ARM vs. MTSI: Arm Holdings vs. MACOM Stock Comparison

November 11, 2026

How do Arm Holdings (ARM) and MACOM (MTSI) 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

Arm Holdings (ARM) and MACOM (MTSI) are both classified in the Semiconductors sub-industry within the broader Semiconductors & Semiconductor Equipment industry, placing them in the closest GICS peer bucket.

MACOM (MTSI) trades as ordinary local shares, while Arm Holdings (ARM) trades as an ADR — compare with FX exposure, depositary-program fees, and dividend-withholding-tax differences in mind.

Company profile comparison for Arm Holdings (ARM) and MACOM (MTSI)
Profile Item	ARM	MTSI
Name	Arm Holdings plc ADR	MACOM Technology Solutions Holdings, Inc.
Country/Region	United Kingdom	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	186.84 billion USD	16.11 billion USD
Currency	USD	USD
Exchange	Nasdaq	Nasdaq
Listing Date	September 14, 2023	March 15, 2012
Security Type	ADR	Common Stock

Price Performance

Cumulative Growth

ARM

MTSI

GSPC

Arm Holdings (ARM) vs. MACOM (MTSI), 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 Arm Holdings (ARM) and MACOM (MTSI). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Arm Holdings (ARM) and MACOM (MTSI). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
Total Return (1Y)	23.60%	33.29%
Total Return (3Y, Annualized)	53.99%	46.28%
Total Return (5Y, Annualized)	--	25.03%

Risk Profile

Drawdown History

ARM

MTSI

GSPC

Arm Holdings (ARM) vs. MACOM (MTSI), 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 Arm Holdings (ARM) and MACOM (MTSI). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
Volatility (1Y, Annualized)	82.24%	68.69%
Beta (5Y)	3.92	1.83
Max Drawdown (5Y)	-62.06%	-53.54%
Avg. Volume (3M)	5.05M	1.51M

Risk-Adjusted Performance

Risk-Return Positioning

ARM and MTSI 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 Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
Sharpe Ratio (1Y)	0.23	0.42
Sortino Ratio (1Y)	0.38	0.58

Profitability

ROE (TTM)

Both Arm Holdings (ARM) at 11.35% and MACOM (MTSI) at 22.17% land near their industries’ usual ROE ranges, so capital efficiency looks broadly in line with peers on both sides.

ARM

Semiconductors & Semiconductor Equipment industry group

11.35%

Max: 52.82%
Q3: 22.26%
ARM: 11.35%
Median: 10.58%
Q1: 1.29%
Min: -16.89%

MTSI

Semiconductors & Semiconductor Equipment industry group

22.17%

Max: 52.82%
Q3: 22.26%
MTSI: 22.17%
Median: 10.58%
Q1: 1.29%
Min: -16.89%

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their ROE against the Semiconductors & Semiconductor Equipment industry group benchmark.

Net Margin (TTM)

Both Arm Holdings (ARM) at 17.13% and MACOM (MTSI) at 25.25% keep about the typical share of revenue as profit for their industries — neither bottom line stands out from peers.

ARM

Semiconductors & Semiconductor Equipment industry group

17.13%

Max: 63.80%
Q3: 28.36%
ARM: 17.13%
Median: 11.44%
Q1: 0.90%
Min: -37.77%

MTSI

Semiconductors & Semiconductor Equipment industry group

25.25%

Max: 63.80%
Q3: 28.36%
MTSI: 25.25%
Median: 11.44%
Q1: 0.90%
Min: -37.77%

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their net margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Operating Margin (TTM)

MACOM (MTSI) at 31.66% operates in the top operating margin quartile, ahead of Arm Holdings (ARM) at 13.93%, which runs around its industry’s norm.

ARM

Semiconductors & Semiconductor Equipment industry group

13.93%

Max: 58.66%
Q3: 30.23%
Median: 15.91%
ARM: 13.93%
Q1: 7.54%
Min: -25.74%

MTSI

Semiconductors & Semiconductor Equipment industry group

31.66%

Max: 58.66%
MTSI: 31.66%
Q3: 30.23%
Median: 15.91%
Q1: 7.54%
Min: -25.74%

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their operating margin against the Semiconductors & Semiconductor Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
ROE (TTM)	11.35%	22.17%
ROA (TTM)	5.50%	8.66%
Net Margin (TTM)	17.13%	25.25%
Operating Margin (TTM)	13.93%	31.66%
Gross Margin (TTM)	97.44%	58.11%

Growth

Revenue Growth

Only one side can be read here: Arm Holdings (ARM) reports revenue growth of 22.79%, ranked against its industry; MACOM (MTSI) has no revenue growth figure this period.

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their Revenue Growth across different time periods.

EPS Growth

Only one side can be read here: Arm Holdings (ARM) reports EPS growth of 13.33%, ranked against its industry; MACOM (MTSI) has no EPS growth figure this period.

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
Revenue Growth (YoY)	22.79%	--
Revenue Growth (3Y CAGR)	22.46%	--
EPS Growth (YoY)	13.33%	--
EPS Growth (3Y CAGR)	18.51%	49.88%

Financial Strength

Current Ratio (MRQ)

MACOM (MTSI) at 2.54 keeps current ratio within its industry’s typical mid-range, while Arm Holdings (ARM) at 6.35 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.

ARM

Semiconductors & Semiconductor Equipment industry group

6.35

Max: 10.33
ARM: 6.35
Q3: 5.62
Median: 3.33
Q1: 2.35
Min: 1.03

MTSI

Semiconductors & Semiconductor Equipment industry group

2.54

Max: 10.33
Q3: 5.62
Median: 3.33
MTSI: 2.54
Q1: 2.35
Min: 1.03

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their current ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Debt / Equity (MRQ)

Both Arm Holdings (ARM) at 0.06 and MACOM (MTSI) at 0.24 fund their balance sheets with roughly industry-typical debt-to-equity mixes.

ARM

Semiconductors & Semiconductor Equipment industry group

0.06

Max: 1.46
Q3: 0.65
Median: 0.27
ARM: 0.06
Q1: 0.04
Min: 0.00

MTSI

Semiconductors & Semiconductor Equipment industry group

0.24

Max: 1.46
Q3: 0.65
Median: 0.27
MTSI: 0.24
Q1: 0.04
Min: 0.00

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their debt-to-equity ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
Current Ratio (MRQ)	6.35	2.54
Debt / Equity (MRQ)	0.06	0.24
Net Debt / EBITDA	-2.77	-1.04

Dividends

Dividend Yield (TTM)

Neither Arm Holdings (ARM) nor MACOM (MTSI) pays a dividend this period — they may reinvest, use buybacks, or simply not return cash through dividends.

ARM

Semiconductors & Semiconductor Equipment industry group

0.00%

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

MTSI

Semiconductors & Semiconductor Equipment industry group

0.00%

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

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their dividend yield against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

Neither Arm Holdings (ARM) nor MACOM (MTSI) pays a dividend this period — they may reinvest, use buybacks, or simply not return cash through dividends.

ARM

Semiconductors & Semiconductor Equipment industry group

0.00%

Max: 49.64%
Q3: 21.71%
ARM: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

MTSI

Semiconductors & Semiconductor Equipment industry group

0.00%

Max: 49.64%
Q3: 21.71%
MTSI: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their payout ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
Dividend Yield (TTM)	0.00%	0.00%
Dividend Payout Ratio (TTM)	0.00%	0.00%

Valuation

P/E Ratio (TTM)

MACOM (MTSI) at 48.95 is near its industry’s usual P/E ratio, while Arm Holdings (ARM) at 200.71 sits above its peer range — an unusually expensive price for ARM’s trailing earnings.

ARM

Semiconductors & Semiconductor Equipment industry group

200.71

ARM: 200.71
Max: 110.34
Q3: 66.81
Median: 37.02
Q1: 23.96
Min: 8.12

MTSI

Semiconductors & Semiconductor Equipment industry group

48.95

Max: 110.34
Q3: 66.81
MTSI: 48.95
Median: 37.02
Q1: 23.96
Min: 8.12

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their P/E ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/S Ratio (TTM)

MACOM (MTSI) at 12.14 prices around its industry’s typical P/S ratio, while Arm Holdings (ARM) at 34.20 clears its benchmark range — ARM looks notably rich on sales.

ARM

Semiconductors & Semiconductor Equipment industry group

34.20

ARM: 34.20
Max: 21.42
Q3: 12.27
Median: 5.76
Q1: 2.73
Min: 0.00

MTSI

Semiconductors & Semiconductor Equipment industry group

12.14

Max: 21.42
Q3: 12.27
MTSI: 12.14
Median: 5.76
Q1: 2.73
Min: 0.00

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their P/S ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

P/B Ratio (MRQ)

Both look rich against book: MACOM (MTSI) at 9.50 sits in the upper P/B ratio quartile, and Arm Holdings (ARM) at 20.56 prices even higher, above its industry range.

ARM

Semiconductors & Semiconductor Equipment industry group

20.56

ARM: 20.56
Max: 14.06
Q3: 7.44
Median: 4.29
Q1: 2.30
Min: 0.20

MTSI

Semiconductors & Semiconductor Equipment industry group

9.50

Max: 14.06
MTSI: 9.50
Q3: 7.44
Median: 4.29
Q1: 2.30
Min: 0.20

Arm Holdings (ARM) vs. MACOM (MTSI): A comparison of their P/B ratio against the Semiconductors & Semiconductor Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for Arm Holdings (ARM) and MACOM (MTSI)
Metric	ARM	MTSI
P/E Ratio (TTM)	200.71	48.95
P/S Ratio (TTM)	34.20	12.14
P/B Ratio (MRQ)	20.56	9.50
Free Cash Flow Yield (TTM)	0.61%	1.15%