Delayed CBOE data, snapshot 2026-08-18. Spot $36.46.
Put/Call (OI)
0.36
107k P / 300k C
Put/Call (Volume)
1.43
4k P / 3k C today
30d ATM IV
35%
annualized implied move
Call wall
$41
63k contracts
Put wall
$27
15k contracts
Tail hedging
1.0×
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 | 34k | 5k | 0.14 | 4k |
| 2026-08-28 | 3k | 662 | 0.20 | 347 |
| 2026-09-04 | 251 | 145 | 0.58 | 291 |
| 2026-09-11 | 317 | 171 | 0.54 | 620 |
| 2026-09-18 | 147k | 36k | 0.25 | 265 |
| 2026-09-25 | 44 | 144 | 3.27 | 0 |
| 2026-10-02 | 2 | 24 | 12.00 | 172 |
| 2026-12-18 | 33k | 22k | 0.68 | 555 |
| 2027-01-15 | 65k | 33k | 0.51 | 310 |
| 2027-03-19 | 4k | 3k | 0.83 | 166 |
| 2028-01-21 | 13k | 6k | 0.46 | 385 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.