As of previous close (2026-09-04) · OPRA historical data
Spot $20.76 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.75
373k P / 497k C
Put/Call (Volume)
0.60
9k P / 15k C that session
30d ATM IV
62%
annualized implied move
Call wall
$25
42k contracts
Put wall
$10
220k contracts
Tail hedging
1.3×
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 2026-10-02. 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 |
|---|---|---|---|---|
| 2026-10-09 | 185 | 90 | 0.49 | 235 |
| 2026-10-16 | 10k | 2k | 0.24 | 1k |
| 2026-10-23 | 207 | 20 | 0.10 | 56 |
| 2026-12-18 | 34k | 17k | 0.50 | 1k |
| 2027-01-15 | 179k | 115k | 0.64 | 503 |
| 2027-03-19 | 32k | 7k | 0.21 | 256 |
| 2028-01-21 | 71k | 176k | 2.49 | 4k |
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.