Delayed CBOE data, snapshot 2026-08-18. Spot $101.98.
Put/Call (OI)
0.18
5k P / 28k C
Put/Call (Volume)
0.00
0 P / 4 C today
30d ATM IV
27%
annualized implied move
Call wall
$115
10k contracts
Put wall
$75
1k contracts
Tail hedging
0.4×
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 | 6k | 1k | 0.22 | 0 |
| 2026-09-18 | 2k | 1k | 0.89 | 0 |
| 2026-10-16 | 509 | 42 | 0.08 | 0 |
| 2026-11-20 | 16k | 1k | 0.08 | 3 |
| 2026-12-18 | 3k | 844 | 0.25 | 0 |
| 2027-02-19 | 45 | 168 | 3.73 | 0 |
| 2027-12-17 | 4 | 0 | 0.00 | 1 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.