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Semiconductor materials

The 7 companies in this industry listed on the NYSE and Nasdaq are worth $77 bn combined; the largest are Qnity Electronics, Inc. (Q), Entegris (ENTG) and MKS Inc. (MKSI). 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

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7 companies value 77 bn revenue 18 bn margin 10.1% free cash flow 2.1 bn avg. score 4.2
Q holds 32.5% of the group's value, 1.1x the runner-up · ENTG 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 Q Qnity Electronics, Inc.
United States · score 5.6
33% 25 bn 5.2 bn 14.0% 0.8 bn 3.3% 0.2% Materials and solutions for the semiconductor and electronics industry · Delaware — revenue of $5.2bn
2 ENTG Entegris
United States · score 4.8
29% 22 bn 3.3 bn 9.2% 0.6 bn 2.6% 0.3% Critical materials and supplies for semiconductor manufacturing · Leader in ultrapure materials and filtration for chip fabs
3 MKSI MKS Inc.
United States · score 5.2
19% 15 bn 4.3 bn 10.1% 0.5 bn 3.1% 0.4% Subsystems for semiconductors, electronics and optics · Vacuum, laser and chemistry subsystems for chip fabs
4 SOLS Solstice Advanced Materials
United States · score 4.3
13% 9.6 bn 4.1 bn 5.1% 0.2 bn 2.0% 15.9% Advanced materials: refrigerants, specialties and electronics · Spun off from Honeywell in 2025; specialty materials and refrigerant gases
5 AXTI AXT INC
United States · score 2.2
5% 3.7 bn 0.1 bn 3.2% -0.0 bn -0.5% — Compound and single-element semiconductor substrates · California — revenue of $126m
6 PLAB PHOTRONICS INC
United States · score 6.6
2% 1.7 bn 0.9 bn 19.0% 0.1 bn 6.6% — One of the world's largest makers of photomasks for semiconductors · Connecticut — revenue of $867m
7 SMTK SmartKem, Inc.
United States · score 0.5
— — 0.0 bn -43x -0.0 bn — — Organic semiconductors for flexible displays · Delaware

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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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