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Side-by-side financial comparison of POWER INTEGRATIONS INC (POWI) and REPLIGEN CORP (RGEN). Click either name above to swap in a different company.

REPLIGEN CORP is the larger business by last-quarter revenue ($197.9M vs $103.2M, roughly 1.9× POWER INTEGRATIONS INC). POWER INTEGRATIONS INC runs the higher net margin — 12.9% vs 6.7%, a 6.2% gap on every dollar of revenue. On growth, REPLIGEN CORP posted the faster year-over-year revenue change (13.6% vs -1.9%). POWER INTEGRATIONS INC produced more free cash flow last quarter ($19.2M vs $17.6M). Over the past eight quarters, REPLIGEN CORP's revenue compounded faster (14.4% CAGR vs 6.1%).

American Electric Power Company, Inc. is an American domestic electric utility company in the United States. It is one of the largest electric utility companies in the country, with more than five million customers in 11 states.

Repligen Corporation is a global life sciences company devoted to the development and commercialization of innovative bioprocessing technologies and systems that enable efficiencies in the process of manufacturing biological drugs.2025 The company is based in Waltham, Massachusetts,2014 and was incorporated in Delaware in 1981. A public company, Repligen is listed on the NASDAQ exchange under the symbol RGEN. As of 2025, Repligen employs over 1,900 employees globally and serves primarily biop...

POWI vs RGEN — Head-to-Head

Bigger by revenue
RGEN
RGEN
1.9× larger
RGEN
$197.9M
$103.2M
POWI
Growing faster (revenue YoY)
RGEN
RGEN
+15.6% gap
RGEN
13.6%
-1.9%
POWI
Higher net margin
POWI
POWI
6.2% more per $
POWI
12.9%
6.7%
RGEN
More free cash flow
POWI
POWI
$1.6M more FCF
POWI
$19.2M
$17.6M
RGEN
Faster 2-yr revenue CAGR
RGEN
RGEN
Annualised
RGEN
14.4%
6.1%
POWI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
POWI
POWI
RGEN
RGEN
Revenue
$103.2M
$197.9M
Net Profit
$13.3M
$13.3M
Gross Margin
52.9%
52.5%
Operating Margin
8.5%
9.0%
Net Margin
12.9%
6.7%
Revenue YoY
-1.9%
13.6%
Net Profit YoY
45.4%
143.9%
EPS (diluted)
$0.24
$0.24

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
POWI
POWI
RGEN
RGEN
Q4 25
$103.2M
$197.9M
Q3 25
$118.9M
$188.8M
Q2 25
$115.9M
$182.4M
Q1 25
$105.5M
$169.2M
Q4 24
$105.3M
$174.1M
Q3 24
$115.8M
$154.9M
Q2 24
$106.2M
$154.1M
Q1 24
$91.7M
$151.3M
Net Profit
POWI
POWI
RGEN
RGEN
Q4 25
$13.3M
$13.3M
Q3 25
$-1.4M
$14.9M
Q2 25
$1.4M
$14.9M
Q1 25
$8.8M
$5.8M
Q4 24
$9.1M
$-30.3M
Q3 24
$14.3M
$-654.0K
Q2 24
$4.8M
$3.3M
Q1 24
$4.0M
$2.1M
Gross Margin
POWI
POWI
RGEN
RGEN
Q4 25
52.9%
52.5%
Q3 25
54.5%
53.2%
Q2 25
55.2%
50.0%
Q1 25
55.2%
53.6%
Q4 24
54.4%
26.1%
Q3 24
54.5%
50.0%
Q2 24
53.2%
49.8%
Q1 24
52.1%
49.5%
Operating Margin
POWI
POWI
RGEN
RGEN
Q4 25
8.5%
9.0%
Q3 25
-3.3%
8.9%
Q2 25
-1.2%
7.6%
Q1 25
6.4%
3.9%
Q4 24
3.7%
-17.7%
Q3 24
10.0%
-5.1%
Q2 24
1.8%
1.0%
Q1 24
0.5%
1.3%
Net Margin
POWI
POWI
RGEN
RGEN
Q4 25
12.9%
6.7%
Q3 25
-1.1%
7.9%
Q2 25
1.2%
8.2%
Q1 25
8.3%
3.4%
Q4 24
8.7%
-17.4%
Q3 24
12.3%
-0.4%
Q2 24
4.6%
2.2%
Q1 24
4.3%
1.4%
EPS (diluted)
POWI
POWI
RGEN
RGEN
Q4 25
$0.24
$0.24
Q3 25
$-0.02
$0.26
Q2 25
$0.02
$0.26
Q1 25
$0.15
$0.10
Q4 24
$0.15
$-0.55
Q3 24
$0.25
$-0.01
Q2 24
$0.09
$0.06
Q1 24
$0.07
$0.04

Balance Sheet & Financial Strength

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

Metric
POWI
POWI
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$249.5M
$767.6M
Total DebtLower is stronger
$542.2M
Stockholders' EquityBook value
$672.8M
$2.1B
Total Assets
$772.2M
$2.9B
Debt / EquityLower = less leverage
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
POWI
POWI
RGEN
RGEN
Q4 25
$249.5M
$767.6M
Q3 25
$241.9M
$748.7M
Q2 25
$268.7M
$708.9M
Q1 25
$289.3M
$697.2M
Q4 24
$300.0M
$757.4M
Q3 24
$303.8M
$784.0M
Q2 24
$290.5M
$809.1M
Q1 24
$299.6M
$780.6M
Total Debt
POWI
POWI
RGEN
RGEN
Q4 25
$542.2M
Q3 25
$537.9M
Q2 25
Q1 25
Q4 24
$525.6M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
POWI
POWI
RGEN
RGEN
Q4 25
$672.8M
$2.1B
Q3 25
$672.0M
$2.1B
Q2 25
$703.8M
$2.1B
Q1 25
$735.8M
$2.0B
Q4 24
$749.8M
$2.0B
Q3 24
$749.2M
$2.0B
Q2 24
$730.7M
$2.0B
Q1 24
$738.2M
$2.0B
Total Assets
POWI
POWI
RGEN
RGEN
Q4 25
$772.2M
$2.9B
Q3 25
$772.5M
$2.9B
Q2 25
$797.5M
$2.9B
Q1 25
$814.4M
$2.9B
Q4 24
$828.8M
$2.8B
Q3 24
$825.0M
$2.8B
Q2 24
$804.8M
$2.9B
Q1 24
$805.8M
$2.8B
Debt / Equity
POWI
POWI
RGEN
RGEN
Q4 25
0.26×
Q3 25
0.26×
Q2 25
Q1 25
Q4 24
0.27×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
POWI
POWI
RGEN
RGEN
Operating Cash FlowLast quarter
$26.2M
$25.7M
Free Cash FlowOCF − Capex
$19.2M
$17.6M
FCF MarginFCF / Revenue
18.6%
8.9%
Capex IntensityCapex / Revenue
6.8%
4.1%
Cash ConversionOCF / Net Profit
1.97×
1.93×
TTM Free Cash FlowTrailing 4 quarters
$87.1M
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
POWI
POWI
RGEN
RGEN
Q4 25
$26.2M
$25.7M
Q3 25
$29.9M
$48.1M
Q2 25
$29.1M
$28.6M
Q1 25
$26.4M
$15.0M
Q4 24
$14.7M
$39.2M
Q3 24
$32.9M
$49.3M
Q2 24
$17.6M
$42.2M
Q1 24
$15.9M
$44.7M
Free Cash Flow
POWI
POWI
RGEN
RGEN
Q4 25
$19.2M
$17.6M
Q3 25
$24.2M
$43.4M
Q2 25
$23.1M
$21.5M
Q1 25
$20.7M
$11.4M
Q4 24
$11.7M
$33.6M
Q3 24
$27.2M
$42.3M
Q2 24
$13.5M
$37.4M
Q1 24
$11.6M
$36.4M
FCF Margin
POWI
POWI
RGEN
RGEN
Q4 25
18.6%
8.9%
Q3 25
20.3%
23.0%
Q2 25
20.0%
11.8%
Q1 25
19.6%
6.8%
Q4 24
11.1%
19.3%
Q3 24
23.5%
27.3%
Q2 24
12.7%
24.3%
Q1 24
12.6%
24.0%
Capex Intensity
POWI
POWI
RGEN
RGEN
Q4 25
6.8%
4.1%
Q3 25
4.8%
2.5%
Q2 25
5.1%
3.9%
Q1 25
5.4%
2.1%
Q4 24
2.9%
3.2%
Q3 24
4.9%
4.5%
Q2 24
3.9%
3.1%
Q1 24
4.7%
5.5%
Cash Conversion
POWI
POWI
RGEN
RGEN
Q4 25
1.97×
1.93×
Q3 25
3.23×
Q2 25
21.24×
1.92×
Q1 25
3.00×
2.57×
Q4 24
1.61×
Q3 24
2.30×
Q2 24
3.64×
12.70×
Q1 24
4.02×
21.35×

Financial Flow Comparison

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

Revenue Breakdown by Segment

POWI
POWI

Distributors$65.8M64%
Other$10.3M10%
KR$9.3M9%
DE$7.1M7%
TW$5.5M5%
Emea Other Than Germany$5.3M5%

RGEN
RGEN

Segment breakdown not available.

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