwriters exercise their option to purchase an additional 4.5 million shares, the total funds raised could reach $6.38 billion. Pricing Dynamics: Demand Exceeds Supply by Over 20x, Multiple Price Range Revisions Due to investor demand exceeding the available shares by more than 20 times, Cerebras's proposed price range was revised upward multiple times. The initial price range was set between $115 and $125 per share. It was subsequently raised to a range of $150 to $160, with the final IPO price set at $185, surpassing the upper limit of the revised range. Based on a fully diluted share count, this pricing values the company at approximately $56.43 billion. Founded in 2015, the company develops chips for large AI model computations. Its core technology is the wafer-scale engine, which fabricates an entire silicon wafer into a single processor containing 4 trillion transistors and 900,000 cores. The company positions its product as an alternative to GPUs for AI inference workloads. Financial Performance: Revenue Grows 76%, Company Turns Profitable Financial data shows Cerebras generated revenue of $510 million in 2025, a 76% increase year-over-year. The company reported a net profit of $88 million, a substantial turnaround from a net loss of $481.6 million the previous year. In an interview with CNBC, CEO Andrew Feldman stated the company had reached a "stage of maturity" and that going public now was "the right way to raise money for growth." AI Stock Momentum Continues Since the beginning of the year, chip stocks like Intel and AMD have seen triple-digit percentage gains. Market demand for AI infrastructure remains robust. As the largest "pure-play AI" IPO on Wall Street to date, Cerebras's market debut has drawn significant attention.