Tesla simply unveiled a less expensive Mannequin Y and Mannequin 3. Why the inventory is falling.

Tesla Inc. has unveiled cheaper, pared-down versions of its two best-selling electric vehicles, in a bid to re-energize sales amid an expected slump after the end of U.S. tax credits for EV buyers.

The move did not sit well on Wall Street, however, with Tesla’s stock

TSLA accelerating losses in the final hour of trading Tuesday, closing down 4.5%.