The cumulative value of SpaceX, Neuralink, the Boring Company, and xAI has shot up 45% on private markets since last November, according to data provided to Fortune by secondary market trading platform Caplight . Musk's social media company X was not factored into the calculation because of a lack of interest from investors on the secondary market.

Secondary market investors have sent the collective valuation of four of Musk’s private entities up 45% since the US election.

After a slight rebound earlier this week, Tesla's TSLA stock is back to falling, keeping with its recent performance. Even U.S. President Donald Trump's purchase of one hasn’t done much to spark real momentum for the electric vehicle (EV) leader.

Investors are questioning the tech billionaire's involvement in Trump's administration, while shares in his Tesla electric-car company plummet.It was perhaps the clearest sign yet that Tesla CEO Elon Musk's political maneuvering has backfired.

Elon Musk and his Tesla company continue to be political talking points the further we get into President Donald Trump's second term. Late Night with Seth Meyers took "A Closer Look" at how that hasn't exactly been a good thing for the billionaire and his cars.