Tesla shares continued to fall on Friday as investors appeared to take profits from the electric car maker’s strong post-election rally.

The company’s shares were down 5% in U.S. premarket trading as of about 6:30 a.m. ET, extending losses seen earlier in the week. Tesla shares plunged 8% on Wednesday, marking their worst day since donald trump November presidential election victory.

Trump’s victory sent Tesla shares surging as investors increased bets that the electric car company would benefit from Chief Executive Elon Musk’s close relationship with the president-elect.

Musk named by Trump as newly formed co-leader government efficiency departmentalso known as “DOGE”. The acronym for the proposed Presidential Advisory Council shares its name with the internet meme that inspired the so-called “memecoin” cryptocurrency “Dogecoin.”

Dogecoin price rise briefly After the body was created.

Musk was a major supporter of Trump during the Republican campaign, spending $277 million primarily on his campaign, according to Federal Election Commission filings. Musk is The world’s richest manAccording to Forbes, his net worth is $439.4 billion.

Last month, Bloomberg News reported that Trump’s transition team was planning to pursue a federal framework to regulate self-driving cars.

Tesla and Trump’s transition team did not immediately respond to CNBC’s request for comment on the report.

If true, the move would give Musk’s electric car company a major boost. Tesla is betting its future on the idea of ​​launching a massive fleet of self-driving cars, a “robo-taxi” service. At the company’s “We Robot” event in October, Musk Unveiling the company’s Cybercab self-driving concept car.

Tesla has Musk’s promise to deliver truly self-driving cars has yet to be fulfilled. Tesla’s Autopilot and paid “Full Self-Driving” services still require someone behind the wheel to oversee the system’s behavior and take over if needed.

In other Tesla-related news, data released by the European Automobile Manufacturers Association on Thursday showed that Tesla vehicle sales fell by 40.9% in November, exceeding the overall 9.5% decline in EU pure electric vehicle (BEV) sales.