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

DIODES INC is the larger business by last-quarter revenue ($391.6M vs $197.9M, roughly 2.0× REPLIGEN CORP). REPLIGEN CORP runs the higher net margin — 6.7% vs 2.6%, a 4.1% gap on every dollar of revenue. On growth, DIODES INC posted the faster year-over-year revenue change (15.4% vs 13.6%). REPLIGEN CORP produced more free cash flow last quarter ($17.6M vs $12.4M). Over the past eight quarters, REPLIGEN CORP's revenue compounded faster (14.4% CAGR vs 13.9%).

Diodes Incorporated is a global semiconductor manufacturer that designs, produces and supplies discrete, analog and mixed-signal semiconductor products. Its solutions serve key end markets including automotive, industrial, consumer electronics, personal computing and communications infrastructure, with a worldwide customer base.

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...

DIOD vs RGEN — Head-to-Head

Bigger by revenue
DIOD
DIOD
2.0× larger
DIOD
$391.6M
$197.9M
RGEN
Growing faster (revenue YoY)
DIOD
DIOD
+1.8% gap
DIOD
15.4%
13.6%
RGEN
Higher net margin
RGEN
RGEN
4.1% more per $
RGEN
6.7%
2.6%
DIOD
More free cash flow
RGEN
RGEN
$5.1M more FCF
RGEN
$17.6M
$12.4M
DIOD
Faster 2-yr revenue CAGR
RGEN
RGEN
Annualised
RGEN
14.4%
13.9%
DIOD

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
DIOD
DIOD
RGEN
RGEN
Revenue
$391.6M
$197.9M
Net Profit
$10.2M
$13.3M
Gross Margin
31.1%
52.5%
Operating Margin
3.4%
9.0%
Net Margin
2.6%
6.7%
Revenue YoY
15.4%
13.6%
Net Profit YoY
23.8%
143.9%
EPS (diluted)
$0.23
$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
DIOD
DIOD
RGEN
RGEN
Q4 25
$391.6M
$197.9M
Q3 25
$392.2M
$188.8M
Q2 25
$366.2M
$182.4M
Q1 25
$332.1M
$169.2M
Q4 24
$339.3M
$174.1M
Q3 24
$350.1M
$154.9M
Q2 24
$319.8M
$154.1M
Q1 24
$302.0M
$151.3M
Net Profit
DIOD
DIOD
RGEN
RGEN
Q4 25
$10.2M
$13.3M
Q3 25
$14.3M
$14.9M
Q2 25
$46.1M
$14.9M
Q1 25
$-4.4M
$5.8M
Q4 24
$8.2M
$-30.3M
Q3 24
$13.7M
$-654.0K
Q2 24
$8.0M
$3.3M
Q1 24
$14.0M
$2.1M
Gross Margin
DIOD
DIOD
RGEN
RGEN
Q4 25
31.1%
52.5%
Q3 25
30.7%
53.2%
Q2 25
31.5%
50.0%
Q1 25
31.5%
53.6%
Q4 24
32.7%
26.1%
Q3 24
33.7%
50.0%
Q2 24
33.6%
49.8%
Q1 24
33.0%
49.5%
Operating Margin
DIOD
DIOD
RGEN
RGEN
Q4 25
3.4%
9.0%
Q3 25
3.0%
8.9%
Q2 25
2.6%
7.6%
Q1 25
0.4%
3.9%
Q4 24
3.5%
-17.7%
Q3 24
6.2%
-5.1%
Q2 24
1.2%
1.0%
Q1 24
4.3%
1.3%
Net Margin
DIOD
DIOD
RGEN
RGEN
Q4 25
2.6%
6.7%
Q3 25
3.6%
7.9%
Q2 25
12.6%
8.2%
Q1 25
-1.3%
3.4%
Q4 24
2.4%
-17.4%
Q3 24
3.9%
-0.4%
Q2 24
2.5%
2.2%
Q1 24
4.6%
1.4%
EPS (diluted)
DIOD
DIOD
RGEN
RGEN
Q4 25
$0.23
$0.24
Q3 25
$0.31
$0.26
Q2 25
$0.99
$0.26
Q1 25
$-0.10
$0.10
Q4 24
$0.18
$-0.55
Q3 24
$0.30
$-0.01
Q2 24
$0.17
$0.06
Q1 24
$0.30
$0.04

Balance Sheet & Financial Strength

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

Metric
DIOD
DIOD
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$377.0M
$767.6M
Total DebtLower is stronger
$25.7M
$542.2M
Stockholders' EquityBook value
$1.9B
$2.1B
Total Assets
$2.4B
$2.9B
Debt / EquityLower = less leverage
0.01×
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DIOD
DIOD
RGEN
RGEN
Q4 25
$377.0M
$767.6M
Q3 25
$386.4M
$748.7M
Q2 25
$327.3M
$708.9M
Q1 25
$343.9M
$697.2M
Q4 24
$316.1M
$757.4M
Q3 24
$319.3M
$784.0M
Q2 24
$273.9M
$809.1M
Q1 24
$276.0M
$780.6M
Total Debt
DIOD
DIOD
RGEN
RGEN
Q4 25
$25.7M
$542.2M
Q3 25
$24.9M
$537.9M
Q2 25
$26.4M
Q1 25
$20.5M
Q4 24
$20.7M
$525.6M
Q3 24
$22.2M
Q2 24
$20.3M
Q1 24
$20.9M
Stockholders' Equity
DIOD
DIOD
RGEN
RGEN
Q4 25
$1.9B
$2.1B
Q3 25
$1.9B
$2.1B
Q2 25
$1.9B
$2.1B
Q1 25
$1.8B
$2.0B
Q4 24
$1.8B
$2.0B
Q3 24
$1.8B
$2.0B
Q2 24
$1.8B
$2.0B
Q1 24
$1.7B
$2.0B
Total Assets
DIOD
DIOD
RGEN
RGEN
Q4 25
$2.4B
$2.9B
Q3 25
$2.5B
$2.9B
Q2 25
$2.5B
$2.9B
Q1 25
$2.4B
$2.9B
Q4 24
$2.4B
$2.8B
Q3 24
$2.4B
$2.8B
Q2 24
$2.4B
$2.9B
Q1 24
$2.4B
$2.8B
Debt / Equity
DIOD
DIOD
RGEN
RGEN
Q4 25
0.01×
0.26×
Q3 25
0.01×
0.26×
Q2 25
0.01×
Q1 25
0.01×
Q4 24
0.01×
0.27×
Q3 24
0.01×
Q2 24
0.01×
Q1 24
0.01×

Cash Flow & Capital Efficiency

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

Metric
DIOD
DIOD
RGEN
RGEN
Operating Cash FlowLast quarter
$38.1M
$25.7M
Free Cash FlowOCF − Capex
$12.4M
$17.6M
FCF MarginFCF / Revenue
3.2%
8.9%
Capex IntensityCapex / Revenue
6.6%
4.1%
Cash ConversionOCF / Net Profit
3.74×
1.93×
TTM Free Cash FlowTrailing 4 quarters
$137.2M
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DIOD
DIOD
RGEN
RGEN
Q4 25
$38.1M
$25.7M
Q3 25
$79.1M
$48.1M
Q2 25
$41.5M
$28.6M
Q1 25
$56.7M
$15.0M
Q4 24
$81.8M
$39.2M
Q3 24
$54.4M
$49.3M
Q2 24
$14.4M
$42.2M
Q1 24
$-31.1M
$44.7M
Free Cash Flow
DIOD
DIOD
RGEN
RGEN
Q4 25
$12.4M
$17.6M
Q3 25
$62.8M
$43.4M
Q2 25
$21.1M
$21.5M
Q1 25
$40.8M
$11.4M
Q4 24
$62.1M
$33.6M
Q3 24
$39.4M
$42.3M
Q2 24
$-3.5M
$37.4M
Q1 24
$-51.5M
$36.4M
FCF Margin
DIOD
DIOD
RGEN
RGEN
Q4 25
3.2%
8.9%
Q3 25
16.0%
23.0%
Q2 25
5.8%
11.8%
Q1 25
12.3%
6.8%
Q4 24
18.3%
19.3%
Q3 24
11.2%
27.3%
Q2 24
-1.1%
24.3%
Q1 24
-17.1%
24.0%
Capex Intensity
DIOD
DIOD
RGEN
RGEN
Q4 25
6.6%
4.1%
Q3 25
4.2%
2.5%
Q2 25
5.6%
3.9%
Q1 25
4.8%
2.1%
Q4 24
5.8%
3.2%
Q3 24
4.3%
4.5%
Q2 24
5.6%
3.1%
Q1 24
6.7%
5.5%
Cash Conversion
DIOD
DIOD
RGEN
RGEN
Q4 25
3.74×
1.93×
Q3 25
5.54×
3.23×
Q2 25
0.90×
1.92×
Q1 25
2.57×
Q4 24
9.93×
Q3 24
3.95×
Q2 24
1.80×
12.70×
Q1 24
-2.22×
21.35×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DIOD
DIOD

Distributor$253.1M65%
Direct Sales$138.5M35%

RGEN
RGEN

Segment breakdown not available.

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