COST.TO vs. ^NDX

Last updated Jul 17, 2026

COST.TO (Costco CDR (CAD Hedged)) is a stock, while ^NDX (NASDAQ 100 Index) is an index. Over the past 3 years, COST.TO returned 18.94%/yr vs 25.16%/yr for ^NDX. At a 0.35 correlation, their price movements are largely independent.

Performance

COST.TO vs. ^NDX - Performance Comparison

The chart below illustrates the hypothetical performance of a CA$10,000 investment in Costco CDR (CAD Hedged) (COST.TO) and NASDAQ 100 Index (^NDX). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, COST.TO achieves a 8.81% return, which is significantly lower than ^NDX's 17.83% return.

COST.TO

• 1D: 3.15%
• 1M: -4.42%
• 6M: -1.84%
• YTD: 8.81%
• 1Y: -2.17%
• 3Y*: 18.94%
• 5Y*: —
• 10Y*: —

^NDX

• 1D: -1.72%
• 1M: -2.82%
• 6M: 14.86%
• YTD: 17.83%
• 1Y: 29.67%
• 3Y*: 25.16%
• 5Y*: 17.13%
• 10Y*: 21.14%

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

COST.TO vs. ^NDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
COST.TO Costco CDR (CAD Hedged)	8.81%	-7.82%	37.46%	47.35%	-11.77%
^NDX NASDAQ 100 Index	17.83%	14.68%	35.45%	50.15%	-6.96%

Correlation

The correlation between COST.TO and ^NDX is -0.11, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.11
Correlation (3Y) Calculated over the trailing 3-year period	0.24
Correlation (All Time) Calculated using the full available price history since Jul 26, 2022	0.35

The correlation between COST.TO and ^NDX shifts across timeframes, from -0.11 (1 year) to 0.35 (all time), reflecting how their relationship changes across market environments.

Return for Risk

COST.TO vs. ^NDX — Risk / Return Rank

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

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

^NDX

^NDX Risk / Return Rank: 52
^NDX Sharpe Ratio Rank: 48
^NDX Sortino Ratio Rank: 43
^NDX Omega Ratio Rank: 48
^NDX Calmar Ratio Rank: 59
^NDX Martin Ratio Rank: 64

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.TO vs. ^NDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Costco CDR (CAD Hedged) (COST.TO) and NASDAQ 100 Index (^NDX). 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.TO	^NDX	Difference
Sharpe ratio: Return per unit of total volatility	-0.11	1.58	-1.69
Sortino ratio: Return per unit of downside risk	-0.02	2.17	-2.19
Omega ratio: Gain probability vs. loss probability	1.00	1.27	-0.28
Calmar ratio: Return relative to maximum drawdown	-0.13	2.41	-2.54
Martin ratio: Return relative to average drawdown	-0.29	7.63	-7.93

COST.TO vs. ^NDX - Sharpe Ratio Comparison

The current COST.TO Sharpe Ratio is -0.11, which is lower than the ^NDX Sharpe Ratio of 1.58. The chart below compares the historical Sharpe Ratios of COST.TO and ^NDX, 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.TO vs. ^NDX - Drawdown Comparison

The maximum COST.TO drawdown since its inception was -22.42%, smaller than the maximum ^NDX drawdown of -38.10%. Use the drawdown chart below to compare losses from any high point for COST.TO and ^NDX.

Drawdown Indicators

	COST.TO	^NDX	Difference
Max Drawdown Largest peak-to-trough decline	-22.42%	-38.10%	+15.68%
Max Drawdown (1Y) Largest decline over 1 year	-16.67%	-12.37%	-4.30%
Max Drawdown (3Y) Largest decline over 3 years	-22.42%	-22.81%	+0.39%
Max Drawdown (5Y) Largest decline over 5 years	—	-32.52%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-32.52%	—
Current Drawdown Current decline from peak	-14.41%	-5.29%	-9.12%
Average Drawdown Average peak-to-trough decline	-7.73%	-6.87%	-0.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.47%	3.90%	+3.57%

Volatility

COST.TO vs. ^NDX - Volatility Comparison

The current volatility for Costco CDR (CAD Hedged) (COST.TO) is 7.09%, while NASDAQ 100 Index (^NDX) has a volatility of 7.63%. This indicates that COST.TO experiences smaller price fluctuations and is considered to be less risky than ^NDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COST.TO	^NDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.09%	7.63%	-0.54%
Volatility (6M) Calculated over the trailing 6-month period	15.24%	15.70%	-0.46%
Volatility (1Y) Calculated over the trailing 1-year period	19.73%	18.88%	+0.85%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.19%	23.78%	-2.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.19%	23.65%	-2.46%

Frequently Asked Questions

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

COST.TO and ^NDX have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.