MKTX · Marketaxess Holdings Inc

Track MKTX — free

$162.57 -0.03 (-0.02%) At close · Aug 14

Market Cap

$5.72B

35.19M

Options Chain

Underlying $162.57 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 64 contracts · mixed snapshot sessions · Jan 16, 2026–Aug 13, 2026; 11 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 5d Sep 18 33d Nov 20 96d Feb 19 187d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
1	2	246.9%	0.993	$38.05		$0.10	-0.017	289.6%	1	2
Call · $80 In the money Snapshot session Jul 27, 2026 Last $38.05 Breakeven $118.05 Implied vol 246.9% Delta 0.993 ≈99% ITM Gamma 0 Theta -0.084 Vega 0.003 Open interest 1 Model this call Put · $80 Snapshot session Jul 30, 2026 Last $0.10 Breakeven $79.90 Implied vol 289.6% Delta -0.017 ≈2% ITM Gamma 0.001 Theta -0.213 Vega 0.007 Open interest 2 Model this put
0	—	212.3%	0.995	—		—	-0.018	268%	—	0
Call · $85 In the money Snapshot session Unknown Last — Breakeven — Implied vol 212.3% Delta 0.995 ≈99% ITM Gamma 0 Theta -0.055 Vega 0.003 Open interest 0 Model this call Put · $85 Snapshot session Unknown Last — Breakeven — Implied vol 268% Delta -0.018 ≈2% ITM Gamma 0.001 Theta -0.211 Vega 0.008 Open interest 0 Model this put
0	—	194.7%	0.994	—		$0.43	-0.02	247.6%	4	8
Call · $90 In the money Snapshot session Unknown Last — Breakeven — Implied vol 194.7% Delta 0.994 ≈99% ITM Gamma 0 Theta -0.054 Vega 0.003 Open interest 0 Model this call Put · $90 Snapshot session Jul 22, 2026 Last $0.43 Breakeven $89.57 Implied vol 247.6% Delta -0.02 ≈2% ITM Gamma 0.001 Theta -0.21 Vega 0.008 Open interest 8 Model this put
4	8	191.9%	0.991	$21.50		$0.04	-0.019	219.1%	2	37
Call · $95 In the money Snapshot session Jul 15, 2026 Last $21.50 Breakeven $116.50 Implied vol 191.9% Delta 0.991 ≈99% ITM Gamma 0.001 Theta -0.081 Vega 0.008 Open interest 4 Model this call Put · $95 Snapshot session Jul 30, 2026 Last $0.04 Breakeven $94.96 Implied vol 219.1% Delta -0.019 ≈2% ITM Gamma 0.001 Theta -0.176 Vega 0.008 Open interest 37 Model this put
0	—	174.6%	0.99	—		$0.03	-0.035	228.8%	4	33
Call · $100 In the money Snapshot session Unknown Last — Breakeven — Implied vol 174.6% Delta 0.99 ≈99% ITM Gamma 0.001 Theta -0.079 Vega 0.008 Open interest 0 Model this call Put · $100 Snapshot session Jul 30, 2026 Last $0.03 Breakeven $99.97 Implied vol 228.8% Delta -0.035 ≈3% ITM Gamma 0.002 Theta -0.306 Vega 0.016 Open interest 33 Model this put
0	1	158%	0.989	$10.00		$0.04	-0.055	240.1%	1	71
Call · $105 In the money Snapshot session Jun 30, 2026 Last $10.00 Breakeven $115.00 Implied vol 158% Delta 0.989 ≈99% ITM Gamma 0.001 Theta -0.077 Vega 0.008 Open interest 0 Model this call Put · $105 Snapshot session Jul 30, 2026 Last $0.04 Breakeven $104.96 Implied vol 240.1% Delta -0.055 ≈6% ITM Gamma 0.002 Theta -0.473 Vega 0.029 Open interest 71 Model this put
56	2	142.2%	0.988	$52.60		$0.04	-0.056	213.3%	4	53
Call · $110 In the money Snapshot session Aug 5, 2026 Last $52.60 Breakeven $162.60 Implied vol 142.2% Delta 0.988 ≈99% ITM Gamma 0.001 Theta -0.075 Vega 0.009 Open interest 56 Model this call Put · $110 Snapshot session Jul 30, 2026 Last $0.04 Breakeven $109.96 Implied vol 213.3% Delta -0.056 ≈6% ITM Gamma 0.003 Theta -0.425 Vega 0.03 Open interest 53 Model this put
6	1	127.1%	0.987	$47.50		$0.05	-0.097	238.5%	6	78
Call · $115 In the money Snapshot session Jul 31, 2026 Last $47.50 Breakeven $162.50 Implied vol 127.1% Delta 0.987 ≈99% ITM Gamma 0.001 Theta -0.072 Vega 0.009 Open interest 6 Model this call Put · $115 Snapshot session Jul 30, 2026 Last $0.05 Breakeven $114.95 Implied vol 238.5% Delta -0.097 ≈10% ITM Gamma 0.004 Theta -0.723 Vega 0.031 Open interest 78 Model this put
11	1	112.7%	0.986	$42.40		$0.05	-0.129	243.5%	6	16
Call · $120 In the money Snapshot session Aug 3, 2026 Last $42.40 Breakeven $162.40 Implied vol 112.7% Delta 0.986 ≈99% ITM Gamma 0.001 Theta -0.07 Vega 0.009 Open interest 11 Model this call Put · $120 Snapshot session Jul 30, 2026 Last $0.05 Breakeven $119.95 Implied vol 243.5% Delta -0.129 ≈13% ITM Gamma 0.004 Theta -0.895 Vega 0.047 Open interest 16 Model this put
25	2	98.7%	0.984	$37.67		$0.05	-0.171	264.5%	41	66
Call · $125 In the money Snapshot session Aug 10, 2026 Last $37.67 Breakeven $162.67 Implied vol 98.7% Delta 0.984 ≈98% ITM Gamma 0.002 Theta -0.067 Vega 0.009 Open interest 25 Model this call Put · $125 Snapshot session Aug 12, 2026 Last $0.05 Breakeven $124.95 Implied vol 264.5% Delta -0.171 ≈17% ITM Gamma 0.005 Theta -1.187 Vega 0.048 Open interest 66 Model this put
10	2	85.4%	0.983	$3.40		$0.03	-0.212	283%	3	11
Call · $130 In the money Snapshot session Jul 29, 2026 Last $3.40 Breakeven $133.40 Implied vol 85.4% Delta 0.983 ≈98% ITM Gamma 0.002 Theta -0.065 Vega 0.009 Open interest 10 Model this call Put · $130 Snapshot session Jul 30, 2026 Last $0.03 Breakeven $129.97 Implied vol 283% Delta -0.212 ≈21% ITM Gamma 0.005 Theta -1.438 Vega 0.063 Open interest 11 Model this put
105	2	72.5%	0.98	$27.93		$6.70	-0.252	311.2%	1	3
Call · $135 In the money Snapshot session Aug 11, 2026 Last $27.93 Breakeven $162.93 Implied vol 72.5% Delta 0.98 ≈98% ITM Gamma 0.003 Theta -0.062 Vega 0.01 Open interest 105 Model this call Put · $135 Snapshot session May 12, 2026 Last $6.70 Breakeven $128.30 Implied vol 311.2% Delta -0.252 ≈25% ITM Gamma 0.005 Theta -1.748 Vega 0.064 Open interest 3 Model this put
172	4	60.1%	0.977	$22.80		$27.28	-0.286	338%	1	2
Call · $140 In the money Snapshot session Aug 13, 2026 Last $22.80 Breakeven $162.80 Implied vol 60.1% Delta 0.977 ≈98% ITM Gamma 0.004 Theta -0.059 Vega 0.01 Open interest 172 Model this call Put · $140 Snapshot session Jul 21, 2026 Last $27.28 Breakeven $112.72 Implied vol 338% Delta -0.286 ≈29% ITM Gamma 0.005 Theta -2.041 Vega 0.075 Open interest 2 Model this put
66	94	48.2%	0.973	$18.30		$27.70	-0.315	368.1%	1	4
Call · $145 In the money Snapshot session Jul 30, 2026 Last $18.30 Breakeven $163.30 Implied vol 48.2% Delta 0.973 ≈97% ITM Gamma 0.006 Theta -0.057 Vega 0.01 Open interest 66 Model this call Put · $145 Snapshot session Jun 23, 2026 Last $27.70 Breakeven $117.30 Implied vol 368.1% Delta -0.315 ≈32% ITM Gamma 0.005 Theta -2.296 Vega 0.076 Open interest 4 Model this put
7	6	35.5%	0.965	$13.04		$0.03	-0.34	390.8%	1	4
Call · $150 In the money Snapshot session Jul 30, 2026 Last $13.04 Breakeven $163.04 Implied vol 35.5% Delta 0.965 ≈97% ITM Gamma 0.01 Theta -0.051 Vega 0.02 Open interest 7 Model this call Put · $150 Snapshot session Aug 3, 2026 Last $0.03 Breakeven $149.97 Implied vol 390.8% Delta -0.34 ≈34% ITM Gamma 0.005 Theta -2.509 Vega 0.077 Open interest 4 Model this put
92	130	22.9%	0.95	$7.84		$0.05	-0.064	25.3%	5	105
Call · $155 In the money Snapshot session Aug 7, 2026 Last $7.84 Breakeven $162.84 Implied vol 22.9% Delta 0.95 ≈95% ITM Gamma 0.021 Theta -0.045 Vega 0.021 Open interest 92 Model this call Put · $155 Snapshot session Aug 3, 2026 Last $0.05 Breakeven $154.95 Implied vol 25.3% Delta -0.064 ≈6% ITM Gamma 0.024 Theta -0.056 Vega 0.021 Open interest 105 Model this put
85	130	9.9%	0.901	$2.92		$0.05	-0.084	9.2%	11	69
Call · $160 In the money Snapshot session Aug 7, 2026 Last $2.92 Breakeven $162.92 Implied vol 9.9% Delta 0.901 ≈90% ITM Gamma 0.085 Theta -0.035 Vega 0.036 Open interest 85 Model this call Put · $160 Snapshot session Aug 12, 2026 Last $0.05 Breakeven $159.95 Implied vol 9.2% Delta -0.084 ≈8% ITM Gamma 0.081 Theta -0.024 Vega 0.036 Open interest 69 Model this put
Underlying $162.57
203	4	8.5%	0.09	$0.05		$2.30	-0.737	17.9%	1	32
Call · $165 Snapshot session Aug 7, 2026 Last $0.05 Breakeven $165.05 Implied vol 8.5% Delta 0.09 ≈9% ITM Gamma 0.092 Theta -0.025 Vega 0.038 Open interest 203 Model this call Put · $165 In the money Snapshot session Aug 3, 2026 Last $2.30 Breakeven $162.70 Implied vol 17.9% Delta -0.737 ≈74% ITM Gamma 0.089 Theta -0.099 Vega 0.073 Open interest 32 Model this put
21	2	22.5%	0.061	$0.05		$7.85	-0.808	38.8%	1	2
Call · $170 Snapshot session Aug 3, 2026 Last $0.05 Breakeven $170.05 Implied vol 22.5% Delta 0.061 ≈6% ITM Gamma 0.026 Theta -0.048 Vega 0.022 Open interest 21 Model this call Put · $170 In the money Snapshot session Aug 7, 2026 Last $7.85 Breakeven $162.15 Implied vol 38.8% Delta -0.808 ≈81% ITM Gamma 0.034 Theta -0.181 Vega 0.056 Open interest 2 Model this put
270	17	30.8%	0.03	$0.01		—	-0.872	49.6%	—	50
Call · $175 Snapshot session Jul 30, 2026 Last $0.01 Breakeven $175.01 Implied vol 30.8% Delta 0.03 ≈3% ITM Gamma 0.011 Theta -0.037 Vega 0.011 Open interest 270 Model this call Put · $175 In the money Snapshot session Unknown Last — Breakeven — Implied vol 49.6% Delta -0.872 ≈87% ITM Gamma 0.021 Theta -0.178 Vega 0.038 Open interest 50 Model this put
8	5	69%	0.132	$0.02		$23.60	-0.894	62%	1	0
Call · $180 Snapshot session Jul 31, 2026 Last $0.02 Breakeven $180.02 Implied vol 69% Delta 0.132 ≈13% ITM Gamma 0.015 Theta -0.261 Vega 0.039 Open interest 8 Model this call Put · $180 In the money Snapshot session Apr 22, 2026 Last $23.60 Breakeven $156.40 Implied vol 62% Delta -0.894 ≈89% ITM Gamma 0.014 Theta -0.193 Vega 0.039 Open interest 0 Model this put
4	1	80.9%	0.116	$10.70		$32.22	-0.908	73.9%	1	0
Call · $185 Snapshot session Apr 14, 2026 Last $10.70 Breakeven $195.70 Implied vol 80.9% Delta 0.116 ≈12% ITM Gamma 0.012 Theta -0.276 Vega 0.039 Open interest 4 Model this call Put · $185 In the money Snapshot session Feb 4, 2026 Last $32.22 Breakeven $152.78 Implied vol 73.9% Delta -0.908 ≈91% ITM Gamma 0.011 Theta -0.208 Vega 0.039 Open interest 0 Model this put
86	2	77.2%	0.062	$0.10		$20.50	-0.917	85.6%	1	0
Call · $190 Snapshot session Aug 6, 2026 Last $0.10 Breakeven $190.10 Implied vol 77.2% Delta 0.062 ≈6% ITM Gamma 0.008 Theta -0.166 Vega 0.023 Open interest 86 Model this call Put · $190 In the money Snapshot session Feb 26, 2026 Last $20.50 Breakeven $169.50 Implied vol 85.6% Delta -0.917 ≈92% ITM Gamma 0.009 Theta -0.223 Vega 0.039 Open interest 0 Model this put
5	1	103.6%	0.095	$2.60		—	-0.925	96.7%	—	0
Call · $195 Snapshot session May 1, 2026 Last $2.60 Breakeven $197.60 Implied vol 103.6% Delta 0.095 ≈9% ITM Gamma 0.008 Theta -0.306 Vega 0.04 Open interest 5 Model this call Put · $195 In the money Snapshot session Unknown Last — Breakeven — Implied vol 96.7% Delta -0.925 ≈92% ITM Gamma 0.007 Theta -0.236 Vega 0.023 Open interest 0 Model this put
863	2	88.7%	0.035	$0.05		—	-0.93	105.9%	—	0
Call · $200 Snapshot session Jul 30, 2026 Last $0.05 Breakeven $200.05 Implied vol 88.7% Delta 0.035 ≈4% ITM Gamma 0.004 Theta -0.122 Vega 0.024 Open interest 863 Model this call Put · $200 In the money Snapshot session Unknown Last — Breakeven — Implied vol 105.9% Delta -0.93 ≈93% ITM Gamma 0.006 Theta -0.242 Vega 0.024 Open interest 0 Model this put
25	1	114.1%	0.045	$4.10		$75.90	-0.939	123.8%	1	0
Call · $210 Snapshot session Apr 9, 2026 Last $4.10 Breakeven $214.10 Implied vol 114.1% Delta 0.045 ≈4% ITM Gamma 0.004 Theta -0.188 Vega 0.024 Open interest 25 Model this call Put · $210 In the money Snapshot session May 21, 2026 Last $75.90 Breakeven $134.10 Implied vol 123.8% Delta -0.939 ≈94% ITM Gamma 0.005 Theta -0.253 Vega 0.024 Open interest 0 Model this put
7	1	166.4%	0.092	$0.19		$85.87	-0.945	140.9%	1	0
Call · $220 Snapshot session May 28, 2026 Last $0.19 Breakeven $220.19 Implied vol 166.4% Delta 0.092 ≈9% ITM Gamma 0.005 Theta -0.481 Vega 0.043 Open interest 7 Model this call Put · $220 In the money Snapshot session May 21, 2026 Last $85.87 Breakeven $134.13 Implied vol 140.9% Delta -0.945 ≈94% ITM Gamma 0.004 Theta -0.265 Vega 0.024 Open interest 0 Model this put
3	1	147.1%	0.037	$0.45		—	-0.949	157.2%	—	0
Call · $230 Snapshot session May 12, 2026 Last $0.45 Breakeven $230.45 Implied vol 147.1% Delta 0.037 ≈4% ITM Gamma 0.003 Theta -0.209 Vega 0.013 Open interest 3 Model this call Put · $230 In the money Snapshot session Unknown Last — Breakeven — Implied vol 157.2% Delta -0.949 ≈95% ITM Gamma 0.003 Theta -0.276 Vega 0.025 Open interest 0 Model this put
1	1	160.3%	0.034	$2.70		—	-0.953	172.9%	—	0
Call · $240 Snapshot session Jan 16, 2026 Last $2.70 Breakeven $242.70 Implied vol 160.3% Delta 0.034 ≈3% ITM Gamma 0.002 Theta -0.212 Vega 0.013 Open interest 1 Model this call Put · $240 In the money Snapshot session Unknown Last — Breakeven — Implied vol 172.9% Delta -0.953 ≈95% ITM Gamma 0.003 Theta -0.287 Vega 0.025 Open interest 0 Model this put
2	1	173%	0.032	$1.65		—	-0.956	187.9%	—	0
Call · $250 Snapshot session Mar 17, 2026 Last $1.65 Breakeven $251.65 Implied vol 173% Delta 0.032 ≈3% ITM Gamma 0.002 Theta -0.216 Vega 0.013 Open interest 2 Model this call Put · $250 In the money Snapshot session Unknown Last — Breakeven — Implied vol 187.9% Delta -0.956 ≈96% ITM Gamma 0.002 Theta -0.298 Vega 0.026 Open interest 0 Model this put
3	1	185.2%	0.03	$1.15		$97.50	-0.958	202.3%	1	0
Call · $260 Snapshot session Mar 17, 2026 Last $1.15 Breakeven $261.15 Implied vol 185.2% Delta 0.03 ≈3% ITM Gamma 0.002 Theta -0.219 Vega 0.013 Open interest 3 Model this call Put · $260 In the money Snapshot session Apr 23, 2026 Last $97.50 Breakeven $162.50 Implied vol 202.3% Delta -0.958 ≈96% ITM Gamma 0.002 Theta -0.309 Vega 0.026 Open interest 0 Model this put
2	1	197%	0.029	$1.35		—	-0.96	215.2%	—	0
Call · $270 Snapshot session Mar 10, 2026 Last $1.35 Breakeven $271.35 Implied vol 197% Delta 0.029 ≈3% ITM Gamma 0.002 Theta -0.223 Vega 0.014 Open interest 2 Model this call Put · $270 In the money Snapshot session Unknown Last — Breakeven — Implied vol 215.2% Delta -0.96 ≈96% ITM Gamma 0.002 Theta -0.316 Vega 0.014 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jan 16, 2026–Aug 13, 2026; 11 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. The 25 strikes around the money are shown by default — switch to "All 32" for the wings.

Key facts CIK 1278021 CUSIP 57060D108 13F (30d) 398 filings 363 filers Visit website Investor relations