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

QuidelOrtho Corp is the larger business by last-quarter revenue ($619.8M vs $391.6M, roughly 1.6× DIODES INC). DIODES INC runs the higher net margin — 2.6% vs -14.8%, a 17.4% gap on every dollar of revenue. On growth, DIODES INC posted the faster year-over-year revenue change (15.4% vs -10.5%). Over the past eight quarters, DIODES INC's revenue compounded faster (13.9% CAGR vs -6.6%).

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.

QuidelOrtho Corporation is an American manufacturer of diagnostic healthcare products that are sold worldwide.

DIOD vs QDEL — Head-to-Head

Bigger by revenue
QDEL
QDEL
1.6× larger
QDEL
$619.8M
$391.6M
DIOD
Growing faster (revenue YoY)
DIOD
DIOD
+25.9% gap
DIOD
15.4%
-10.5%
QDEL
Higher net margin
DIOD
DIOD
17.4% more per $
DIOD
2.6%
-14.8%
QDEL
Faster 2-yr revenue CAGR
DIOD
DIOD
Annualised
DIOD
13.9%
-6.6%
QDEL

Income Statement — Q4 FY2025 vs Q1 FY2027

Metric
DIOD
DIOD
QDEL
QDEL
Revenue
$391.6M
$619.8M
Net Profit
$10.2M
$-91.8M
Gross Margin
31.1%
Operating Margin
3.4%
Net Margin
2.6%
-14.8%
Revenue YoY
15.4%
-10.5%
Net Profit YoY
23.8%
EPS (diluted)
$0.23
$-1.35

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
QDEL
QDEL
Q1 26
$619.8M
Q4 25
$391.6M
Q3 25
$392.2M
$699.9M
Q2 25
$366.2M
$613.9M
Q1 25
$332.1M
$692.8M
Q4 24
$339.3M
$707.8M
Q3 24
$350.1M
$727.1M
Q2 24
$319.8M
$637.0M
Net Profit
DIOD
DIOD
QDEL
QDEL
Q1 26
$-91.8M
Q4 25
$10.2M
Q3 25
$14.3M
$-733.0M
Q2 25
$46.1M
$-255.4M
Q1 25
$-4.4M
$-12.7M
Q4 24
$8.2M
$-178.4M
Q3 24
$13.7M
$-19.9M
Q2 24
$8.0M
$-147.7M
Gross Margin
DIOD
DIOD
QDEL
QDEL
Q1 26
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%
Operating Margin
DIOD
DIOD
QDEL
QDEL
Q1 26
Q4 25
3.4%
Q3 25
3.0%
-100.7%
Q2 25
2.6%
-29.4%
Q1 25
0.4%
4.7%
Q4 24
3.5%
-14.2%
Q3 24
6.2%
2.1%
Q2 24
1.2%
-18.4%
Net Margin
DIOD
DIOD
QDEL
QDEL
Q1 26
-14.8%
Q4 25
2.6%
Q3 25
3.6%
-104.7%
Q2 25
12.6%
-41.6%
Q1 25
-1.3%
-1.8%
Q4 24
2.4%
-25.2%
Q3 24
3.9%
-2.7%
Q2 24
2.5%
-23.2%
EPS (diluted)
DIOD
DIOD
QDEL
QDEL
Q1 26
$-1.35
Q4 25
$0.23
Q3 25
$0.31
$-10.78
Q2 25
$0.99
$-3.77
Q1 25
$-0.10
$-0.19
Q4 24
$0.18
$-2.54
Q3 24
$0.30
$-0.30
Q2 24
$0.17
$-2.20

Balance Sheet & Financial Strength

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

Metric
DIOD
DIOD
QDEL
QDEL
Cash + ST InvestmentsLiquidity on hand
$377.0M
$140.4M
Total DebtLower is stronger
$25.7M
$2.5B
Stockholders' EquityBook value
$1.9B
$1.9B
Total Assets
$2.4B
$5.6B
Debt / EquityLower = less leverage
0.01×
1.33×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DIOD
DIOD
QDEL
QDEL
Q1 26
$140.4M
Q4 25
$377.0M
Q3 25
$386.4M
$98.1M
Q2 25
$327.3M
$151.7M
Q1 25
$343.9M
$127.1M
Q4 24
$316.1M
$98.3M
Q3 24
$319.3M
$143.7M
Q2 24
$273.9M
$107.0M
Total Debt
DIOD
DIOD
QDEL
QDEL
Q1 26
$2.5B
Q4 25
$25.7M
Q3 25
$24.9M
$2.5B
Q2 25
$26.4M
$2.1B
Q1 25
$20.5M
$2.1B
Q4 24
$20.7M
$2.1B
Q3 24
$22.2M
$2.2B
Q2 24
$20.3M
$2.2B
Stockholders' Equity
DIOD
DIOD
QDEL
QDEL
Q1 26
$1.9B
Q4 25
$1.9B
Q3 25
$1.9B
$2.0B
Q2 25
$1.9B
$2.8B
Q1 25
$1.8B
$3.0B
Q4 24
$1.8B
$3.0B
Q3 24
$1.8B
$3.2B
Q2 24
$1.8B
$3.2B
Total Assets
DIOD
DIOD
QDEL
QDEL
Q1 26
$5.6B
Q4 25
$2.4B
Q3 25
$2.5B
$5.7B
Q2 25
$2.5B
$6.4B
Q1 25
$2.4B
$6.5B
Q4 24
$2.4B
$6.4B
Q3 24
$2.4B
$6.8B
Q2 24
$2.4B
$6.7B
Debt / Equity
DIOD
DIOD
QDEL
QDEL
Q1 26
1.33×
Q4 25
0.01×
Q3 25
0.01×
1.23×
Q2 25
0.01×
0.74×
Q1 25
0.01×
0.70×
Q4 24
0.01×
0.72×
Q3 24
0.01×
0.68×
Q2 24
0.01×
0.70×

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
QDEL
QDEL
Operating Cash FlowLast quarter
$38.1M
Free Cash FlowOCF − Capex
$12.4M
FCF MarginFCF / Revenue
3.2%
Capex IntensityCapex / Revenue
6.6%
Cash ConversionOCF / Net Profit
3.74×
TTM Free Cash FlowTrailing 4 quarters
$137.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DIOD
DIOD
QDEL
QDEL
Q1 26
Q4 25
$38.1M
Q3 25
$79.1M
$-45.5M
Q2 25
$41.5M
$-46.8M
Q1 25
$56.7M
$65.6M
Q4 24
$81.8M
$63.7M
Q3 24
$54.4M
$117.9M
Q2 24
$14.4M
$-97.9M
Free Cash Flow
DIOD
DIOD
QDEL
QDEL
Q1 26
Q4 25
$12.4M
Q3 25
$62.8M
$-94.7M
Q2 25
$21.1M
$-84.3M
Q1 25
$40.8M
$9.4M
Q4 24
$62.1M
$16.5M
Q3 24
$39.4M
$71.4M
Q2 24
$-3.5M
$-133.2M
FCF Margin
DIOD
DIOD
QDEL
QDEL
Q1 26
Q4 25
3.2%
Q3 25
16.0%
-13.5%
Q2 25
5.8%
-13.7%
Q1 25
12.3%
1.4%
Q4 24
18.3%
2.3%
Q3 24
11.2%
9.8%
Q2 24
-1.1%
-20.9%
Capex Intensity
DIOD
DIOD
QDEL
QDEL
Q1 26
Q4 25
6.6%
Q3 25
4.2%
7.0%
Q2 25
5.6%
6.1%
Q1 25
4.8%
8.1%
Q4 24
5.8%
6.7%
Q3 24
4.3%
6.4%
Q2 24
5.6%
5.5%
Cash Conversion
DIOD
DIOD
QDEL
QDEL
Q1 26
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×

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%

QDEL
QDEL

Labs$353.1M57%
Immunohematology$138.3M22%
Point of Care$112.8M18%
Molecular Diagnostics$7.8M1%

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