Delayed CBOE data, snapshot 2026-08-18. Spot $1,080.
Put/Call (OI)
1.42
126k P / 88k C
Put/Call (Volume)
1.20
14k P / 12k C today
30d ATM IV
49%
annualized implied move
Call wall
$1,100
4k contracts
Put wall
$800
9k contracts
Tail hedging
3.1×
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 | 14k | 17k | 1.18 | 6k |
| 2026-08-28 | 2k | 8k | 4.16 | 1k |
| 2026-09-04 | 1k | 4k | 3.58 | 1k |
| 2026-09-11 | 808 | 2k | 2.51 | 802 |
| 2026-09-18 | 15k | 20k | 1.35 | 2k |
| 2026-09-25 | 172 | 2k | 11.62 | 263 |
| 2026-10-02 | 5 | 81 | 16.20 | 2k |
| 2026-10-16 | 6k | 11k | 1.70 | 3k |
| 2026-12-18 | 6k | 8k | 1.31 | 8k |
| 2027-01-15 | 23k | 31k | 1.35 | 650 |
| 2027-03-19 | 5k | 4k | 0.82 | 458 |
| 2027-06-17 | 4k | 7k | 1.86 | 82 |
| 2027-09-17 | 2k | 2k | 0.81 | 271 |
| 2027-12-17 | 79 | 24 | 0.30 | 12 |
| 2028-01-21 | 5k | 6k | 1.14 | 159 |
| 2028-12-15 | 3k | 4k | 1.20 | 171 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.