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Side-by-side financial comparison of DIODES INC (DIOD) and Ultragenyx Pharmaceutical Inc. (RARE). Click either name above to swap in a different company.

DIODES INC is the larger business by last-quarter revenue ($391.6M vs $207.3M, roughly 1.9× Ultragenyx Pharmaceutical Inc.). DIODES INC runs the higher net margin — 2.6% vs -62.0%, a 64.6% gap on every dollar of revenue. On growth, Ultragenyx Pharmaceutical Inc. posted the faster year-over-year revenue change (25.9% vs 15.4%). DIODES INC produced more free cash flow last quarter ($12.4M vs $-100.8M). Over the past eight quarters, Ultragenyx Pharmaceutical Inc.'s revenue compounded faster (38.0% 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.

Ultragenyx Pharmaceutical Inc. is an American biopharmaceutical company involved in the research and development of novel products for treatment of rare and ultra-rare genetic diseases for which there are typically no approved treatments and high unmet medical need. The company works with multiple drug modalities including biologics, small molecule, gene therapies, and ASO and mRNAs in the disease categories of bone, endocrine, metabolic, muscle and CNS diseases.

DIOD vs RARE — Head-to-Head

Bigger by revenue
DIOD
DIOD
1.9× larger
DIOD
$391.6M
$207.3M
RARE
Growing faster (revenue YoY)
RARE
RARE
+10.5% gap
RARE
25.9%
15.4%
DIOD
Higher net margin
DIOD
DIOD
64.6% more per $
DIOD
2.6%
-62.0%
RARE
More free cash flow
DIOD
DIOD
$113.2M more FCF
DIOD
$12.4M
$-100.8M
RARE
Faster 2-yr revenue CAGR
RARE
RARE
Annualised
RARE
38.0%
13.9%
DIOD

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
DIOD
DIOD
RARE
RARE
Revenue
$391.6M
$207.3M
Net Profit
$10.2M
$-128.6M
Gross Margin
31.1%
Operating Margin
3.4%
-54.7%
Net Margin
2.6%
-62.0%
Revenue YoY
15.4%
25.9%
Net Profit YoY
23.8%
3.5%
EPS (diluted)
$0.23
$-1.28

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
RARE
RARE
Q4 25
$391.6M
$207.3M
Q3 25
$392.2M
$159.9M
Q2 25
$366.2M
$166.5M
Q1 25
$332.1M
$139.3M
Q4 24
$339.3M
$164.6M
Q3 24
$350.1M
$139.5M
Q2 24
$319.8M
$147.0M
Q1 24
$302.0M
$108.8M
Net Profit
DIOD
DIOD
RARE
RARE
Q4 25
$10.2M
$-128.6M
Q3 25
$14.3M
$-180.4M
Q2 25
$46.1M
$-115.0M
Q1 25
$-4.4M
$-151.1M
Q4 24
$8.2M
$-133.2M
Q3 24
$13.7M
$-133.5M
Q2 24
$8.0M
$-131.6M
Q1 24
$14.0M
$-170.7M
Gross Margin
DIOD
DIOD
RARE
RARE
Q4 25
31.1%
Q3 25
30.7%
Q2 25
31.5%
Q1 25
31.5%
Q4 24
32.7%
Q3 24
33.7%
Q2 24
33.6%
Q1 24
33.0%
Operating Margin
DIOD
DIOD
RARE
RARE
Q4 25
3.4%
-54.7%
Q3 25
3.0%
-106.9%
Q2 25
2.6%
-64.8%
Q1 25
0.4%
-102.6%
Q4 24
3.5%
-74.3%
Q3 24
6.2%
-94.6%
Q2 24
1.2%
-79.1%
Q1 24
4.3%
-151.9%
Net Margin
DIOD
DIOD
RARE
RARE
Q4 25
2.6%
-62.0%
Q3 25
3.6%
-112.8%
Q2 25
12.6%
-69.0%
Q1 25
-1.3%
-108.5%
Q4 24
2.4%
-80.9%
Q3 24
3.9%
-95.7%
Q2 24
2.5%
-89.5%
Q1 24
4.6%
-156.8%
EPS (diluted)
DIOD
DIOD
RARE
RARE
Q4 25
$0.23
$-1.28
Q3 25
$0.31
$-1.81
Q2 25
$0.99
$-1.17
Q1 25
$-0.10
$-1.57
Q4 24
$0.18
$-1.34
Q3 24
$0.30
$-1.40
Q2 24
$0.17
$-1.52
Q1 24
$0.30
$-2.03

Balance Sheet & Financial Strength

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

Metric
DIOD
DIOD
RARE
RARE
Cash + ST InvestmentsLiquidity on hand
$377.0M
$421.0M
Total DebtLower is stronger
$25.7M
Stockholders' EquityBook value
$1.9B
$-80.0M
Total Assets
$2.4B
$1.5B
Debt / EquityLower = less leverage
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DIOD
DIOD
RARE
RARE
Q4 25
$377.0M
$421.0M
Q3 25
$386.4M
$202.5M
Q2 25
$327.3M
$176.3M
Q1 25
$343.9M
$127.1M
Q4 24
$316.1M
$174.0M
Q3 24
$319.3M
$150.6M
Q2 24
$273.9M
$480.7M
Q1 24
$276.0M
$112.3M
Total Debt
DIOD
DIOD
RARE
RARE
Q4 25
$25.7M
Q3 25
$24.9M
Q2 25
$26.4M
Q1 25
$20.5M
Q4 24
$20.7M
Q3 24
$22.2M
Q2 24
$20.3M
Q1 24
$20.9M
Stockholders' Equity
DIOD
DIOD
RARE
RARE
Q4 25
$1.9B
$-80.0M
Q3 25
$1.9B
$9.2M
Q2 25
$1.9B
$151.3M
Q1 25
$1.8B
$144.2M
Q4 24
$1.8B
$255.0M
Q3 24
$1.8B
$346.8M
Q2 24
$1.8B
$432.4M
Q1 24
$1.7B
$140.3M
Total Assets
DIOD
DIOD
RARE
RARE
Q4 25
$2.4B
$1.5B
Q3 25
$2.5B
$1.2B
Q2 25
$2.5B
$1.3B
Q1 25
$2.4B
$1.3B
Q4 24
$2.4B
$1.5B
Q3 24
$2.4B
$1.5B
Q2 24
$2.4B
$1.6B
Q1 24
$2.4B
$1.3B
Debt / Equity
DIOD
DIOD
RARE
RARE
Q4 25
0.01×
Q3 25
0.01×
Q2 25
0.01×
Q1 25
0.01×
Q4 24
0.01×
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
RARE
RARE
Operating Cash FlowLast quarter
$38.1M
$-99.8M
Free Cash FlowOCF − Capex
$12.4M
$-100.8M
FCF MarginFCF / Revenue
3.2%
-48.6%
Capex IntensityCapex / Revenue
6.6%
0.5%
Cash ConversionOCF / Net Profit
3.74×
TTM Free Cash FlowTrailing 4 quarters
$137.2M
$-472.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DIOD
DIOD
RARE
RARE
Q4 25
$38.1M
$-99.8M
Q3 25
$79.1M
$-91.4M
Q2 25
$41.5M
$-108.3M
Q1 25
$56.7M
$-166.5M
Q4 24
$81.8M
$-79.3M
Q3 24
$54.4M
$-67.0M
Q2 24
$14.4M
$-77.0M
Q1 24
$-31.1M
$-190.7M
Free Cash Flow
DIOD
DIOD
RARE
RARE
Q4 25
$12.4M
$-100.8M
Q3 25
$62.8M
$-92.7M
Q2 25
$21.1M
$-110.7M
Q1 25
$40.8M
$-167.8M
Q4 24
$62.1M
$-79.5M
Q3 24
$39.4M
$-68.6M
Q2 24
$-3.5M
$-79.0M
Q1 24
$-51.5M
$-193.9M
FCF Margin
DIOD
DIOD
RARE
RARE
Q4 25
3.2%
-48.6%
Q3 25
16.0%
-58.0%
Q2 25
5.8%
-66.5%
Q1 25
12.3%
-120.5%
Q4 24
18.3%
-48.3%
Q3 24
11.2%
-49.2%
Q2 24
-1.1%
-53.7%
Q1 24
-17.1%
-178.2%
Capex Intensity
DIOD
DIOD
RARE
RARE
Q4 25
6.6%
0.5%
Q3 25
4.2%
0.8%
Q2 25
5.6%
1.5%
Q1 25
4.8%
1.0%
Q4 24
5.8%
0.1%
Q3 24
4.3%
1.2%
Q2 24
5.6%
1.4%
Q1 24
6.7%
3.0%
Cash Conversion
DIOD
DIOD
RARE
RARE
Q4 25
3.74×
Q3 25
5.54×
Q2 25
0.90×
Q1 25
Q4 24
9.93×
Q3 24
3.95×
Q2 24
1.80×
Q1 24
-2.22×

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%

RARE
RARE

Royalty$105.6M51%
Products$101.7M49%

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