Vistra Corp. options tape
Read from CBOE's delayed chain on 23 September 2026, with Vistra Corp. at $140.41: open interest within 90 days was 138,717 call and 112,545 put contracts, a put/call ratio of 0.81; the day's volume was 7,124 calls and 5,466 puts (0.77). The most call open interest sits at the $170.00 strike (23,806 contracts) and the most put open interest at $125.00 (18,072). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 3.3% of spot. For 16 October 2026, implied volatility was 41.4% at the put 5% below spot and 42.4% at the call 5% above, -1.0 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $170.00 | 23,806 |
| Puts | $125.00 | 18,072 |
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 |
|---|---|---|
| 25 September 2026 call at $155.00 | 2,521 | +1,610 |
| 25 September 2026 put at $140.00 | 1,588 | +1,050 |
| 20 November 2026 call at $160.00 | 2,223 | +1,003 |
| 20 November 2026 call at $175.00 | 1,329 | +1,003 |
| 25 September 2026 call at $145.00 | 781 | +403 |
| 25 September 2026 call at $149.00 | 504 | +353 |
| 25 September 2026 call at $162.50 | 319 | +286 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for VST, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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