Delayed CBOE data, snapshot 2026-08-18. Spot $36.09.
Put/Call (OI)
1.52
5k P / 4k C
Put/Call (Volume)
0.00
0 P / 15 C today
30d ATM IV
29%
annualized implied move
Call wall
$40
2k contracts
Put wall
$30
3k contracts
Tail hedging
1.6×
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 | 1k | 2k | 1.44 | 0 |
| 2026-09-18 | 26 | 607 | 23.35 | 0 |
| 2026-10-16 | 1k | 1k | 0.89 | 0 |
| 2027-01-15 | 1k | 2k | 1.73 | 15 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.