ASX vs. MPWR: ASE vs. Monolithic Power Systems Stock Comparison

November 11, 2026

How do ASE (ASX) and Monolithic Power Systems (MPWR) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

ASE (ASX) and Monolithic Power Systems (MPWR) are both classified in the Semiconductors sub-industry within the broader Semiconductors & Semiconductor Equipment industry, placing them in the closest GICS peer bucket.

Monolithic Power Systems (MPWR) trades as ordinary local shares, while ASE (ASX) trades as an ADR — compare with FX exposure, depositary-program fees, and dividend-withholding-tax differences in mind.

Company profile comparison for ASE (ASX) and Monolithic Power Systems (MPWR)
Profile Item	ASX	MPWR
Name	ASE Technology Holding Co., Ltd. ADR	Monolithic Power Systems Inc.
Country/Region	Taiwan	United States
GICS Sector	Information Technology	Information Technology
GICS Industry Group	Semiconductors & Semiconductor Equipment	Semiconductors & Semiconductor Equipment
GICS Industry	Semiconductors & Semiconductor Equipment	Semiconductors & Semiconductor Equipment
GICS Sub-Industry	Semiconductors	Semiconductors
Market Capitalization	69.83 billion USD	58.06 billion USD
Currency	USD	USD
Exchange	NYSE	Nasdaq
Listing Date	October 2, 2000	November 19, 2004
Security Type	ADR	Common Stock

Price Performance

Cumulative Growth

ASX

MPWR

GSPC

ASE (ASX) vs. Monolithic Power Systems (MPWR), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for ASE (ASX) and Monolithic Power Systems (MPWR). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for ASE (ASX) and Monolithic Power Systems (MPWR). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
Total Return (1Y)	127.56%	42.29%
Total Return (3Y, Annualized)	67.56%	42.13%
Total Return (5Y, Annualized)	41.55%	20.48%

Risk Profile

Drawdown History

ASX

MPWR

GSPC

ASE (ASX) vs. Monolithic Power Systems (MPWR), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for ASE (ASX) and Monolithic Power Systems (MPWR). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
Volatility (1Y, Annualized)	62.95%	57.22%
Beta (5Y)	1.83	1.67
Max Drawdown (5Y)	-40.64%	-51.65%
Avg. Volume (3M)	7.76M	776.23K

Risk-Adjusted Performance

Risk-Return Positioning

ASX and MPWR are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
Sharpe Ratio (1Y)	1.96	0.66
Sortino Ratio (1Y)	2.77	0.98

Profitability

ROE (TTM)

Monolithic Power Systems (MPWR) at 24.47% sits in the top ROE quartile, while ASE (ASX) at 19.90% is closer to the peer norm — stronger capital efficiency for MPWR.

ASX

Semiconductors & Semiconductor Equipment industry group

19.90%

Max: 52.82%
Q3: 22.26%
ASX: 19.90%
Median: 10.58%
Q1: 1.29%
Min: -16.89%

MPWR

Semiconductors & Semiconductor Equipment industry group

24.47%

Max: 52.82%
MPWR: 24.47%
Q3: 22.26%
Median: 10.58%
Q1: 1.29%
Min: -16.89%

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their ROE against the Semiconductors & Semiconductor Equipment industry group benchmark.

Net Margin (TTM)

Both ASE (ASX) at 9.78% and Monolithic Power Systems (MPWR) at 23.89% keep about the typical share of revenue as profit for their industries — neither bottom line stands out from peers.

ASX

Semiconductors & Semiconductor Equipment industry group

9.78%

Max: 63.80%
Q3: 28.36%
Median: 11.44%
ASX: 9.78%
Q1: 0.90%
Min: -37.77%

MPWR

Semiconductors & Semiconductor Equipment industry group

23.89%

Max: 63.80%
Q3: 28.36%
MPWR: 23.89%
Median: 11.44%
Q1: 0.90%
Min: -37.77%

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their net margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Operating Margin (TTM)

Both ASE (ASX) at 13.57% and Monolithic Power Systems (MPWR) at 29.75% run core operations about as efficiently as their industries’ norm — neither stands out on operating profitability.

ASX

Semiconductors & Semiconductor Equipment industry group

13.57%

Max: 58.66%
Q3: 30.23%
Median: 15.91%
ASX: 13.57%
Q1: 7.54%
Min: -25.74%

MPWR

Semiconductors & Semiconductor Equipment industry group

29.75%

Max: 58.66%
Q3: 30.23%
MPWR: 29.75%
Median: 15.91%
Q1: 7.54%
Min: -25.74%

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their operating margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
ROE (TTM)	19.90%	24.47%
ROA (TTM)	5.36%	15.52%
Net Margin (TTM)	9.78%	23.89%
Operating Margin (TTM)	13.57%	29.75%
Gross Margin (TTM)	20.80%	55.26%

Growth

Revenue Growth

Monolithic Power Systems (MPWR) at 26.43% sits in the top revenue growth quartile, while ASE (ASX) at 8.39% is closer to the peer norm — faster top-line expansion for MPWR.

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their Revenue Growth across different time periods.

EPS Growth

ASE (ASX) at 22.96% is around its peer norm for EPS growth, while Monolithic Power Systems (MPWR) at -64.85% drops into the bottom quartile, signaling weaker earnings momentum.

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
Revenue Growth (YoY)	8.39%	26.43%
Revenue Growth (3Y CAGR)	-1.28%	15.86%
EPS Growth (YoY)	22.96%	-64.85%
EPS Growth (3Y CAGR)	-13.66%	12.43%

Financial Strength

Current Ratio (MRQ)

Monolithic Power Systems (MPWR) at 3.70 keeps current ratio within its industry’s typical mid-range, while ASE (ASX) at 1.16 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for ASX.

ASX

Semiconductors & Semiconductor Equipment industry group

1.16

Max: 10.33
Q3: 5.62
Median: 3.33
Q1: 2.35
ASX: 1.16
Min: 1.03

MPWR

Semiconductors & Semiconductor Equipment industry group

3.70

Max: 10.33
Q3: 5.62
MPWR: 3.70
Median: 3.33
Q1: 2.35
Min: 1.03

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their current ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Debt / Equity (MRQ)

Monolithic Power Systems (MPWR) at 0.01 keeps leverage in the lower quartile, while ASE (ASX) at 0.87 sits in the higher-leverage quartile.

ASX

Semiconductors & Semiconductor Equipment industry group

0.87

Max: 1.46
ASX: 0.87
Q3: 0.65
Median: 0.27
Q1: 0.04
Min: 0.00

MPWR

Semiconductors & Semiconductor Equipment industry group

0.01

Max: 1.46
Q3: 0.65
Median: 0.27
Q1: 0.04
MPWR: 0.01
Min: 0.00

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their debt-to-equity ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Financial Strength Metrics

Financial strength metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
Current Ratio (MRQ)	1.16	3.70
Debt / Equity (MRQ)	0.87	0.01
Net Debt / EBITDA	1.85	-0.92

Dividends

Dividend Yield (TTM)

ASE (ASX) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Monolithic Power Systems (MPWR) reports a yield of 0.67%, ranking against industry peers normally.

ASX

Semiconductors & Semiconductor Equipment industry group

0.00%

Max: 1.37%
Q3: 0.65%
ASX: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

MPWR

Semiconductors & Semiconductor Equipment industry group

0.67%

Max: 1.37%
MPWR: 0.67%
Q3: 0.65%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their dividend yield against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

Both ASE (ASX) at 39.77% and Monolithic Power Systems (MPWR) at 41.65% pay out an above-typical share of earnings for their industries, leaving thinner cover if profits dip.

ASX

Semiconductors & Semiconductor Equipment industry group

39.77%

Max: 49.64%
ASX: 39.77%
Q3: 21.71%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

MPWR

Semiconductors & Semiconductor Equipment industry group

41.65%

Max: 49.64%
MPWR: 41.65%
Q3: 21.71%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their payout ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
Dividend Yield (TTM)	0.00%	0.67%
Dividend Payout Ratio (TTM)	39.77%	41.65%

Valuation

P/E Ratio (TTM)

Both ASE (ASX) at 30.41 and Monolithic Power Systems (MPWR) at 65.27 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.

ASX

Semiconductors & Semiconductor Equipment industry group

30.41

Max: 110.34
Q3: 66.81
Median: 37.02
ASX: 30.41
Q1: 23.96
Min: 8.12

MPWR

Semiconductors & Semiconductor Equipment industry group

65.27

Max: 110.34
Q3: 66.81
MPWR: 65.27
Median: 37.02
Q1: 23.96
Min: 8.12

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their P/E ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/S Ratio (TTM)

ASE (ASX) at 0.09 looks cheap on sales in the lower P/S ratio quartile, while Monolithic Power Systems (MPWR) at 15.53 looks rich in the upper quartile — a clear gap in price per dollar of revenue.

ASX

Semiconductors & Semiconductor Equipment industry group

0.09

Max: 21.42
Q3: 12.27
Median: 5.76
Q1: 2.73
ASX: 0.09
Min: 0.00

MPWR

Semiconductors & Semiconductor Equipment industry group

15.53

Max: 21.42
MPWR: 15.53
Q3: 12.27
Median: 5.76
Q1: 2.73
Min: 0.00

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their P/S ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/B Ratio (MRQ)

ASE (ASX) at 5.34 sits near its industry’s typical P/B ratio, while Monolithic Power Systems (MPWR) at 15.56 prices above its benchmark range — MPWR looks rich relative to book.

ASX

Semiconductors & Semiconductor Equipment industry group

5.34

Max: 14.06
Q3: 7.44
ASX: 5.34
Median: 4.29
Q1: 2.30
Min: 0.20

MPWR

Semiconductors & Semiconductor Equipment industry group

15.56

MPWR: 15.56
Max: 14.06
Q3: 7.44
Median: 4.29
Q1: 2.30
Min: 0.20

ASE (ASX) vs. Monolithic Power Systems (MPWR): A comparison of their P/B ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for ASE (ASX) and Monolithic Power Systems (MPWR)
Metric	ASX	MPWR
P/E Ratio (TTM)	30.41	65.27
P/S Ratio (TTM)	0.09	15.53
P/B Ratio (MRQ)	5.34	15.56
Free Cash Flow Yield (TTM)	-275.26%	0.87%