Delayed CBOE data, snapshot 2026-08-18. Spot $19.6.
Put/Call (OI)
0.54
347k P / 642k C
Put/Call (Volume)
0.73
14k P / 19k C today
30d ATM IV
60%
annualized implied move
Call wall
$40
106k contracts
Put wall
$10
111k contracts
Tail hedging
0.7×
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 | 95k | 40k | 0.42 | 10k |
| 2026-08-28 | 6k | 4k | 0.66 | 2k |
| 2026-09-04 | 9k | 970 | 0.11 | 1k |
| 2026-09-11 | 1k | 455 | 0.31 | 650 |
| 2026-09-18 | 18k | 6k | 0.32 | 7k |
| 2026-09-25 | 575 | 296 | 0.51 | 121 |
| 2026-10-02 | 37 | 0 | 0.00 | 125 |
| 2026-10-16 | 147k | 20k | 0.13 | 2k |
| 2026-12-18 | 168k | 61k | 0.36 | 2k |
| 2027-01-15 | 134k | 113k | 0.84 | 2k |
| 2027-03-19 | 16k | 5k | 0.28 | 587 |
| 2027-06-17 | 4k | 8k | 2.18 | 1k |
| 2028-01-21 | 41k | 90k | 2.16 | 5k |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.