Delayed CBOE data, snapshot 2026-08-18. Spot $41.84.
Put/Call (OI)
1.00
69k P / 68k C
Put/Call (Volume)
0.08
235 P / 3k C today
30d ATM IV
36%
annualized implied move
Call wall
$43
8k contracts
Put wall
$38
17k contracts
Tail hedging
3.3×
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.
| Expiry | Call OI | Put OI | P/C | Volume today |
|---|---|---|---|---|
| 2026-08-21 | 21k | 37k | 1.78 | 660 |
| 2026-09-18 | 3k | 8k | 2.45 | 1k |
| 2026-10-16 | 20k | 10k | 0.50 | 1k |
| 2027-01-15 | 20k | 11k | 0.56 | 331 |
| 2027-03-19 | 32 | 76 | 2.38 | 15 |
| 2027-05-21 | 3 | 218 | 72.67 | 0 |
| 2027-08-20 | 4 | 7 | 1.75 | 0 |
| 2027-11-19 | 1 | 4 | 4.00 | 0 |
| 2028-01-21 | 5k | 3k | 0.52 | 1 |
Source: CBOE delayed quotes, refreshed daily after US market close. Open interest is exchange-reported and lags one session. Research, not investment advice.