A side-by-side comparison of BMO Money Market Fund ETF Series (ZMMK) and Purpose High Interest Savings Fund (PSA) to help Canadian investors make an informed decision.
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1-Year Performance
Normalised to 100 at the start — shows relative return over the trailing 12 months.
Head-to-Head Comparison
| Metric | ZMMK | PSA |
|---|---|---|
| YTD Return | +0.14%✓ | +0.12% |
| 1-Day Change | +0.02%✓ | 0.00% |
| 1-Week Change | +0.06%✓ | +0.04% |
| 1-Month Change | 0.00% | -0.02%✓ |
| Current Price | $49.90 | $50.08 |
| AUM | $5.69B✓ | $3.10B |
| MER (Expense Ratio) | 0.12% | 0%✓ |
| Dividend Yield | 3.12%✓ | 2.33% |
| Distribution Frequency | Monthly | Monthly |
| Inception Date | 2021-11-29 | 2013-10-15 |
| Holdings Count | 1 | 1 |
| MorningStar Rating | — | — |
| Category | Canadian Money Market | Canadian Money Market |
| Beta | 0.00 | 0.00 |
| 52-Week High | $49.91 | $50.08 |
| 52-Week Low | $48.69 | $48.94 |
| 50-Day MA | $49.87 | $50.05 |
| 200-Day MA | $49.88 | $50.05 |
✓ marks the better value for return/yield/AUM metrics. Lower ✓ for MER.
Annualised Returns
| Period | ZMMK | PSA |
|---|---|---|
| YTD | +0.14%✓ | +0.12% |
| 1 Year | +2.48%✓ | +2.37% |
| 3 Year | +3.84%✓ | +3.71% |
| 5 Year | — | +3.18% |
| 10 Year | — | +2.26% |
| 1Y Volatility | 0.06% | 0.08% |
| Sharpe Ratio (3Y) | 2.98 | -0.07 |
Past performance is not a guarantee of future results.
Sector Weights
| Sector | ZMMK | PSA |
|---|---|---|
| Basic Materials | 0.00% | 0.00% |
| Communication Services | 0.00% | 0.00% |
| Consumer Cyclicals | 0.00% | 0.00% |
| Consumer Defensive | 0.00% | 0.00% |
| Energy | 0.00% | 0.00% |
| Financial Services | 0.00% | 0.00% |
| Healthcare | 0.00% | 0.00% |
| Industrials | 0.00% | 0.00% |
| Real Estate | 0.00% | 0.00% |
| Technology | 0.00% | 0.00% |
| Utilities | 0.00% | 0.00% |
About ZMMK
BMO Money Market ETF seeks to provide income and liquidity consistent with short-term money market rates while preserving capital by investing primarily in Canadian dollar-denominated money market securities and other instruments.
About PSA
The purpose of this fund: Generate best-in-class yields and access your cash anytime.
Which ETF is Right for You?
Both ZMMK and PSA are listed on Canadian exchanges and accessible through most Canadian brokerages including Questrade, Wealthsimple Trade, TD Direct, and Interactive Brokers.
Based on the available data, ZMMK scores higher across our tracked metrics including YTD performance, dividend yield, and AUM — though both ETFs warrant individual research before investing.
- Consider your account type (TFSA, RRSP, non-registered) as it can affect dividend taxation.
- Compare management expense ratios (MER) directly on each provider's website.
- Look at average daily trading volume to assess liquidity.
- Review the fund's underlying index and holdings to ensure the exposure matches your goals.
This is not financial advice. Always do your own research or consult a licensed financial advisor before investing.
Frequently Asked Questions
What is the difference between ZMMK and PSA?
ZMMK (BMO Money Market Fund ETF Series) and PSA (Purpose High Interest Savings Fund) are both Canadian-listed ETFs. Key differences include their AUM ($5.69B vs $3.10B), dividend yield (3.12% vs 2.33%), and year-to-date performance (+0.14% vs +0.12%).
Is ZMMK better than PSA?
There is no single "better" ETF — it depends on your investment goals. If you prioritise recent performance, ZMMK has outperformed year-to-date. Always review the fund's prospectus and consider your tax situation.
Can I buy ZMMK and PSA on Wealthsimple?
Most Canadian-listed ETFs are available on Wealthsimple Trade commission-free. Both ZMMK and PSA should be accessible. Check Wealthsimple's supported tickers list to confirm availability.
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