Delayed CBOE data, snapshot 2026-08-18. Spot $120.98.
Put/Call (OI)
0.59
23k P / 40k C
Put/Call (Volume)
0.23
336 P / 1k C today
30d ATM IV
16%
annualized implied move
Call wall
$130
10k contracts
Put wall
$105
5k contracts
Tail hedging
1.4×
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 | 434 |
| 2026-08-28 | 348 | 66 | 0.19 | 38 |
| 2026-09-04 | 701 | 128 | 0.18 | 8 |
| 2026-09-11 | 312 | 27 | 0.09 | 16 |
| 2026-09-18 | 7k | 3k | 0.39 | 835 |
| 2026-09-25 | 94 | 54 | 0.57 | 104 |
| 2026-10-02 | 8 | 1 | 0.13 | 18 |
| 2026-11-20 | 3k | 1k | 0.33 | 228 |
| 2026-12-18 | 3k | 866 | 0.34 | 13 |
| 2027-01-15 | 8k | 5k | 0.64 | 58 |
| 2027-02-19 | 385 | 174 | 0.45 | 2 |
| 2027-03-19 | 2k | 2k | 0.98 | 0 |
| 2027-06-17 | 2k | 5k | 2.69 | 2 |
| 2028-01-21 | 3k | 2k | 0.73 | 58 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.