Delayed CBOE data, snapshot 2026-08-18. Spot $73.45.
Put/Call (OI)
0.55
136k P / 246k C
Put/Call (Volume)
1.42
7k P / 5k C today
30d ATM IV
26%
annualized implied move
Call wall
$80
101k contracts
Put wall
$65
54k contracts
Tail hedging
1.2×
deep-OTM puts vs calls
All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.
At-the-money implied volatility per expiry.
IV by strike — expiry 2026-09-18. A steep left side = expensive downside protection.
Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 27k | 10k | 0.39 | 2k |
| 2026-08-28 | 3k | 18k | 5.49 | 670 |
| 2026-09-04 | 3k | 939 | 0.37 | 36 |
| 2026-09-11 | 3k | 52k | 16.60 | 288 |
| 2026-09-18 | 16k | 30k | 1.89 | 881 |
| 2026-09-25 | 40 | 4 | 0.10 | 3 |
| 2026-10-02 | 0 | 1 | — | 0 |
| 2026-10-16 | 3k | 4k | 1.49 | 797 |
| 2026-11-20 | 156k | 3k | 0.02 | 145 |
| 2026-12-18 | 8k | 2k | 0.30 | 411 |
| 2027-01-15 | 15k | 9k | 0.56 | 6k |
| 2027-02-19 | 308 | 212 | 0.69 | 11 |
| 2027-03-19 | 1k | 710 | 0.63 | 58 |
| 2027-06-17 | 5k | 3k | 0.59 | 168 |
| 2028-01-21 | 5k | 2k | 0.33 | 43 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.