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Every time Tesla shares decline $2.43, Elon Musk loses another billion dollars

The world’s richest man has lost $100 billion since December.

J. Edward Moreno

Tesla CEO Elon Musk has lost $100 billion as the electric vehicle maker’s stock price tanks, dealing a massive blow to the wealth of the world’s richest man.

Investors have soured on the company after it appears that Musk’s ties to the federal government may be hurting Tesla’s future rather than helping it. Musk owns 410,794,076 shares of Tesla as of December, or about 12.7% of the company.

The math is pretty straightforward here: back of the napkin, every time the company’s stock price dips by about $2.43, Musk loses $1 billion. Since its peak, the price has fallen by $241.85.

It’s been a bumpy ride; based on this, there have been 12 days this year alone where Tesla stock declined enough to reduce Musk’s net worth by $5 billion in a single trading period, and three days when he lost more than $10 billion. For perspective, there are only 194 individuals worth over $10 billion on Earth.

Tesla shares peaked at $479.86 on December 17. At that point, Musk’s stake in the company was worth $197 billion.

Tesla shares have dipped about 52% since then, reaching $238.01 on market close on Monday. That has cut Musk’s stake in Tesla to $97.7 billion.

There are lots of reasons why Tesla’s stock is down. Perhaps the simplest, though, is that the brand is more unpopular than ever among Americans, especially the Americans who like to buy electric cars.

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Pinterest sinks after weak revenue guidance and Q3 adjusted EPS misses estimates by 10%

Pinterest plunged nearly 18% in pre-market trading on Wednesday, after the company reported lower-than-expected earnings and a weak holiday-quarter forecast after the bell on Tuesday.

The social media platform posted adjusted EPS of 38 cents, below Wall Street's 42-cent estimates, while revenue matched analysts' expectations at $1.05 billion, up 17% from a year earlier.

The fly in the earnings ointment appears to be the guidance, however, with Pinterest only expecting Q4 sales of $1.31 billion to $1.34 billion, with the midpoint trailing analysts' $1.34 billion forecast.

Global monthly active users came in at an all-time high of 600 million, beating expectations, but average revenue per user came in at $1.78, slightly shy of projections. During the earnings call, CFO Julia Donnelly said the company saw "pockets of moderating ad spend" in the third quarter, as "larger US retailers navigate tariff-related margin pressure."

The company's soft results come as its peers, including Meta, Amazon, and Alphabet, recently reported strong digital ad sales.

CEO Bill Ready said Pinterest’s AI push is “paying off,” highlighting last week's launch of its AI-powered shopping assistant, Pinterest Assistant. Still, growth in its core North American market — which generates roughly three quarters of its revenue — remains a drag heading into the holiday season.

Arista Networks Reports Q3 Earnings

Arista Networks beats expectations, but stock dives on mediocre guidance

All those data centers are going to need a lot of switches and routers as well as GPUs.

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