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SpaceX Goes Public — Musk Becomes First Trillionaire
SpaceX's historic debut made Musk the first trillionaire, but markets put the odds of a second one emerging by 2027 at just 16 percent.
Probable’s read
Low confidence. Synthesized from prediction markets, professional analysts, public opinion, and official data.
What’s likely. The Washington Post reported that SpaceX shares closed up 19 percent on their first trading day, with the Wall Street Journal confirming Musk's net worth crossed the trillion-dollar threshold in what Bloomberg called 'the world's biggest IPO.' AP News reported US stocks rose broadly on the day, with SpaceX's debut a key driver. Against that backdrop, a Manifold market asks whether any other person reaches trillionaire status by the end of 2027 — and traders there put the probability at 16 percent, reflecting how far the nearest competitors remain from that threshold even after a landmark market event.
What the markets say
Manifold traders put the odds of a non-Musk trillionaire by end of 2027 at 16 percent.
Source: Manifold
How Probable got to 16 percent
This card relies on a single Manifold market with thin volume — around $1,600 traded in 24 hours — so confidence is low and the realistic range runs from roughly 1 to 34 percent. The 16 percent figure captures trader skepticism that any other individual can match Musk's SpaceX-driven wealth leap within 18 months. Probable cannot tighten this range without analyst or broader market data on specific wealth trajectories.
Why it matters to you
Musk's crossing the trillion-dollar threshold marks a new benchmark in concentrated private wealth, and the question of whether others follow quickly has implications for wealth tax policy debates already active in several G7 countries.
What to watch
Watch whether any other tech founder's primary asset — particularly those with large private company stakes — pursues a public listing in 2026 or early 2027, which would be the most direct catalyst for a second trillionaire.
Further reading
The question we’re forecasting
Will there be a trillionaire other than Elon Musk by the end of 2027?
Resolves by December 31, 2027 — then we grade it yes/no on the scoreboard.
From the briefing
This forecast was published in Probable’s briefing on Saturday, June 13, 2026: Saturday on Probable — The US government just blocked foreign access to Anthropic's most powerful AI — and no market has priced it yet..
Probable’s forecasts synthesize prediction markets, professional analysts, public opinion, and official data. Drafted with AI from cited sources. Reviewed before publishing. Not financial advice. Methodology · Spot an error?