Comfort Systems USA Inc. options tape
Read from CBOE's delayed chain on 23 September 2026, with Comfort Systems USA Inc. at $1,618.55: open interest within 90 days was 5,468 call and 8,321 put contracts, a put/call ratio of 1.52; the day's volume was 177 calls and 270 puts (1.53). The most call open interest sits at the $900.00 strike (411 contracts) and the most put open interest at $1,520.00 (663). The at-the-money straddle for 16 October 2026, 23 days out, was priced at 11.1% of spot. For 16 October 2026, implied volatility was 55.6% at the put 5% below spot and 52.3% at the call 5% above, +3.3 points.
Where the open interest sits
| Side | Strike | Open interest |
|---|---|---|
| Calls | $900.00 | 411 |
| Puts | $1,520.00 | 663 |
The strike with the most open interest on each side, across expiries within 90 days.
Source
CBOE delayed quotes for FIX, the free 15-minute-delayed chain, read once a day. Figures describe positioning; they are not a forecast.
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