Stock futures are mixed in early trading on Thursday after cooler CPI data sent U.S. stock indices to all-time record highs.

Here are some of Thursday's biggest stock movers:

Biggest stock gainers

• Cisco Systems ($Cisco Systems, Inc. CSCO$ ) shares rose 4.3% after the networking giant reported solid FQ3 results and an upbeat outlook. The company expects to earn between $0.84 and $0.86 per adjusted share in FQ4, surpassing the consensus estimate of $0.84, with sales projected to be between $13.4B and $13.6B, compared to the consensus of $13.54B. Additionally, Cisco anticipates adjusted gross margins for the period to be between 66.5% and 67.5%. For FY2024, Cisco has raised its revenue guidance to a range of $53.6B to $53.8B, up from the previous range of $51.5B to $52.5B and exceeding the consensus estimate of $53.63B.
• Chubb Limited ($Chubb Limited CB$ ) stock soared more than 9.7% following news that Berkshire Hathaway ($Berkshire Hathaway Inc. Class A BRK.A$ $Berkshire Hathaway Inc. Class B BRK.B$ ) disclosed a stake of 25.9M shares in the insurer, which was valued at $6.7B at the end of Q1 2024.
• Shares of AST SpaceMobile ($AST SPACEMOBILE INC ASTS$ ) jumped over 38% following the announcement of a commercial agreement with AT&T ($AT&T Inc. T$ ) to bring its space-based broadband network direct to everyday cell phones, with the partnership set to last until 2030. AST SpaceMobile (ASTS) plans to launch its first commercial satellites into low-earth orbit from Cape Canaveral this summer.

Biggest stock losers

• GameStop ($GameStop Corp. Class A GME$ ) and other meme stocks extended their declines on Thursday, retracing from the sharp gains earlier in the week. The meme mania was fueled by a tweet from Keith Gill, also known as Roaring Kitty, a retail investor credited with igniting the meme-stock craze in 2021. GameStop (GME) plunged 15%, while AMC Entertainment Holdings ($AMC Entertainment Holdings, Inc. Class A AMC$ ) lost 12% and BlackBerry Limited ($BlackBerry Limited BB$ ) dropped approximately 4.6%.