COST Options Chain Analysis

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

Spot $919.99 at that close. Nothing on this page comes from the session in progress.

Put/Call (OI)

0.91

147k P / 162k C

Put/Call (Volume)

0.84

16k P / 19k C that session

30d ATM IV

19%

annualized implied move

Call wall

$1,000

11k contracts

Put wall

$900

9k contracts

Tail hedging

0.7×

deep-OTM puts vs calls

What the positioning says

●Call wall at $1,000 (11k contracts), 9% above spot — the upside strike the crowd is already parked on; often acts as near-term resistance.
●Put wall at $900 (9k contracts), 2% below spot — the hedge floor; often acts as support.
●30-day ATM implied volatility is 19% — calm pricing; option premium is cheap.

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	10k	10k	1.05	9k
2026-10-16	22k	18k	0.85	4k
2026-10-23	5k	6k	1.12	1k
2026-10-30	4k	6k	1.67	2k
2026-11-06	2k	4k	1.95	1k
2026-11-13	14	46	3.29	201
2026-11-20	12k	13k	1.04	3k
2026-12-18	15k	14k	0.94	684
2027-01-15	26k	23k	0.89	663
2027-02-19	3k	3k	1.12	104
2027-03-19	5k	7k	1.48	250
2027-04-16	569	1k	2.48	91
2027-06-17	5k	5k	1.09	97
2027-09-17	2k	2k	1.01	194
2028-01-21	10k	7k	0.73	80
2028-06-16	10k	2k	0.22	448
2028-09-15	4k	863	0.21	82
2028-12-15	8k	3k	0.42	475
2029-01-19	646	400	0.62	103

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.