Delayed CBOE data, snapshot 2026-08-18. Spot $177.17.
Put/Call (OI)
0.57
7k P / 13k C
Put/Call (Volume)
0.57
98 P / 171 C today
30d ATM IV
47%
annualized implied move
Call wall
$210
870 contracts
Put wall
$150
792 contracts
Tail hedging
1.0×
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 | 4k | 2k | 0.56 | 53 |
| 2026-09-18 | 3k | 2k | 0.52 | 162 |
| 2026-12-18 | 5k | 3k | 0.59 | 29 |
| 2027-03-19 | 915 | 627 | 0.69 | 25 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.