Filing Flows › MKS (MKSI) › Q4 2025
MKS (MKSI) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Feb 24, 2026
MKS (MKSI) reported revenue of $1.0B for the fourth quarter 2025 (Q4 2025), +11% from a year earlier and +5% from the quarter before. Operating margin was 13.8%, net earnings $107M (10.4% of revenue).
MKS, Q4 2025: revenue $1.0B (+11% year over year), operating margin 13.8%, net earnings $107M, operating cash flow $142M. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $1.0B | +5% | +11% |
| Gross profit | $479M | +4% | +9% |
| Operating profit | $143M | +4% | +5% |
| Net earnings | $107M | +45% | +18% |
| Operating cash flow | $142M | -28% | -19% |
| Free cash flow | $91.0M | — | -27% |
What changed
Revenue was $1.0B in Q4 2025, up 11% year over year and up 5% from the previous quarter. Semiconductor was the largest line at 42% of revenue.
Gross margin was 46.4%, down 0.8 points from a year earlier. Operating profit was $0.14B, a 13.8% margin (down 0.7 points year over year). Of the extra revenue versus a year earlier, 7% reached operating profit, below the 15% margin then. Operating expenses grew 10% against revenue growth of 11%. The fastest-growing cost line was Research & development (+18%). Net earnings were $0.11B, up 18% year over year. The effective tax rate was -20.2%.
Operating cash flow was $0.14B (down 19% year over year), 133% of net earnings. Non-cash charges added back $0.09B of depreciation and amortization and $0.01B of share-based compensation. Working capital and other items used $0.06B. After purchases of property, plant and equipment ($0.05B), free cash flow as the company reports it was $0.09B.
Questions
What was MKS' revenue in the fourth quarter 2025?
MKS (MKSI) reported revenue of $1.0B for the fourth quarter 2025 (Q4 2025), +11% from a year earlier and +5% from the quarter before.
Was MKS profitable in the fourth quarter 2025?
Operating profit was $143M (13.8% of revenue) and net earnings $107M.
Source: MKS 10-K on SEC EDGAR.