Delayed CBOE data, snapshot 2026-08-18. Spot $145.98.
Put/Call (OI)
0.40
4k P / 11k C
Put/Call (Volume)
1.37
37 P / 27 C today
30d ATM IV
40%
annualized implied move
Call wall
$160
3k contracts
Put wall
$110
2k contracts
Tail hedging
10.0×
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 | 6k | 1k | 0.21 | 21 |
| 2026-09-18 | 53 | 30 | 0.57 | 5 |
| 2026-10-16 | 107 | 87 | 0.81 | 11 |
| 2026-11-20 | 770 | 2k | 2.28 | 6 |
| 2027-01-15 | 5k | 1k | 0.30 | 21 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.