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Side-by-side financial comparison of CSX Corporation (CSX) and CarMax (KMX). Click either name above to swap in a different company.

CarMax is the larger business by last-quarter revenue ($5.8B vs $3.5B, roughly 1.7× CSX Corporation). CSX Corporation runs the higher net margin — 23.2% vs 1.1%, a 22.1% gap on every dollar of revenue. On growth, CSX Corporation posted the faster year-over-year revenue change (1.7% vs -6.9%). CarMax produced more free cash flow last quarter ($1.1B vs $793.0M). Over the past eight quarters, CarMax's revenue compounded faster (1.5% CAGR vs -3.0%).

CSX Transportation, known colloquially as simply CSX, is a Class I freight railroad company operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. Operating about 21,000 route miles (34,000 km) of track, it is the leading subsidiary of CSX Corporation, a Fortune 500 company headquartered in Jacksonville, Florida.

CarMax, Inc. is a used vehicle retailer based in the United States. It operates two business segments: CarMax Sales Operations and CarMax Auto Finance. The company began as a side business of Circuit City Corporation, Inc., opening its first location in September 1993 in Richmond, Virginia. As of January 2025, CarMax operates 253 locations.

CSX vs KMX — Head-to-Head

Bigger by revenue
KMX
KMX
1.7× larger
KMX
$5.8B
$3.5B
CSX
Growing faster (revenue YoY)
CSX
CSX
+8.6% gap
CSX
1.7%
-6.9%
KMX
Higher net margin
CSX
CSX
22.1% more per $
CSX
23.2%
1.1%
KMX
More free cash flow
KMX
KMX
$320.3M more FCF
KMX
$1.1B
$793.0M
CSX
Faster 2-yr revenue CAGR
KMX
KMX
Annualised
KMX
1.5%
-3.0%
CSX

Income Statement — Q1 FY2026 vs Q3 FY2026

Metric
CSX
CSX
KMX
KMX
Revenue
$3.5B
$5.8B
Net Profit
$807.0M
$62.2M
Gross Margin
10.2%
Operating Margin
36.0%
Net Margin
23.2%
1.1%
Revenue YoY
1.7%
-6.9%
Net Profit YoY
24.9%
-50.4%
EPS (diluted)
$0.43

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
CSX
CSX
KMX
KMX
Q1 26
$3.5B
Q4 25
$3.5B
$5.8B
Q3 25
$3.6B
$6.6B
Q2 25
$3.6B
$7.5B
Q1 25
$3.4B
$6.0B
Q4 24
$3.5B
$6.2B
Q3 24
$3.6B
$7.0B
Q2 24
$3.7B
$7.1B
Net Profit
CSX
CSX
KMX
KMX
Q1 26
$807.0M
Q4 25
$720.0M
$62.2M
Q3 25
$694.0M
$95.4M
Q2 25
$829.0M
$210.4M
Q1 25
$646.0M
$89.9M
Q4 24
$720.0M
$125.4M
Q3 24
$894.0M
$132.8M
Q2 24
$963.0M
$152.4M
Gross Margin
CSX
CSX
KMX
KMX
Q1 26
Q4 25
10.2%
Q3 25
10.9%
Q2 25
11.8%
Q1 25
11.1%
Q4 24
10.9%
Q3 24
10.8%
Q2 24
11.1%
Operating Margin
CSX
CSX
KMX
KMX
Q1 26
36.0%
Q4 25
31.6%
Q3 25
30.3%
Q2 25
35.9%
Q1 25
30.4%
2.0%
Q4 24
30.8%
2.7%
Q3 24
37.4%
2.5%
Q2 24
39.1%
2.9%
Net Margin
CSX
CSX
KMX
KMX
Q1 26
23.2%
Q4 25
20.5%
1.1%
Q3 25
19.3%
1.4%
Q2 25
23.2%
2.8%
Q1 25
18.9%
1.5%
Q4 24
20.3%
2.0%
Q3 24
24.7%
1.9%
Q2 24
26.0%
2.1%
EPS (diluted)
CSX
CSX
KMX
KMX
Q1 26
Q4 25
$0.39
$0.43
Q3 25
$0.37
$0.64
Q2 25
$0.44
$1.38
Q1 25
$0.34
$0.58
Q4 24
$0.38
$0.81
Q3 24
$0.46
$0.85
Q2 24
$0.49
$0.97

Balance Sheet & Financial Strength

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

Metric
CSX
CSX
KMX
KMX
Cash + ST InvestmentsLiquidity on hand
$1.1B
$204.9M
Total DebtLower is stronger
$18.9B
$16.6B
Stockholders' EquityBook value
$13.6B
$6.1B
Total Assets
$44.2B
$25.6B
Debt / EquityLower = less leverage
1.39×
2.74×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CSX
CSX
KMX
KMX
Q1 26
$1.1B
Q4 25
$5.0M
$204.9M
Q3 25
$6.0M
$540.4M
Q2 25
$6.0M
$262.8M
Q1 25
$8.0M
$247.0M
Q4 24
$72.0M
$271.9M
Q3 24
$12.0M
$524.7M
Q2 24
$4.0M
$218.9M
Total Debt
CSX
CSX
KMX
KMX
Q1 26
$18.9B
Q4 25
$18.2B
$16.6B
Q3 25
$18.6B
$17.8B
Q2 25
$18.6B
$18.0B
Q1 25
$18.5B
$18.1B
Q4 24
$17.9B
$18.1B
Q3 24
$18.5B
$18.1B
Q2 24
$18.0B
$18.2B
Stockholders' Equity
CSX
CSX
KMX
KMX
Q1 26
$13.6B
Q4 25
$13.2B
$6.1B
Q3 25
$12.8B
$6.2B
Q2 25
$12.4B
$6.3B
Q1 25
$12.2B
$6.2B
Q4 24
$12.5B
$6.2B
Q3 24
$12.9B
$6.2B
Q2 24
$12.6B
$6.2B
Total Assets
CSX
CSX
KMX
KMX
Q1 26
$44.2B
Q4 25
$43.7B
$25.6B
Q3 25
$43.3B
$27.1B
Q2 25
$42.9B
$27.4B
Q1 25
$43.2B
$27.4B
Q4 24
$42.8B
$27.3B
Q3 24
$43.1B
$27.3B
Q2 24
$42.4B
$27.2B
Debt / Equity
CSX
CSX
KMX
KMX
Q1 26
1.39×
Q4 25
1.38×
2.74×
Q3 25
1.45×
2.87×
Q2 25
1.50×
2.86×
Q1 25
1.52×
2.91×
Q4 24
1.43×
2.92×
Q3 24
1.43×
2.93×
Q2 24
1.42×
2.95×

Cash Flow & Capital Efficiency

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

Metric
CSX
CSX
KMX
KMX
Operating Cash FlowLast quarter
$1.3B
$1.3B
Free Cash FlowOCF − Capex
$793.0M
$1.1B
FCF MarginFCF / Revenue
22.8%
19.2%
Capex IntensityCapex / Revenue
2.4%
Cash ConversionOCF / Net Profit
1.58×
20.14×
TTM Free Cash FlowTrailing 4 quarters
$2.0B
$1.9B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CSX
CSX
KMX
KMX
Q1 26
$1.3B
Q4 25
$1.4B
$1.3B
Q3 25
$1.3B
$785.5M
Q2 25
$635.0M
$299.5M
Q1 25
$1.3B
$146.4M
Q4 24
$1.4B
$-23.4M
Q3 24
$1.7B
$619.1M
Q2 24
$1.1B
$-117.7M
Free Cash Flow
CSX
CSX
KMX
KMX
Q1 26
$793.0M
Q4 25
$709.0M
$1.1B
Q3 25
$607.0M
$654.0M
Q2 25
$-141.0M
$162.8M
Q1 25
$536.0M
$18.8M
Q4 24
$550.0M
$-150.6M
Q3 24
$1.1B
$509.9M
Q2 24
$547.0M
$-221.6M
FCF Margin
CSX
CSX
KMX
KMX
Q1 26
22.8%
Q4 25
20.2%
19.2%
Q3 25
16.9%
9.9%
Q2 25
-3.9%
2.2%
Q1 25
15.7%
0.3%
Q4 24
15.5%
-2.4%
Q3 24
29.3%
7.3%
Q2 24
14.8%
-3.1%
Capex Intensity
CSX
CSX
KMX
KMX
Q1 26
Q4 25
19.3%
2.4%
Q3 25
20.4%
2.0%
Q2 25
21.7%
1.8%
Q1 25
21.0%
2.1%
Q4 24
23.7%
2.0%
Q3 24
17.3%
1.6%
Q2 24
14.6%
1.5%
Cash Conversion
CSX
CSX
KMX
KMX
Q1 26
1.58×
Q4 25
1.93×
20.14×
Q3 25
1.93×
8.24×
Q2 25
0.77×
1.42×
Q1 25
1.94×
1.63×
Q4 24
1.93×
-0.19×
Q3 24
1.89×
4.66×
Q2 24
1.13×
-0.77×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CSX
CSX

Segment breakdown not available.

KMX
KMX

Used Vehicles$4.5B78%
Wholesale Vehicles$1.1B19%
Other$150.6M3%
Extendedprotectionplan Domain$96.6M2%
Advertising Subscription Revenues Domain$35.1M1%
Service Domain$18.5M0%
Thirdpartyfinancefees Domain$3.0M0%

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