Premarket Movers | Cerebras Systems Plunges More Than 17%; Cisco Drops over 4%; CuriosityStream Soars 31%; Ondas Holdings Jumps 4%; LUNR Rises 1%

Cerebras Systems tumbled over 17%. Shares fell after Q2 revenue was $180.11 million versus $194.23 million expected, while full-year revenue and margin guidance were raised.

Cisco slid over 4%. The stock reversed despite an 18% Q4 revenue increase to $17.3 billion and FY2027 revenue guidance of $72.2 to $73.4 billion, as investors questioned AI order durability.

Ondas Holdings surged 4.5% in premarket trading, as the stock gained momentum ahead of its upcoming quarterly earnings release, fueled by a series of positive catalysts including a new analyst Buy rating, the completion of a major acquisition, and robust defense contract wins.

CuriosityStream shares rose 31% after it posted Q2 net income of USD 8.9 million, up 1,033%, as revenue rose 22% to USD 23.2 million. Gross margin widened 19.4 percentage points to 72.8%; licensing revenue climbed 48% to USD 14.1 million.

Intuitive Machines rose over 1%. The move followed a director's filing disclosing the sale of 267,448 shares for $4.33 million.