MarketAxess (MKTX) Options Chain

NASDAQ: MKTXFinanceInvestment Bankers/Brokers/ServiceUSD

164.58+0.27 (+0.16%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $164.58
Put/call ratio (OI): 1.12
Put/call ratio (volume): 0.52
ATM implied volatility: 16.8%
Expected move: ±$9.14
Open interest (C / P): 395 / 442

MKTX options summary

The MKTX options chain for the November 20, 2026 expiration lists 27 call and 22 put contracts, with 40 days until expiration. Open interest stands at 395 calls and 442 puts, a put/call ratio of 1.12, which is fairly balanced between calls and puts. At-the-money implied volatility near the $165.00 strike is 16.8%, which implies the market expects a move of about ±$9.14 (5.6%) in MarketAxess stock by expiration.

The most open interest sits at the $160.00 call (167 contracts) and the $115.00 put (113 contracts).

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

MKTX options chain · November 20, 2026

MKTX 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
—	—	—	—	—	—	65.00	0.00	2.45	0.60	169.7%	—	1
—	—	—	—	—	—	70.00	0.00	2.60	0.90	159.5%	—	4
—	—	—	—	—	—	75.00	0.00	0.05	1.00	84.4%	3	8
0	2	—	41.70	0.00	0.00	80.00	0.00	0.00	1.35	50.0%	—	0
—	—	—	—	—	—	85.00	0.00	0.10	0.05	77.0%	10	17
5	1	88.1%	73.90	72.60	77.10	90.00	0.00	0.10	2.55	70.7%	1	16
3	—	101.0%	22.72	66.40	70.50	95.00	0.00	0.20	4.00	70.5%	1	22
0	1	—	63.06	0.00	0.00	100.00	0.00	0.15	0.10	62.3%	1	83
0	1	—	58.00	0.00	0.00	105.00	0.00	0.00	0.10	25.0%	1	0
1	1	81.3%	15.00	51.50	55.70	110.00	0.00	0.20	6.14	53.3%	1	26
—	—	—	—	—	—	115.00	0.00	0.75	0.10	59.0%	1	113
9	3	74.6%	43.20	42.10	46.30	120.00	0.00	2.35	0.05	67.6%	1	24
20	1	55.5%	39.42	38.70	42.10	125.00	14.50	17.90	16.40	169.6%	1	9
16	10	60.8%	33.80	33.00	36.40	130.00	0.00	0.35	0.30	41.0%	4	18
0	1	—	28.55	0.00	0.00	135.00	0.00	0.00	0.25	12.5%	1	0
28	20	47.3%	23.78	22.20	26.50	140.00	0.00	0.60	0.05	33.9%	1	50
7	2	38.5%	4.60	17.10	21.30	145.00	0.00	2.35	0.30	43.2%	2	23
0	1	—	12.78	0.00	0.00	150.00	0.00	0.00	0.25	6.3%	1	0
8	1	25.4%	1.55	7.40	11.50	155.00	39.60	42.90	17.04	219.7%	3	3
167	1	21.0%	4.40	3.10	7.20	160.00	0.00	1.45	1.35	14.9%	1	25
MKTX $164.58
29	2	15.9%	0.30	0.00	3.30	165.00	0.05	4.10	3.30	17.6%	1	0
72	1	5.5%	0.05	0.00	0.05	170.00	—	—	—	—	—	—
6	2	14.4%	0.20	0.00	0.40	175.00	—	—	—	—	—	—
9	5	32.4%	0.18	0.00	2.15	180.00	—	—	—	—	—	—
0	3	6.3%	0.22	0.00	0.00	185.00	0.00	0.00	49.10	—	—	0
1	—	52.8%	4.90	0.00	2.85	195.00	—	—	—	—	—	—
4	3	52.5%	0.05	0.00	2.15	200.00	—	—	—	—	—	—
2	1	52.6%	2.20	0.00	2.50	210.00	—	—	—	—	—	—
0	1	25.0%	0.29	0.00	0.00	230.00	—	—	—	—	—	—
4	1	59.0%	0.75	0.00	0.85	240.00	—	—	—	—	—	—
2	1	76.6%	2.65	0.00	2.25	250.00	—	—	—	—	—	—
2	1	81.6%	1.95	0.00	2.20	260.00	—	—	—	—	—	—

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 MKTX put/call ratio?

For the November 20, 2026 expiration, the MKTX put/call ratio based on open interest is 1.12 (442 puts vs 395 calls), and 0.52 based on today's volume. A ratio above 1 means more puts than calls.

What is MKTX's implied volatility?

At-the-money implied volatility for MKTX options expiring November 20, 2026 is about 16.8%, an annualized estimate of how much the market expects MarketAxess stock to move.

How many MKTX option expiration dates are there?

MKTX has 4 listed expiration dates, from Oct 16, 2026 to May 21, 2027.

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.