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Side-by-side financial comparison of PDF SOLUTIONS INC (PDFS) and TWIN DISC INC (TWIN). Click either name above to swap in a different company.

TWIN DISC INC is the larger business by last-quarter revenue ($90.2M vs $62.4M, roughly 1.4× PDF SOLUTIONS INC). TWIN DISC INC runs the higher net margin — 24.8% vs -0.1%, a 24.9% gap on every dollar of revenue. On growth, PDF SOLUTIONS INC posted the faster year-over-year revenue change (24.6% vs 0.3%). PDF SOLUTIONS INC produced more free cash flow last quarter ($7.5M vs $1.2M). Over the past eight quarters, PDF SOLUTIONS INC's revenue compounded faster (22.9% CAGR vs 10.3%).

PDF Solutions, Inc. is an American multinational software and engineering services company based in Santa Clara, California. The company is listed in the Nasdaq stock exchange under the ticker symbol PDFS.

Twin Disc, Inc. designs, manufactures, and distributes power transmission equipment for a wide range of applications, including marine, off-road vehicle, and industrial. The company was founded in 1918 to manufacture clutches for farm tractors. It is now a worldwide company with subsidiaries or sales offices in Asia, Europe, North America, Oceania, and South America.

PDFS vs TWIN — Head-to-Head

Bigger by revenue
TWIN
TWIN
1.4× larger
TWIN
$90.2M
$62.4M
PDFS
Growing faster (revenue YoY)
PDFS
PDFS
+24.3% gap
PDFS
24.6%
0.3%
TWIN
Higher net margin
TWIN
TWIN
24.9% more per $
TWIN
24.8%
-0.1%
PDFS
More free cash flow
PDFS
PDFS
$6.3M more FCF
PDFS
$7.5M
$1.2M
TWIN
Faster 2-yr revenue CAGR
PDFS
PDFS
Annualised
PDFS
22.9%
10.3%
TWIN

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
PDFS
PDFS
TWIN
TWIN
Revenue
$62.4M
$90.2M
Net Profit
$-48.0K
$22.4M
Gross Margin
72.9%
24.8%
Operating Margin
5.5%
2.3%
Net Margin
-0.1%
24.8%
Revenue YoY
24.6%
0.3%
Net Profit YoY
-108.9%
2334.3%
EPS (diluted)
$0.00
$1.55

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
PDFS
PDFS
TWIN
TWIN
Q4 25
$62.4M
$90.2M
Q3 25
$57.1M
$80.0M
Q2 25
$51.7M
$96.7M
Q1 25
$47.8M
$81.2M
Q4 24
$50.1M
$89.9M
Q3 24
$46.4M
$72.9M
Q2 24
$41.7M
$84.4M
Q1 24
$41.3M
$74.2M
Net Profit
PDFS
PDFS
TWIN
TWIN
Q4 25
$-48.0K
$22.4M
Q3 25
$1.3M
$-518.0K
Q2 25
$1.1M
$1.4M
Q1 25
$-3.0M
$-1.5M
Q4 24
$539.0K
$919.0K
Q3 24
$2.2M
$-2.8M
Q2 24
$1.7M
$7.4M
Q1 24
$-393.0K
$3.8M
Gross Margin
PDFS
PDFS
TWIN
TWIN
Q4 25
72.9%
24.8%
Q3 25
72.3%
28.7%
Q2 25
71.2%
31.0%
Q1 25
72.9%
26.7%
Q4 24
68.3%
24.1%
Q3 24
73.1%
26.5%
Q2 24
70.6%
29.7%
Q1 24
67.3%
28.2%
Operating Margin
PDFS
PDFS
TWIN
TWIN
Q4 25
5.5%
2.3%
Q3 25
8.5%
2.8%
Q2 25
2.2%
5.5%
Q1 25
-7.4%
2.4%
Q4 24
1.0%
3.1%
Q3 24
4.6%
-0.2%
Q2 24
0.6%
5.6%
Q1 24
-4.7%
4.9%
Net Margin
PDFS
PDFS
TWIN
TWIN
Q4 25
-0.1%
24.8%
Q3 25
2.3%
-0.6%
Q2 25
2.2%
1.5%
Q1 25
-6.3%
-1.8%
Q4 24
1.1%
1.0%
Q3 24
4.8%
-3.8%
Q2 24
4.1%
8.8%
Q1 24
-1.0%
5.2%
EPS (diluted)
PDFS
PDFS
TWIN
TWIN
Q4 25
$0.00
$1.55
Q3 25
$0.03
$-0.04
Q2 25
$0.03
$0.10
Q1 25
$-0.08
$-0.11
Q4 24
$0.01
$0.07
Q3 24
$0.06
$-0.20
Q2 24
$0.04
$0.54
Q1 24
$-0.01
$0.27

Balance Sheet & Financial Strength

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

Metric
PDFS
PDFS
TWIN
TWIN
Cash + ST InvestmentsLiquidity on hand
$42.2M
Total DebtLower is stronger
$67.0M
$44.5M
Stockholders' EquityBook value
$271.0M
$184.5M
Total Assets
$418.7M
$384.0M
Debt / EquityLower = less leverage
0.25×
0.24×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
PDFS
PDFS
TWIN
TWIN
Q4 25
$42.2M
Q3 25
$35.9M
Q2 25
$40.4M
Q1 25
$54.1M
Q4 24
$114.9M
Q3 24
$120.2M
Q2 24
$117.9M
Q1 24
$122.9M
Total Debt
PDFS
PDFS
TWIN
TWIN
Q4 25
$67.0M
$44.5M
Q3 25
$67.6M
$43.7M
Q2 25
$68.1M
$31.4M
Q1 25
$68.7M
$40.8M
Q4 24
$24.9M
Q3 24
$29.8M
Q2 24
$25.8M
Q1 24
$17.0M
Stockholders' Equity
PDFS
PDFS
TWIN
TWIN
Q4 25
$271.0M
$184.5M
Q3 25
$264.4M
$160.3M
Q2 25
$257.5M
$164.0M
Q1 25
$249.0M
$149.5M
Q4 24
$246.0M
$147.0M
Q3 24
$240.5M
$157.5M
Q2 24
$232.2M
$154.7M
Q1 24
$225.4M
$146.3M
Total Assets
PDFS
PDFS
TWIN
TWIN
Q4 25
$418.7M
$384.0M
Q3 25
$406.4M
$363.5M
Q2 25
$391.1M
$355.6M
Q1 25
$390.0M
$332.9M
Q4 24
$315.3M
$307.4M
Q3 24
$307.4M
$323.5M
Q2 24
$298.0M
$312.1M
Q1 24
$286.8M
$288.8M
Debt / Equity
PDFS
PDFS
TWIN
TWIN
Q4 25
0.25×
0.24×
Q3 25
0.26×
0.27×
Q2 25
0.26×
0.19×
Q1 25
0.28×
0.27×
Q4 24
0.17×
Q3 24
0.19×
Q2 24
0.17×
Q1 24
0.12×

Cash Flow & Capital Efficiency

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

Metric
PDFS
PDFS
TWIN
TWIN
Operating Cash FlowLast quarter
$17.3M
$4.6M
Free Cash FlowOCF − Capex
$7.5M
$1.2M
FCF MarginFCF / Revenue
12.1%
1.4%
Capex IntensityCapex / Revenue
15.7%
3.7%
Cash ConversionOCF / Net Profit
0.20×
TTM Free Cash FlowTrailing 4 quarters
$-8.6M
$-70.0K

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
PDFS
PDFS
TWIN
TWIN
Q4 25
$17.3M
$4.6M
Q3 25
$3.3M
$-7.5M
Q2 25
$-5.2M
$16.4M
Q1 25
$8.6M
$3.2M
Q4 24
$1.6M
$8.7M
Q3 24
$9.3M
$-4.3M
Q2 24
$684.0K
$11.4M
Q1 24
$-1.9M
$6.2M
Free Cash Flow
PDFS
PDFS
TWIN
TWIN
Q4 25
$7.5M
$1.2M
Q3 25
$-2.9M
$-11.0M
Q2 25
$-13.8M
$8.7M
Q1 25
$535.0K
$906.0K
Q4 24
$-4.0M
$5.9M
Q3 24
$5.1M
$-6.7M
Q2 24
$-4.6M
$10.3M
Q1 24
$-3.9M
$4.0M
FCF Margin
PDFS
PDFS
TWIN
TWIN
Q4 25
12.1%
1.4%
Q3 25
-5.1%
-13.7%
Q2 25
-26.6%
9.0%
Q1 25
1.1%
1.1%
Q4 24
-8.0%
6.5%
Q3 24
11.0%
-9.2%
Q2 24
-11.1%
12.2%
Q1 24
-9.4%
5.5%
Capex Intensity
PDFS
PDFS
TWIN
TWIN
Q4 25
15.7%
3.7%
Q3 25
10.8%
4.3%
Q2 25
16.5%
8.0%
Q1 25
17.0%
2.8%
Q4 24
11.3%
3.1%
Q3 24
9.0%
3.2%
Q2 24
12.8%
1.3%
Q1 24
4.9%
2.9%
Cash Conversion
PDFS
PDFS
TWIN
TWIN
Q4 25
0.20×
Q3 25
2.54×
Q2 25
-4.55×
11.55×
Q1 25
Q4 24
2.98×
9.42×
Q3 24
4.20×
Q2 24
0.40×
1.54×
Q1 24
1.63×

Financial Flow Comparison

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

Revenue Breakdown by Segment

PDFS
PDFS

Volumebased$38.0M61%
Other$24.4M39%

TWIN
TWIN

Segment breakdown not available.

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