Delayed CBOE data, snapshot 2026-08-18. Spot $1,169.
Put/Call (OI)
1.07
13k P / 12k C
Put/Call (Volume)
0.34
227 P / 660 C today
30d ATM IV
31%
annualized implied move
Call wall
$1,280
623 contracts
Put wall
$880
957 contracts
Tail hedging
4.1×
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 | 2k | 2k | 0.97 | 679 |
| 2026-08-28 | 199 | 138 | 0.69 | 61 |
| 2026-09-04 | 26 | 45 | 1.73 | 13 |
| 2026-09-11 | 31 | 73 | 2.35 | 48 |
| 2026-09-18 | 2k | 3k | 1.47 | 28 |
| 2026-09-25 | 180 | 281 | 1.56 | 7 |
| 2026-10-02 | 8 | 180 | 22.50 | 1 |
| 2026-12-18 | 1k | 2k | 1.65 | 1 |
| 2027-01-15 | 4k | 4k | 0.83 | 41 |
| 2027-03-19 | 223 | 209 | 0.94 | 0 |
| 2027-06-17 | 776 | 295 | 0.38 | 0 |
| 2028-01-21 | 1k | 1k | 1.07 | 8 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.