Delayed CBOE data, snapshot 2026-08-18. Spot $18.31.
Put/Call (OI)
1.00
1.0M P / 1.0M C
Put/Call (Volume)
0.17
8k P / 50k C today
30d ATM IV
29%
annualized implied move
Call wall
$20
260k contracts
Put wall
$10
186k contracts
Tail hedging
1.4×
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 | 148k | 123k | 0.83 | 6k |
| 2026-08-28 | 6k | 8k | 1.27 | 16k |
| 2026-09-04 | 3k | 667 | 0.27 | 628 |
| 2026-09-11 | 1k | 2k | 2.07 | 1k |
| 2026-09-18 | 241k | 169k | 0.70 | 22k |
| 2026-09-25 | 3k | 447 | 0.18 | 417 |
| 2026-10-02 | 3k | 2k | 0.84 | 0 |
| 2026-10-16 | 51k | 44k | 0.85 | 2k |
| 2026-11-20 | 35k | 44k | 1.26 | 1k |
| 2026-12-18 | 107k | 197k | 1.85 | 764 |
| 2027-01-15 | 221k | 336k | 1.52 | 6k |
| 2027-02-19 | 4k | 2k | 0.49 | 53 |
| 2027-03-19 | 37k | 39k | 1.08 | 1k |
| 2027-06-17 | 23k | 15k | 0.63 | 40 |
| 2027-12-17 | 80k | 27k | 0.34 | 48 |
| 2028-01-21 | 66k | 22k | 0.33 | 480 |
| 2028-02-18 | 6k | 6k | 0.87 | 171 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.