Delayed CBOE data, snapshot 2026-08-18. Spot $1,050.82.
Put/Call (OI)
0.85
215k P / 252k C
Put/Call (Volume)
0.58
21k P / 36k C today
30d ATM IV
30%
annualized implied move
Call wall
$1,100
12k contracts
Put wall
$800
7k contracts
Tail hedging
1.3×
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 | 30k | 35k | 1.15 | 38k |
| 2026-08-28 | 4k | 8k | 2.08 | 4k |
| 2026-09-04 | 3k | 4k | 1.38 | 1k |
| 2026-09-11 | 2k | 2k | 1.17 | 3k |
| 2026-09-18 | 27k | 28k | 1.04 | 2k |
| 2026-09-25 | 846 | 1k | 1.50 | 903 |
| 2026-10-02 | 42 | 108 | 2.57 | 1k |
| 2026-10-16 | 10k | 11k | 1.12 | 619 |
| 2026-11-20 | 9k | 10k | 1.17 | 843 |
| 2026-12-18 | 24k | 24k | 1.00 | 570 |
| 2027-01-15 | 34k | 39k | 1.14 | 1k |
| 2027-03-19 | 10k | 9k | 0.89 | 707 |
| 2027-06-17 | 27k | 17k | 0.63 | 914 |
| 2028-01-21 | 16k | 10k | 0.63 | 112 |
| 2028-03-17 | 7k | 3k | 0.45 | 121 |
| 2028-06-16 | 12k | 4k | 0.35 | 73 |
| 2028-09-15 | 13k | 3k | 0.23 | 15 |
| 2028-12-15 | 23k | 5k | 0.22 | 160 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.