SpaceX stock falls 10% as AI spending surge rattles investors and massive share unlock looms

SpaceX shares sank 10% on Wednesday after a surge in artificial intelligence spending rattled investors and clouded an otherwise expectation-beating quarter.

In SpaceX's first earnings report as a public company on Tuesday, Elon Musk 's space firm said its capital expenditures jumped sixfold to $18.4 billion in the second quarter. This figure was ahead of analyst expectations, with the majority of the spending going toward AI.

The company's stock closed at just over $125 on Tuesday, sitting below its $135 initial public offering price. It is well off its more than $200 all-time high that was hit shortly after it began trading on June 12.

SpaceX shares over the past five days. Investors have been on edge this earnings season as concerns rise about whether large tech companies can prove their multibillion-dollar investments are yielding returns.

While SpaceX's own models are seen as behind OpenAI and Anthropic, the company is positioning itself as an alternative cloud player by renting out the computing capacity that it is building with Nvidia chips.

SpaceX's CFO, Bret Johnsen, looked to allay investor fears over capex spending. The company has been "efficient" with its spending, he said on an earnings call.

"On the AI compute side, we're able to deploy capital in such a way that we're getting less than a one-year payback," Johnsen added.

The share price fell even as SpaceX narrowed its losses and promised significant future revenue. Musk said SpaceX would hit $1 trillion in annual revenue in 2030 versus a previous forecast of 2031.

"SpaceX wants to tell the story they're the market leader. ... But people still have these questions: how quickly can they grow? How big are the costs going to be before this thing gets to profitability?" Steve Westly, founder of The Westly Group and a former Tesla board member, told CNBC's " Squawk Box Europe " on Wednesday.

The company is contending with another potential market-moving event on Thursday — the expiration of insider lockups. This means that insiders can finally sell a portion of their shares.

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