When holding the iShares $ Treasury Bond 20+yr UCITS USD (Dist) (IBTL.L) ETF, how long should you stay invested to have high probability to achieve a positive return?
Over the selected period (~155 years), the longest duration with a negative return was 133 months (from February 2015 to February 2026). This negative serie is not closed yet.
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.
iShares $ Treasury Bond 20+yr UCITS USD (Dist) (IBTL.L) 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 Feb 28, 2026, the annualized return of the previous 10 years has been -0.62%.
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 |
|---|---|---|---|
|
-29.20%
Jan 2009 - Dec 2009 |
+4.09% |
+81.73%
Jan 2008 - Dec 2008 |
24.04%
445 out of 1851 |
|
-38.22%
Mar 1979 - Feb 1980 |
+2.38% |
+76.35%
Jan 2008 - Dec 2008 |
38.03%
704 out of 1851 |
|
-18.02%
Dec 2021 - Nov 2023 |
+4.20% |
+51.98%
May 1981 - Apr 1983 |
14.57%
268 out of 1839 |
|
-26.62%
Mar 1978 - Feb 1980 |
+2.48% |
+42.48%
May 1981 - Apr 1983 |
31.65%
582 out of 1839 |
|
-15.55%
Nov 2020 - Oct 2023 |
+4.42% |
+43.01%
Feb 1982 - Jan 1985 |
9.69%
177 out of 1827 |
|
-23.38%
Mar 1977 - Feb 1980 |
+2.46% |
+36.17%
Feb 1982 - Jan 1985 |
31.09%
568 out of 1827 |
|
-12.83%
May 2020 - Apr 2024 |
+4.60% |
+39.22%
Feb 1981 - Jan 1985 |
5.95%
108 out of 1815 |
|
-21.94%
Nov 1976 - Oct 1980 |
+2.59% |
+30.44%
Feb 1981 - Jan 1985 |
30.03%
545 out of 1815 |
|
-11.15%
Jul 2020 - Jun 2025 |
+4.75% |
+34.95%
Apr 1981 - Mar 1986 |
4.66%
84 out of 1803 |
|
-15.60%
Nov 1976 - Oct 1981 |
+2.69% |
+27.21%
Apr 1981 - Mar 1986 |
30.39%
548 out of 1803 |
|
-7.45%
Sep 2019 - Aug 2025 |
+4.85% |
+31.96%
Nov 1980 - Oct 1986 |
3.35%
60 out of 1791 |
|
-12.46%
Mar 1974 - Feb 1980 |
+2.72% |
+24.34%
Nov 1980 - Oct 1986 |
28.92%
518 out of 1791 |
|
-4.06%
Nov 2016 - Oct 2023 |
+5.13% |
+26.37%
Mar 1980 - Feb 1987 |
3.04%
54 out of 1779 |
|
-11.92%
Dec 1973 - Nov 1980 |
+2.99% |
+18.25%
Mar 1980 - Feb 1987 |
28.05%
499 out of 1779 |
|
-2.74%
Sep 2017 - Aug 2025 |
+5.18% |
+21.67%
Sep 1981 - Aug 1989 |
2.38%
42 out of 1767 |
|
-11.54%
Nov 1972 - Oct 1980 |
+2.82% |
+15.91%
Sep 1981 - Aug 1989 |
27.39%
484 out of 1767 |
|
-2.89%
Sep 2016 - Aug 2025 |
+5.25% |
+22.15%
Nov 1980 - Oct 1989 |
1.71%
30 out of 1755 |
|
-10.02%
Nov 1971 - Oct 1980 |
+2.95% |
+15.58%
Nov 1980 - Oct 1989 |
27.01%
474 out of 1755 |
|
-0.75%
Feb 1950 - Jan 1960 |
+5.17% |
+18.78%
May 1981 - Apr 1991 |
0.57%
10 out of 1743 |
|
-9.08%
Apr 1971 - Mar 1981 |
+2.92% |
+12.47%
May 1981 - Apr 1991 |
28.17%
491 out of 1743 |
|
-0.66%
Feb 2015 - Jan 2026 |
+5.09% |
+18.99%
Mar 1982 - Feb 1993 |
0.06%
1 out of 1731 |
|
-8.42%
Nov 1969 - Oct 1980 |
+2.99% |
+13.31%
Mar 1982 - Feb 1993 |
28.25%
489 out of 1731 |
|
+0.45%
Feb 1950 - Jan 1962 |
+5.13% |
+19.88%
Mar 1981 - Feb 1993 |
0.00%
0 out of 1719 |
|
-8.53%
Nov 1968 - Oct 1980 |
+2.97% |
+13.63%
Mar 1981 - Feb 1993 |
30.19%
519 out of 1719 |
|
+0.70%
Jun 2012 - May 2025 |
+4.99% |
+19.72%
Nov 1980 - Oct 1993 |
0.00%
0 out of 1707 |
|
-7.99%
Feb 1968 - Jan 1981 |
+2.78% |
+13.49%
Nov 1980 - Oct 1993 |
29.35%
501 out of 1707 |
|
+0.91%
Apr 1950 - Mar 1964 |
+4.93% |
+17.87%
Mar 1980 - Feb 1994 |
0.00%
0 out of 1695 |
|
-7.11%
May 1967 - Apr 1981 |
+2.59% |
+11.91%
Feb 1982 - Jan 1996 |
27.96%
474 out of 1695 |
|
+0.98%
Mar 1951 - Feb 1966 |
+5.03% |
+17.62%
Feb 1981 - Jan 1996 |
0.00%
0 out of 1683 |
|
-6.67%
Nov 1965 - Oct 1980 |
+2.65% |
+12.09%
Feb 1981 - Jan 1996 |
28.28%
476 out of 1683 |
|
+0.86%
Sep 1950 - Aug 1966 |
+5.13% |
+16.39%
Mar 1980 - Feb 1996 |
0.00%
0 out of 1671 |
|
-6.45%
Nov 1964 - Oct 1980 |
+2.82% |
+10.73%
Nov 1980 - Oct 1996 |
27.47%
459 out of 1671 |
|
+1.28%
Mar 1950 - Feb 1967 |
+5.19% |
+15.80%
Feb 1981 - Jan 1998 |
0.00%
0 out of 1659 |
|
-6.09%
Nov 1963 - Oct 1980 |
+2.79% |
+10.75%
Feb 1981 - Jan 1998 |
27.00%
448 out of 1659 |
|
+1.36%
Jun 1952 - May 1970 |
+5.22% |
+15.65%
Nov 1980 - Oct 1998 |
0.00%
0 out of 1647 |
|
-5.81%
Nov 1962 - Oct 1980 |
+2.67% |
+10.68%
Feb 1981 - Jan 1999 |
26.59%
438 out of 1647 |
|
+1.13%
Jan 1951 - Dec 1969 |
+5.23% |
+14.88%
Mar 1980 - Feb 1999 |
0.00%
0 out of 1635 |
|
-5.46%
Nov 1961 - Oct 1980 |
+2.64% |
+10.43%
Sep 1981 - Aug 2000 |
25.50%
417 out of 1635 |
|
+1.09%
Jun 1950 - May 1970 |
+5.16% |
+15.11%
Dec 1980 - Nov 2000 |
0.00%
0 out of 1623 |
|
-5.29%
Nov 1960 - Oct 1980 |
+2.66% |
+10.67%
May 1981 - Apr 2001 |
25.94%
421 out of 1623 |
|
+2.28%
Apr 1950 - Mar 1975 |
+5.00% |
+12.78%
Jan 1981 - Dec 2005 |
0.00%
0 out of 1563 |
|
-4.65%
Nov 1955 - Oct 1980 |
+2.56% |
+8.88%
Jan 1981 - Dec 2005 |
23.61%
369 out of 1563 |
|
+2.22%
Mar 1950 - Feb 1980 |
+5.12% |
+12.28%
Oct 1981 - Sep 2011 |
0.00%
0 out of 1503 |
|
-4.66%
Nov 1950 - Oct 1980 |
+2.30% |
+8.71%
Oct 1981 - Sep 2011 |
19.43%
292 out of 1503 |
iShares $ Treasury Bond 20+yr UCITS USD (Dist) (IBTL.L) ETF: Historical Returns

