Delayed CBOE data, snapshot 2026-08-18. Spot $90.21.
Put/Call (OI)
0.59
30k P / 51k C
Put/Call (Volume)
0.46
763 P / 2k C today
30d ATM IV
22%
annualized implied move
Call wall
$100
11k contracts
Put wall
$80
7k contracts
Tail hedging
0.7×
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 | 0.30 | 678 |
| 2026-08-28 | 494 | 589 | 1.19 | 101 |
| 2026-09-04 | 169 | 75 | 0.44 | 45 |
| 2026-09-11 | 43 | 32 | 0.74 | 26 |
| 2026-09-18 | 11k | 10k | 0.87 | 874 |
| 2026-09-25 | 32 | 69 | 2.16 | 34 |
| 2026-10-02 | 4 | 9 | 2.25 | 209 |
| 2026-11-20 | 3k | 874 | 0.26 | 59 |
| 2026-12-18 | 3k | 3k | 0.77 | 202 |
| 2027-01-15 | 9k | 8k | 0.87 | 135 |
| 2027-02-19 | 146 | 403 | 2.76 | 2 |
| 2027-03-19 | 9k | 1k | 0.12 | 8 |
| 2027-06-17 | 728 | 1k | 1.45 | 15 |
| 2028-01-21 | 3k | 2k | 0.82 | 26 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.