As of previous close (2026-08-27) · OPRA historical data
Spot $40.85 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.66
26k P / 40k C
Put/Call (Volume)
0.69
212 P / 308 C that session
30d ATM IV
58%
annualized implied move
Call wall
$45
4k contracts
Put wall
$40
3k contracts
Tail hedging
0.3×
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 2026-09-25. 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 | 0 | 0 | — | 11 |
| 2026-10-16 | 467 | 482 | 1.03 | 28 |
| 2026-11-20 | 8k | 6k | 0.78 | 122 |
| 2027-01-15 | 15k | 9k | 0.57 | 50 |
| 2027-02-19 | 3k | 839 | 0.30 | 37 |
| 2028-01-21 | 5k | 3k | 0.52 | 31 |
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.