Stocks making the biggest moves midday: Frontier Group, JPMorgan, Apple, Stellantis, BlackRock and more / Stocks making the biggest moves premarket: Tesla, Stellantis, U.S. Steel, CarMax, Delta Air Lines and more / Stocks making the biggest moves premarket: Tesla, Coinbase, Stellantis, Palantir, Caterpillar and more / Stock Movers: Stellantis, Dollar Tree, AppLovin.com / Stellantis to pause production at Windsor plant, lay off 900 workers in Midwest / Stellantis Managers to Step Down in Post-Tavares Shakeup / Why Stellantis' chief executive Carlos Tavares was axed / Volkswagen layoffs, Ford and Stellantis woes, and our robot future: Autos news roundup / Stellantis Says Moving Quickly to Cut U.S. Inventories / Stellantis CEO Says Tax Hikes in France Will Hurt Investment