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

DIODES INC is the larger business by last-quarter revenue ($391.6M vs $203.3M, roughly 1.9× IONIS PHARMACEUTICALS INC). DIODES INC runs the higher net margin — 2.6% vs -112.8%, a 115.4% gap on every dollar of revenue. On growth, DIODES INC posted the faster year-over-year revenue change (15.4% vs -10.3%). DIODES INC produced more free cash flow last quarter ($12.4M vs $-159.0M). Over the past eight quarters, IONIS PHARMACEUTICALS INC's revenue compounded faster (30.4% 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.

Ionis Pharmaceuticals, Inc. is a biotechnology company that specializes in discovering and developing antisense therapy, as well as RNA interference and CRISPR therapeutics. The company was founded in 1989 is based in Carlsbad, California. The company was previously known as Isis Pharmaceuticals until December 2015.

DIOD vs IONS — Head-to-Head

Bigger by revenue
DIOD
DIOD
1.9× larger
DIOD
$391.6M
$203.3M
IONS
Growing faster (revenue YoY)
DIOD
DIOD
+25.7% gap
DIOD
15.4%
-10.3%
IONS
Higher net margin
DIOD
DIOD
115.4% more per $
DIOD
2.6%
-112.8%
IONS
More free cash flow
DIOD
DIOD
$171.4M more FCF
DIOD
$12.4M
$-159.0M
IONS
Faster 2-yr revenue CAGR
IONS
IONS
Annualised
IONS
30.4%
13.9%
DIOD

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
DIOD
DIOD
IONS
IONS
Revenue
$391.6M
$203.3M
Net Profit
$10.2M
$-229.4M
Gross Margin
31.1%
96.1%
Operating Margin
3.4%
-105.5%
Net Margin
2.6%
-112.8%
Revenue YoY
15.4%
-10.3%
Net Profit YoY
23.8%
-119.8%
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
IONS
IONS
Q4 25
$391.6M
$203.3M
Q3 25
$392.2M
$156.7M
Q2 25
$366.2M
$452.0M
Q1 25
$332.1M
$131.6M
Q4 24
$339.3M
$226.6M
Q3 24
$350.1M
$133.8M
Q2 24
$319.8M
$225.3M
Q1 24
$302.0M
$119.5M
Net Profit
DIOD
DIOD
IONS
IONS
Q4 25
$10.2M
$-229.4M
Q3 25
$14.3M
$-128.6M
Q2 25
$46.1M
$123.6M
Q1 25
$-4.4M
$-146.9M
Q4 24
$8.2M
$-104.3M
Q3 24
$13.7M
$-140.5M
Q2 24
$8.0M
$-66.3M
Q1 24
$14.0M
$-142.8M
Gross Margin
DIOD
DIOD
IONS
IONS
Q4 25
31.1%
96.1%
Q3 25
30.7%
98.5%
Q2 25
31.5%
99.1%
Q1 25
31.5%
98.9%
Q4 24
32.7%
98.3%
Q3 24
33.7%
99.2%
Q2 24
33.6%
98.2%
Q1 24
33.0%
98.2%
Operating Margin
DIOD
DIOD
IONS
IONS
Q4 25
3.4%
-105.5%
Q3 25
3.0%
-102.2%
Q2 25
2.6%
30.9%
Q1 25
0.4%
-111.6%
Q4 24
3.5%
-48.9%
Q3 24
6.2%
-111.1%
Q2 24
1.2%
-29.3%
Q1 24
4.3%
-125.1%
Net Margin
DIOD
DIOD
IONS
IONS
Q4 25
2.6%
-112.8%
Q3 25
3.6%
-82.1%
Q2 25
12.6%
27.3%
Q1 25
-1.3%
-111.6%
Q4 24
2.4%
-46.1%
Q3 24
3.9%
-105.0%
Q2 24
2.5%
-29.4%
Q1 24
4.6%
-119.5%
EPS (diluted)
DIOD
DIOD
IONS
IONS
Q4 25
$0.23
$-1.35
Q3 25
$0.31
$-0.80
Q2 25
$0.99
$0.70
Q1 25
$-0.10
$-0.93
Q4 24
$0.18
$-0.66
Q3 24
$0.30
$-0.95
Q2 24
$0.17
$-0.45
Q1 24
$0.30
$-0.98

Balance Sheet & Financial Strength

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

Metric
DIOD
DIOD
IONS
IONS
Cash + ST InvestmentsLiquidity on hand
$377.0M
$2.7B
Total DebtLower is stronger
$25.7M
$1.8B
Stockholders' EquityBook value
$1.9B
$489.1M
Total Assets
$2.4B
$3.5B
Debt / EquityLower = less leverage
0.01×
3.71×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DIOD
DIOD
IONS
IONS
Q4 25
$377.0M
$2.7B
Q3 25
$386.4M
$2.2B
Q2 25
$327.3M
$2.3B
Q1 25
$343.9M
$2.1B
Q4 24
$316.1M
$2.3B
Q3 24
$319.3M
$2.5B
Q2 24
$273.9M
$2.1B
Q1 24
$276.0M
$2.2B
Total Debt
DIOD
DIOD
IONS
IONS
Q4 25
$25.7M
$1.8B
Q3 25
$24.9M
Q2 25
$26.4M
Q1 25
$20.5M
Q4 24
$20.7M
$1.3B
Q3 24
$22.2M
Q2 24
$20.3M
Q1 24
$20.9M
Stockholders' Equity
DIOD
DIOD
IONS
IONS
Q4 25
$1.9B
$489.1M
Q3 25
$1.9B
$618.0M
Q2 25
$1.9B
$631.7M
Q1 25
$1.8B
$475.7M
Q4 24
$1.8B
$588.4M
Q3 24
$1.8B
$662.5M
Q2 24
$1.8B
$263.7M
Q1 24
$1.7B
$296.5M
Total Assets
DIOD
DIOD
IONS
IONS
Q4 25
$2.4B
$3.5B
Q3 25
$2.5B
$3.0B
Q2 25
$2.5B
$3.0B
Q1 25
$2.4B
$2.8B
Q4 24
$2.4B
$3.0B
Q3 24
$2.4B
$3.1B
Q2 24
$2.4B
$2.7B
Q1 24
$2.4B
$2.8B
Debt / Equity
DIOD
DIOD
IONS
IONS
Q4 25
0.01×
3.71×
Q3 25
0.01×
Q2 25
0.01×
Q1 25
0.01×
Q4 24
0.01×
2.13×
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
IONS
IONS
Operating Cash FlowLast quarter
$38.1M
$-137.7M
Free Cash FlowOCF − Capex
$12.4M
$-159.0M
FCF MarginFCF / Revenue
3.2%
-78.2%
Capex IntensityCapex / Revenue
6.6%
10.5%
Cash ConversionOCF / Net Profit
3.74×
TTM Free Cash FlowTrailing 4 quarters
$137.2M
$-320.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DIOD
DIOD
IONS
IONS
Q4 25
$38.1M
$-137.7M
Q3 25
$79.1M
$-131.4M
Q2 25
$41.5M
$151.3M
Q1 25
$56.7M
$-150.8M
Q4 24
$81.8M
$-116.1M
Q3 24
$54.4M
$-115.0M
Q2 24
$14.4M
$-119.9M
Q1 24
$-31.1M
$-149.9M
Free Cash Flow
DIOD
DIOD
IONS
IONS
Q4 25
$12.4M
$-159.0M
Q3 25
$62.8M
$-136.7M
Q2 25
$21.1M
$139.0M
Q1 25
$40.8M
$-163.4M
Q4 24
$62.1M
$-141.6M
Q3 24
$39.4M
$-124.0M
Q2 24
$-3.5M
$-126.1M
Q1 24
$-51.5M
$-154.4M
FCF Margin
DIOD
DIOD
IONS
IONS
Q4 25
3.2%
-78.2%
Q3 25
16.0%
-87.2%
Q2 25
5.8%
30.8%
Q1 25
12.3%
-124.1%
Q4 24
18.3%
-62.5%
Q3 24
11.2%
-92.7%
Q2 24
-1.1%
-56.0%
Q1 24
-17.1%
-129.2%
Capex Intensity
DIOD
DIOD
IONS
IONS
Q4 25
6.6%
10.5%
Q3 25
4.2%
3.4%
Q2 25
5.6%
2.7%
Q1 25
4.8%
9.6%
Q4 24
5.8%
11.3%
Q3 24
4.3%
6.8%
Q2 24
5.6%
2.8%
Q1 24
6.7%
3.8%
Cash Conversion
DIOD
DIOD
IONS
IONS
Q4 25
3.74×
Q3 25
5.54×
Q2 25
0.90×
1.22×
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%

IONS
IONS

Products$58.0M29%
Spinraza Royalties$54.0M27%
Collaborative Agreement Revenue$52.4M26%
Wainus Royalties$16.0M8%
Wainua Joint Development Revenue$9.6M5%
Other Commercial$7.6M4%
Other Royalties$5.7M3%

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