Delayed CBOE data, snapshot 2026-08-18. Spot $188.46.
Put/Call (OI)
1.09
85k P / 78k C
Put/Call (Volume)
0.31
203 P / 646 C today
30d ATM IV
25%
annualized implied move
Call wall
$190
8k contracts
Put wall
$120
15k contracts
Tail hedging
24.6×
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 | 2k | 0.41 | 341 |
| 2026-08-28 | 84 | 107 | 1.27 | 92 |
| 2026-09-04 | 453 | 18 | 0.04 | 2 |
| 2026-09-11 | 17 | 79 | 4.65 | 2 |
| 2026-09-18 | 9k | 7k | 0.77 | 116 |
| 2026-09-25 | 5 | 51 | 10.20 | 5 |
| 2026-10-02 | 0 | 1 | — | 0 |
| 2026-10-16 | 418 | 2k | 5.44 | 9 |
| 2026-11-20 | 1 | 103 | 103.00 | 83 |
| 2026-12-18 | 11k | 8k | 0.75 | 4 |
| 2027-01-15 | 47k | 53k | 1.13 | 157 |
| 2027-03-19 | 315 | 858 | 2.72 | 11 |
| 2027-06-17 | 254 | 213 | 0.84 | 16 |
| 2028-01-21 | 4k | 8k | 1.98 | 9 |
| 2028-06-16 | 28 | 3k | 116.46 | 2 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.