Tesla shares swung sharply this week after missing first-quarter delivery estimates, according to Barron's. They briefly surged on a report that Elon Musk might step away from DOGE, then fell again after Trump’s new tariff plan. First-quarter deliveries are down 13% year-over-year, marking its worst quarterly drop ever and missing consensus by over 10%. Analysts said the Model Y upgrade affected production and sales, with some warning that Musk’s political activity may be hurting demand. While price targets were lowered, others still expect a rebound in the second quarter. Shares were up on Wednesday's closing but declined in Thursday’s premarket trading.