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Power semiconductors

The 8 companies in this industry listed on the NYSE and Nasdaq are worth $97 bn combined; the largest are Monolithic Power Systems (MPWR), onsemi (ON) and POWER INTEGRATIONS INC (POWI). For each one: what it does, revenue, margin, free cash flow over the last five years and a score from 0 to 10.

Data as of October 2026

Clear leader
8 companies value 97 bn revenue 12 bn margin 11.0% free cash flow 1.6 bn avg. score 2.4
MPWR holds 63.5% of the group's value, 2.2x the runner-up · ON leads the industry without being the largest
Rank Ticker Company Share Value Revenue Margin FCF 5 years FCF/px Yield What it does · why it is here
1 MPWR Monolithic Power Systems
United States · score 5.7
64% 62 bn 3.3 bn 24.5% 0.6 bn 1.0% 0.5% Power management integrated circuits · Power management for AI servers; exceptional margins
2 ON onsemi
United States · score 6.1
29% 29 bn 6.2 bn 10.2% 1.5 bn 5.3% — Power semiconductors and image sensors · Leader in silicon carbide for electric vehicles
3 POWI POWER INTEGRATIONS INC
United States · score 6.0
3% 2.5 bn 0.5 bn 5.6% 0.1 bn 3.1% 1.9% Integrated circuits for high-voltage power conversion · California — revenue of $446m
4 NVTS Navitas Semiconductor Corp
United States · score 0.0
2% 2.3 bn 0.0 bn -320.1% -0.1 bn -3.0% — Gallium nitride and silicon carbide power semiconductors · California — revenue of $37m
5 WOLF WOLFSPEED, INC.
United States · score 0.7
1% 1.3 bn 0.7 bn 0.7% -0.4 bn -29.7% — Silicon carbide semiconductors for power applications · North Carolina — revenue of $665m
6 AOSL ALPHA & OMEGA SEMICONDUCTOR Ltd
United States · score 0.3
1% 0.7 bn 0.7 bn -6.2% -0.1 bn -10.0% — Power semiconductors · California — revenue of $679m
7 MX MAGNACHIP SEMICONDUCTOR Corp
South Korea · score 0.0
0% 0.1 bn 0.2 bn -17.3% -0.1 bn -57.9% — Analog and power semiconductors, from South Korea · South Korea — revenue of $177m
8 IPWR Ideal Power Inc.
United States · score 0.0
0% 0.0 bn 0.0 bn -396x -0.0 bn -19.5% — B-TRAN bidirectional power semiconductors · Texas

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What this is. A catalogue, not a guide. Every industry with stocks listed on the NYSE or NASDAQ, the companies contending for its leadership, what each one does according to its own annual report, and the balance sheet it filed with the SEC.

The score runs from 0 to 10 and compares each company with every other one in the almanac on cash generation, profitability, debt, dividends and consistency over the last five years. The higher it is, the better the company fares in that comparison. Curious how much each part weighs? Ask at the bottom of the page.

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