Which companies added to S&P 500 in Q1 2026?: result and scorecard
Resolved Ciena (CIEN). One day before close Polymarket priced that outcome at 29.5%; a week before, 34.0%. $1.0M traded in total.
Result
Price 1 day before
Price 7 days before
Volume
S&P 500TechFinanceIndiciesBig Tech
Final prices by outcome
| Outcome | Result |
|---|---|
| Ciena (CIEN) | WON |
| Vertiv Holdings (VRT) | WON |
| Strategy (MicroStrategy) (MSTR) | LOST |
| SoFi Technologies (SOFI) | LOST |
| Affirm Holdings (AFRM) | LOST |
| Alnylam Pharmaceuticals (ALNY) | LOST |
| Pure Storage (PSTG) | LOST |
Price history to resolution
Scorecard
Resolution 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).
Frequently asked questions
- How did "Which companies added to S&P 500 in Q1 2026?" resolve?
- It resolved Ciena (CIEN) around March 31, 2026.
- What did the market predict?
- Polymarket priced the winning outcome at 29.5% one day before close, 34.0% one week before and 26.0% one month before.
- How much was traded?
- $1.0M across 7 outcomes.
Related on BetG8
Data: Polymarket Gamma and CLOB APIs, fetched by BetG8 at the time shown above. Venues may restrict access by location. 18+ only.