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Side-by-side financial comparison of ACV Auctions Inc. (ACVA) and FOSTER L B CO (FSTR). Click either name above to swap in a different company.

ACV Auctions Inc. is the larger business by last-quarter revenue ($183.6M vs $160.4M, roughly 1.1× FOSTER L B CO). On growth, FOSTER L B CO posted the faster year-over-year revenue change (25.1% vs 15.1%). FOSTER L B CO produced more free cash flow last quarter ($19.8M vs $-14.7M). Over the past eight quarters, FOSTER L B CO's revenue compounded faster (13.6% CAGR vs 12.3%).

ACV Auctions Inc. operates a leading digital wholesale vehicle auction platform serving automotive dealers across the U.S. and Canada. It offers end-to-end services including transparent vehicle inspections, secure payment processing, and logistics support, enabling efficient trading of used vehicles between registered wholesale buyers and sellers.

Foster L B Co. is a U.S.-headquartered industrial manufacturing firm that develops, produces and distributes engineered access solutions, construction components, and rail infrastructure products. It serves commercial construction, transportation, and industrial end markets across North America and selected international regions.

ACVA vs FSTR — Head-to-Head

Bigger by revenue
ACVA
ACVA
1.1× larger
ACVA
$183.6M
$160.4M
FSTR
Growing faster (revenue YoY)
FSTR
FSTR
+10.0% gap
FSTR
25.1%
15.1%
ACVA
More free cash flow
FSTR
FSTR
$34.5M more FCF
FSTR
$19.8M
$-14.7M
ACVA
Faster 2-yr revenue CAGR
FSTR
FSTR
Annualised
FSTR
13.6%
12.3%
ACVA

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ACVA
ACVA
FSTR
FSTR
Revenue
$183.6M
$160.4M
Net Profit
$2.4M
Gross Margin
19.7%
Operating Margin
-9.7%
4.9%
Net Margin
1.5%
Revenue YoY
15.1%
25.1%
Net Profit YoY
1098.3%
EPS (diluted)
$-0.12
$0.22

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
ACVA
ACVA
FSTR
FSTR
Q4 25
$183.6M
$160.4M
Q3 25
$199.6M
$138.3M
Q2 25
$193.7M
$143.6M
Q1 25
$182.7M
$97.8M
Q4 24
$159.5M
$128.2M
Q3 24
$171.3M
$137.5M
Q2 24
$160.6M
$140.8M
Q1 24
$145.7M
$124.3M
Net Profit
ACVA
ACVA
FSTR
FSTR
Q4 25
$2.4M
Q3 25
$-24.5M
$4.4M
Q2 25
$-7.3M
$2.9M
Q1 25
$-14.8M
$-2.1M
Q4 24
$-242.0K
Q3 24
$-16.0M
$35.9M
Q2 24
$-17.1M
$2.8M
Q1 24
$-20.5M
$4.4M
Gross Margin
ACVA
ACVA
FSTR
FSTR
Q4 25
19.7%
Q3 25
22.5%
Q2 25
21.5%
Q1 25
20.6%
Q4 24
22.3%
Q3 24
23.8%
Q2 24
21.7%
Q1 24
21.1%
Operating Margin
ACVA
ACVA
FSTR
FSTR
Q4 25
-9.7%
4.9%
Q3 25
-11.9%
6.0%
Q2 25
-3.7%
5.3%
Q1 25
-7.9%
-2.0%
Q4 24
-16.2%
2.4%
Q3 24
-10.0%
5.3%
Q2 24
-11.6%
3.2%
Q1 24
-15.5%
4.5%
Net Margin
ACVA
ACVA
FSTR
FSTR
Q4 25
1.5%
Q3 25
-12.3%
3.1%
Q2 25
-3.8%
2.0%
Q1 25
-8.1%
-2.2%
Q4 24
-0.2%
Q3 24
-9.4%
26.1%
Q2 24
-10.6%
2.0%
Q1 24
-14.1%
3.6%
EPS (diluted)
ACVA
ACVA
FSTR
FSTR
Q4 25
$-0.12
$0.22
Q3 25
$-0.14
$0.40
Q2 25
$-0.04
$0.27
Q1 25
$-0.09
$-0.20
Q4 24
$-0.15
$-0.04
Q3 24
$-0.10
$3.27
Q2 24
$-0.10
$0.26
Q1 24
$-0.13
$0.40

Balance Sheet & Financial Strength

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

Metric
ACVA
ACVA
FSTR
FSTR
Cash + ST InvestmentsLiquidity on hand
$271.5M
$4.3M
Total DebtLower is stronger
$42.6M
Stockholders' EquityBook value
$429.7M
$175.3M
Total Assets
$1.1B
$330.4M
Debt / EquityLower = less leverage
0.24×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACVA
ACVA
FSTR
FSTR
Q4 25
$271.5M
$4.3M
Q3 25
$265.3M
$3.4M
Q2 25
$258.4M
$4.2M
Q1 25
$291.9M
$2.6M
Q4 24
$224.1M
$2.5M
Q3 24
$252.5M
$3.1M
Q2 24
$215.0M
$4.0M
Q1 24
$209.8M
$3.1M
Total Debt
ACVA
ACVA
FSTR
FSTR
Q4 25
$42.6M
Q3 25
$58.6M
Q2 25
$81.4M
Q1 25
$82.3M
Q4 24
$46.8M
Q3 24
$68.4M
Q2 24
$87.0M
Q1 24
$77.9M
Stockholders' Equity
ACVA
ACVA
FSTR
FSTR
Q4 25
$429.7M
$175.3M
Q3 25
$434.4M
$174.8M
Q2 25
$448.8M
$174.4M
Q1 25
$439.6M
$170.8M
Q4 24
$440.0M
$178.3M
Q3 24
$456.2M
$181.9M
Q2 24
$457.6M
$147.1M
Q1 24
$458.3M
$144.6M
Total Assets
ACVA
ACVA
FSTR
FSTR
Q4 25
$1.1B
$330.4M
Q3 25
$1.2B
$333.9M
Q2 25
$1.1B
$349.9M
Q1 25
$1.2B
$342.8M
Q4 24
$984.1M
$334.6M
Q3 24
$1.0B
$344.5M
Q2 24
$1.0B
$333.3M
Q1 24
$1.0B
$326.4M
Debt / Equity
ACVA
ACVA
FSTR
FSTR
Q4 25
0.24×
Q3 25
0.33×
Q2 25
0.47×
Q1 25
0.48×
Q4 24
0.26×
Q3 24
0.38×
Q2 24
0.59×
Q1 24
0.54×

Cash Flow & Capital Efficiency

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

Metric
ACVA
ACVA
FSTR
FSTR
Operating Cash FlowLast quarter
$-12.4M
$22.2M
Free Cash FlowOCF − Capex
$-14.7M
$19.8M
FCF MarginFCF / Revenue
-8.0%
12.3%
Capex IntensityCapex / Revenue
1.2%
1.5%
Cash ConversionOCF / Net Profit
9.18×
TTM Free Cash FlowTrailing 4 quarters
$69.1M
$25.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACVA
ACVA
FSTR
FSTR
Q4 25
$-12.4M
$22.2M
Q3 25
$10.3M
$29.2M
Q2 25
$13.7M
$10.4M
Q1 25
$66.6M
$-26.1M
Q4 24
$-3.2M
$24.3M
Q3 24
$21.1M
$24.7M
Q2 24
$4.5M
$-5.0M
Q1 24
$43.0M
$-21.4M
Free Cash Flow
ACVA
ACVA
FSTR
FSTR
Q4 25
$-14.7M
$19.8M
Q3 25
$7.7M
$26.4M
Q2 25
$10.9M
$7.7M
Q1 25
$65.3M
$-28.7M
Q4 24
$-3.9M
$22.3M
Q3 24
$20.2M
$21.7M
Q2 24
$2.7M
$-7.0M
Q1 24
$41.9M
$-24.2M
FCF Margin
ACVA
ACVA
FSTR
FSTR
Q4 25
-8.0%
12.3%
Q3 25
3.8%
19.1%
Q2 25
5.6%
5.4%
Q1 25
35.7%
-29.4%
Q4 24
-2.5%
17.4%
Q3 24
11.8%
15.8%
Q2 24
1.7%
-5.0%
Q1 24
28.8%
-19.4%
Capex Intensity
ACVA
ACVA
FSTR
FSTR
Q4 25
1.2%
1.5%
Q3 25
1.3%
2.0%
Q2 25
1.5%
1.9%
Q1 25
0.7%
2.6%
Q4 24
0.4%
1.5%
Q3 24
0.6%
2.2%
Q2 24
1.1%
1.5%
Q1 24
0.7%
2.2%
Cash Conversion
ACVA
ACVA
FSTR
FSTR
Q4 25
9.18×
Q3 25
6.70×
Q2 25
3.61×
Q1 25
Q4 24
Q3 24
0.69×
Q2 24
-1.74×
Q1 24
-4.83×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ACVA
ACVA

Auction Marketplace Revenue$77.6M42%
Other Marketplace Revenue$72.4M39%
Customer Assurance$24.1M13%
Data Services Revenue$9.4M5%

FSTR
FSTR

Rail Technologies And Services Segment$98.0M61%
Over Time Output Method$26.3M16%
Services$19.4M12%
Rail Technologies Products$10.0M6%
Over Time Input Method$8.3M5%

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