Cboe Global Markets (CBOE) Options Chain

CBOE: CBOEFinanceInvestment Bankers/Brokers/ServiceUSD

304.16+10.08 (+3.43%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 23, 2026
Days to expiration: 12
Share price: $304.16
Put/call ratio (OI): 0.81
Put/call ratio (volume): 0.42
ATM implied volatility: 46.7%
Expected move: ±$25.73
Open interest (C / P): 602 / 486

CBOE options summary

The CBOE options chain for the October 23, 2026 expiration lists 22 call and 26 put contracts, with 12 days until expiration. Open interest stands at 602 calls and 486 puts, a put/call ratio of 0.81, which is fairly balanced between calls and puts. At-the-money implied volatility near the $305.00 strike is 46.7%, which implies the market expects a move of about ±$25.73 (8.5%) in Cboe Global Markets stock by expiration.

The most open interest sits at the $290.00 call (227 contracts) and the $295.00 put (120 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

CBOE options chain · October 23, 2026

CBOE calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	81.30	—	—	190.00	—	—	—	—	—	—
—	—	—	77.50	—	—	200.00	—	—	—	—	—	—
—	—	—	—	—	—	205.00	0.00	1.90	0.28	120.6%	1	6
—	—	—	—	—	—	210.00	0.00	1.95	0.76	114.8%	2	5
—	—	—	—	—	—	215.00	0.00	1.95	0.95	108.7%	2	28
—	—	—	—	—	—	220.00	0.00	1.75	0.98	100.4%	1	18
1	—	98.8%	49.70	78.10	82.40	225.00	0.00	2.05	0.46	97.6%	2	24
—	—	—	—	—	—	230.00	0.00	2.10	0.90	92.2%	3	18
—	—	—	—	—	—	235.00	0.00	1.45	1.25	80.1%	1	11
—	—	—	—	—	—	240.00	0.00	2.25	0.40	81.8%	2	11
—	—	—	—	—	—	245.00	0.00	2.30	1.17	76.4%	3	9
—	—	—	—	—	—	250.00	0.10	1.55	0.15	65.6%	4	21
—	—	—	—	—	—	252.50	—	—	2.29	—	—	—
1	1	64.1%	11.90	48.60	51.90	255.00	0.00	1.70	0.28	60.6%	5	17
2	2	61.6%	12.00	43.80	47.20	260.00	0.05	1.35	0.47	52.9%	3	43
1	—	55.3%	23.30	39.00	41.90	265.00	0.05	1.55	0.60	58.1%	7	16
—	—	—	—	—	—	267.50	—	—	1.54	—	—	—
23	2	54.4%	37.00	34.20	37.70	270.00	0.05	2.35	0.75	59.2%	2	8
—	—	—	26.00	—	—	272.50	—	—	6.76	—	—	—
21	1	50.8%	32.80	29.60	32.90	275.00	0.10	1.85	4.30	48.8%	1	13
20	2	58.6%	15.75	25.00	28.40	280.00	0.45	3.10	1.40	51.4%	5	92
220	1	55.0%	23.65	20.70	24.10	285.00	0.80	4.10	1.98	50.4%	1	10
—	—	—	6.20	—	—	287.50	—	—	—	—	—	—
227	10	52.3%	18.33	16.50	20.10	290.00	1.60	3.90	3.00	41.7%	3	10
23	6	49.8%	13.45	12.90	16.40	295.00	3.00	6.10	4.20	44.5%	57	120
13	19	49.3%	12.20	9.50	13.40	300.00	—	—	—	—	—	—
CBOE $304.16
23	200	48.0%	8.90	7.20	10.60	305.00	7.20	10.80	9.00	45.3%	4	6
22	13	47.9%	6.30	5.00	8.40	310.00	—	—	—	—	—	—
4	2	47.6%	4.80	3.10	6.50	315.00	—	—	—	—	—	—
0	1	46.0%	2.50	0.80	3.50	325.00	—	—	54.90	—	—	—
0	—	47.8%	1.00	0.15	2.85	330.00	—	—	51.90	—	—	—
1	1	49.0%	1.30	0.05	2.25	335.00	—	—	—	—	—	—
—	—	—	—	—	—	340.00	—	—	69.90	—	—	—
0	—	62.7%	0.62	0.00	2.10	365.00	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the CBOE put/call ratio?

For the October 23, 2026 expiration, the CBOE put/call ratio based on open interest is 0.81 (486 puts vs 602 calls), and 0.42 based on today's volume. A ratio above 1 means more puts than calls.

What is CBOE's implied volatility?

At-the-money implied volatility for CBOE options expiring October 23, 2026 is about 46.7%, an annualized estimate of how much the market expects Cboe Global Markets stock to move.

How many CBOE option expiration dates are there?

CBOE has 14 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.