Delayed CBOE data, snapshot 2026-08-18. Spot $75.81.
Put/Call (OI)
1.02
31k P / 31k C
Put/Call (Volume)
0.47
354 P / 754 C today
30d ATM IV
21%
annualized implied move
Call wall
$84
5k contracts
Put wall
$60
7k 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 | 10k | 3k | 0.33 | 257 |
| 2026-08-28 | 273 | 125 | 0.46 | 31 |
| 2026-09-04 | 146 | 165 | 1.13 | 16 |
| 2026-09-11 | 26 | 17 | 0.65 | 7 |
| 2026-09-18 | 3k | 2k | 0.87 | 212 |
| 2026-09-25 | 7 | 89 | 12.71 | 3 |
| 2026-10-02 | 3 | 1 | 0.33 | 20 |
| 2026-10-16 | 323 | 689 | 2.13 | 44 |
| 2026-11-20 | 782 | 1k | 1.64 | 4 |
| 2026-12-18 | 6k | 11k | 1.88 | 81 |
| 2027-01-15 | 5k | 9k | 1.67 | 355 |
| 2027-02-19 | 47 | 126 | 2.68 | 1 |
| 2027-03-19 | 232 | 342 | 1.47 | 7 |
| 2027-06-17 | 1k | 1k | 0.97 | 62 |
| 2028-01-21 | 3k | 1k | 0.38 | 8 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.