Delayed CBOE data, snapshot 2026-08-18. Spot $96.33.
Put/Call (OI)
0.68
684k P / 1.0M C
Put/Call (Volume)
0.60
48k P / 80k C today
30d ATM IV
57%
annualized implied move
Call wall
$100
86k contracts
Put wall
$70
61k contracts
Tail hedging
0.8×
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 | 191k | 151k | 0.79 | 69k |
| 2026-08-28 | 22k | 21k | 0.93 | 13k |
| 2026-09-04 | 11k | 10k | 0.86 | 9k |
| 2026-09-11 | 8k | 9k | 1.17 | 4k |
| 2026-09-18 | 123k | 89k | 0.72 | 13k |
| 2026-09-25 | 4k | 3k | 0.93 | 1k |
| 2026-10-02 | 775 | 260 | 0.34 | 862 |
| 2026-10-16 | 58k | 45k | 0.77 | 5k |
| 2026-11-20 | 38k | 33k | 0.87 | 2k |
| 2026-12-18 | 80k | 57k | 0.72 | 6k |
| 2027-01-15 | 177k | 125k | 0.71 | 2k |
| 2027-02-19 | 7k | 7k | 0.99 | 656 |
| 2027-03-19 | 46k | 28k | 0.62 | 309 |
| 2027-04-16 | 9k | 5k | 0.48 | 115 |
| 2027-05-21 | 5k | 3k | 0.61 | 116 |
| 2027-06-17 | 36k | 24k | 0.68 | 798 |
| 2027-12-17 | 89k | 20k | 0.23 | 689 |
| 2028-01-21 | 92k | 45k | 0.49 | 981 |
| 2028-12-15 | 15k | 8k | 0.55 | 633 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.