vs

Side-by-side financial comparison of MKS INC (MKSI) and Monolithic Power Systems (MPWR). Click either name above to swap in a different company.

MKS INC is the larger business by last-quarter revenue ($1.0B vs $804.2M, roughly 1.3× Monolithic Power Systems). Monolithic Power Systems runs the higher net margin — 24.0% vs 10.3%, a 13.7% gap on every dollar of revenue. On growth, Monolithic Power Systems posted the faster year-over-year revenue change (26.1% vs 10.6%). Over the past eight quarters, Monolithic Power Systems's revenue compounded faster (25.9% CAGR vs 9.1%).

MKS, Inc is a subsidiary of PTC, Inc. It was previously a multinational independent software vendor that was acquired by Parametric Technology Corporation on May 31, 2011. MKS operated in the Application Lifecycle Management (ALM) and Systems Administration market segments.

Monolithic Power Systems, Inc. is an American, publicly traded company headquartered in Kirkland, Washington. It operates in more than 15 locations worldwide.

MKSI vs MPWR — Head-to-Head

Bigger by revenue
MKSI
MKSI
1.3× larger
MKSI
$1.0B
$804.2M
MPWR
Growing faster (revenue YoY)
MPWR
MPWR
+15.5% gap
MPWR
26.1%
10.6%
MKSI
Higher net margin
MPWR
MPWR
13.7% more per $
MPWR
24.0%
10.3%
MKSI
Faster 2-yr revenue CAGR
MPWR
MPWR
Annualised
MPWR
25.9%
9.1%
MKSI

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
MKSI
MKSI
MPWR
MPWR
Revenue
$1.0B
$804.2M
Net Profit
$107.0M
$193.2M
Gross Margin
46.3%
55.3%
Operating Margin
13.9%
30.0%
Net Margin
10.3%
24.0%
Revenue YoY
10.6%
26.1%
Net Profit YoY
18.9%
43.1%
EPS (diluted)
$1.58
$3.92

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
MKSI
MKSI
MPWR
MPWR
Q1 26
$804.2M
Q4 25
$1.0B
$751.2M
Q3 25
$988.0M
$737.2M
Q2 25
$973.0M
$664.6M
Q1 25
$936.0M
$637.6M
Q4 24
$935.0M
$621.7M
Q3 24
$896.0M
$620.1M
Q2 24
$887.0M
$507.4M
Net Profit
MKSI
MKSI
MPWR
MPWR
Q1 26
$193.2M
Q4 25
$107.0M
$171.7M
Q3 25
$74.0M
$179.8M
Q2 25
$62.0M
$135.0M
Q1 25
$52.0M
$135.1M
Q4 24
$90.0M
$1.3B
Q3 24
$62.0M
$144.4M
Q2 24
$23.0M
$100.4M
Gross Margin
MKSI
MKSI
MPWR
MPWR
Q1 26
55.3%
Q4 25
46.3%
55.2%
Q3 25
46.7%
55.1%
Q2 25
46.6%
55.1%
Q1 25
47.4%
55.4%
Q4 24
47.3%
55.4%
Q3 24
48.2%
55.4%
Q2 24
47.2%
55.3%
Operating Margin
MKSI
MKSI
MPWR
MPWR
Q1 26
30.0%
Q4 25
13.9%
26.6%
Q3 25
14.0%
26.5%
Q2 25
13.9%
24.8%
Q1 25
11.9%
26.5%
Q4 24
14.7%
26.3%
Q3 24
14.3%
26.5%
Q2 24
14.3%
23.0%
Net Margin
MKSI
MKSI
MPWR
MPWR
Q1 26
24.0%
Q4 25
10.3%
22.9%
Q3 25
7.5%
24.4%
Q2 25
6.4%
20.3%
Q1 25
5.6%
21.2%
Q4 24
9.6%
201.8%
Q3 24
6.9%
23.3%
Q2 24
2.6%
19.8%
EPS (diluted)
MKSI
MKSI
MPWR
MPWR
Q1 26
$3.92
Q4 25
$1.58
$3.50
Q3 25
$1.10
$3.74
Q2 25
$0.92
$2.81
Q1 25
$0.77
$2.81
Q4 24
$1.34
$25.71
Q3 24
$0.92
$2.95
Q2 24
$0.33
$2.05

Balance Sheet & Financial Strength

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

Metric
MKSI
MKSI
MPWR
MPWR
Cash + ST InvestmentsLiquidity on hand
$418.0M
$1.4B
Total DebtLower is stronger
$4.2B
Stockholders' EquityBook value
$2.7B
$3.7B
Total Assets
$8.8B
$4.4B
Debt / EquityLower = less leverage
1.53×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MKSI
MKSI
MPWR
MPWR
Q1 26
$1.4B
Q4 25
$418.0M
$1.3B
Q3 25
$413.0M
$1.3B
Q2 25
$498.0M
$1.1B
Q1 25
$407.0M
$1.0B
Q4 24
$420.0M
$862.9M
Q3 24
$439.0M
$1.5B
Q2 24
$506.0M
$1.3B
Total Debt
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
$4.2B
Q3 25
$4.3B
Q2 25
$4.4B
Q1 25
$4.4B
Q4 24
$4.5B
Q3 24
$4.8B
Q2 24
$4.8B
Stockholders' Equity
MKSI
MKSI
MPWR
MPWR
Q1 26
$3.7B
Q4 25
$2.7B
$3.5B
Q3 25
$2.6B
$3.4B
Q2 25
$2.6B
$3.2B
Q1 25
$2.4B
$3.1B
Q4 24
$2.3B
$3.0B
Q3 24
$2.4B
$2.4B
Q2 24
$2.2B
$2.2B
Total Assets
MKSI
MKSI
MPWR
MPWR
Q1 26
$4.4B
Q4 25
$8.8B
$4.2B
Q3 25
$8.8B
$4.1B
Q2 25
$8.8B
$3.9B
Q1 25
$8.6B
$3.7B
Q4 24
$8.6B
$3.5B
Q3 24
$9.0B
$2.9B
Q2 24
$8.9B
$2.6B
Debt / Equity
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
1.53×
Q3 25
1.64×
Q2 25
1.71×
Q1 25
1.87×
Q4 24
1.93×
Q3 24
1.98×
Q2 24
2.16×

Cash Flow & Capital Efficiency

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

Metric
MKSI
MKSI
MPWR
MPWR
Operating Cash FlowLast quarter
$142.0M
Free Cash FlowOCF − Capex
$92.0M
FCF MarginFCF / Revenue
8.9%
Capex IntensityCapex / Revenue
4.8%
Cash ConversionOCF / Net Profit
1.33×
TTM Free Cash FlowTrailing 4 quarters
$497.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
$142.0M
$104.9M
Q3 25
$197.0M
$239.3M
Q2 25
$165.0M
$237.6M
Q1 25
$141.0M
$256.4M
Q4 24
$176.0M
$167.7M
Q3 24
$163.0M
$231.7M
Q2 24
$122.0M
$141.0M
Free Cash Flow
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
$92.0M
$63.9M
Q3 25
$146.0M
$196.8M
Q2 25
$136.0M
$189.5M
Q1 25
$123.0M
$216.0M
Q4 24
$125.0M
$102.9M
Q3 24
$141.0M
$197.9M
Q2 24
$95.0M
$109.5M
FCF Margin
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
8.9%
8.5%
Q3 25
14.8%
26.7%
Q2 25
14.0%
28.5%
Q1 25
13.1%
33.9%
Q4 24
13.4%
16.5%
Q3 24
15.7%
31.9%
Q2 24
10.7%
21.6%
Capex Intensity
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
4.8%
5.5%
Q3 25
5.2%
5.8%
Q2 25
3.0%
7.2%
Q1 25
1.9%
6.3%
Q4 24
5.5%
10.4%
Q3 24
2.5%
5.5%
Q2 24
3.0%
6.2%
Cash Conversion
MKSI
MKSI
MPWR
MPWR
Q1 26
Q4 25
1.33×
0.61×
Q3 25
2.66×
1.33×
Q2 25
2.66×
1.76×
Q1 25
2.71×
1.90×
Q4 24
1.96×
0.13×
Q3 24
2.63×
1.60×
Q2 24
5.30×
1.40×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MKSI
MKSI

Electronics And Packaging$303.0M29%
Specialty Industrial$295.0M29%
Photonics Solutions Division$274.0M26%
Services$125.0M12%
Other$37.0M4%

MPWR
MPWR

Segment breakdown not available.

Related Comparisons