Delayed CBOE data, snapshot 2026-08-18. Spot $17.94.
Put/Call (OI)
0.74
34k P / 45k C
Put/Call (Volume)
0.73
13k P / 18k C today
30d ATM IV
23%
annualized implied move
Call wall
$20
15k contracts
Put wall
$17
5k 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.
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 | 13k | 3k | 0.27 | 158 |
| 2026-09-18 | 2k | 8k | 3.82 | 275 |
| 2026-10-16 | 5k | 10k | 2.06 | 30k |
| 2026-11-20 | 3k | 1k | 0.42 | 23 |
| 2026-12-18 | 5k | 3k | 0.65 | 49 |
| 2027-01-15 | 16k | 8k | 0.50 | 237 |
| 2028-01-21 | 2k | 522 | 0.23 | 1k |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.