Tesla stock plunged on Monday with its largest single-day decline in several years amid a broad-based market sell-off amid concerns about a potential recession and uncertainty over President Donald Trump's tariff plans. Tesla shares declined 15.4% during Monday's trading session amid weakness in the electric vehicle (EV) industry. That was the largest single-day percentage decline since September 2020, when it fell more than 21% in a single day.In 2025 so far, Tesla stock is down 41.4% year-to-date, includi ...