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Side-by-side financial comparison of NPK International Inc. (NPKI) and POWER INTEGRATIONS INC (POWI). Click either name above to swap in a different company.

POWER INTEGRATIONS INC is the larger business by last-quarter revenue ($103.2M vs $75.2M, roughly 1.4× NPK International Inc.). On growth, NPK International Inc. posted the faster year-over-year revenue change (30.7% vs -1.9%). POWER INTEGRATIONS INC produced more free cash flow last quarter ($19.2M vs $5.8M). Over the past eight quarters, NPK International Inc.'s revenue compounded faster (23.9% CAGR vs 6.1%).

American Electric Power Company, Inc. is an American domestic electric utility company in the United States. It is one of the largest electric utility companies in the country, with more than five million customers in 11 states.

NPKI vs POWI — Head-to-Head

Bigger by revenue
POWI
POWI
1.4× larger
POWI
$103.2M
$75.2M
NPKI
Growing faster (revenue YoY)
NPKI
NPKI
+32.7% gap
NPKI
30.7%
-1.9%
POWI
More free cash flow
POWI
POWI
$13.4M more FCF
POWI
$19.2M
$5.8M
NPKI
Faster 2-yr revenue CAGR
NPKI
NPKI
Annualised
NPKI
23.9%
6.1%
POWI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
NPKI
NPKI
POWI
POWI
Revenue
$75.2M
$103.2M
Net Profit
$13.3M
Gross Margin
37.7%
52.9%
Operating Margin
16.7%
8.5%
Net Margin
12.9%
Revenue YoY
30.7%
-1.9%
Net Profit YoY
45.4%
EPS (diluted)
$0.17
$0.24

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
NPKI
NPKI
POWI
POWI
Q4 25
$75.2M
$103.2M
Q3 25
$68.8M
$118.9M
Q2 25
$68.2M
$115.9M
Q1 25
$64.8M
$105.5M
Q4 24
$57.5M
$105.3M
Q3 24
$44.2M
$115.8M
Q2 24
$66.8M
$106.2M
Q1 24
$49.0M
$91.7M
Net Profit
NPKI
NPKI
POWI
POWI
Q4 25
$13.3M
Q3 25
$5.7M
$-1.4M
Q2 25
$8.7M
$1.4M
Q1 25
$10.0M
$8.8M
Q4 24
$9.1M
Q3 24
$-174.3M
$14.3M
Q2 24
$8.0M
$4.8M
Q1 24
$7.3M
$4.0M
Gross Margin
NPKI
NPKI
POWI
POWI
Q4 25
37.7%
52.9%
Q3 25
31.9%
54.5%
Q2 25
36.9%
55.2%
Q1 25
39.0%
55.2%
Q4 24
39.2%
54.4%
Q3 24
27.5%
54.5%
Q2 24
37.2%
53.2%
Q1 24
36.0%
52.1%
Operating Margin
NPKI
NPKI
POWI
POWI
Q4 25
16.7%
8.5%
Q3 25
13.2%
-3.3%
Q2 25
17.0%
-1.2%
Q1 25
20.9%
6.4%
Q4 24
20.2%
3.7%
Q3 24
2.8%
10.0%
Q2 24
18.7%
1.8%
Q1 24
14.2%
0.5%
Net Margin
NPKI
NPKI
POWI
POWI
Q4 25
12.9%
Q3 25
8.2%
-1.1%
Q2 25
12.7%
1.2%
Q1 25
15.4%
8.3%
Q4 24
8.7%
Q3 24
-394.3%
12.3%
Q2 24
12.0%
4.6%
Q1 24
14.9%
4.3%
EPS (diluted)
NPKI
NPKI
POWI
POWI
Q4 25
$0.17
$0.24
Q3 25
$0.07
$-0.02
Q2 25
$0.10
$0.02
Q1 25
$0.11
$0.15
Q4 24
$0.10
$0.15
Q3 24
$-1.99
$0.25
Q2 24
$0.09
$0.09
Q1 24
$0.08
$0.07

Balance Sheet & Financial Strength

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

Metric
NPKI
NPKI
POWI
POWI
Cash + ST InvestmentsLiquidity on hand
$5.1M
$249.5M
Total DebtLower is stronger
$16.9M
Stockholders' EquityBook value
$351.2M
$672.8M
Total Assets
$441.8M
$772.2M
Debt / EquityLower = less leverage
0.05×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NPKI
NPKI
POWI
POWI
Q4 25
$5.1M
$249.5M
Q3 25
$35.6M
$241.9M
Q2 25
$26.0M
$268.7M
Q1 25
$20.8M
$289.3M
Q4 24
$17.8M
$300.0M
Q3 24
$42.9M
$303.8M
Q2 24
$35.1M
$290.5M
Q1 24
$37.7M
$299.6M
Total Debt
NPKI
NPKI
POWI
POWI
Q4 25
$16.9M
Q3 25
$9.5M
Q2 25
$9.3M
Q1 25
$8.1M
Q4 24
$7.7M
Q3 24
$14.0M
Q2 24
$58.0M
Q1 24
$77.4M
Stockholders' Equity
NPKI
NPKI
POWI
POWI
Q4 25
$351.2M
$672.8M
Q3 25
$333.9M
$672.0M
Q2 25
$328.8M
$703.8M
Q1 25
$326.9M
$735.8M
Q4 24
$326.5M
$749.8M
Q3 24
$316.5M
$749.2M
Q2 24
$426.6M
$730.7M
Q1 24
$421.6M
$738.2M
Total Assets
NPKI
NPKI
POWI
POWI
Q4 25
$441.8M
$772.2M
Q3 25
$404.5M
$772.5M
Q2 25
$393.7M
$797.5M
Q1 25
$390.0M
$814.4M
Q4 24
$393.7M
$828.8M
Q3 24
$389.6M
$825.0M
Q2 24
$624.8M
$804.8M
Q1 24
$640.8M
$805.8M
Debt / Equity
NPKI
NPKI
POWI
POWI
Q4 25
0.05×
Q3 25
0.03×
Q2 25
0.03×
Q1 25
0.02×
Q4 24
0.02×
Q3 24
0.04×
Q2 24
0.14×
Q1 24
0.18×

Cash Flow & Capital Efficiency

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

Metric
NPKI
NPKI
POWI
POWI
Operating Cash FlowLast quarter
$18.0M
$26.2M
Free Cash FlowOCF − Capex
$5.8M
$19.2M
FCF MarginFCF / Revenue
7.6%
18.6%
Capex IntensityCapex / Revenue
16.3%
6.8%
Cash ConversionOCF / Net Profit
1.97×
TTM Free Cash FlowTrailing 4 quarters
$26.3M
$87.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NPKI
NPKI
POWI
POWI
Q4 25
$18.0M
$26.2M
Q3 25
$24.7M
$29.9M
Q2 25
$21.4M
$29.1M
Q1 25
$8.8M
$26.4M
Q4 24
$-4.1M
$14.7M
Q3 24
$2.8M
$32.9M
Q2 24
$27.6M
$17.6M
Q1 24
$11.9M
$15.9M
Free Cash Flow
NPKI
NPKI
POWI
POWI
Q4 25
$5.8M
$19.2M
Q3 25
$12.0M
$24.2M
Q2 25
$9.7M
$23.1M
Q1 25
$-1.2M
$20.7M
Q4 24
$-17.7M
$11.7M
Q3 24
$-6.7M
$27.2M
Q2 24
$21.0M
$13.5M
Q1 24
$-1.9M
$11.6M
FCF Margin
NPKI
NPKI
POWI
POWI
Q4 25
7.6%
18.6%
Q3 25
17.4%
20.3%
Q2 25
14.3%
20.0%
Q1 25
-1.8%
19.6%
Q4 24
-30.8%
11.1%
Q3 24
-15.2%
23.5%
Q2 24
31.4%
12.7%
Q1 24
-3.9%
12.6%
Capex Intensity
NPKI
NPKI
POWI
POWI
Q4 25
16.3%
6.8%
Q3 25
18.5%
4.8%
Q2 25
17.1%
5.1%
Q1 25
15.5%
5.4%
Q4 24
23.6%
2.9%
Q3 24
21.4%
4.9%
Q2 24
9.9%
3.9%
Q1 24
28.3%
4.7%
Cash Conversion
NPKI
NPKI
POWI
POWI
Q4 25
1.97×
Q3 25
4.37×
Q2 25
2.47×
21.24×
Q1 25
0.88×
3.00×
Q4 24
1.61×
Q3 24
2.30×
Q2 24
3.43×
3.64×
Q1 24
1.64×
4.02×

Financial Flow Comparison

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

Revenue Breakdown by Segment

NPKI
NPKI

Rental Revenue$34.8M46%
Products$25.5M34%
Services$14.9M20%

POWI
POWI

Distributors$65.8M64%
Other$10.3M10%
KR$9.3M9%
DE$7.1M7%
TW$5.5M5%
Emea Other Than Germany$5.3M5%

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