Delayed CBOE data, snapshot 2026-08-18. Spot $216.83.
Put/Call (OI)
1.05
63k P / 60k C
Put/Call (Volume)
0.61
3k P / 5k C today
30d ATM IV
33%
annualized implied move
Call wall
$250
7k contracts
Put wall
$195
10k contracts
Tail hedging
0.8×
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 | 10k | 12k | 1.14 | 3k |
| 2026-08-28 | 606 | 1k | 1.88 | 290 |
| 2026-09-04 | 330 | 328 | 0.99 | 47 |
| 2026-09-11 | 154 | 416 | 2.70 | 45 |
| 2026-09-18 | 19k | 19k | 1.03 | 4k |
| 2026-09-25 | 176 | 59 | 0.34 | 82 |
| 2026-10-02 | 0 | 5 | — | 77 |
| 2026-10-16 | 5k | 9k | 1.76 | 230 |
| 2026-12-18 | 5k | 4k | 0.84 | 271 |
| 2027-01-15 | 10k | 11k | 1.03 | 74 |
| 2027-03-19 | 2k | 2k | 0.92 | 17 |
| 2027-06-17 | 4k | 2k | 0.48 | 99 |
| 2028-01-21 | 3k | 2k | 0.69 | 68 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.