Generac Holdings Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Generac Holdings Inc. at $205.95: open interest within 90 days was 13,196 call and 12,862 put contracts, a put/call ratio of 0.97; the day's volume was 2,462 calls and 1,844 puts (0.75). The most call open interest sits at the $220.00 strike (1,458 contracts) and the most put open interest at $190.00 (1,658). The at-the-money straddle for 25 September 2026, 2 days out, was priced at 4.7% of spot. For 16 October 2026, implied volatility was 48.2% at the put 5% below spot and 47.2% at the call 5% above, +1.0 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $220.00 | 1,458 |
| Puts | $190.00 | 1,658 |
The strike with the most open interest on each side, across expiries within 90 days.
Strikes where the day's volume was at least twice the open interest
| Contract | Volume | Open interest before | Premium traded |
|---|---|---|---|
| 25 September 2026 call at $205.00 | 232 | 115 | $109,040 |
Volume of at least 200 contracts and at least twice the open interest, with at least $25,000 of premium at the mid; contracts expiring the same day are left out. Premium is mid price times volume times 100.
Open interest built since 22 September 2026
| Contract | Open interest now | Change |
|---|---|---|
| 16 October 2026 put at $195.00 | 497 | +446 |
| 16 October 2026 put at $200.00 | 469 | +295 |
Contracts whose open interest rose by 250 or more against the previous day's snapshot.
Source
CBOE delayed quotes for GNRC, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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