vs

Side-by-side financial comparison of Custom Truck One Source, Inc. (CTOS) and PROASSURANCE CORP (PRA). Click either name above to swap in a different company.

Custom Truck One Source, Inc. is the larger business by last-quarter revenue ($461.6M vs $269.6M, roughly 1.7× PROASSURANCE CORP). PROASSURANCE CORP runs the higher net margin — 12.4% vs -0.9%, a 13.3% gap on every dollar of revenue. On growth, PROASSURANCE CORP posted the faster year-over-year revenue change (-7.1% vs -12.6%). Over the past eight quarters, Custom Truck One Source, Inc.'s revenue compounded faster (20.0% CAGR vs -2.7%).

Custom Truck One Source, Inc. is a leading provider of specialized heavy truck and equipment solutions in North America. It offers custom vehicle manufacturing, equipment sales and rentals, aftermarket parts, and maintenance services, serving core infrastructure, utility, construction, and energy industry segments.

ProAssurance Corporation, headquartered in Birmingham, Alabama, is a property and casualty company that sells professional liability insurance to doctors. The company was founded in 1976 as Mutual Assurance and was later renamed to Medical Assurance in 1997. The name "ProAssurance" was created in 2001 when Medical Assurance merged with Professionals Group. The company is currently the fourth largest medical professional liability insurance writer and has over $6 billion in assets.

CTOS vs PRA — Head-to-Head

Bigger by revenue
CTOS
CTOS
1.7× larger
CTOS
$461.6M
$269.6M
PRA
Growing faster (revenue YoY)
PRA
PRA
+5.6% gap
PRA
-7.1%
-12.6%
CTOS
Higher net margin
PRA
PRA
13.3% more per $
PRA
12.4%
-0.9%
CTOS
Faster 2-yr revenue CAGR
CTOS
CTOS
Annualised
CTOS
20.0%
-2.7%
PRA

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
CTOS
CTOS
PRA
PRA
Revenue
$461.6M
$269.6M
Net Profit
$-4.1M
$33.4M
Gross Margin
22.3%
Operating Margin
6.8%
17.3%
Net Margin
-0.9%
12.4%
Revenue YoY
-12.6%
-7.1%
Net Profit YoY
76.9%
106.4%
EPS (diluted)
$-0.02
$0.65

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
CTOS
CTOS
PRA
PRA
Q1 26
$461.6M
Q4 25
$387.3M
$269.6M
Q3 25
$359.9M
$279.6M
Q2 25
$392.2M
$276.8M
Q1 25
$307.1M
$272.1M
Q4 24
$398.3M
$290.1M
Q3 24
$337.5M
$285.3M
Q2 24
$320.6M
$290.4M
Net Profit
CTOS
CTOS
PRA
PRA
Q1 26
$-4.1M
Q4 25
$20.9M
$33.4M
Q3 25
$-5.8M
$1.4M
Q2 25
$-28.4M
$21.9M
Q1 25
$-17.8M
$-5.8M
Q4 24
$27.6M
$16.2M
Q3 24
$-17.4M
$16.4M
Q2 24
$-24.5M
$15.5M
Gross Margin
CTOS
CTOS
PRA
PRA
Q1 26
22.3%
Q4 25
31.8%
Q3 25
28.0%
Q2 25
26.1%
Q1 25
27.9%
Q4 24
29.7%
Q3 24
27.2%
Q2 24
27.8%
Operating Margin
CTOS
CTOS
PRA
PRA
Q1 26
6.8%
Q4 25
13.4%
17.3%
Q3 25
9.1%
1.6%
Q2 25
7.1%
9.9%
Q1 25
4.0%
-2.3%
Q4 24
16.9%
6.5%
Q3 24
6.8%
7.4%
Q2 24
5.5%
6.2%
Net Margin
CTOS
CTOS
PRA
PRA
Q1 26
-0.9%
Q4 25
5.4%
12.4%
Q3 25
-1.6%
0.5%
Q2 25
-7.2%
7.9%
Q1 25
-5.8%
-2.1%
Q4 24
6.9%
5.6%
Q3 24
-5.2%
5.8%
Q2 24
-7.6%
5.3%
EPS (diluted)
CTOS
CTOS
PRA
PRA
Q1 26
$-0.02
Q4 25
$0.10
$0.65
Q3 25
$-0.03
$0.03
Q2 25
$-0.13
$0.42
Q1 25
$-0.08
$-0.11
Q4 24
$0.11
$0.32
Q3 24
$-0.07
$0.32
Q2 24
$-0.10
$0.30

Balance Sheet & Financial Strength

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

Metric
CTOS
CTOS
PRA
PRA
Cash + ST InvestmentsLiquidity on hand
$9.6M
$36.5M
Total DebtLower is stronger
$5.1M
$420.4M
Stockholders' EquityBook value
$805.2M
$1.3B
Total Assets
$3.5B
$5.4B
Debt / EquityLower = less leverage
0.01×
0.31×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
CTOS
CTOS
PRA
PRA
Q1 26
$9.6M
Q4 25
$6.3M
$36.5M
Q3 25
$13.1M
$54.5M
Q2 25
$5.3M
$41.6M
Q1 25
$5.4M
$43.5M
Q4 24
$3.8M
$54.9M
Q3 24
$8.4M
$45.3M
Q2 24
$8.1M
$36.9M
Total Debt
CTOS
CTOS
PRA
PRA
Q1 26
$5.1M
Q4 25
$1.6B
$420.4M
Q3 25
$1.6B
$421.5M
Q2 25
$1.6B
$422.6M
Q1 25
$1.6B
$423.7M
Q4 24
$1.5B
$424.9M
Q3 24
$1.6B
$425.9M
Q2 24
$1.5B
$426.9M
Stockholders' Equity
CTOS
CTOS
PRA
PRA
Q1 26
$805.2M
Q4 25
$809.1M
$1.3B
Q3 25
$784.7M
$1.3B
Q2 25
$790.1M
$1.3B
Q1 25
$813.4M
$1.2B
Q4 24
$861.3M
$1.2B
Q3 24
$837.5M
$1.2B
Q2 24
$856.7M
$1.1B
Total Assets
CTOS
CTOS
PRA
PRA
Q1 26
$3.5B
Q4 25
$3.4B
$5.4B
Q3 25
$3.5B
$5.6B
Q2 25
$3.6B
$5.5B
Q1 25
$3.5B
$5.5B
Q4 24
$3.5B
$5.6B
Q3 24
$3.6B
$5.7B
Q2 24
$3.5B
$5.6B
Debt / Equity
CTOS
CTOS
PRA
PRA
Q1 26
0.01×
Q4 25
2.03×
0.31×
Q3 25
2.10×
0.32×
Q2 25
2.04×
0.33×
Q1 25
1.97×
0.34×
Q4 24
1.77×
0.35×
Q3 24
1.87×
0.35×
Q2 24
1.79×
0.38×

Cash Flow & Capital Efficiency

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

Metric
CTOS
CTOS
PRA
PRA
Operating Cash FlowLast quarter
$-25.6M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
-0.77×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
CTOS
CTOS
PRA
PRA
Q1 26
Q4 25
$47.3M
$-25.6M
Q3 25
$81.5M
$27.2M
Q2 25
$125.7M
$-28.1M
Q1 25
$55.6M
$-11.6M
Q4 24
$82.1M
$-10.7M
Q3 24
$16.5M
$14.0M
Q2 24
$37.8M
$-12.8M
Cash Conversion
CTOS
CTOS
PRA
PRA
Q1 26
Q4 25
2.27×
-0.77×
Q3 25
18.81×
Q2 25
-1.28×
Q1 25
Q4 24
2.98×
-0.66×
Q3 24
0.85×
Q2 24
-0.83×

Financial Flow Comparison

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

Revenue Breakdown by Segment

CTOS
CTOS

Equipment sales$292.6M63%
Rental revenue$137.2M30%
Parts sales and services$31.8M7%

PRA
PRA

Workers Compensation Insurance Segment$164.4M61%
Other$59.6M22%
Segregated Portfolio Cell Reinsurance$45.7M17%

Related Comparisons