Delayed CBOE data, snapshot 2026-08-18. Spot $184.83.
Put/Call (OI)
2.39
6k P / 2k C
Put/Call (Volume)
0.57
49 P / 86 C today
30d ATM IV
33%
annualized implied move
Call wall
$190
473 contracts
Put wall
$175
1k contracts
Tail hedging
2.5×
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 | 530 | 5k | 9.21 | 82 |
| 2026-09-18 | 1k | 810 | 0.68 | 39 |
| 2026-12-18 | 724 | 221 | 0.31 | 12 |
| 2027-03-19 | 39 | 43 | 1.10 | 2 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.