As of previous close (2026-09-11) · OPRA historical data
Spot $22.8 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
1.24
630k P / 508k C
Put/Call (Volume)
0.42
10k P / 23k C that session
30d ATM IV
46%
annualized implied move
Call wall
$30
70k contracts
Put wall
$20
58k 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 2026-10-09. 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 |
|---|---|---|---|---|
| 2026-09-18 | 115k | 178k | 1.54 | 10k |
| 2026-09-25 | 9k | 3k | 0.40 | 3k |
| 2026-10-02 | 6k | 5k | 0.83 | 1k |
| 2026-10-09 | 3k | 641 | 0.25 | 1k |
| 2026-10-16 | 39k | 38k | 0.98 | 4k |
| 2026-10-23 | 431 | 278 | 0.65 | 121 |
| 2026-10-30 | 0 | 7 | — | 83 |
| 2026-11-20 | 25k | 50k | 2.01 | 990 |
| 2026-12-18 | 89k | 117k | 1.32 | 2k |
| 2027-01-15 | 123k | 130k | 1.06 | 3k |
| 2027-03-19 | 12k | 27k | 2.19 | 270 |
| 2027-04-16 | 2k | 2k | 0.63 | 75 |
| 2027-06-17 | 19k | 15k | 0.77 | 469 |
| 2027-09-17 | 3k | 11k | 3.63 | 72 |
| 2027-12-17 | 16k | 14k | 0.89 | 137 |
| 2028-01-21 | 28k | 34k | 1.21 | 476 |
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.