Delayed CBOE data, snapshot 2026-08-18. Spot $140.42.
Put/Call (OI)
0.90
33k P / 37k C
Put/Call (Volume)
0.40
115 P / 290 C today
30d ATM IV
21%
annualized implied move
Call wall
$155
5k contracts
Put wall
$125
6k contracts
Tail hedging
0.9×
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 | 6k | 1.01 | 97 |
| 2026-09-18 | 9k | 8k | 0.86 | 184 |
| 2026-10-16 | 3k | 2k | 0.53 | 23 |
| 2026-11-20 | 1k | 718 | 0.52 | 14 |
| 2026-12-18 | 1k | 2k | 1.93 | 55 |
| 2027-01-15 | 10k | 8k | 0.82 | 5 |
| 2027-02-19 | 562 | 3k | 6.04 | 2 |
| 2027-03-19 | 645 | 979 | 1.52 | 2 |
| 2027-06-17 | 3k | 1k | 0.41 | 1 |
| 2028-01-21 | 1k | 573 | 0.41 | 22 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.