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Description
S&P 500 quarterly reconstitution is scheduled for March 20, 2026. This event tests which listed companies—Vertiv (VRT), Pure Storage (PSTG), SoFi Technologies (SOFI), Ciena (CIEN), Strategy (MicroStrategy) (MSTR), Alnylam Pharmaceuticals (ALNY), and Affirm Holdings (AFRM)—will be added to the index by March 31, 2026, 11:59 PM ET, based on official S&P Global press announcements. A Yes resolves only when S&P Global announces the addition by the deadline; any other outcome resolves to No.
Event stats
24h volume
Total volume
Liquidity
Markets
7
Market highlights
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24h gainer
24h loser
Highest volume
Top market
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Markets
Outcome | Odds | Spread | 24h Change | 24h Volume | Total Volume | Liquidity | |
|---|---|---|---|---|---|---|---|
| Vertiv Holdings (VRT) | Yes | — | — | — | — | — | |
| Pure Storage (PSTG) | No | — | — | — | — | — | |
| SoFi Technologies (SOFI) | No | — | — | — | — | — | |
| Ciena (CIEN) | Yes | — | — | — | — | — | |
| Strategy (MicroStrategy) (MSTR) | No | — | — | — | — | — | |
| Alnylam Pharmaceuticals (ALNY) | No | — | — | — | — | — | |
| Affirm Holdings (AFRM) | No | — | — | — | — | — |
Rules
The S&P 500 undergoes quarterly reconstitution on the third Friday of March, June, September, and December. The next rebalance is currently scheduled for March 20, 2026. This market will resolve to "Yes" if S&P Global Inc. announces that the listed company will be added to the S&P 500 index by March 31, 2026, 11:59 PM ET. Otherwise, this market will resolve to "No." To qualify, the listed ticker must match the announced ticker added to the index. 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).