Delayed CBOE data, snapshot 2026-08-13. Spot $20.81.
Put/Call (OI)
0.23
7k P / 33k C
Put/Call (Volume)
1.79
127 P / 71 C today
30d ATM IV
20%
annualized implied move
Call wall
$22.5
20k contracts
Put wall
$15
3k contracts
Tail hedging
2.6×
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.
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 | 16k | 548 | 0.03 | 1 |
| 2026-09-18 | 228 | 81 | 0.36 | 42 |
| 2026-10-16 | 5k | 517 | 0.11 | 17 |
| 2026-12-18 | 5k | 2k | 0.30 | 2 |
| 2027-01-15 | 3k | 2k | 0.70 | 134 |
| 2028-01-21 | 3k | 3k | 0.73 | 2 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.