MASI vs. COST

Last updated Jul 14, 2026

MASI (Masimo Corporation) and COST (Costco Wholesale Corporation) are both stocks. MASI operates in Medical Instruments & Supplies (Healthcare), while COST operates in Discount Stores (Consumer Defensive). At a 0.32 correlation, their price movements are largely independent.

Performance

MASI vs. COST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Masimo Corporation (MASI) and Costco Wholesale Corporation (COST). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

MASI

• 1D: —
• 1M: —
• 6M: —
• YTD: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

COST

• 1D: 1.11%
• 1M: -5.69%
• 6M: -1.49%
• YTD: 7.73%
• 1Y: -3.99%
• 3Y*: 20.82%
• 5Y*: 18.99%
• 10Y*: 20.76%

*Multi-year figures are annualized to reflect compound growth (CAGR)

MASI vs. COST - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MASI Masimo Corporation	38.36%	-21.32%	41.03%	-20.78%	-49.47%	9.09%	69.80%	47.21%	26.62%	25.82%
COST Costco Wholesale Corporation	7.73%	-5.39%	39.62%	49.00%	-19.05%	51.82%	32.67%	45.70%	10.60%	22.37%

Correlation

The correlation between MASI and COST is 0.14, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.14
Correlation (3Y) Calculated over the trailing 3-year period	0.22
Correlation (5Y) Calculated over the trailing 5-year period	0.31
Correlation (10Y) Calculated over the trailing 10-year period	0.32
Correlation (All Time) Calculated using the full available price history since Aug 8, 2007	0.32

The correlation between MASI and COST shifts across timeframes, from 0.14 (1 year) to 0.32 (10 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap MASI : $9.47B COST : $410.85B
EPS MASI : $1.41 COST : $26.51
PE Ratio MASI : 127.36 COST : 34.95
PS Ratio MASI : 6.24 COST : 1.05
Total Revenue (TTM) MASI : $1.56B COST : $293.59B
Gross Profit (TTM) MASI : $962.00M COST : $11.12B
EBITDA (TTM) MASI : $336.40M COST : $12.48B

Return for Risk

MASI vs. COST — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

MASI

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

COST

COST Risk / Return Rank: 34
COST Sharpe Ratio Rank: 36
COST Sortino Ratio Rank: 30
COST Omega Ratio Rank: 31
COST Calmar Ratio Rank: 37
COST Martin Ratio Rank: 35

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

MASI vs. COST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Masimo Corporation (MASI) and Costco Wholesale Corporation (COST). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	MASI	COST	Difference
Sharpe ratio: Return per unit of total volatility	—	-0.20	—
Sortino ratio: Return per unit of downside risk	—	-0.15	—
Omega ratio: Gain probability vs. loss probability	—	0.98	—
Calmar ratio: Return relative to maximum drawdown	—	-0.24	—
Martin ratio: Return relative to average drawdown	—	-0.56	—

Drawdowns

Drawdown Indicators

	MASI	COST	Difference
Max Drawdown Largest peak-to-trough decline	—	-53.39%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-16.57%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-20.74%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-31.40%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-31.40%	—
Current Drawdown Current decline from peak	—	-15.34%	—
Average Drawdown Average peak-to-trough decline	—	-13.36%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	7.14%	—

Volatility

Volatility by Period

	MASI	COST	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	6.82%	—
Volatility (6M) Calculated over the trailing 6-month period	—	14.82%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	19.61%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	22.86%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	21.99%	—

Dividends

MASI vs. COST - Dividend Comparison

MASI has not paid dividends to shareholders, while COST's dividend yield for the trailing twelve months is around 0.58%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COST Costco Wholesale Corporation	0.58%	0.59%	0.49%	2.87%	0.76%	0.54%	3.38%	0.86%	1.08%	4.81%	1.09%	4.06%
MASI Masimo Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

MASI vs. COST - Profitability Comparison

The chart below illustrates the profitability comparison between Masimo Corporation and Costco Wholesale Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

MASI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, Masimo Corporation reported a gross profit of 250.80M and revenue of 403.60M. Therefore, the gross margin over that period was 62.1%.

COST - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, Costco Wholesale Corporation reported a gross profit of -17.68B and revenue of 70.53B. Therefore, the gross margin over that period was -25.1%.

MASI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, Masimo Corporation reported an operating income of 77.40M and revenue of 403.60M, resulting in an operating margin of 19.2%.

COST - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, Costco Wholesale Corporation reported an operating income of 2.82B and revenue of 70.53B, resulting in an operating margin of 4.0%.

MASI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, Masimo Corporation reported a net income of 57.10M and revenue of 403.60M, resulting in a net margin of 14.2%.

COST - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, Costco Wholesale Corporation reported a net income of 2.19B and revenue of 70.53B, resulting in a net margin of 3.1%.

Frequently Asked Questions

Can I hold both MASI and COST in my portfolio?

MASI and COST have a correlation of 0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.