Constellation Energy Corp. options tape
Read from CBOE's delayed chain on 23 September 2026, with Constellation Energy Corp. at $263.86: open interest within 90 days was 35,491 call and 50,708 put contracts, a put/call ratio of 1.43; the day's volume was 2,762 calls and 1,643 puts (0.59). The most call open interest sits at the $330.00 strike (5,304 contracts) and the most put open interest at $225.00 (5,640). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 3.2% of spot. For 16 October 2026, implied volatility was 40.3% at the put 5% below spot and 42.8% at the call 5% above, -2.5 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $330.00 | 5,304 |
| Puts | $225.00 | 5,640 |
The strike with the most open interest on each side, across expiries within 90 days.
Open interest built since 22 September 2026
| Contract | Open interest now | Change |
|---|---|---|
| 16 October 2026 call at $330.00 | 1,300 | +946 |
| 25 September 2026 call at $275.00 | 1,014 | +834 |
| 25 September 2026 call at $280.00 | 725 | +505 |
| 23 October 2026 put at $325.00 | 298 | +298 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for CEG, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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