Delayed CBOE data, snapshot 2026-08-18. Spot $78.7.
Put/Call (OI)
0.58
3k P / 5k C
Put/Call (Volume)
0.90
9 P / 10 C today
30d ATM IV
45%
annualized implied move
Call wall
$90
1k contracts
Put wall
$65
632 contracts
Tail hedging
0.5×
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 | 3k | 2k | 0.90 | 11 |
| 2026-09-18 | 1k | 215 | 0.16 | 8 |
| 2026-12-18 | 64 | 84 | 1.31 | 0 |
| 2027-01-15 | 1k | 220 | 0.21 | 0 |
| 2027-03-19 | 4 | 5 | 1.25 | 0 |
| 2028-01-21 | 117 | 35 | 0.30 | 0 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.