As of previous close (2026-10-16) · OPRA historical data
Spot $171.47 at that close. Nothing on this page comes from the session in progress.
Put/Call (OI)
0.95
481k P / 506k C
Put/Call (Volume)
0.92
41k P / 45k C that session
30d ATM IV
56%
annualized implied move
Call wall
$200
65k contracts
Put wall
$160
42k contracts
Tail hedging
0.7×
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 2026-11-13. 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 |
|---|---|---|---|---|
| 2026-10-23 | 18k | 8k | 0.45 | 26k |
| 2026-10-30 | 12k | 11k | 0.89 | 5k |
| 2026-11-06 | 4k | 4k | 1.01 | 881 |
| 2026-11-13 | 1k | 2k | 1.27 | 748 |
| 2026-11-20 | 43k | 48k | 1.10 | 5k |
| 2026-11-27 | 281 | 305 | 1.09 | 122 |
| 2026-12-18 | 73k | 60k | 0.83 | 3k |
| 2027-01-15 | 118k | 117k | 1.00 | 5k |
| 2027-02-19 | 15k | 12k | 0.79 | 2k |
| 2027-03-19 | 25k | 28k | 1.13 | 1k |
| 2027-04-16 | 3k | 4k | 1.17 | 184 |
| 2027-06-17 | 41k | 60k | 1.48 | 996 |
| 2027-09-17 | 4k | 11k | 2.68 | 1k |
| 2028-01-21 | 38k | 44k | 1.16 | 407 |
| 2028-06-16 | 4k | 2k | 0.55 | 291 |
| 2028-12-15 | 7k | 9k | 1.19 | 17 |
| 2029-01-19 | 1k | 3k | 2.28 | 17 |
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.