TSTX-U.TO vs. ZSDB.TO

Last updated Apr 2, 2026

Compare and contrast key facts about Global X 1-3 Year U.S. Treasury Bond Index ETF (TSTX-U.TO) and BMO Short-Term Discount Bond ETF (ZSDB.TO).

TSTX-U.TO and ZSDB.TO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. TSTX-U.TO is a passively managed fund by Global X that tracks the performance of the ICE U.S. Treasury 1-3 Year Bond Index. It was launched on Oct 7, 2025. ZSDB.TO is an actively managed fund by BMO. It was launched on Jan 24, 2022.

Performance

TSTX-U.TO vs. ZSDB.TO - Performance Comparison

The chart below illustrates the hypothetical performance of a CA$10,000 investment in Global X 1-3 Year U.S. Treasury Bond Index ETF (TSTX-U.TO) and BMO Short-Term Discount Bond ETF (ZSDB.TO). The values are adjusted to include any dividend payments, if applicable.

TSTX-U.TO vs. ZSDB.TO - Yearly Performance Comparison

	2026 (YTD)	2025
TSTX-U.TO Global X 1-3 Year U.S. Treasury Bond Index ETF	0.04%	1.20%
ZSDB.TO BMO Short-Term Discount Bond ETF	0.01%	-0.96%

Returns By Period

In the year-to-date period, TSTX-U.TO achieves a 0.04% return, which is significantly higher than ZSDB.TO's 0.01% return.

TSTX-U.TO

• 1D: 0.00%
• 1M: -0.22%
• YTD: 0.04%
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

ZSDB.TO

• 1D: 0.00%
• 1M: -0.68%
• YTD: 0.01%
• 6M: -0.86%
• 1Y: 0.86%
• 3Y*: 5.37%
• 5Y*: —
• 10Y*: —

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

TSTX-U.TO vs. ZSDB.TO - Expense Ratio Comparison

TSTX-U.TO has a 0.15% expense ratio, which is higher than ZSDB.TO's 0.09% 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%.

TSTX-U.TO

Global X 1-3 Year U.S. Treasury Bond Index ETF

ZSDB.TO

BMO Short-Term Discount Bond ETF

Return for Risk

TSTX-U.TO vs. ZSDB.TO — Risk / Return Rank

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

ZSDB.TO

ZSDB.TO Risk / Return Rank: 19
ZSDB.TO Sharpe Ratio Rank: 21
ZSDB.TO Sortino Ratio Rank: 17
ZSDB.TO Omega Ratio Rank: 20
ZSDB.TO Calmar Ratio Rank: 20
ZSDB.TO Martin Ratio Rank: 19

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.

TSTX-U.TO vs. ZSDB.TO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X 1-3 Year U.S. Treasury Bond Index ETF (TSTX-U.TO) and BMO Short-Term Discount Bond ETF (ZSDB.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.

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

Sharpe Ratios by Period

	TSTX-U.TO	ZSDB.TO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.38	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.64	1.13	+0.52

Correlation

The correlation between TSTX-U.TO and ZSDB.TO is 0.46, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

TSTX-U.TO vs. ZSDB.TO - Dividend Comparison

TSTX-U.TO's dividend yield for the trailing twelve months is around 1.69%, more than ZSDB.TO's 1.31% yield.

	TTM	2025	2024	2023	2022
TSTX-U.TO Global X 1-3 Year U.S. Treasury Bond Index ETF	1.69%	0.84%	0.00%	0.00%	0.00%
ZSDB.TO BMO Short-Term Discount Bond ETF	1.31%	1.28%	1.33%	1.75%	1.82%

Drawdowns

TSTX-U.TO vs. ZSDB.TO - Drawdown Comparison

The maximum TSTX-U.TO drawdown since its inception was -0.90%, smaller than the maximum ZSDB.TO drawdown of -4.88%. Use the drawdown chart below to compare losses from any high point for TSTX-U.TO and ZSDB.TO.

Drawdown Indicators

	TSTX-U.TO	ZSDB.TO	Difference
Max Drawdown Largest peak-to-trough decline	-0.90%	-4.88%	+3.98%
Max Drawdown (1Y) Largest decline over 1 year	—	-1.93%	—
Current Drawdown Current decline from peak	-0.54%	-1.39%	+0.85%
Average Drawdown Average peak-to-trough decline	-0.19%	-0.76%	+0.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.67%	—

Volatility

Volatility by Period

	TSTX-U.TO	ZSDB.TO	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.91%	—
Volatility (6M) Calculated over the trailing 6-month period	—	1.98%	—
Volatility (1Y) Calculated over the trailing 1-year period	1.61%	2.31%	-0.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.61%	4.27%	-2.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.61%	4.27%	-2.66%