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Side-by-side financial comparison of PROASSURANCE CORP (PRA) and RAMBUS INC (RMBS). Click either name above to swap in a different company.

PROASSURANCE CORP is the larger business by last-quarter revenue ($269.6M vs $180.2M, roughly 1.5× RAMBUS INC). RAMBUS INC runs the higher net margin — 33.2% vs 12.4%, a 20.9% gap on every dollar of revenue. On growth, RAMBUS INC posted the faster year-over-year revenue change (8.1% vs -7.1%). Over the past eight quarters, RAMBUS INC's revenue compounded faster (16.8% CAGR vs -2.7%).

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.

Rambus Inc. is an American technology company that designs, develops and licenses chip interface technologies and architectures that are used in digital electronics products. The company, founded in 1990, is well known for inventing RDRAM and for its intellectual property-based litigation following the introduction of DDR-SDRAM memory.

PRA vs RMBS — Head-to-Head

Bigger by revenue
PRA
PRA
1.5× larger
PRA
$269.6M
$180.2M
RMBS
Growing faster (revenue YoY)
RMBS
RMBS
+15.2% gap
RMBS
8.1%
-7.1%
PRA
Higher net margin
RMBS
RMBS
20.9% more per $
RMBS
33.2%
12.4%
PRA
Faster 2-yr revenue CAGR
RMBS
RMBS
Annualised
RMBS
16.8%
-2.7%
PRA

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
PRA
PRA
RMBS
RMBS
Revenue
$269.6M
$180.2M
Net Profit
$33.4M
$59.9M
Gross Margin
79.7%
Operating Margin
17.3%
34.3%
Net Margin
12.4%
33.2%
Revenue YoY
-7.1%
8.1%
Net Profit YoY
106.4%
-7.3%
EPS (diluted)
$0.65
$0.55

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
PRA
PRA
RMBS
RMBS
Q1 26
$180.2M
Q4 25
$269.6M
$190.2M
Q3 25
$279.6M
$178.5M
Q2 25
$276.8M
$172.2M
Q1 25
$272.1M
$166.7M
Q4 24
$290.1M
$161.1M
Q3 24
$285.3M
$145.5M
Q2 24
$290.4M
$132.1M
Net Profit
PRA
PRA
RMBS
RMBS
Q1 26
$59.9M
Q4 25
$33.4M
$63.8M
Q3 25
$1.4M
$48.4M
Q2 25
$21.9M
$57.9M
Q1 25
$-5.8M
$60.3M
Q4 24
$16.2M
$62.2M
Q3 24
$16.4M
$48.7M
Q2 24
$15.5M
$36.1M
Gross Margin
PRA
PRA
RMBS
RMBS
Q1 26
79.7%
Q4 25
78.9%
Q3 25
79.5%
Q2 25
79.8%
Q1 25
80.3%
Q4 24
80.4%
Q3 24
80.7%
Q2 24
79.7%
Operating Margin
PRA
PRA
RMBS
RMBS
Q1 26
34.3%
Q4 25
17.3%
37.2%
Q3 25
1.6%
35.4%
Q2 25
9.9%
36.6%
Q1 25
-2.3%
37.9%
Q4 24
6.5%
35.9%
Q3 24
7.4%
37.6%
Q2 24
6.2%
30.5%
Net Margin
PRA
PRA
RMBS
RMBS
Q1 26
33.2%
Q4 25
12.4%
33.6%
Q3 25
0.5%
27.1%
Q2 25
7.9%
33.6%
Q1 25
-2.1%
36.2%
Q4 24
5.6%
38.6%
Q3 24
5.8%
33.4%
Q2 24
5.3%
27.3%
EPS (diluted)
PRA
PRA
RMBS
RMBS
Q1 26
$0.55
Q4 25
$0.65
$0.58
Q3 25
$0.03
$0.44
Q2 25
$0.42
$0.53
Q1 25
$-0.11
$0.56
Q4 24
$0.32
$0.57
Q3 24
$0.32
$0.45
Q2 24
$0.30
$0.33

Balance Sheet & Financial Strength

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

Metric
PRA
PRA
RMBS
RMBS
Cash + ST InvestmentsLiquidity on hand
$36.5M
$134.3M
Total DebtLower is stronger
$420.4M
Stockholders' EquityBook value
$1.3B
Total Assets
$5.4B
$1.5B
Debt / EquityLower = less leverage
0.31×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
PRA
PRA
RMBS
RMBS
Q1 26
$134.3M
Q4 25
$36.5M
$182.8M
Q3 25
$54.5M
$79.2M
Q2 25
$41.6M
$87.8M
Q1 25
$43.5M
$132.2M
Q4 24
$54.9M
$99.8M
Q3 24
$45.3M
$114.0M
Q2 24
$36.9M
$124.6M
Total Debt
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
$420.4M
Q3 25
$421.5M
Q2 25
$422.6M
Q1 25
$423.7M
Q4 24
$424.9M
Q3 24
$425.9M
Q2 24
$426.9M
Stockholders' Equity
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
$1.3B
$1.4B
Q3 25
$1.3B
$1.3B
Q2 25
$1.3B
$1.2B
Q1 25
$1.2B
$1.2B
Q4 24
$1.2B
$1.1B
Q3 24
$1.2B
$1.0B
Q2 24
$1.1B
$1.0B
Total Assets
PRA
PRA
RMBS
RMBS
Q1 26
$1.5B
Q4 25
$5.4B
$1.5B
Q3 25
$5.6B
$1.4B
Q2 25
$5.5B
$1.5B
Q1 25
$5.5B
$1.4B
Q4 24
$5.6B
$1.3B
Q3 24
$5.7B
$1.3B
Q2 24
$5.6B
$1.3B
Debt / Equity
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
0.31×
Q3 25
0.32×
Q2 25
0.33×
Q1 25
0.34×
Q4 24
0.35×
Q3 24
0.35×
Q2 24
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
PRA
PRA
RMBS
RMBS
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
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
$-25.6M
$99.8M
Q3 25
$27.2M
$88.4M
Q2 25
$-28.1M
$94.4M
Q1 25
$-11.6M
$77.4M
Q4 24
$-10.7M
$59.0M
Q3 24
$14.0M
$62.1M
Q2 24
$-12.8M
$70.4M
Free Cash Flow
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
$93.3M
Q3 25
$82.5M
Q2 25
$87.9M
Q1 25
$69.5M
Q4 24
$52.5M
Q3 24
$52.2M
Q2 24
$59.1M
FCF Margin
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
49.0%
Q3 25
46.2%
Q2 25
51.0%
Q1 25
41.7%
Q4 24
32.6%
Q3 24
35.9%
Q2 24
44.7%
Capex Intensity
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
3.4%
Q3 25
3.3%
Q2 25
3.8%
Q1 25
4.7%
Q4 24
4.0%
Q3 24
6.8%
Q2 24
8.6%
Cash Conversion
PRA
PRA
RMBS
RMBS
Q1 26
Q4 25
-0.77×
1.56×
Q3 25
18.81×
1.83×
Q2 25
-1.28×
1.63×
Q1 25
1.28×
Q4 24
-0.66×
0.95×
Q3 24
0.85×
1.28×
Q2 24
-0.83×
1.95×

Financial Flow Comparison

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

Revenue Breakdown by Segment

PRA
PRA

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

RMBS
RMBS

Product revenue$88.0M49%
Royalties$69.6M39%
Contract and other revenue$22.6M13%

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