Delayed CBOE data, snapshot 2026-08-18. Spot $146.89.
Put/Call (OI)
0.79
2k P / 3k C
Put/Call (Volume)
0.50
16 P / 32 C today
30d ATM IV
21%
annualized implied move
Call wall
$160
975 contracts
Put wall
$140
518 contracts
Tail hedging
4.6×
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 | 615 | 638 | 1.04 | 12 |
| 2026-09-18 | 2k | 1k | 0.62 | 29 |
| 2026-10-16 | 15 | 20 | 1.33 | 0 |
| 2026-12-18 | 206 | 336 | 1.63 | 0 |
| 2027-03-19 | 46 | 37 | 0.80 | 7 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.