CI Options Chain Analysis

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

Spot $270.33 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.54

30k P / 55k C

Put/Call (Volume)

0.60

520 P / 861 C that session

30d ATM IV

32%

annualized implied move

Call wall

$280

5k contracts

Put wall

$260

6k contracts

Tail hedging

0.4×

deep-OTM puts vs calls

What the positioning says

●Bullish positioning: only 0.54 puts per call outstanding.
●Call wall at $280 (5k contracts), 4% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $260 (6k contracts), 4% below spot — the hedge floor; often acts as support.
●Deep-OTM call OI is 2.4× 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 2026-10-30. 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
2026-10-09	618	391	0.63	412
2026-10-16	3k	10k	3.21	137
2026-10-23	220	147	0.67	45
2026-10-30	486	183	0.38	41
2026-11-06	30	52	1.73	18
2026-11-13	1	2	2.00	5
2026-11-20	591	643	1.09	167
2026-12-18	3k	2k	0.85	36
2027-01-15	31k	8k	0.24	118
2027-03-19	2k	2k	1.23	6
2027-04-16	102	99	0.97	0
2027-06-17	1k	625	0.62	33
2027-09-17	96	501	5.22	20
2028-01-21	8k	2k	0.28	8
2029-01-19	1k	37	0.03	1

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.