Delayed CBOE data, snapshot 2026-08-18. Spot $22.18.
Put/Call (OI)
0.38
20k P / 51k C
Put/Call (Volume)
0.49
298 P / 609 C today
30d ATM IV
35%
annualized implied move
Call wall
$25
11k contracts
Put wall
$10
5k contracts
Tail hedging
0.9×
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.
Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 6k | 5k | 0.95 | 62 |
| 2026-09-18 | 1k | 494 | 0.35 | 347 |
| 2026-10-16 | 17k | 2k | 0.14 | 290 |
| 2027-01-15 | 22k | 11k | 0.47 | 197 |
| 2027-03-19 | 107 | 0 | 0.00 | 2 |
| 2027-05-21 | 151 | 2 | 0.01 | 0 |
| 2027-08-20 | 2 | 51 | 25.50 | 0 |
| 2027-11-19 | 4 | 1 | 0.25 | 0 |
| 2028-01-21 | 4k | 717 | 0.17 | 9 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.