Delayed CBOE data, snapshot 2026-08-18. Spot $123.29.
Put/Call (OI)
1.14
2k P / 2k C
Put/Call (Volume)
0.02
2 P / 120 C today
30d ATM IV
21%
annualized implied move
Call wall
$125
2k contracts
Put wall
$115
2k contracts
Tail hedging
4.5×
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 | 242 | 801 | 3.31 | 116 |
| 2026-09-18 | 2k | 1k | 0.75 | 5 |
| 2026-10-16 | 0 | 0 | — | 0 |
| 2026-12-18 | 77 | 213 | 2.77 | 0 |
| 2027-03-19 | 12 | 22 | 1.83 | 1 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.