Delayed CBOE data, snapshot 2026-08-18. Spot $45.2.
Put/Call (OI)
0.79
240k P / 305k C
Put/Call (Volume)
0.92
9k P / 10k C today
30d ATM IV
52%
annualized implied move
Call wall
$50
19k contracts
Put wall
$20
47k contracts
Tail hedging
3.2×
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.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 67k | 61k | 0.91 | 8k |
| 2026-08-28 | 4k | 5k | 1.18 | 2k |
| 2026-09-04 | 2k | 797 | 0.39 | 453 |
| 2026-09-11 | 765 | 518 | 0.68 | 1k |
| 2026-09-18 | 13k | 21k | 1.63 | 2k |
| 2026-09-25 | 1k | 114 | 0.10 | 552 |
| 2026-10-02 | 63 | 71 | 1.13 | 30 |
| 2026-10-16 | 0 | 0 | — | 1k |
| 2026-11-20 | 27k | 11k | 0.43 | 771 |
| 2027-01-15 | 98k | 93k | 0.95 | 610 |
| 2027-02-19 | 6k | 14k | 2.18 | 665 |
| 2027-05-21 | 5k | 2k | 0.46 | 88 |
| 2027-12-17 | 39k | 16k | 0.40 | 223 |
| 2028-01-21 | 42k | 16k | 0.38 | 748 |
| 2028-12-15 | 1k | 425 | 0.40 | 14 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.