Today's biggest winners and losers in the stock market, a look at the notable movers:
On this episode of Stock Movers:

- Dell Technologies (DELL) shares jumped in extended trading after the company boosted its annual sales forecast by $25 billion due to surging demand for servers to run artificial intelligence tasks. Revenue in the fiscal year ending in January 2027 will be about $192 billion, including $74 billion from the sale of AI servers, which is up from an outlook in May of about $167 billion. The company projected fiscal-year earnings of $25.50 a share, compared with an average estimate of $19.10, and said its operating expenses are a mere 8% of sales, the lowest in Dell’s history.

- Palo Alto Networks (PANW) issued a profit outlook for the year that exceeded Wall Street’s expectations, fueled by corporate demand for stronger defenses against advancing artificial intelligence systems. The company expects revenue between $3.3 billion to $3.31 billion and sees adjusted profit of $4.16 to $4.19 a share, above Wall Street’s average estimate of $4.11. Palo Alto Networks acquired Console, which helps businesses build AI agents that automate internal IT tasks, and its CEO said the latest advancements in AI are elevating cybersecurity to the top of the CIO priority list.

- Credo Technology (CRDO) shares are down 4.8% in extended trading, suggesting investors see the communications equipment company’s second-quarter revenue forecast beat as not good enough after the stock’s 44% rally this year.