Stocks making the biggest moves midday: Costco, Tesla, Broadcom, Gap, Samsara and more found 2025 › Mar › 07 (Fri) @ 18:51 UTC a story from CNBC › Top News Costco ■■ Tesla ■■ Broadcom ■■■ Gap ■■ Samsara ■■ preview These are the stocks posting the largest moves in midday trading.