COST vs. COST.TO

Last updated Jul 17, 2026

COST (Costco Wholesale Corporation) and COST.TO (Costco CDR (CAD Hedged)) are both stocks. Both operate in the Discount Stores industry within the Consumer Defensive sector. Over the past 3 years, COST returned 21.19%/yr vs 16.59%/yr for COST.TO. Their correlation of 0.91 suggests significant overlap in exposure.

Performance

COST vs. COST.TO - Performance Comparison

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

Different Trading Currencies

COST is traded in USD, while COST.TO is traded in CAD. To make them comparable, the COST.TO values have been converted to USD using the latest available exchange rates.

Returns By Period

In the year-to-date period, COST achieves a 9.96% return, which is significantly higher than COST.TO's 6.13% return.

COST

• 1D: 3.17%
• 1M: -4.17%
• 6M: -0.89%
• YTD: 9.96%
• 1Y: -0.05%
• 3Y*: 21.19%
• 5Y*: 19.45%
• 10Y*: 20.93%

COST.TO

• 1D: 3.23%
• 1M: -4.76%
• 6M: -2.93%
• YTD: 6.13%
• 1Y: -4.44%
• 3Y*: 16.59%
• 5Y*: —
• 10Y*: —

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

COST vs. COST.TO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
COST Costco Wholesale Corporation	9.96%	-5.39%	39.62%	49.00%	-13.42%
COST.TO Costco CDR (CAD Hedged)	6.13%	-3.41%	26.73%	50.94%	-16.33%

Correlation

The correlation between COST and COST.TO is 0.94, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.94
Correlation (3Y) Calculated over the trailing 3-year period	0.91
Correlation (All Time) Calculated using the full available price history since Jul 26, 2022	0.91

The correlation between COST and COST.TO has been stable across timeframes, ranging from 0.91 to 0.94 - a consistent structural relationship.

Return for Risk

COST vs. COST.TO — Risk / Return Rank

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

COST

COST Risk / Return Rank: 41
COST Sharpe Ratio Rank: 45
COST Sortino Ratio Rank: 36
COST Omega Ratio Rank: 36
COST Calmar Ratio Rank: 45
COST Martin Ratio Rank: 44

COST.TO

COST.TO Risk / Return Rank: 37
COST.TO Sharpe Ratio Rank: 40
COST.TO Sortino Ratio Rank: 32
COST.TO Omega Ratio Rank: 33
COST.TO Calmar Ratio Rank: 40
COST.TO Martin Ratio Rank: 39

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.

COST vs. COST.TO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Costco Wholesale Corporation (COST) and Costco CDR (CAD Hedged) (COST.TO). 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.

	COST	COST.TO	Difference
Sharpe ratio: Return per unit of total volatility	-0.00	-0.23	+0.23
Sortino ratio: Return per unit of downside risk	0.13	-0.19	+0.32
Omega ratio: Gain probability vs. loss probability	1.02	0.98	+0.04
Calmar ratio: Return relative to maximum drawdown	-0.00	-0.23	+0.23
Martin ratio: Return relative to average drawdown	-0.01	-0.54	+0.53

COST vs. COST.TO - Sharpe Ratio Comparison

The current COST Sharpe Ratio is -0.00, which is higher than the COST.TO Sharpe Ratio of -0.23. The chart below compares the historical Sharpe Ratios of COST and COST.TO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

COST vs. COST.TO - Drawdown Comparison

The maximum COST drawdown since its inception was -53.39%, which is greater than COST.TO's maximum drawdown of -24.04%. Use the drawdown chart below to compare losses from any high point for COST and COST.TO.

Drawdown Indicators

	COST	COST.TO	Difference
Max Drawdown Largest peak-to-trough decline	-53.39%	-24.04%	-29.35%
Max Drawdown (1Y) Largest decline over 1 year	-16.57%	-19.19%	+2.62%
Max Drawdown (3Y) Largest decline over 3 years	-20.74%	-20.73%	-0.01%
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	-13.59%	-15.64%	+2.05%
Average Drawdown Average peak-to-trough decline	-13.36%	-8.53%	-4.83%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.28%	8.28%	-1.00%

Volatility

COST vs. COST.TO - Volatility Comparison

Costco Wholesale Corporation (COST) and Costco CDR (CAD Hedged) (COST.TO) have volatilities of 7.57% and 7.26%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COST	COST.TO	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.57%	7.26%	+0.31%
Volatility (6M) Calculated over the trailing 6-month period	15.00%	14.83%	+0.17%
Volatility (1Y) Calculated over the trailing 1-year period	19.76%	19.45%	+0.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.90%	21.66%	+1.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.01%	21.66%	+0.35%

Dividends

COST vs. COST.TO - Dividend Comparison

COST's dividend yield for the trailing twelve months is around 0.57%, which matches COST.TO's 0.57% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COST Costco Wholesale Corporation	0.57%	0.59%	0.49%	2.87%	0.76%	0.54%	3.38%	0.86%	1.08%	4.81%	1.09%	4.06%
COST.TO Costco CDR (CAD Hedged)	0.57%	0.59%	0.50%	2.88%	0.39%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Financials

Frequently Asked Questions

Can I hold both COST and COST.TO in my portfolio?

With a correlation of 0.94, COST and COST.TO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.