IDMO vs. PSA.TO

Last updated Jun 14, 2026

IDMO (Invesco S&P International Developed Momentum ETF) and PSA.TO (Purpose High Interest Savings Fund) are both exchange-traded funds - IDMO is a Momentum fund tracking the S&P Momentum Developed ex U.S. & South Korea LargeMidCap Index, while PSA.TO is a Money Market fund actively managed by Purpose Investments. IDMO is passively managed, while PSA.TO is actively managed. Over the past 10 years, IDMO returned 12.64%/yr vs 1.39%/yr for PSA.TO. At a 0.04 correlation, their price movements are largely independent. IDMO charges 0.25%/yr vs 0.17%/yr for PSA.TO.

Performance

IDMO vs. PSA.TO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco S&P International Developed Momentum ETF (IDMO) and Purpose High Interest Savings Fund (PSA.TO). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

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

Returns By Period

In the year-to-date period, IDMO achieves a 8.17% return, which is significantly higher than PSA.TO's -1.03% return. Over the past 10 years, IDMO has outperformed PSA.TO with an annualized return of 12.64%, while PSA.TO has yielded a comparatively lower 1.39% annualized return.

IDMO

• 1D: 1.36%
• 1M: 1.48%
• YTD: 8.17%
• 6M: 10.09%
• 1Y: 24.72%
• 3Y*: 25.21%
• 5Y*: 15.50%
• 10Y*: 12.64%

PSA.TO

• 1D: -0.16%
• 1M: -1.63%
• YTD: -1.03%
• 6M: -0.32%
• 1Y: -0.42%
• 3Y*: 2.18%
• 5Y*: 0.24%
• 10Y*: 1.39%

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

IDMO vs. PSA.TO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IDMO Invesco S&P International Developed Momentum ETF	8.17%	42.17%	12.79%	20.16%	-12.03%	14.31%	22.01%	26.09%	-16.66%	29.21%
PSA.TO Purpose High Interest Savings Fund	-1.03%	7.55%	-3.61%	7.69%	-3.77%	0.66%	3.38%	6.61%	-6.23%	8.42%

Correlation

The correlation between IDMO and PSA.TO is 0.01, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.01
Correlation (3Y) Calculated over the trailing 3-year period	0.05
Correlation (5Y) Calculated over the trailing 5-year period	0.02
Correlation (10Y) Calculated over the trailing 10-year period	0.01
Correlation (All Time) Calculated using the full available price history since Oct 15, 2013	0.04

Return for Risk

IDMO vs. PSA.TO — Risk / Return Rank

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

IDMO

IDMO Risk / Return Rank: 44
IDMO Sharpe Ratio Rank: 42
IDMO Sortino Ratio Rank: 43
IDMO Omega Ratio Rank: 42
IDMO Calmar Ratio Rank: 43
IDMO Martin Ratio Rank: 51

PSA.TO

PSA.TO Risk / Return Rank: 99
PSA.TO Sharpe Ratio Rank: 99
PSA.TO Sortino Ratio Rank: 99
PSA.TO Omega Ratio Rank: 99
PSA.TO Calmar Ratio Rank: 100
PSA.TO Martin Ratio Rank: 100

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.

IDMO vs. PSA.TO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco S&P International Developed Momentum ETF (IDMO) and Purpose High Interest Savings Fund (PSA.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.

	IDMO	PSA.TO	Difference
Sharpe ratio: Return per unit of total volatility	1.30	0.03	+1.27
Sortino ratio: Return per unit of downside risk	1.93	0.08	+1.85
Omega ratio: Gain probability vs. loss probability	1.24	1.01	+0.24
Calmar ratio: Return relative to maximum drawdown	1.89	0.04	+1.84
Martin ratio: Return relative to average drawdown	7.64	0.08	+7.56

IDMO vs. PSA.TO - Sharpe Ratio Comparison

The current IDMO Sharpe Ratio is 1.30, which is higher than the PSA.TO Sharpe Ratio of 0.03. The chart below compares the historical Sharpe Ratios of IDMO and PSA.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

IDMO vs. PSA.TO - Drawdown Comparison

The maximum IDMO drawdown since its inception was -39.38%, which is greater than PSA.TO's maximum drawdown of -27.47%. Use the drawdown chart below to compare losses from any high point for IDMO and PSA.TO.

Drawdown Indicators

	IDMO	PSA.TO	Difference
Max Drawdown Largest peak-to-trough decline	-39.38%	-27.47%	-11.91%
Max Drawdown (1Y) Largest decline over 1 year	-12.31%	-2.97%	-9.34%
Max Drawdown (3Y) Largest decline over 3 years	-12.65%	-7.62%	-5.03%
Max Drawdown (5Y) Largest decline over 5 years	-27.07%	-10.54%	-16.53%
Max Drawdown (10Y) Largest decline over 10 years	-31.34%	-12.51%	-18.83%
Current Drawdown Current decline from peak	-1.92%	-5.01%	+3.09%
Average Drawdown Average peak-to-trough decline	-9.74%	-12.58%	+2.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.04%	1.54%	+1.50%

Volatility

IDMO vs. PSA.TO - Volatility Comparison

Invesco S&P International Developed Momentum ETF (IDMO) has a higher volatility of 7.92% compared to Purpose High Interest Savings Fund (PSA.TO) at 0.75%. This indicates that IDMO's price experiences larger fluctuations and is considered to be riskier than PSA.TO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IDMO	PSA.TO	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.92%	0.75%	+7.17%
Volatility (6M) Calculated over the trailing 6-month period	16.02%	3.20%	+12.82%
Volatility (1Y) Calculated over the trailing 1-year period	17.92%	4.37%	+13.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.03%	6.29%	+11.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.18%	6.62%	+11.56%

IDMO vs. PSA.TO - Expense Ratio Comparison

IDMO has a 0.25% expense ratio, which is higher than PSA.TO's 0.17% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

IDMO vs. PSA.TO - Dividend Comparison

IDMO's dividend yield for the trailing twelve months is around 3.52%, more than PSA.TO's 2.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IDMO Invesco S&P International Developed Momentum ETF	3.52%	3.71%	2.24%	2.89%	3.66%	1.81%	1.63%	2.78%	3.27%	3.08%	2.18%	2.52%
PSA.TO Purpose High Interest Savings Fund	2.33%	2.61%	4.46%	5.05%	2.26%	0.59%	0.94%	2.18%	1.66%	1.07%	0.99%	1.07%

Frequently Asked Questions

Can I hold both IDMO and PSA.TO in my portfolio?

IDMO and PSA.TO have a correlation of 0.01, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, IDMO or PSA.TO?

On fees, PSA.TO is cheaper at 0.17% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, IDMO or PSA.TO?

PSA.TO is cheaper with a 0.17% expense ratio, compared with 0.25% for IDMO.

What is the main difference between IDMO and PSA.TO?

IDMO is categorized as Momentum, while PSA.TO is Money Market. They also come from different issuers: Invesco and Purpose Investments. Their fees differ too: 0.25% for IDMO and 0.17% for PSA.TO.