When holding the BMO Long Federal Bond Index ETF (ZFL.TO) ETF, how long should you stay invested to have high probability to achieve a positive return?
Over the selected period (~31 years), the longest duration with a negative return was 159 months (from June 2012 to August 2025).
This indicates that, within the same timeframe, any rolling period of 160 months or more has consistently resulted in a positive return.
Understanding this metric is crucial as it highlights the importance of a safe investment horizon. Knowing the minimum duration required to likely see positive returns helps investors set realistic expectations and reinforces the strategy of staying invested through market cycles. This approach can mitigate the emotional reactions to short-term market fluctuations and enhance the likelihood of achieving financial goals.
BMO Long Federal Bond Index ETF (ZFL.TO) ETF: Historical Returns
Previous vs subsequent Returns
Is there a correlation between past and future returns over all 10-year rolling periods?
The following chart illustrates the relationship between past returns (x-axis) and subsequent returns (y-axis).
Data points are aggregated to show occurrences, and you can zoom in by clicking or drawing over the desired area.
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As of Sep 30, 2025, the annualized return of the previous 10 years has been -0.67%.
Rolling Returns
A rolling return is a measure of investment performance that calculates the return of an investment over a set period of time, with the starting date rolling forward. This approach can provide a more accurate representation of the investment's historical performance and helps investors to evaluate the investment's consistency over time.
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Rolling Period Analysis
By selecting the 'Rolling Period', the chart and data will update. To study a different date range, change the simulation settings.
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| Worst | Median | Best | Negative Periods |
|---|---|---|---|
|
-23.93%
Jan 2022 - Dec 2022 |
+7.09% |
+29.76%
Aug 1996 - Jul 1997 |
21.04%
77 out of 366 |
|
-28.45%
Jan 2022 - Dec 2022 |
+5.35% |
+27.60%
Aug 1996 - Jul 1997 |
27.60%
101 out of 366 |
|
-16.80%
Jul 2020 - Jun 2022 |
+6.89% |
+23.98%
Dec 1994 - Nov 1996 |
16.67%
59 out of 354 |
|
-21.18%
Jul 2020 - Jun 2022 |
+4.78% |
+21.54%
Dec 1994 - Nov 1996 |
25.71%
91 out of 354 |
|
-13.69%
Oct 2020 - Sep 2023 |
+6.35% |
+21.90%
Feb 1995 - Jan 1998 |
12.57%
43 out of 342 |
|
-17.80%
Oct 2020 - Sep 2023 |
+4.53% |
+19.94%
Feb 1995 - Jan 1998 |
17.25%
59 out of 342 |
|
-9.27%
May 2020 - Apr 2024 |
+6.11% |
+19.37%
Jul 1994 - Jun 1998 |
12.73%
42 out of 330 |
|
-13.01%
May 2020 - Apr 2024 |
+4.20% |
+17.37%
Jul 1994 - Jun 1998 |
14.55%
48 out of 330 |
|
-7.58%
Aug 2020 - Jul 2025 |
+6.57% |
+15.86%
Jul 1994 - Jun 1999 |
13.21%
42 out of 318 |
|
-10.92%
Aug 2020 - Jul 2025 |
+4.62% |
+13.92%
Jul 1994 - Jun 1999 |
16.35%
52 out of 318 |
|
-4.76%
Sep 2019 - Aug 2025 |
+6.95% |
+13.71%
Jul 1994 - Jun 2000 |
13.73%
42 out of 306 |
|
-7.67%
Sep 2019 - Aug 2025 |
+5.03% |
+11.62%
Jul 1994 - Jun 2000 |
15.03%
46 out of 306 |
|
-3.90%
Oct 2016 - Sep 2023 |
+7.08% |
+13.01%
Nov 1994 - Oct 2001 |
14.29%
42 out of 294 |
|
-6.71%
Oct 2016 - Sep 2023 |
+5.15% |
+10.85%
Nov 1994 - Oct 2001 |
15.31%
45 out of 294 |
|
-2.10%
Oct 2015 - Sep 2023 |
+6.96% |
+11.93%
Jan 1995 - Dec 2002 |
12.77%
36 out of 282 |
|
-4.77%
Oct 2015 - Sep 2023 |
+4.86% |
+9.74%
Jan 1995 - Dec 2002 |
14.89%
42 out of 282 |
|
-2.26%
Sep 2016 - Aug 2025 |
+6.79% |
+12.21%
Jul 1994 - Jun 2003 |
8.89%
24 out of 270 |
|
-4.91%
Sep 2016 - Aug 2025 |
+4.81% |
+9.95%
Jul 1994 - Jun 2003 |
15.93%
43 out of 270 |
|
-1.04%
Sep 2015 - Aug 2025 |
+6.78% |
+11.65%
Feb 1995 - Jan 2005 |
4.26%
11 out of 258 |
|
-3.56%
Sep 2015 - Aug 2025 |
+4.86% |
+9.49%
Feb 1995 - Jan 2005 |
16.67%
43 out of 258 |
|
-0.66%
Oct 2012 - Sep 2023 |
+6.76% |
+11.97%
Jul 1994 - Jun 2005 |
2.03%
5 out of 246 |
|
-3.00%
Oct 2012 - Sep 2023 |
+4.81% |
+9.70%
Jul 1994 - Jun 2005 |
15.85%
39 out of 246 |
|
+0.08%
Jun 2012 - May 2024 |
+6.85% |
+11.15%
Dec 1994 - Nov 2006 |
0.00%
0 out of 234 |
|
-2.22%
Jun 2012 - May 2024 |
+4.84% |
+8.99%
Dec 1994 - Nov 2006 |
15.38%
36 out of 234 |
|
-0.00%
Aug 2012 - Jul 2025 |
+6.81% |
+10.47%
Dec 1994 - Nov 2007 |
0.45%
1 out of 222 |
|
-2.33%
Aug 2012 - Jul 2025 |
+4.97% |
+8.27%
Dec 1994 - Nov 2007 |
12.61%
28 out of 222 |
|
+0.86%
Oct 2011 - Sep 2025 |
+6.74% |
+10.57%
Jan 1995 - Dec 2008 |
0.00%
0 out of 210 |
|
-1.37%
Oct 2011 - Sep 2025 |
+4.94% |
+8.44%
Jan 1995 - Dec 2008 |
10.00%
21 out of 210 |
|
+1.31%
Sep 2010 - Aug 2025 |
+6.51% |
+10.06%
Jul 1994 - Jun 2009 |
0.00%
0 out of 198 |
|
-1.00%
Sep 2010 - Aug 2025 |
+4.62% |
+7.89%
Jul 1994 - Jun 2009 |
3.54%
7 out of 198 |
|
+2.00%
Sep 2009 - Aug 2025 |
+6.65% |
+10.02%
Jul 1994 - Jun 2010 |
0.00%
0 out of 186 |
|
-0.29%
Sep 2009 - Aug 2025 |
+4.65% |
+7.93%
Jul 1994 - Jun 2010 |
2.15%
4 out of 186 |
|
+2.15%
Sep 2008 - Aug 2025 |
+6.64% |
+10.18%
Feb 1995 - Jan 2012 |
0.00%
0 out of 174 |
|
+0.03%
Oct 2006 - Sep 2023 |
+4.78% |
+8.05%
Feb 1995 - Jan 2012 |
0.00%
0 out of 174 |
|
+2.45%
Oct 2005 - Sep 2023 |
+6.57% |
+10.23%
Jul 1994 - Jun 2012 |
0.00%
0 out of 162 |
|
+0.31%
Oct 2005 - Sep 2023 |
+4.61% |
+8.08%
Jul 1994 - Jun 2012 |
0.00%
0 out of 162 |
|
+2.49%
Sep 2006 - Aug 2025 |
+6.47% |
+9.37%
May 1994 - Apr 2013 |
0.00%
0 out of 150 |
|
+0.32%
Sep 2006 - Aug 2025 |
+4.49% |
+7.30%
May 1994 - Apr 2013 |
0.00%
0 out of 150 |
|
+2.49%
Sep 2005 - Aug 2025 |
+6.23% |
+9.57%
Feb 1995 - Jan 2015 |
0.00%
0 out of 138 |
|
+0.32%
Sep 2005 - Aug 2025 |
+4.25% |
+7.60%
Feb 1995 - Jan 2015 |
0.00%
0 out of 138 |
|
+3.90%
Oct 1998 - Sep 2023 |
+5.22% |
+8.36%
Jul 1994 - Jun 2019 |
0.00%
0 out of 78 |
|
+1.63%
Oct 1998 - Sep 2023 |
+3.03% |
+6.40%
Aug 1995 - Jul 2020 |
0.00%
0 out of 78 |
|
+5.30%
Sep 1995 - Aug 2025 |
+5.91% |
+6.19%
Aug 1994 - Jul 2024 |
0.00%
0 out of 18 |
|
+3.11%
Sep 1995 - Aug 2025 |
+3.68% |
+3.96%
Aug 1994 - Jul 2024 |
0.00%
0 out of 18 |
BMO Long Federal Bond Index ETF (ZFL.TO) ETF: Historical Returns

