Delayed CBOE data, snapshot 2026-08-18. Spot $96.68.
Put/Call (OI)
1.38
75k P / 55k C
Put/Call (Volume)
0.56
576 P / 1k C today
30d ATM IV
21%
annualized implied move
Call wall
$100
7k contracts
Put wall
$77.5
11k contracts
Tail hedging
10.8×
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 | 5k | 4k | 0.71 | 203 |
| 2026-09-18 | 12k | 18k | 1.41 | 528 |
| 2026-10-16 | 1k | 2k | 1.73 | 24 |
| 2026-11-20 | 2k | 268 | 0.13 | 27 |
| 2026-12-18 | 8k | 12k | 1.46 | 30 |
| 2027-01-15 | 15k | 26k | 1.78 | 44 |
| 2027-03-19 | 3k | 3k | 1.07 | 5 |
| 2027-06-17 | 1k | 6k | 4.23 | 51 |
| 2027-12-17 | 2k | 600 | 0.37 | 1 |
| 2028-01-21 | 5k | 4k | 0.78 | 690 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.