Cerebras Systems slumped over 9% in early trading Thursday after missing key estimates despite soaring cloud revenue, raising doubts about its AI chips' ability to challenge Nvidia. In its second earnings report as a public company, Cerebras offered a mixed picture as it increasingly derived revenue from cloud computing rather than its AI chips. The Sunnyvale, California-based company's cloud business roughly quadrupled to $126 million versus the year-ago quarter, but hardware sales, including AI chips, declined to $54.1 million from $70.3 million a year ago. Second-quarter adjusted gross margin fell to 40.6% from 46.5% in the prior quarter, while revenue missed analysts' estimates despite a higher annual outlook. The AI chips business had fueled a 41% rise in shares from the IPO price of $185. Analysts at Morgan Stanley said, "Execution remains the key debate given the scale and speed of the capacity build required to support the ramp." Citi and Mizuho cut their price targets slightly; the median target as per estimates compiled by LSEG implied an upside of 15% from the previous close. Separately, shares of Cisco Systems fell around 8% as its outlook fell short of lofty expectations tied to its rise as a beneficiary of the AI data center buildout. The stock has gained more than 60% this year. Cisco expects $7.5 billion in revenue from AI infrastructure orders from hyperscalers in fiscal