Today's Morning Movers and Top Ratings: DELL, MRVL, COST, ZS and More

$Gap Inc (GPS.US)$ stock surged 23% as the clothing retailer increased its full-year sales outlook, signaling that its turnaround efforts may be gaining traction.

$Zscaler (ZS.US)$ stock climbed 15% following the cloud security company's report of robust quarterly earnings and an upward revision of its guidance.

$Ambarella (AMBA.US)$ stock soared 20% after the chip designer posted a smaller-than-expected quarterly loss and gave a positive revenue forecast for the next quarter.

$Dell Technologies (DELL.US)$ stock tumbled 15% due to a disappointing earnings forecast for the current quarter and concerns that increased server investments for AI workloads could impact annual margins.

$Nordstrom (JWN.US)$ stock dropped 7.5% after the retailer reported a first-quarter loss that was larger than anticipated, despite revenues exceeding expectations.

$MongoDB (MDB.US)$ stock plummeted 24% after the database software company provided weaker-than-expected guidance for the quarter and lowered its full-year outlook.

$Trump Media & Technology (DJT.US)$ Group stock dipped 1.6% following a New York jury's guilty verdict for Donald Trump in a high-profile case, impacting the company he majorly owns.

$Marvell Technology (MRVL.US)$ stock declined 5.7% after the semiconductor producer reported first-quarter revenues that fell short of expectations, attributed to reduced spending by wireless carriers and enterprise clients.

$Costco (COST.US)$ stock edged down 0.5% as the company's decision to maintain membership fees, despite beating profit, revenue, and same-store sales forecasts, failed to impress investors.

$Flutter Entertainment (FLUT.US)$ stock decreased 3% after the gambling company announced the resignation of its group finance chief, Paul Edgecliffe-Johnson.