Shares of Lithium Americas Corp. (LAC) tumbled 5.40% in pre-market trading on Thursday, as investors reacted to a significant downgrade from JPMorgan. The move comes as a blow to the lithium producer, which has been navigating a challenging market environment.

JPMorgan, a major Wall Street firm, lowered its rating on Lithium Americas from Neutral to Underweight, signaling a more pessimistic outlook on the company's prospects. Along with the downgrade, the investment bank set a new price target of $5 for LAC shares, suggesting potential further downside from current levels.

This downgrade could raise concerns among investors about Lithium Americas' future performance and its position in the competitive lithium market. As the electric vehicle industry continues to evolve, the demand dynamics for lithium producers remain a key focus for analysts and investors alike. The pre-market plunge indicates that market participants are reassessing their expectations for LAC in light of JPMorgan's revised stance.