iShares $ Treasury Bond 20+yr UCITS GBP Hedged (Dist) (IDTG.L): Rolling Returns

Simulation Settings
Category:
Period: January 1950 - July 2025 (~76 years)
Initial Amount: 1ÂŁ
Currency: GBP
Inflation: UK
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When holding the iShares $ Treasury Bond 20+yr UCITS GBP Hedged (Dist) (IDTG.L) ETF, how long should you stay invested to have high probability to achieve a positive return?

Over the selected period (~76 years), the longest duration with a negative return was 178 months (from January 2009 to October 2023).

This indicates that, within the same timeframe, any rolling period of 179 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.

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.

ISHARES $ TREASURY BOND 20+YR UCITS GBP HEDGED (DIST) (IDTG.L) ETF
Previous vs Next Returns - 10 Years annualized
Time Period: 1 August 1995 - 31 July 2025 (30 Years)
Time Period: 1 January 1950 - 31 July 2025 (~76 years)
30 Years
(1995/08 - 2025/07)
All Data
(1950/01 - 2025/07)

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As of Jul 31, 2025, the annualized return of the previous 10 years has been -1.70%.

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.

ISHARES $ TREASURY BOND 20+YR UCITS GBP HEDGED (DIST) (IDTG.L) ETF
Annualized Rolling Returns
Annualized Rolling Returns - Inflation Adjusted
Time Period: 1 August 1995 - 31 July 2025 (30 Years)
Time Period: 1 January 1950 - 31 July 2025 (~76 years)
30 Years
(1995/08 - 2025/07)
All Data
(1950/01 - 2025/07)
UK Inflation Adjusted:

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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.

ISHARES $ TREASURY BOND 20+YR UCITS GBP HEDGED (DIST) (IDTG.L) ETF
Rolling Returns Chart
Rolling Returns Chart - Inflation Adjusted
Time Period: 1 January 1950 - 31 July 2025 (~76 years)
Over Time
Histogram
UK Inflation Adjusted:

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Worst Median Best Negative Periods
-34.22%
Nov 2021 - Oct 2022
+5.28% +72.78%
Apr 1985 - Mar 1986
26.67%
239 out of 896
-40.77%
Nov 2021 - Oct 2022
+0.81% +65.81%
Apr 1985 - Mar 1986
46.09%
413 out of 896
-23.43%
Nov 2021 - Oct 2023
+5.78% +52.93%
Jul 1984 - Jun 1986
19.46%
172 out of 884
-28.96%
Nov 2021 - Oct 2023
+1.95% +46.05%
Jul 1984 - Jun 1986
39.14%
346 out of 884
-17.87%
Nov 2020 - Oct 2023
+6.55% +33.01%
Jun 1984 - May 1987
12.61%
110 out of 872
-22.94%
Nov 2020 - Oct 2023
+2.42% +27.13%
Jun 1984 - May 1987
36.58%
319 out of 872
-13.61%
May 2020 - Apr 2024
+6.56% +31.62%
Jul 1982 - Jun 1986
8.95%
77 out of 860
-17.97%
May 2020 - Apr 2024
+2.51% +25.89%
Jul 1982 - Jun 1986
39.53%
340 out of 860
-10.71%
Aug 2020 - Jul 2025
+6.90% +29.38%
Sep 1981 - Aug 1986
7.08%
60 out of 848
-14.93%
Aug 2020 - Jul 2025
+2.20% +22.97%
Sep 1981 - Aug 1986
38.33%
325 out of 848
-5.30%
Nov 2017 - Oct 2023
+7.19% +22.98%
Sep 1981 - Aug 1987
4.90%
41 out of 836
-10.23%
Mar 1974 - Feb 1980
+2.17% +17.04%
Sep 1981 - Aug 1987
39.59%
331 out of 836
-5.07%
Nov 2016 - Oct 2023
+7.29% +21.86%
Oct 1981 - Sep 1988
4.25%
35 out of 824
-10.13%
Apr 1973 - Mar 1980
+2.73% +16.30%
Jul 1982 - Jun 1989
38.71%
319 out of 824
-3.93%
Jul 2016 - Jun 2024
+7.26% +21.44%
Oct 1981 - Sep 1989
4.31%
35 out of 812
-11.02%
Oct 1973 - Sep 1981
+3.15% +15.68%
Oct 1981 - Sep 1989
36.08%
293 out of 812
-3.69%
Aug 2016 - Jul 2025
+7.64% +21.48%
Jul 1984 - Jun 1993
3.13%
25 out of 800
-10.14%
Oct 1972 - Sep 1981
+3.44% +15.77%
Jul 1984 - Jun 1993
34.25%
274 out of 800
-2.82%
Feb 2015 - Jan 2025
+7.51% +20.48%
Oct 1981 - Sep 1991
2.79%
22 out of 788
-9.34%
Oct 1971 - Sep 1981
+3.54% +14.20%
Oct 1981 - Sep 1991
36.17%
285 out of 788
-1.77%
Nov 2012 - Oct 2023
+7.29% +20.35%
Oct 1981 - Sep 1992
2.58%
20 out of 776
-7.89%
Oct 1970 - Sep 1981
+3.53% +14.41%
Jul 1982 - Jun 1993
35.95%
279 out of 776
-1.09%
Jun 2012 - May 2024
+7.51% +20.59%
Oct 1981 - Sep 1993
2.75%
21 out of 764
-7.62%
Sep 1969 - Aug 1981
+3.53% +14.76%
Oct 1981 - Sep 1993
37.30%
285 out of 764
-1.10%
Aug 2012 - Jul 2025
+7.71% +18.14%
Sep 1981 - Aug 1994
0.80%
6 out of 752
-7.97%
Oct 1968 - Sep 1981
+3.48% +12.97%
Jul 1982 - Jun 1995
37.50%
282 out of 752
+0.87%
Jan 2009 - Dec 2022
+7.99% +18.36%
Oct 1981 - Sep 1995
0.00%
0 out of 740
-7.51%
Oct 1967 - Sep 1981
+3.65% +13.07%
Oct 1981 - Sep 1995
37.70%
279 out of 740
+0.83%
Jan 2009 - Dec 2023
+7.99% +17.22%
Oct 1981 - Sep 1996
0.00%
0 out of 728
-7.11%
Oct 1966 - Sep 1981
+3.78% +12.16%
Oct 1981 - Sep 1996
36.68%
267 out of 728
+0.40%
Jan 2009 - Dec 2024
+7.99% +16.96%
Oct 1981 - Sep 1997
0.00%
0 out of 716
-6.91%
Oct 1965 - Sep 1981
+3.70% +12.11%
Jul 1982 - Jun 1998
37.57%
269 out of 716
+2.13%
Feb 2008 - Jan 2025
+8.11% +17.30%
Oct 1981 - Sep 1998
0.00%
0 out of 704
-6.54%
Oct 1964 - Sep 1981
+3.81% +12.61%
Oct 1981 - Sep 1998
35.51%
250 out of 704
+2.10%
Jun 1952 - May 1970
+8.20% +15.78%
Oct 1981 - Sep 1999
0.00%
0 out of 692
-6.21%
Oct 1963 - Sep 1981
+3.99% +11.33%
Oct 1981 - Sep 1999
35.55%
246 out of 692
+1.89%
Jan 1951 - Dec 1969
+8.60% +15.41%
Oct 1981 - Sep 2000
0.00%
0 out of 680
-5.85%
Oct 1962 - Sep 1981
+4.22% +11.72%
Jun 1984 - May 2003
34.85%
237 out of 680
+1.75%
Jan 1950 - Dec 1969
+8.83% +15.37%
Oct 1981 - Sep 2001
0.00%
0 out of 668
-5.42%
Oct 1961 - Sep 1981
+3.98% +11.24%
Oct 1981 - Sep 2001
34.73%
232 out of 668
+2.94%
Jan 1950 - Dec 1974
+9.30% +13.92%
Oct 1981 - Sep 2006
0.00%
0 out of 608
-4.12%
Oct 1956 - Sep 1981
+3.37% +10.28%
Oct 1981 - Sep 2006
28.78%
175 out of 608
+3.20%
Mar 1950 - Feb 1980
+9.52% +13.49%
Oct 1981 - Sep 2011
0.00%
0 out of 548
-3.75%
Sep 1951 - Aug 1981
+3.53% +9.88%
Oct 1981 - Sep 2011
18.25%
100 out of 548
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