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Side-by-side financial comparison of MarketAxess (MKTX) and CarParts.com, Inc. (PRTS). Click either name above to swap in a different company.

MarketAxess is the larger business by last-quarter revenue ($209.4M vs $120.4M, roughly 1.7× CarParts.com, Inc.). MarketAxess runs the higher net margin — 44.0% vs -9.6%, a 53.6% gap on every dollar of revenue. On growth, MarketAxess posted the faster year-over-year revenue change (3.5% vs -79.5%). Over the past eight quarters, MarketAxess's revenue compounded faster (-0.2% CAGR vs -14.9%).

MarketAxess Holdings Inc. is an international financial technology company that operates an electronic trading platform for the institutional credit markets, and also provides market data and post-trade services. It enables institutional investors and broker-dealers to trade credit instruments, including corporate bonds, and other types of fixed income products.

Genuine Parts Company (GPC) is an American automotive and industrial parts distributor based in Atlanta, Georgia. Established by brothers Carlyle and Malcolm Fraser in 1928, the company has approximately 60,000 employees. In addition to the United States, GPC has operated in Australasia, Belgium, Canada, France, Germany, Mexico, the Netherlands, Poland, and the United Kingdom. GPC's subsidiaries include industrial parts distributor Motion as well as NAPA Auto Parts, which primarily sells part...

MKTX vs PRTS — Head-to-Head

Bigger by revenue
MKTX
MKTX
1.7× larger
MKTX
$209.4M
$120.4M
PRTS
Growing faster (revenue YoY)
MKTX
MKTX
+83.0% gap
MKTX
3.5%
-79.5%
PRTS
Higher net margin
MKTX
MKTX
53.6% more per $
MKTX
44.0%
-9.6%
PRTS
Faster 2-yr revenue CAGR
MKTX
MKTX
Annualised
MKTX
-0.2%
-14.9%
PRTS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MKTX
MKTX
PRTS
PRTS
Revenue
$209.4M
$120.4M
Net Profit
$92.2M
$-11.6M
Gross Margin
33.2%
Operating Margin
36.3%
Net Margin
44.0%
-9.6%
Revenue YoY
3.5%
-79.5%
Net Profit YoY
41.6%
71.5%
EPS (diluted)
$2.49
$-0.82

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
MKTX
MKTX
PRTS
PRTS
Q4 25
$209.4M
$120.4M
Q3 25
$208.8M
$127.8M
Q2 25
$219.5M
$151.9M
Q1 25
$208.6M
$147.4M
Q4 24
$202.4M
$133.5M
Q3 24
$206.7M
$144.8M
Q2 24
$197.7M
$144.3M
Q1 24
$210.3M
$166.3M
Net Profit
MKTX
MKTX
PRTS
PRTS
Q4 25
$92.2M
$-11.6M
Q3 25
$68.2M
$-10.9M
Q2 25
$71.1M
$-12.7M
Q1 25
$15.1M
$-15.3M
Q4 24
$65.1M
$-15.4M
Q3 24
$71.5M
$-10.0M
Q2 24
$64.9M
$-8.7M
Q1 24
$72.6M
$-6.5M
Gross Margin
MKTX
MKTX
PRTS
PRTS
Q4 25
33.2%
Q3 25
33.1%
Q2 25
32.8%
Q1 25
32.1%
Q4 24
32.5%
Q3 24
35.2%
Q2 24
33.5%
Q1 24
32.4%
Operating Margin
MKTX
MKTX
PRTS
PRTS
Q4 25
36.3%
Q3 25
41.0%
-7.9%
Q2 25
41.9%
-8.2%
Q1 25
42.4%
-10.3%
Q4 24
39.5%
-11.6%
Q3 24
42.1%
-6.9%
Q2 24
41.2%
-6.0%
Q1 24
44.0%
-3.9%
Net Margin
MKTX
MKTX
PRTS
PRTS
Q4 25
44.0%
-9.6%
Q3 25
32.6%
-8.5%
Q2 25
32.4%
-8.4%
Q1 25
7.2%
-10.4%
Q4 24
32.2%
-11.5%
Q3 24
34.6%
-6.9%
Q2 24
32.9%
-6.0%
Q1 24
34.5%
-3.9%
EPS (diluted)
MKTX
MKTX
PRTS
PRTS
Q4 25
$2.49
$-0.82
Q3 25
$1.84
$-0.19
Q2 25
$1.91
$-0.23
Q1 25
$0.40
$-0.27
Q4 24
$1.74
$-0.28
Q3 24
$1.90
$-0.17
Q2 24
$1.72
$-0.15
Q1 24
$1.92
$-0.11

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
MKTX
MKTX
PRTS
PRTS
Cash + ST InvestmentsLiquidity on hand
$519.7M
$25.8M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.1B
$53.5M
Total Assets
$1.9B
$184.9M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MKTX
MKTX
PRTS
PRTS
Q4 25
$519.7M
$25.8M
Q3 25
$473.3M
Q2 25
$462.8M
Q1 25
$486.2M
Q4 24
$544.5M
Q3 24
$446.3M
Q2 24
$434.1M
Q1 24
$376.7M
Stockholders' Equity
MKTX
MKTX
PRTS
PRTS
Q4 25
$1.1B
$53.5M
Q3 25
$1.4B
$64.2M
Q2 25
$1.4B
$62.4M
Q1 25
$1.3B
$72.8M
Q4 24
$1.4B
$85.2M
Q3 24
$1.4B
$97.2M
Q2 24
$1.3B
$103.9M
Q1 24
$1.3B
$109.2M
Total Assets
MKTX
MKTX
PRTS
PRTS
Q4 25
$1.9B
$184.9M
Q3 25
$2.0B
$200.3M
Q2 25
$2.0B
$189.6M
Q1 25
$1.9B
$216.5M
Q4 24
$1.8B
$210.6M
Q3 24
$1.8B
$227.6M
Q2 24
$1.9B
$238.0M
Q1 24
$1.9B
$263.2M

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
MKTX
MKTX
PRTS
PRTS
Operating Cash FlowLast quarter
$382.1M
Free Cash FlowOCF − Capex
$373.9M
FCF MarginFCF / Revenue
178.6%
Capex IntensityCapex / Revenue
3.9%
Cash ConversionOCF / Net Profit
4.14×
TTM Free Cash FlowTrailing 4 quarters
$592.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MKTX
MKTX
PRTS
PRTS
Q4 25
$382.1M
Q3 25
$90.2M
$-6.4M
Q2 25
$103.7M
$-25.6M
Q1 25
$29.6M
$5.5M
Q4 24
$385.2M
$1.8M
Q3 24
$95.1M
$8.5M
Q2 24
$118.8M
$-3.6M
Q1 24
$-4.9M
$3.7M
Free Cash Flow
MKTX
MKTX
PRTS
PRTS
Q4 25
$373.9M
Q3 25
$88.7M
$-8.3M
Q2 25
$102.5M
$-27.9M
Q1 25
$27.7M
$3.4M
Q4 24
$375.3M
$-631.0K
Q3 24
$94.3M
$4.9M
Q2 24
$111.2M
$-10.8M
Q1 24
$-6.1M
$-3.8M
FCF Margin
MKTX
MKTX
PRTS
PRTS
Q4 25
178.6%
Q3 25
42.5%
-6.5%
Q2 25
46.7%
-18.3%
Q1 25
13.3%
2.3%
Q4 24
185.4%
-0.5%
Q3 24
45.6%
3.4%
Q2 24
56.2%
-7.5%
Q1 24
-2.9%
-2.3%
Capex Intensity
MKTX
MKTX
PRTS
PRTS
Q4 25
3.9%
Q3 25
0.7%
1.5%
Q2 25
0.5%
1.5%
Q1 25
0.9%
1.4%
Q4 24
4.9%
1.8%
Q3 24
0.4%
2.5%
Q2 24
3.9%
4.9%
Q1 24
0.6%
4.5%
Cash Conversion
MKTX
MKTX
PRTS
PRTS
Q4 25
4.14×
Q3 25
1.32×
Q2 25
1.46×
Q1 25
1.97×
Q4 24
5.91×
Q3 24
1.33×
Q2 24
1.83×
Q1 24
-0.07×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

MKTX
MKTX

Commission Revenue$181.3M87%
Information Services$13.5M6%
Post Trade Services$11.0M5%
Technology Services$3.6M2%

PRTS
PRTS

Segment breakdown not available.

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