Tesla Owns Nearly 19 Million Shares of SpaceX: What TSLA Investors Need to Know Before the IPO

I’ve been digging through the SpaceX S-1 filing for hours, and one number deserves its own spotlight in every TSLA model: Tesla’s beneficial ownership of SpaceX Class A common stock.  I’m not going to waste your time with a huge…

Published May 20, 2026, 7:15pm ET · 2 min read

Elon Musk, a man with light brown hair, wears a black suit and white shirt, holding a clear plastic water bottle. He stands outdoors on a dirt path with grassy areas, looking slightly up and to his right, smiling softly as he speaks to another man whose back and left shoulder, wearing a suit and striped tie, are visible on the left side of the frame. In the background, under a partly cloudy sky, a large dark blue banner with 'SPACEX FUTURE HOME OF SPACEX'S SOUTH TEXAS LAUNCH PAD' and an image of a rocket launch is displayed on metal stands.
Elon Musk, CEO of SpaceX, discusses plans at the company's South Texas launch pad site. Despite significant revenue growth, SpaceX's stock has remained largely flat since its inception, prompting investor questions about its future trajectory. © Robert Daemmrich Photography Inc / Getty Images

I’ve been digging through the SpaceX S-1 filing for hours, and one number deserves its own spotlight in every TSLA model: Tesla’s beneficial ownership of SpaceX Class A common stock. 

I’m not going to waste your time with a huge article about this. I thought you needed to know right way, so here are the bullets:

The Metric

Tesla (NASDAQ:TSLA | TSLA Price Prediction) is the beneficial owner of 18,990,195 shares of SpaceX Class A common stock as of May 1, 2026, representing an ownership interest of less than 1.0% of total outstanding Class A shares after giving effect to the offering.

TSLA price target

Why It Matters

This is an off-balance-sheet asset that Tesla’s auto-and-energy revenue mix completely hides. Tesla already disclosed a $2B investment in SpaceX equity in its Q1 2026 8-K filed April 22, 2026. Once SpaceX prices, that stake gets a public mark, and Tesla shareholders inherit a direct claim on rocket and Starlink economics.

The Current State

Polymarket traders assign a 61% implied probability to a SpaceX IPO valuation in the $1.75T to $2.00T range, with a 70.5% probability of closing first-day market cap above $2T. The same crowd prices SpaceX higher than Tesla on June 30 at 88.5%.

What to Watch

Bullish: the Terafab chip collaboration announced March 2026, plus Intel joining in April 2026, deepens the SpaceX relationship beyond passive equity. Bearish: only 1.4% odds of a Tesla-SpaceX merger announcement by June 30 means the two stay separate, and minority-stake accounting limits how much value flows through.

The (Very Quick) Verdict

With TSLA trading at $417.26 on a 370 trailing P/E, the 19 million SpaceX shares are the hidden asset the consensus model isn’t pricing, and the IPO is the moment that changes.

TSLA price scenario

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Jeremy Phillips

I've been writing about stocks and personal finance for 20+ years. I believe all great companies are tech companies in the long run, and I invest accordingly.

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