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Side-by-side financial comparison of AMPCO PITTSBURGH CORP (AP) and InterDigital, Inc. (IDCC). Click either name above to swap in a different company.

InterDigital, Inc. is the larger business by last-quarter revenue ($158.2M vs $104.4M, roughly 1.5× AMPCO PITTSBURGH CORP). InterDigital, Inc. runs the higher net margin — 27.2% vs -55.2%, a 82.4% gap on every dollar of revenue. On growth, AMPCO PITTSBURGH CORP posted the faster year-over-year revenue change (11.5% vs -37.4%). InterDigital, Inc. produced more free cash flow last quarter ($528.6M vs $-64.0K). Over the past eight quarters, AMPCO PITTSBURGH CORP's revenue compounded faster (-2.6% CAGR vs -22.5%).

Ampco-Pittsburgh Corporation is a specialty steel manufacturer headquartered in Downtown Pittsburgh, Pennsylvania. It is one of several companies to bear the Ampco name, and it should not be confused with the Milwaukee-based copper base alloy producer, Ampco Metal Inc.; the Miami-based cabinetry company; the Swiss aluminum corporation; or the Dallas-based tool company. Ampco was formed in 1929 and is a conglomerate made up of several previously established small steel makers. Five small compa...

InterDigital, Inc. is an American technology research and development company that provides wireless and video technologies for mobile devices, networks, and services worldwide. Founded in 1972, InterDigital is listed on the Nasdaq and is included in the S&P 600 index.

AP vs IDCC — Head-to-Head

Bigger by revenue
IDCC
IDCC
1.5× larger
IDCC
$158.2M
$104.4M
AP
Growing faster (revenue YoY)
AP
AP
+48.9% gap
AP
11.5%
-37.4%
IDCC
Higher net margin
IDCC
IDCC
82.4% more per $
IDCC
27.2%
-55.2%
AP
More free cash flow
IDCC
IDCC
$528.6M more FCF
IDCC
$528.6M
$-64.0K
AP
Faster 2-yr revenue CAGR
AP
AP
Annualised
AP
-2.6%
-22.5%
IDCC

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AP
AP
IDCC
IDCC
Revenue
$104.4M
$158.2M
Net Profit
$-57.7M
$43.0M
Gross Margin
Operating Margin
-54.0%
30.2%
Net Margin
-55.2%
27.2%
Revenue YoY
11.5%
-37.4%
Net Profit YoY
-1958.9%
-67.7%
EPS (diluted)
$-2.87
$1.07

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
AP
AP
IDCC
IDCC
Q4 25
$104.4M
$158.2M
Q3 25
$103.7M
$164.7M
Q2 25
$108.9M
$300.6M
Q1 25
$99.2M
$210.5M
Q4 24
$93.6M
$252.8M
Q3 24
$92.1M
$128.7M
Q2 24
$107.1M
$223.5M
Q1 24
$110.0M
$263.5M
Net Profit
AP
AP
IDCC
IDCC
Q4 25
$-57.7M
$43.0M
Q3 25
$-2.2M
$67.5M
Q2 25
$-7.3M
$180.6M
Q1 25
$1.1M
$115.6M
Q4 24
$3.1M
$133.1M
Q3 24
$-2.0M
$34.2M
Q2 24
$2.0M
$109.7M
Q1 24
$-2.7M
$81.7M
Operating Margin
AP
AP
IDCC
IDCC
Q4 25
-54.0%
30.2%
Q3 25
1.1%
46.0%
Q2 25
-2.8%
68.3%
Q1 25
3.9%
62.6%
Q4 24
5.5%
64.3%
Q3 24
2.0%
30.6%
Q2 24
4.7%
59.9%
Q1 24
0.1%
39.4%
Net Margin
AP
AP
IDCC
IDCC
Q4 25
-55.2%
27.2%
Q3 25
-2.1%
41.0%
Q2 25
-6.7%
60.1%
Q1 25
1.2%
54.9%
Q4 24
3.3%
52.7%
Q3 24
-2.1%
26.6%
Q2 24
1.9%
49.1%
Q1 24
-2.5%
31.0%
EPS (diluted)
AP
AP
IDCC
IDCC
Q4 25
$-2.87
$1.07
Q3 25
$-0.11
$1.93
Q2 25
$-0.36
$5.35
Q1 25
$0.06
$3.45
Q4 24
$0.16
$4.12
Q3 24
$-0.10
$1.14
Q2 24
$0.10
$3.93
Q1 24
$-0.14
$2.88

Balance Sheet & Financial Strength

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

Metric
AP
AP
IDCC
IDCC
Cash + ST InvestmentsLiquidity on hand
$10.7M
$1.2B
Total DebtLower is stronger
$117.9M
$16.3M
Stockholders' EquityBook value
$32.6M
$1.1B
Total Assets
$495.4M
$2.1B
Debt / EquityLower = less leverage
3.61×
0.01×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AP
AP
IDCC
IDCC
Q4 25
$10.7M
$1.2B
Q3 25
$15.0M
$1.3B
Q2 25
$9.9M
$937.0M
Q1 25
$7.1M
$883.3M
Q4 24
$15.4M
$958.2M
Q3 24
$11.8M
$813.2M
Q2 24
$7.9M
$760.3M
Q1 24
$10.8M
$984.6M
Total Debt
AP
AP
IDCC
IDCC
Q4 25
$117.9M
$16.3M
Q3 25
$119.0M
$17.1M
Q2 25
$115.9M
$16.6M
Q1 25
$115.0M
$16.0M
Q4 24
$116.4M
$15.4M
Q3 24
$116.0M
$18.3M
Q2 24
$119.4M
$17.7M
Q1 24
$116.2M
$28.0M
Stockholders' Equity
AP
AP
IDCC
IDCC
Q4 25
$32.6M
$1.1B
Q3 25
$60.1M
$1.1B
Q2 25
$62.7M
$1.1B
Q1 25
$64.6M
$936.9M
Q4 24
$58.9M
$857.2M
Q3 24
$61.3M
$722.5M
Q2 24
$58.0M
$696.8M
Q1 24
$56.3M
$624.3M
Total Assets
AP
AP
IDCC
IDCC
Q4 25
$495.4M
$2.1B
Q3 25
$524.4M
$2.1B
Q2 25
$537.2M
$2.0B
Q1 25
$536.2M
$1.9B
Q4 24
$530.9M
$1.8B
Q3 24
$547.4M
$1.7B
Q2 24
$560.8M
$1.6B
Q1 24
$565.8M
$1.8B
Debt / Equity
AP
AP
IDCC
IDCC
Q4 25
3.61×
0.01×
Q3 25
1.98×
0.02×
Q2 25
1.85×
0.02×
Q1 25
1.78×
0.02×
Q4 24
1.98×
0.02×
Q3 24
1.89×
0.03×
Q2 24
2.06×
0.03×
Q1 24
2.06×
0.04×

Cash Flow & Capital Efficiency

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

Metric
AP
AP
IDCC
IDCC
Operating Cash FlowLast quarter
$2.7M
$544.5M
Free Cash FlowOCF − Capex
$-64.0K
$528.6M
FCF MarginFCF / Revenue
-0.1%
334.0%
Capex IntensityCapex / Revenue
2.7%
10.0%
Cash ConversionOCF / Net Profit
12.67×
TTM Free Cash FlowTrailing 4 quarters
$-8.1M
$994.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AP
AP
IDCC
IDCC
Q4 25
$2.7M
$544.5M
Q3 25
$6.3M
$395.9M
Q2 25
$-2.3M
$105.1M
Q1 25
$-5.3M
$-20.0M
Q4 24
$7.5M
$271.5M
Q3 24
$11.4M
$77.6M
Q2 24
$-5.3M
$-48.9M
Q1 24
$4.5M
$50.8M
Free Cash Flow
AP
AP
IDCC
IDCC
Q4 25
$-64.0K
$528.6M
Q3 25
$3.3M
$395.3M
Q2 25
$-3.8M
$104.5M
Q1 25
$-7.5M
$-34.5M
Q4 24
$3.7M
$265.7M
Q3 24
$8.4M
$76.7M
Q2 24
$-8.0M
$-49.5M
Q1 24
$1.7M
$50.3M
FCF Margin
AP
AP
IDCC
IDCC
Q4 25
-0.1%
334.0%
Q3 25
3.2%
240.1%
Q2 25
-3.5%
34.8%
Q1 25
-7.5%
-16.4%
Q4 24
4.0%
105.1%
Q3 24
9.1%
59.6%
Q2 24
-7.5%
-22.1%
Q1 24
1.5%
19.1%
Capex Intensity
AP
AP
IDCC
IDCC
Q4 25
2.7%
10.0%
Q3 25
2.9%
0.4%
Q2 25
1.3%
0.2%
Q1 25
2.2%
6.9%
Q4 24
4.0%
2.3%
Q3 24
3.2%
0.7%
Q2 24
2.5%
0.3%
Q1 24
2.6%
0.2%
Cash Conversion
AP
AP
IDCC
IDCC
Q4 25
12.67×
Q3 25
5.87×
Q2 25
0.58×
Q1 25
-4.62×
-0.17×
Q4 24
2.40×
2.04×
Q3 24
2.27×
Q2 24
-2.64×
-0.45×
Q1 24
0.62×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AP
AP

Forged And Cast Mill Rolls$67.0M64%
Air Handling Systems$14.3M14%
Heat Exchange Coils$13.1M13%
Centrifugal Pumps$10.3M10%
Forged Engineered Products$4.0M4%

IDCC
IDCC

Segment breakdown not available.

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