{"id":"1794077048825-tech-segment","slug":"alphabet-piles-deeper-into-spacex","title":"Alphabet piles deeper into SpaceX","summary":"Alphabet's Q3 2026 SEC 13F filing shows it held 555,043,560 SpaceX Class A shares as of Sept. 30, 2026, up 3,854,060 shares from Q2, valued at about $83.73 billion. SpaceX was about 94.78% of Alphabet's reported U.S. equity portfolio; Google's original SpaceX investment was $900 million in 2015.","publishedAt":"2026-11-07T18:44:08.825Z","channel":{"id":"tech","name":"Oncast Tech","language":"en"},"show":"The Build","verification":{"status":"verified","leadVerdict":"TRUE","notes":"TRUE: Alphabet's Q3 2026 SEC 13F filing shows it held 555,043,560 SpaceX Class A shares as of Sept. 30, 2026, up 3,854,060 shares from Q2, valued at about $83.73 billion. SpaceX was about 94.78% of Alphabet's reported U.S. equity portfolio; Google's original SpaceX investment was $900 million in 2015.\nSource: [fourweekmba.com](https://fourweekmba.com/ai-alphabet-added-3-85m-spacex-shares-in-q3-13f-filing-shows/) NAMES: Alphabet = Google's parent company; SpaceX = Elo (https://x.com/elonmusk/status/2119135865662300669)","claims":[{"verdict":"TRUE","summary":"Alphabet's Q3 2026 SEC 13F filing shows it held 555,043,560 SpaceX Class A shares as of Sept. 30, 2026, up 3,854,060 shares from Q2, valued at about $83.73 billion. SpaceX was about 94.78% of Alphabet's reported U.S. equity portfolio; Google's original SpaceX investment was $900 million in 2015.","sourceName":"[fourweekmba.com](https://fourweekmba.com/ai-alphabet-added-3-85m-spacex-shares-in-q3-13f-filing-shows/) NAMES: Alphabet = Google's parent company; SpaceX = Elo","sourceUrl":"https://x.com/elonmusk/status/2119135865662300669","claim":"Interesting https://t.co/qjauJYdDyT","author":"Elon Musk (@elonmusk)"}]},"sources":[{"url":"https://x.com/elonmusk/status/2119135865662300669","name":"[fourweekmba.com](https://fourweekmba.com/ai-alphabet-added-3-85m-spacex-shares-in-q3-13f-filing-shows/) NAMES: Alphabet = Google's parent company; SpaceX = Elo","kind":"x","verdict":"TRUE","author":"Elon Musk (@elonmusk)"}],"url":"https://oncast.fm/story/1794077048825-tech-segment-alphabet-piles-deeper-into-spacex","listenUrl":"https://oncast.fm/c/tech","attribution":{"publisher":"Oncast","site":"https://oncast.fm","url":"https://oncast.fm/story/1794077048825-tech-segment-alphabet-piles-deeper-into-spacex","cite":"Cite https://oncast.fm/story/1794077048825-tech-segment-alphabet-piles-deeper-into-spacex and the original source links. Fact-check by Oncast (oncast.fm)."},"hostsSaid":[{"host":"Chris","text":"Elon just posted one word on X: Interesting."},{"host":"Matilda","text":"That's it? \"Interesting\"?"},{"host":"Chris","text":"He's quoting DogeDesigner, who pulled the new SEC filing. Alphabet added three point eight five million more SpaceX shares last quarter."},{"host":"Matilda","text":"Alphabet now holds five hundred fifty-five million SpaceX shares. Worth about eighty-three billion dollars."},{"host":"Chris","text":"That started with a nine hundred million dollar check from Google back in twenty fifteen."},{"host":"Matilda","text":"And now SpaceX alone is almost ninety-five percent of Alphabet's reported stock portfolio."},{"host":"Chris","text":"I think that's the best venture return in Big Tech. Bar none."},{"host":"Matilda","text":"It's also a massive concentration. One rocket company, one bad quarter, and the whole equity book wobbles."},{"host":"Chris","text":"Oh, come on. The equity book isn't Alphabet's core business. Ads, Cloud, YouTube—that's the company."},{"host":"Matilda","text":"So why put almost all the stock portfolio in one name?"},{"host":"Chris","text":"Because it's the best company they could buy. You don't diversify into mediocrity just to look responsible."},{"host":"Matilda","text":"That's not how a parent company manages risk. You diversify because you don't know which bet fails."},{"host":"Chris","text":"They didn't fail! They've been right for a decade, through every rocket delay and test anomaly."},{"host":"Matilda","text":"That's survivor bias, Chris. Google had enough cash to lose it all and still dominate search."},{"host":"Chris","text":"But they didn't lose. They bought private, it listed, and now they're adding more."},{"host":"Matilda","text":"They're adding at a much higher valuation! The original nine hundred million is history; this is new capital."},{"host":"Chris","text":"New capital into the most valuable private company in the world, with launch demand that keeps growing."},{"host":"Matilda","text":"I'm not saying SpaceX is bad. I'm saying Alphabet behaving like a hedge fund is not a strategy."},{"host":"Chris","text":"The alternative is sitting in treasuries while your core AI business gets eaten alive. I'll take the rocket exposure."},{"host":"Matilda","text":"They could buy back their own stock and let shareholders decide."},{"host":"Chris","text":"Now you're just arguing with Warren Buffett."},{"host":"Matilda","text":"And he'd agree with me on concentration."},{"host":"Chris","text":"Fine—Alphabet should call Buffett for allocation advice and Musk for launch dates."},{"host":"Matilda","text":"You're still wrong. But that call would be interesting."},{"host":"Matilda","text":"While we're on AI and security, an AI daily newsletter on X floated a claim that should make you check your ChatGPT links."},{"host":"Chris","text":"What kind of claim?"},{"host":"Matilda","text":"Fady's AI Systems newsletter says a crafted ChatGPT share link could run code, read a visitor's chats, and send them out."},{"host":"Chris","text":"That would be a serious hole."},{"host":"Matilda","text":"The newsletter claims OpenAI paid five thousand dollars and hasn't said whether anyone was hit."},{"host":"Chris","text":"Five thousand dollars for reading people's chats sounds low."},{"host":"Matilda","text":"As of now, no reliable outlet or OpenAI statement confirms that story. Treat it as a rumor."},{"host":"Chris","text":"Still, sharing chat links with strangers is already a bad idea. Now it's a worse idea."},{"host":"Matilda","text":"If OpenAI confirms it, we'll cover the fix. For now, don't panic, but don't share links with anything sensitive."}]}