Delayed CBOE data, snapshot 2026-08-18. Spot $72.35.
Put/Call (OI)
0.58
28k P / 49k C
Put/Call (Volume)
1.11
862 P / 779 C today
30d ATM IV
22%
annualized implied move
Call wall
$75
5k contracts
Put wall
$60
6k contracts
Tail hedging
0.9×
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 | 9k | 4k | 0.39 | 623 |
| 2026-08-28 | 551 | 378 | 0.69 | 135 |
| 2026-09-04 | 300 | 85 | 0.28 | 21 |
| 2026-09-11 | 150 | 139 | 0.93 | 5 |
| 2026-09-18 | 12k | 8k | 0.65 | 396 |
| 2026-09-25 | 7 | 73 | 10.43 | 5 |
| 2026-10-02 | 18 | 10 | 0.56 | 7 |
| 2026-10-16 | 4k | 4k | 0.95 | 55 |
| 2026-12-18 | 5k | 3k | 0.64 | 17 |
| 2027-01-15 | 11k | 5k | 0.47 | 67 |
| 2027-03-19 | 2k | 2k | 1.02 | 60 |
| 2027-06-17 | 1k | 751 | 0.61 | 91 |
| 2028-01-21 | 4k | 1k | 0.40 | 159 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.