As of previous close (2026-10-01) · OPRA historical data
Spot $32.14 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.73
963k P / 1.3M C
Put/Call (Volume)
0.85
258k P / 303k C that session
30d ATM IV
56%
annualized implied move
Call wall
$40
155k contracts
Put wall
$30
84k contracts
Tail hedging
0.0×
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 2026-10-30. 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 that session |
|---|---|---|---|---|
| 2026-10-02 | 85k | 64k | 0.75 | 292k |
| 2026-10-09 | 26k | 20k | 0.77 | 53k |
| 2026-10-16 | 197k | 143k | 0.73 | 109k |
| 2026-10-23 | 9k | 8k | 0.83 | 7k |
| 2026-10-30 | 9k | 4k | 0.45 | 9k |
| 2026-11-06 | 930 | 5k | 5.89 | 6k |
| 2026-11-13 | 0 | 0 | — | 4k |
| 2026-11-20 | 78k | 67k | 0.86 | 29k |
| 2026-12-18 | 187k | 96k | 0.51 | 12k |
| 2027-01-15 | 295k | 145k | 0.49 | 20k |
| 2027-03-19 | 85k | 54k | 0.63 | 4k |
| 2027-04-16 | 5k | 6k | 1.09 | 3k |
| 2027-06-17 | 80k | 90k | 1.12 | 2k |
| 2027-09-17 | 15k | 21k | 1.44 | 2k |
| 2027-12-17 | 60k | 58k | 0.96 | 2k |
| 2028-01-21 | 139k | 122k | 0.87 | 4k |
| 2028-06-16 | 22k | 38k | 1.72 | 442 |
| 2028-12-15 | 24k | 16k | 0.67 | 1k |
| 2029-01-19 | 4k | 8k | 1.93 | 1k |
Source: Cboe end-of-session option chains, summarized after each US market close and published from the following trading day — OPRA historical data. Under the OPRA plan options data becomes historical, and freely publishable, at the opening of the next trading session; data from the session in progress is never displayed or served here. Open interest is exchange-reported once a day. Research, not investment advice.