SpaceX Stock Faces Headwinds as Short Interest Surges Ahead of Earnings

Why this matters: The simultaneous pressure from a canceled high-profile launch, rising bearish sentiment, and looming insider share unlocks creates a pivotal moment for SpaceX investors. The outcome of the August earnings and lock-up event could determine whether the stock stabilizes or continues its descent toward the psychologically important $100 level.

The Stock's Rapid Decline

SpaceX (SPCX) made its public market debut at $150 per share on June 12, 2026, following its initial public offering at $125. After an initial rally, the stock has since reversed sharply. Shares closed below $150 for the first time on July 10, dipped below the $125 IPO price on July 17, and hit an all-time closing low of $119.85 on July 20—representing a decline of over $1.1 trillion in market value from recent peaks.

The sell-off accelerated after the company scrapped plans to launch Starship V3 on July 16 due to an engine failure, the latest in a series of technical setbacks that have tested investor confidence. SpaceX has now targeted Thursday, July 23, for the next test flight attempt.

Short Sellers Pile On

Short interest has grown at an extraordinary pace. According to S3 Partners, 206 million shares are now sold short—roughly 32% of the publicly tradable float. That's up from 29% just last week and a dramatic jump from an estimated 40 million shares (5–7% of the float) about a month ago.

Matthew Unterman, head of research at S3, explained: "We continue to see short sellers adding exposure ahead of several key upcoming catalysts, including the company's first earnings report as a public company and subsequent lock-up expirations."

Elon Musk fired back on X, warning that betting against SpaceX was a losing strategy given his long-term vision for the company, which he argues will be "worth more than Earth if we achieve our goals."

Key Catalysts Ahead

August 4 – Q2 Earnings: SpaceX will report its first quarterly results as a public company after market close. Investors will closely scrutinize Starlink's revenue growth, new AI compute deals, spending on AI products like Grok, and overall profitability metrics. Analysts at Macquarie recently reiterated an outperform rating, urging investors to buy the weakness.

August 6 – Insider Share Unlock: As many as 900 million shares (roughly 20% of eligible locked shares) become eligible for trading. An additional 10% unlocks if the stock trades above $175.50 or more for 5 of 10 consecutive trading days. This event could inject significant selling pressure into the market.

Tesla Earnings Connection: Tesla's Q2 earnings, reported on Wednesday, July 22, are also noteworthy. Musk has reportedly discussed merging SpaceX and Tesla, though a merger becomes more complicated as SpaceX shares drop and Tesla shares rise, since SpaceX would likely be the acquirer given Musk's larger stake.

Price Levels to Watch

Market watchers have identified $100 as the next critical support level for SpaceX stock. With no immediate positive catalysts, the path of least resistance appears lower in the near term, although the August earnings release could serve as a pivotal inflection point.

Why has SpaceX stock dropped so sharply?

The decline stems from a combination of factors: the scrapped Starship V3 test flight due to engine issues, rising short interest (now at 32% of float), and investor anxiety ahead of the company's first quarterly earnings report and the upcoming insider share unlock.

What is the insider share unlock and why does it matter?

On August 6, approximately 900 million shares (20% of locked shares) become eligible for trading. This creates the potential for significant selling pressure as early investors and employees may look to cash out. An additional 10% unlocks if the stock trades above $175.50.

Could Tesla's earnings affect SpaceX stock?

Yes. Elon Musk has reportedly discussed a potential merger between the two companies, with SpaceX as the likely acquirer. Tesla's performance could influence the viability and structure of such a deal. Additionally, cross-ownership and sentiment between the two stocks often move in tandem.

What are the key price levels to watch?

After closing below its $150 debut price and $125 IPO price, the next major support level is $100. A break below that could trigger further downside. On the upside, a strong earnings report on August 4 could drive a rebound toward $150.

Do you think SpaceX stock will recover after its Q2 earnings report, or are the headwinds too strong? Share your thoughts in the comments below!

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