CMI Options Chain Analysis

As of previous close (2026-10-02) · OPRA historical data

Spot $529.73 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.83

8k P / 9k C

Put/Call (Volume)

0.25

168 P / 665 C that session

30d ATM IV

30%

annualized implied move

Call wall

$620

505 contracts

Put wall

$510

822 contracts

Tail hedging

0.3×

deep-OTM puts vs calls

What the positioning says

●Call wall at $620 (505 contracts), 17% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $510 (822 contracts), 4% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 3.3× deep-OTM put OI — speculative upside positioning dominates the tails.

Open interest by strike

All expiries combined. Amber lines mark the call and put walls; the dashed line is spot.

IV term structure

At-the-money implied volatility per expiry.

Volatility smile

IV by strike — expiry 2026-10-16. A steep left side = expensive downside protection.

30-day implied volatility history

Daily ATM IV (~30 DTE bucket) collected since March 2026. Rising IV into an event = the market bracing; collapsing IV after = the crush.

Open interest by expiry

Expiry	Call OI	Put OI	P/C	Volume that session
2026-10-16	2k	2k	0.79	493
2026-11-20	446	1k	2.94	107
2026-12-18	3k	2k	0.66	155
2027-03-19	2k	2k	0.88	35
2027-06-17	944	590	0.63	32
2027-09-17	603	313	0.52	11

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.