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SpaceX IPO: Officially added to S&P 500 in 2026?

The market puts it at 4.7% — a long shot, about one in 22 — on Polymarket, as of Oct 10, 05:25 UTC. It's up 3 points in the last 24 hours.

Yes 4.7% ▲ 3 pts · 24h

The odds

as of Oct 10, 05:25 UTC
  • Chance of yes 4.7% +3
Traded today$881
Traded in all$29K
Yes, 7 days+3 pts

Yes, the last 7 days

Polymarket price
25%50%75%Oct 2Oct 105%

Oct 3: 1.5% · Oct 4: 1.5% · Oct 5: 1.5% · Oct 6: 1.5% · Oct 7: 1.5% · Oct 8: 1.5% · Oct 9: 1.4% · Oct 10: 4.7%

How it resolves

Polymarket's rule, word for word
The S&P 500 undergoes quarterly reconstitution on the third Friday of March, June, September, and December. This market will resolve to "Yes" if S&P Global Inc. announces that SpaceX will be added to the S&P 500 index by December 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No." An announcement from S&P will qualify for a "Yes" resolution, regardless of whether the listed company has actually been added to the S&P 500 index by the resolution date. The primary resolution source will be official announcements from S&P Global Inc. (https://www.spglobal.com/en/press/press-release).
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