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Side-by-side financial comparison of POWER INTEGRATIONS INC (POWI) and Solaris Energy Infrastructure, Inc. (SEI). Click either name above to swap in a different company.

Solaris Energy Infrastructure, Inc. is the larger business by last-quarter revenue ($196.2M vs $103.2M, roughly 1.9× POWER INTEGRATIONS INC). Solaris Energy Infrastructure, Inc. runs the higher net margin — 16.3% vs 12.9%, a 3.5% gap on every dollar of revenue. On growth, Solaris Energy Infrastructure, Inc. posted the faster year-over-year revenue change (9.2% vs -1.9%). Over the past eight quarters, Solaris Energy Infrastructure, Inc.'s revenue compounded faster (63.0% 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.

AGL Energy Ltd is an Australian listed public company involved in both the generation and retailing of electricity and gas for residential and commercial use. It is one of the "big three" retailers in the National Electricity Market. AGL is Australia's largest electricity generator, and the nation's largest carbon emitter.

POWI vs SEI — Head-to-Head

Bigger by revenue
SEI
SEI
1.9× larger
SEI
$196.2M
$103.2M
POWI
Growing faster (revenue YoY)
SEI
SEI
+11.1% gap
SEI
9.2%
-1.9%
POWI
Higher net margin
SEI
SEI
3.5% more per $
SEI
16.3%
12.9%
POWI
Faster 2-yr revenue CAGR
SEI
SEI
Annualised
SEI
63.0%
6.1%
POWI

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
POWI
POWI
SEI
SEI
Revenue
$103.2M
$196.2M
Net Profit
$13.3M
$32.1M
Gross Margin
52.9%
Operating Margin
8.5%
25.8%
Net Margin
12.9%
16.3%
Revenue YoY
-1.9%
9.2%
Net Profit YoY
45.4%
1013.5%
EPS (diluted)
$0.24
$0.32

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
POWI
POWI
SEI
SEI
Q1 26
$196.2M
Q4 25
$103.2M
$179.7M
Q3 25
$118.9M
$166.8M
Q2 25
$115.9M
$149.3M
Q1 25
$105.5M
$126.3M
Q4 24
$105.3M
$96.3M
Q3 24
$115.8M
$75.0M
Q2 24
$106.2M
$73.9M
Net Profit
POWI
POWI
SEI
SEI
Q1 26
$32.1M
Q4 25
$13.3M
$-1.7M
Q3 25
$-1.4M
$14.6M
Q2 25
$1.4M
$12.0M
Q1 25
$8.8M
$5.3M
Q4 24
$9.1M
$6.3M
Q3 24
$14.3M
$-968.0K
Q2 24
$4.8M
$6.2M
Gross Margin
POWI
POWI
SEI
SEI
Q1 26
Q4 25
52.9%
Q3 25
54.5%
Q2 25
55.2%
Q1 25
55.2%
Q4 24
54.4%
Q3 24
54.5%
Q2 24
53.2%
Operating Margin
POWI
POWI
SEI
SEI
Q1 26
25.8%
Q4 25
8.5%
22.2%
Q3 25
-3.3%
22.7%
Q2 25
-1.2%
23.8%
Q1 25
6.4%
17.5%
Q4 24
3.7%
26.7%
Q3 24
10.0%
7.0%
Q2 24
1.8%
16.0%
Net Margin
POWI
POWI
SEI
SEI
Q1 26
16.3%
Q4 25
12.9%
-0.9%
Q3 25
-1.1%
8.7%
Q2 25
1.2%
8.0%
Q1 25
8.3%
4.2%
Q4 24
8.7%
6.5%
Q3 24
12.3%
-1.3%
Q2 24
4.6%
8.4%
EPS (diluted)
POWI
POWI
SEI
SEI
Q1 26
$0.32
Q4 25
$0.24
Q3 25
$-0.02
Q2 25
$0.02
Q1 25
$0.15
Q4 24
$0.15
Q3 24
$0.25
Q2 24
$0.09

Balance Sheet & Financial Strength

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

Metric
POWI
POWI
SEI
SEI
Cash + ST InvestmentsLiquidity on hand
$249.5M
$344.5M
Total DebtLower is stronger
$395.4M
Stockholders' EquityBook value
$672.8M
Total Assets
$772.2M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
POWI
POWI
SEI
SEI
Q1 26
$344.5M
Q4 25
$249.5M
$353.3M
Q3 25
$241.9M
$106.7M
Q2 25
$268.7M
$99.6M
Q1 25
$289.3M
$16.7M
Q4 24
$300.0M
$114.3M
Q3 24
$303.8M
$18.6M
Q2 24
$290.5M
$5.1M
Total Debt
POWI
POWI
SEI
SEI
Q1 26
$395.4M
Q4 25
$184.0M
Q3 25
$382.8M
Q2 25
$386.2M
Q1 25
$316.2M
Q4 24
$315.7M
Q3 24
$315.3M
Q2 24
Stockholders' Equity
POWI
POWI
SEI
SEI
Q1 26
Q4 25
$672.8M
$564.3M
Q3 25
$672.0M
$546.6M
Q2 25
$703.8M
$399.1M
Q1 25
$735.8M
$361.3M
Q4 24
$749.8M
$355.6M
Q3 24
$749.2M
$221.7M
Q2 24
$730.7M
$204.6M
Total Assets
POWI
POWI
SEI
SEI
Q1 26
Q4 25
$772.2M
$2.1B
Q3 25
$772.5M
$1.6B
Q2 25
$797.5M
$1.5B
Q1 25
$814.4M
$1.1B
Q4 24
$828.8M
$1.1B
Q3 24
$825.0M
$939.5M
Q2 24
$804.8M
$457.8M
Debt / Equity
POWI
POWI
SEI
SEI
Q1 26
Q4 25
0.33×
Q3 25
0.70×
Q2 25
0.97×
Q1 25
0.88×
Q4 24
0.89×
Q3 24
1.42×
Q2 24

Cash Flow & Capital Efficiency

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

Metric
POWI
POWI
SEI
SEI
Operating Cash FlowLast quarter
$26.2M
Free Cash FlowOCF − Capex
$19.2M
FCF MarginFCF / Revenue
18.6%
Capex IntensityCapex / Revenue
6.8%
175.0%
Cash ConversionOCF / Net Profit
1.97×
TTM Free Cash FlowTrailing 4 quarters
$87.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
POWI
POWI
SEI
SEI
Q1 26
Q4 25
$26.2M
$95.9M
Q3 25
$29.9M
$63.3M
Q2 25
$29.1M
$24.2M
Q1 25
$26.4M
$25.7M
Q4 24
$14.7M
$13.1M
Q3 24
$32.9M
$10.5M
Q2 24
$17.6M
$18.9M
Free Cash Flow
POWI
POWI
SEI
SEI
Q1 26
Q4 25
$19.2M
$-158.6M
Q3 25
$24.2M
$462.0K
Q2 25
$23.1M
$-160.9M
Q1 25
$20.7M
$-118.6M
Q4 24
$11.7M
$-113.6M
Q3 24
$27.2M
$-47.2M
Q2 24
$13.5M
$18.2M
FCF Margin
POWI
POWI
SEI
SEI
Q1 26
Q4 25
18.6%
-88.2%
Q3 25
20.3%
0.3%
Q2 25
20.0%
-107.8%
Q1 25
19.6%
-93.9%
Q4 24
11.1%
-117.9%
Q3 24
23.5%
-63.0%
Q2 24
12.7%
24.7%
Capex Intensity
POWI
POWI
SEI
SEI
Q1 26
175.0%
Q4 25
6.8%
141.6%
Q3 25
4.8%
37.6%
Q2 25
5.1%
124.0%
Q1 25
5.4%
114.2%
Q4 24
2.9%
131.5%
Q3 24
4.9%
77.0%
Q2 24
3.9%
0.9%
Cash Conversion
POWI
POWI
SEI
SEI
Q1 26
Q4 25
1.97×
Q3 25
4.35×
Q2 25
21.24×
2.02×
Q1 25
3.00×
4.83×
Q4 24
1.61×
2.10×
Q3 24
2.30×
Q2 24
3.64×
3.04×

Financial Flow Comparison

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

Revenue Breakdown by Segment

POWI
POWI

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

SEI
SEI

Leasing revenue$105.4M54%
Service revenue$90.9M46%

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