When holding the United States Natural Gas Fund (UNG) ETF, how long should you stay invested to have high probability to achieve a positive return?
Over the selected period (~36 years), the longest duration with a negative return was 427 months (from May 1990 to November 2025). 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.
United States Natural Gas Fund (UNG) 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 Nov 30, 2025, the annualized return of the previous 10 years has been -20.14%.
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 |
|---|---|---|---|
|
-77.97%
Jul 2008 - Jun 2009 |
-9.77% |
+325.00%
Jan 2000 - Dec 2000 |
56.01%
233 out of 416 |
|
-78.66%
Jun 2022 - May 2023 |
-11.67% |
+310.88%
Jan 2000 - Dec 2000 |
58.89%
245 out of 416 |
|
-67.50%
Sep 2022 - Aug 2024 |
-9.11% |
+124.18%
Jan 1999 - Dec 2000 |
60.64%
245 out of 404 |
|
-68.50%
Sep 2022 - Aug 2024 |
-11.93% |
+117.53%
Jan 1999 - Dec 2000 |
64.11%
259 out of 404 |
|
-55.60%
Jul 2008 - Jun 2011 |
-9.37% |
+62.83%
Jan 1998 - Dec 2000 |
59.95%
235 out of 392 |
|
-56.09%
Jul 2008 - Jun 2011 |
-11.19% |
+58.75%
Jan 1998 - Dec 2000 |
64.54%
253 out of 392 |
|
-55.93%
Jun 2008 - May 2012 |
-12.28% |
+57.82%
Oct 2001 - Sep 2005 |
59.74%
227 out of 380 |
|
-56.59%
Jun 2008 - May 2012 |
-14.46% |
+53.54%
Oct 2001 - Sep 2005 |
62.89%
239 out of 380 |
|
-48.11%
Jul 2008 - Jun 2013 |
-14.12% |
+30.14%
Jan 1996 - Dec 2000 |
58.97%
217 out of 368 |
|
-48.80%
Jul 2008 - Jun 2013 |
-15.42% |
+26.89%
Jan 1996 - Dec 2000 |
62.50%
230 out of 368 |
|
-39.54%
Jul 2008 - Jun 2014 |
-14.57% |
+34.03%
Jan 1995 - Dec 2000 |
60.39%
215 out of 356 |
|
-40.41%
Jul 2008 - Jun 2014 |
-16.83% |
+30.70%
Jan 1995 - Dec 2000 |
64.33%
229 out of 356 |
|
-40.33%
Jul 2008 - Jun 2015 |
-15.95% |
+30.79%
Sep 1998 - Aug 2005 |
59.01%
203 out of 344 |
|
-41.09%
Jul 2008 - Jun 2015 |
-17.57% |
+27.43%
Sep 1998 - Aug 2005 |
61.34%
211 out of 344 |
|
-40.61%
Jun 2008 - May 2016 |
-17.10% |
+24.56%
Jan 1993 - Dec 2000 |
62.95%
209 out of 332 |
|
-41.40%
Jun 2008 - May 2016 |
-19.14% |
+21.41%
Jan 1993 - Dec 2000 |
65.06%
216 out of 332 |
|
-38.04%
Jul 2008 - Jun 2017 |
-15.33% |
+24.68%
Jan 1992 - Dec 2000 |
63.13%
202 out of 320 |
|
-38.83%
Jul 2008 - Jun 2017 |
-17.41% |
+21.48%
Jan 1992 - Dec 2000 |
64.38%
206 out of 320 |
|
-35.87%
Jul 2008 - Jun 2018 |
-15.71% |
+23.04%
Oct 1995 - Sep 2005 |
63.64%
196 out of 308 |
|
-36.79%
Jul 2008 - Jun 2018 |
-17.64% |
+19.87%
Oct 1995 - Sep 2005 |
64.94%
200 out of 308 |
|
-34.28%
Jul 2008 - Jun 2019 |
-16.56% |
+21.35%
Oct 1994 - Sep 2005 |
64.86%
192 out of 296 |
|
-35.23%
Jul 2008 - Jun 2019 |
-18.62% |
+18.23%
Oct 1994 - Sep 2005 |
68.24%
202 out of 296 |
|
-35.60%
Jul 2008 - Jun 2020 |
-15.86% |
+16.23%
Oct 1993 - Sep 2005 |
69.01%
196 out of 284 |
|
-36.49%
Jul 2008 - Jun 2020 |
-17.73% |
+13.21%
Oct 1993 - Sep 2005 |
70.07%
199 out of 284 |
|
-32.61%
Jun 2008 - May 2021 |
-15.39% |
+17.89%
Jul 1995 - Jun 2008 |
71.69%
195 out of 272 |
|
-33.75%
Jun 2008 - May 2021 |
-17.19% |
+14.71%
Jul 1995 - Jun 2008 |
73.90%
201 out of 272 |
|
-29.34%
Dec 2006 - Nov 2020 |
-15.02% |
+16.38%
Jan 1992 - Dec 2005 |
74.23%
193 out of 260 |
|
-30.62%
Dec 2006 - Nov 2020 |
-16.76% |
+13.42%
Jan 1992 - Dec 2005 |
75.38%
196 out of 260 |
|
-31.43%
Jun 2008 - May 2023 |
-14.73% |
+14.53%
Sep 1990 - Aug 2005 |
75.40%
187 out of 248 |
|
-32.98%
Jun 2008 - May 2023 |
-16.44% |
+11.52%
Sep 1990 - Aug 2005 |
79.84%
198 out of 248 |
|
-31.86%
May 2008 - Apr 2024 |
-14.90% |
+14.36%
Jul 1992 - Jun 2008 |
82.20%
194 out of 236 |
|
-33.47%
May 2008 - Apr 2024 |
-16.62% |
+11.26%
Jul 1992 - Jun 2008 |
84.75%
200 out of 236 |
|
-30.84%
Jul 2008 - Jun 2025 |
-13.48% |
+15.00%
Jul 1991 - Jun 2008 |
86.16%
193 out of 224 |
|
-32.41%
Jul 2008 - Jun 2025 |
-15.33% |
+11.87%
Jul 1991 - Jun 2008 |
87.95%
197 out of 224 |
|
-28.21%
Nov 2007 - Oct 2025 |
-13.22% |
+12.67%
Jul 1990 - Jun 2008 |
88.68%
188 out of 212 |
|
-29.94%
Nov 2007 - Oct 2025 |
-15.05% |
+9.49%
Jul 1990 - Jun 2008 |
91.98%
195 out of 212 |
|
-28.56%
Nov 2005 - Oct 2024 |
-12.60% |
+3.42%
Jun 1990 - May 2009 |
92.50%
185 out of 200 |
|
-30.27%
Nov 2005 - Oct 2024 |
-14.47% |
+0.73%
Jun 1990 - May 2009 |
98.00%
196 out of 200 |
|
-27.72%
Oct 2005 - Sep 2025 |
-12.35% |
+0.95%
Aug 1990 - Jul 2010 |
98.94%
186 out of 188 |
|
-29.47%
Oct 2005 - Sep 2025 |
-14.21% |
-1.60%
Aug 1990 - Jul 2010 |
100.00%
188 out of 188 |
|
-20.15%
Dec 2000 - Nov 2025 |
-10.72% |
-5.57%
Aug 1990 - Jul 2015 |
100.00%
128 out of 128 |
|
-22.11%
Dec 2000 - Nov 2025 |
-12.67% |
-7.82%
Aug 1990 - Jul 2015 |
100.00%
128 out of 128 |
|
-14.09%
Nov 1994 - Oct 2024 |
-11.24% |
-7.00%
May 1992 - Apr 2022 |
100.00%
68 out of 68 |
|
-16.20%
Nov 1994 - Oct 2024 |
-13.20% |
-9.23%
May 1992 - Apr 2022 |
100.00%
68 out of 68 |
United States Natural Gas Fund (UNG) ETF: Historical Returns

