Delayed CBOE data, snapshot 2026-08-18. Spot $122.98.
Put/Call (OI)
0.55
78k P / 142k C
Put/Call (Volume)
0.47
2k P / 4k C today
30d ATM IV
46%
annualized implied move
Call wall
$140
14k contracts
Put wall
$100
8k contracts
Tail hedging
0.5×
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 | 28k | 12k | 0.43 | 2k |
| 2026-08-28 | 1k | 1k | 1.03 | 839 |
| 2026-09-04 | 263 | 398 | 1.51 | 369 |
| 2026-09-11 | 305 | 163 | 0.53 | 150 |
| 2026-09-18 | 15k | 15k | 0.98 | 842 |
| 2026-09-25 | 695 | 969 | 1.39 | 50 |
| 2026-10-02 | 3 | 0 | 0.00 | 2 |
| 2026-10-16 | 990 | 437 | 0.44 | 473 |
| 2026-11-20 | 4k | 6k | 1.38 | 27 |
| 2026-12-18 | 6k | 3k | 0.43 | 676 |
| 2027-01-15 | 25k | 15k | 0.60 | 168 |
| 2027-02-19 | 41 | 232 | 5.66 | 0 |
| 2027-03-19 | 1k | 430 | 0.33 | 11 |
| 2027-06-17 | 2k | 478 | 0.25 | 10 |
| 2027-12-17 | 6k | 2k | 0.36 | 7 |
| 2028-01-21 | 36k | 13k | 0.35 | 25 |
| 2028-12-15 | 14k | 8k | 0.59 | 1k |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.