Stocks making the biggest moves midday: 3M, Northrop Grumman, Halliburton, CoreWeave and more

Check out the companies making headlines in midday trading: 3M — The manufacturing conglomerate jumped 8.1%…

Dow surges 500 points, topping 42,000 for the first time, a day after big Fed rate cut: Live updates

Traders work on the floor at the New York Stock Exchange. Brendan McDermid | Reuters Stocks…