vs

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

Pentair is the larger business by last-quarter revenue ($1.0B vs $751.2M, roughly 1.4× Monolithic Power Systems). Monolithic Power Systems runs the higher net margin — 22.9% vs 16.6%, a 6.2% gap on every dollar of revenue. On growth, Monolithic Power Systems posted the faster year-over-year revenue change (20.8% vs 2.6%). Monolithic Power Systems produced more free cash flow last quarter ($63.9M vs $-85.7M). Over the past eight quarters, Monolithic Power Systems's revenue compounded faster (28.1% CAGR vs -2.9%).

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

Pentair plc (PNR) is an American water treatment company incorporated in Ireland with tax residency in UK, with its main U.S. office in Golden Valley, Minnesota. Pentair was founded in the US, with 65% of company's revenue coming from the US and Canada as of 2017. PNR was reorganized in 2014, shifting the corporate domicile from Switzerland to Ireland.

MPWR vs PNR — Head-to-Head

Bigger by revenue
PNR
PNR
1.4× larger
PNR
$1.0B
$751.2M
MPWR
Growing faster (revenue YoY)
MPWR
MPWR
+18.2% gap
MPWR
20.8%
2.6%
PNR
Higher net margin
MPWR
MPWR
6.2% more per $
MPWR
22.9%
16.6%
PNR
More free cash flow
MPWR
MPWR
$149.6M more FCF
MPWR
$63.9M
$-85.7M
PNR
Faster 2-yr revenue CAGR
MPWR
MPWR
Annualised
MPWR
28.1%
-2.9%
PNR

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
MPWR
MPWR
PNR
PNR
Revenue
$751.2M
$1.0B
Net Profit
$171.7M
$172.4M
Gross Margin
55.2%
41.8%
Operating Margin
26.6%
20.3%
Net Margin
22.9%
16.6%
Revenue YoY
20.8%
2.6%
Net Profit YoY
-86.3%
11.3%
EPS (diluted)
$3.50

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
MPWR
MPWR
PNR
PNR
Q1 26
$1.0B
Q4 25
$751.2M
$1.0B
Q3 25
$737.2M
$1.0B
Q2 25
$664.6M
$1.1B
Q1 25
$637.6M
$1.0B
Q4 24
$621.7M
$972.9M
Q3 24
$620.1M
$993.4M
Q2 24
$507.4M
$1.1B
Net Profit
MPWR
MPWR
PNR
PNR
Q1 26
$172.4M
Q4 25
$171.7M
$166.1M
Q3 25
$179.8M
$184.3M
Q2 25
$135.0M
$148.5M
Q1 25
$135.1M
$154.9M
Q4 24
$1.3B
$166.4M
Q3 24
$144.4M
$139.6M
Q2 24
$100.4M
$186.1M
Gross Margin
MPWR
MPWR
PNR
PNR
Q1 26
41.8%
Q4 25
55.2%
40.4%
Q3 25
55.1%
41.0%
Q2 25
55.1%
40.7%
Q1 25
55.4%
39.9%
Q4 24
55.4%
38.8%
Q3 24
55.4%
39.6%
Q2 24
55.3%
39.8%
Operating Margin
MPWR
MPWR
PNR
PNR
Q1 26
20.3%
Q4 25
26.6%
20.1%
Q3 25
26.5%
22.7%
Q2 25
24.8%
19.4%
Q1 25
26.5%
20.1%
Q4 24
26.3%
20.1%
Q3 24
26.5%
18.1%
Q2 24
23.0%
22.6%
Net Margin
MPWR
MPWR
PNR
PNR
Q1 26
16.6%
Q4 25
22.9%
16.3%
Q3 25
24.4%
18.0%
Q2 25
20.3%
13.2%
Q1 25
21.2%
15.3%
Q4 24
201.8%
17.1%
Q3 24
23.3%
14.1%
Q2 24
19.8%
16.9%
EPS (diluted)
MPWR
MPWR
PNR
PNR
Q1 26
Q4 25
$3.50
$1.01
Q3 25
$3.74
$1.12
Q2 25
$2.81
$0.90
Q1 25
$2.81
$0.93
Q4 24
$25.71
$0.99
Q3 24
$2.95
$0.84
Q2 24
$2.05
$1.11

Balance Sheet & Financial Strength

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

Metric
MPWR
MPWR
PNR
PNR
Cash + ST InvestmentsLiquidity on hand
$1.3B
$67.7M
Total DebtLower is stronger
$1.9B
Stockholders' EquityBook value
$3.5B
$3.8B
Total Assets
$4.2B
$7.1B
Debt / EquityLower = less leverage
0.51×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPWR
MPWR
PNR
PNR
Q1 26
$67.7M
Q4 25
$1.3B
Q3 25
$1.3B
$128.4M
Q2 25
$1.1B
$143.0M
Q1 25
$1.0B
$140.6M
Q4 24
$862.9M
$118.7M
Q3 24
$1.5B
$218.1M
Q2 24
$1.3B
$214.3M
Total Debt
MPWR
MPWR
PNR
PNR
Q1 26
$1.9B
Q4 25
$1.6B
Q3 25
$1.6B
Q2 25
$1.4B
Q1 25
$1.8B
Q4 24
$1.6B
Q3 24
Q2 24
$1.8B
Stockholders' Equity
MPWR
MPWR
PNR
PNR
Q1 26
$3.8B
Q4 25
$3.5B
$3.9B
Q3 25
$3.4B
$3.8B
Q2 25
$3.2B
$3.7B
Q1 25
$3.1B
$3.6B
Q4 24
$3.0B
$3.6B
Q3 24
$2.4B
$3.5B
Q2 24
$2.2B
$3.4B
Total Assets
MPWR
MPWR
PNR
PNR
Q1 26
$7.1B
Q4 25
$4.2B
$6.9B
Q3 25
$4.1B
$6.8B
Q2 25
$3.9B
$6.5B
Q1 25
$3.7B
$6.7B
Q4 24
$3.5B
$6.4B
Q3 24
$2.9B
$6.5B
Q2 24
$2.6B
$6.5B
Debt / Equity
MPWR
MPWR
PNR
PNR
Q1 26
0.51×
Q4 25
0.42×
Q3 25
0.42×
Q2 25
0.38×
Q1 25
0.51×
Q4 24
0.46×
Q3 24
Q2 24
0.51×

Cash Flow & Capital Efficiency

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

Metric
MPWR
MPWR
PNR
PNR
Operating Cash FlowLast quarter
$104.9M
Free Cash FlowOCF − Capex
$63.9M
$-85.7M
FCF MarginFCF / Revenue
8.5%
-8.3%
Capex IntensityCapex / Revenue
5.5%
1.8%
Cash ConversionOCF / Net Profit
0.61×
TTM Free Cash FlowTrailing 4 quarters
$666.2M
$716.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPWR
MPWR
PNR
PNR
Q1 26
Q4 25
$104.9M
$50.8M
Q3 25
$239.3M
$196.3M
Q2 25
$237.6M
$606.6M
Q1 25
$256.4M
$-38.9M
Q4 24
$167.7M
$86.5M
Q3 24
$231.7M
$248.6M
Q2 24
$141.0M
$539.2M
Free Cash Flow
MPWR
MPWR
PNR
PNR
Q1 26
$-85.7M
Q4 25
$63.9M
$27.1M
Q3 25
$196.8M
$178.9M
Q2 25
$189.5M
$595.7M
Q1 25
$216.0M
$-55.7M
Q4 24
$102.9M
$63.8M
Q3 24
$197.9M
$233.2M
Q2 24
$109.5M
$522.2M
FCF Margin
MPWR
MPWR
PNR
PNR
Q1 26
-8.3%
Q4 25
8.5%
2.7%
Q3 25
26.7%
17.5%
Q2 25
28.5%
53.0%
Q1 25
33.9%
-5.5%
Q4 24
16.5%
6.6%
Q3 24
31.9%
23.5%
Q2 24
21.6%
47.5%
Capex Intensity
MPWR
MPWR
PNR
PNR
Q1 26
1.8%
Q4 25
5.5%
2.3%
Q3 25
5.8%
1.7%
Q2 25
7.2%
1.0%
Q1 25
6.3%
1.7%
Q4 24
10.4%
2.3%
Q3 24
5.5%
1.6%
Q2 24
6.2%
1.5%
Cash Conversion
MPWR
MPWR
PNR
PNR
Q1 26
Q4 25
0.61×
0.31×
Q3 25
1.33×
1.07×
Q2 25
1.76×
4.08×
Q1 25
1.90×
-0.25×
Q4 24
0.13×
0.52×
Q3 24
1.60×
1.78×
Q2 24
1.40×
2.90×

Financial Flow Comparison

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

Revenue Breakdown by Segment

MPWR
MPWR

Segment breakdown not available.

PNR
PNR

Water Solutions$391.0M38%
Pool$387.1M37%
Flow$258.1M25%

Related Comparisons