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

Western Union CO is the larger business by last-quarter revenue ($982.7M vs $751.2M, roughly 1.3× Monolithic Power Systems). Monolithic Power Systems runs the higher net margin — 22.9% vs 6.6%, a 16.3% gap on every dollar of revenue. On growth, Monolithic Power Systems posted the faster year-over-year revenue change (20.8% vs 0.0%). Over the past eight quarters, Monolithic Power Systems's revenue compounded faster (28.1% CAGR vs -1.9%).

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

The Western Union Company is an American multinational financial services corporation headquartered in Denver, Colorado.

MPWR vs WU — Head-to-Head

Bigger by revenue
WU
WU
1.3× larger
WU
$982.7M
$751.2M
MPWR
Growing faster (revenue YoY)
MPWR
MPWR
+20.8% gap
MPWR
20.8%
0.0%
WU
Higher net margin
MPWR
MPWR
16.3% more per $
MPWR
22.9%
6.6%
WU
Faster 2-yr revenue CAGR
MPWR
MPWR
Annualised
MPWR
28.1%
-1.9%
WU

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
MPWR
MPWR
WU
WU
Revenue
$751.2M
$982.7M
Net Profit
$171.7M
$64.7M
Gross Margin
55.2%
Operating Margin
26.6%
12.5%
Net Margin
22.9%
6.6%
Revenue YoY
20.8%
0.0%
Net Profit YoY
-86.3%
-47.6%
EPS (diluted)
$3.50
$0.41

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
WU
WU
Q1 26
$982.7M
Q4 25
$751.2M
$972.0M
Q3 25
$737.2M
$985.3M
Q2 25
$664.6M
$983.6M
Q1 25
$637.6M
$938.7M
Q4 24
$621.7M
$1.0B
Q3 24
$620.1M
$993.4M
Q2 24
$507.4M
$1.0B
Net Profit
MPWR
MPWR
WU
WU
Q1 26
$64.7M
Q4 25
$171.7M
$114.4M
Q3 25
$179.8M
$139.6M
Q2 25
$135.0M
$122.1M
Q1 25
$135.1M
$123.5M
Q4 24
$1.3B
$385.7M
Q3 24
$144.4M
$264.8M
Q2 24
$100.4M
$141.0M
Gross Margin
MPWR
MPWR
WU
WU
Q1 26
Q4 25
55.2%
33.6%
Q3 25
55.1%
34.7%
Q2 25
55.1%
34.6%
Q1 25
55.4%
34.0%
Q4 24
55.4%
35.0%
Q3 24
55.4%
34.2%
Q2 24
55.3%
35.0%
Operating Margin
MPWR
MPWR
WU
WU
Q1 26
12.5%
Q4 25
26.6%
19.1%
Q3 25
26.5%
20.5%
Q2 25
24.8%
19.6%
Q1 25
26.5%
18.9%
Q4 24
26.3%
17.5%
Q3 24
26.5%
16.6%
Q2 24
23.0%
18.7%
Net Margin
MPWR
MPWR
WU
WU
Q1 26
6.6%
Q4 25
22.9%
11.8%
Q3 25
24.4%
14.2%
Q2 25
20.3%
12.4%
Q1 25
21.2%
13.2%
Q4 24
201.8%
37.9%
Q3 24
23.3%
26.7%
Q2 24
19.8%
13.8%
EPS (diluted)
MPWR
MPWR
WU
WU
Q1 26
$0.41
Q4 25
$3.50
$0.36
Q3 25
$3.74
$0.43
Q2 25
$2.81
$0.37
Q1 25
$2.81
$0.36
Q4 24
$25.71
$1.14
Q3 24
$2.95
$0.78
Q2 24
$2.05
$0.41

Balance Sheet & Financial Strength

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

Metric
MPWR
MPWR
WU
WU
Cash + ST InvestmentsLiquidity on hand
$1.3B
$909.2M
Total DebtLower is stronger
Stockholders' EquityBook value
$3.5B
$910.5M
Total Assets
$4.2B
$8.1B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPWR
MPWR
WU
WU
Q1 26
$909.2M
Q4 25
$1.3B
$1.2B
Q3 25
$1.3B
$947.8M
Q2 25
$1.1B
$1.0B
Q1 25
$1.0B
$1.3B
Q4 24
$862.9M
$1.5B
Q3 24
$1.5B
$1.1B
Q2 24
$1.3B
$1.0B
Total Debt
MPWR
MPWR
WU
WU
Q1 26
Q4 25
$2.9B
Q3 25
$2.5B
Q2 25
$2.5B
Q1 25
$2.5B
Q4 24
$3.0B
Q3 24
$2.1B
Q2 24
$2.1B
Stockholders' Equity
MPWR
MPWR
WU
WU
Q1 26
$910.5M
Q4 25
$3.5B
$957.8M
Q3 25
$3.4B
$925.4M
Q2 25
$3.2B
$883.6M
Q1 25
$3.1B
$939.4M
Q4 24
$3.0B
$968.9M
Q3 24
$2.4B
$652.7M
Q2 24
$2.2B
$440.8M
Total Assets
MPWR
MPWR
WU
WU
Q1 26
$8.1B
Q4 25
$4.2B
$8.3B
Q3 25
$4.1B
$7.8B
Q2 25
$3.9B
$8.0B
Q1 25
$3.7B
$8.3B
Q4 24
$3.5B
$8.4B
Q3 24
$2.9B
$7.7B
Q2 24
$2.6B
$8.0B
Debt / Equity
MPWR
MPWR
WU
WU
Q1 26
Q4 25
3.01×
Q3 25
2.70×
Q2 25
2.83×
Q1 25
2.61×
Q4 24
3.04×
Q3 24
3.29×
Q2 24
4.88×

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
WU
WU
Operating Cash FlowLast quarter
$104.9M
$109.0M
Free Cash FlowOCF − Capex
$63.9M
FCF MarginFCF / Revenue
8.5%
Capex IntensityCapex / Revenue
5.5%
4.8%
Cash ConversionOCF / Net Profit
0.61×
1.68×
TTM Free Cash FlowTrailing 4 quarters
$666.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPWR
MPWR
WU
WU
Q1 26
$109.0M
Q4 25
$104.9M
$135.4M
Q3 25
$239.3M
$260.4M
Q2 25
$237.6M
$-300.0K
Q1 25
$256.4M
$148.2M
Q4 24
$167.7M
$134.0M
Q3 24
$231.7M
$212.1M
Q2 24
$141.0M
$-33.8M
Free Cash Flow
MPWR
MPWR
WU
WU
Q1 26
Q4 25
$63.9M
$115.5M
Q3 25
$196.8M
$252.7M
Q2 25
$189.5M
$-7.8M
Q1 25
$216.0M
$144.8M
Q4 24
$102.9M
$119.7M
Q3 24
$197.9M
$205.1M
Q2 24
$109.5M
$-38.9M
FCF Margin
MPWR
MPWR
WU
WU
Q1 26
Q4 25
8.5%
11.9%
Q3 25
26.7%
25.6%
Q2 25
28.5%
-0.8%
Q1 25
33.9%
15.4%
Q4 24
16.5%
11.8%
Q3 24
31.9%
20.6%
Q2 24
21.6%
-3.8%
Capex Intensity
MPWR
MPWR
WU
WU
Q1 26
4.8%
Q4 25
5.5%
2.0%
Q3 25
5.8%
0.8%
Q2 25
7.2%
0.8%
Q1 25
6.3%
0.4%
Q4 24
10.4%
1.4%
Q3 24
5.5%
0.7%
Q2 24
6.2%
0.5%
Cash Conversion
MPWR
MPWR
WU
WU
Q1 26
1.68×
Q4 25
0.61×
1.18×
Q3 25
1.33×
1.87×
Q2 25
1.76×
-0.00×
Q1 25
1.90×
1.20×
Q4 24
0.13×
0.35×
Q3 24
1.60×
0.80×
Q2 24
1.40×
-0.24×

Financial Flow Comparison

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

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