Delayed CBOE data, snapshot 2026-08-18. Spot $45.33.
Put/Call (OI)
0.69
58k P / 83k C
Put/Call (Volume)
0.72
978 P / 1k C today
30d ATM IV
29%
annualized implied move
Call wall
$50
7k contracts
Put wall
$45
8k 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 | 7k | 9k | 1.20 | 2k |
| 2026-08-28 | 1k | 2k | 1.69 | 181 |
| 2026-09-04 | 999 | 706 | 0.71 | 47 |
| 2026-09-11 | 499 | 106 | 0.21 | 27 |
| 2026-09-18 | 19k | 20k | 1.03 | 182 |
| 2026-09-25 | 79 | 84 | 1.06 | 56 |
| 2026-10-02 | 50 | 0 | 0.00 | 53 |
| 2026-10-16 | 2k | 2k | 1.07 | 74 |
| 2026-12-18 | 24k | 8k | 0.32 | 46 |
| 2027-01-15 | 12k | 11k | 0.88 | 9 |
| 2027-03-19 | 3k | 1k | 0.32 | 28 |
| 2027-06-17 | 3k | 2k | 0.60 | 7 |
| 2028-01-21 | 8k | 2k | 0.25 | 9 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.