Tesla Inc. is once again worth $1 trillion, after Chief Executive Elon Musk said he is about done selling shares.

Tesla (TSLA) shares roared 7.5% higher to $1,008.87 Wednesday, pushing share prices higher than $1,000 and the electric-car company's market capitalization -- the value of all shares -- past $1 trillion. After first topping that plateau in October, Tesla fell lower than that mark on Dec. 13, part of a slide that put the volatile stock into a "bear market" for the third time this year. The shares will remain in a bear market until they move 20% higher than their most recent low, which would mean a share price of $1,079.93, according to Dow Jones Market Data.