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 (~35 years), the longest duration with a negative return was 425 months (from May 1990 to September 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 Sep 30, 2025, the annualized return of the previous 10 years has been -23.31%.
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 |
-10.15% |
+325.00%
Jan 2000 - Dec 2000 |
56.28%
233 out of 414 |
|
-78.66%
Jun 2022 - May 2023 |
-12.15% |
+310.88%
Jan 2000 - Dec 2000 |
58.94%
244 out of 414 |
|
-67.50%
Sep 2022 - Aug 2024 |
-9.06% |
+124.18%
Jan 1999 - Dec 2000 |
60.45%
243 out of 402 |
|
-68.50%
Sep 2022 - Aug 2024 |
-11.84% |
+117.53%
Jan 1999 - Dec 2000 |
63.93%
257 out of 402 |
|
-55.60%
Jul 2008 - Jun 2011 |
-8.59% |
+62.83%
Jan 1998 - Dec 2000 |
59.74%
233 out of 390 |
|
-56.09%
Jul 2008 - Jun 2011 |
-10.51% |
+58.75%
Jan 1998 - Dec 2000 |
64.36%
251 out of 390 |
|
-55.93%
Jun 2008 - May 2012 |
-11.41% |
+57.82%
Oct 2001 - Sep 2005 |
59.52%
225 out of 378 |
|
-56.59%
Jun 2008 - May 2012 |
-13.78% |
+53.54%
Oct 2001 - Sep 2005 |
62.70%
237 out of 378 |
|
-48.11%
Jul 2008 - Jun 2013 |
-13.82% |
+30.14%
Jan 1996 - Dec 2000 |
58.74%
215 out of 366 |
|
-48.80%
Jul 2008 - Jun 2013 |
-14.91% |
+26.89%
Jan 1996 - Dec 2000 |
62.30%
228 out of 366 |
|
-39.54%
Jul 2008 - Jun 2014 |
-13.04% |
+34.03%
Jan 1995 - Dec 2000 |
60.17%
213 out of 354 |
|
-40.41%
Jul 2008 - Jun 2014 |
-15.31% |
+30.70%
Jan 1995 - Dec 2000 |
64.12%
227 out of 354 |
|
-40.33%
Jul 2008 - Jun 2015 |
-15.78% |
+30.79%
Sep 1998 - Aug 2005 |
58.77%
201 out of 342 |
|
-41.09%
Jul 2008 - Jun 2015 |
-17.21% |
+27.43%
Sep 1998 - Aug 2005 |
61.11%
209 out of 342 |
|
-40.61%
Jun 2008 - May 2016 |
-16.80% |
+24.56%
Jan 1993 - Dec 2000 |
62.73%
207 out of 330 |
|
-41.40%
Jun 2008 - May 2016 |
-18.90% |
+21.41%
Jan 1993 - Dec 2000 |
64.85%
214 out of 330 |
|
-38.04%
Jul 2008 - Jun 2017 |
-15.28% |
+24.68%
Jan 1992 - Dec 2000 |
62.89%
200 out of 318 |
|
-38.83%
Jul 2008 - Jun 2017 |
-17.38% |
+21.48%
Jan 1992 - Dec 2000 |
64.15%
204 out of 318 |
|
-35.87%
Jul 2008 - Jun 2018 |
-15.46% |
+23.04%
Oct 1995 - Sep 2005 |
63.40%
194 out of 306 |
|
-36.79%
Jul 2008 - Jun 2018 |
-17.60% |
+19.87%
Oct 1995 - Sep 2005 |
64.71%
198 out of 306 |
|
-34.28%
Jul 2008 - Jun 2019 |
-16.29% |
+21.35%
Oct 1994 - Sep 2005 |
64.63%
190 out of 294 |
|
-35.23%
Jul 2008 - Jun 2019 |
-18.34% |
+18.23%
Oct 1994 - Sep 2005 |
68.03%
200 out of 294 |
|
-35.60%
Jul 2008 - Jun 2020 |
-15.69% |
+16.23%
Oct 1993 - Sep 2005 |
68.79%
194 out of 282 |
|
-36.49%
Jul 2008 - Jun 2020 |
-17.59% |
+13.21%
Oct 1993 - Sep 2005 |
69.86%
197 out of 282 |
|
-32.61%
Jun 2008 - May 2021 |
-14.81% |
+17.89%
Jul 1995 - Jun 2008 |
71.48%
193 out of 270 |
|
-33.75%
Jun 2008 - May 2021 |
-16.75% |
+14.71%
Jul 1995 - Jun 2008 |
73.70%
199 out of 270 |
|
-29.34%
Dec 2006 - Nov 2020 |
-14.59% |
+16.38%
Jan 1992 - Dec 2005 |
74.03%
191 out of 258 |
|
-30.62%
Dec 2006 - Nov 2020 |
-16.48% |
+13.42%
Jan 1992 - Dec 2005 |
75.19%
194 out of 258 |
|
-31.43%
Jun 2008 - May 2023 |
-14.60% |
+14.53%
Sep 1990 - Aug 2005 |
75.20%
185 out of 246 |
|
-32.98%
Jun 2008 - May 2023 |
-16.36% |
+11.52%
Sep 1990 - Aug 2005 |
79.67%
196 out of 246 |
|
-31.86%
May 2008 - Apr 2024 |
-14.45% |
+14.36%
Jul 1992 - Jun 2008 |
82.05%
192 out of 234 |
|
-33.47%
May 2008 - Apr 2024 |
-16.25% |
+11.26%
Jul 1992 - Jun 2008 |
84.62%
198 out of 234 |
|
-30.84%
Jul 2008 - Jun 2025 |
-13.39% |
+15.00%
Jul 1991 - Jun 2008 |
86.04%
191 out of 222 |
|
-32.41%
Jul 2008 - Jun 2025 |
-15.23% |
+11.87%
Jul 1991 - Jun 2008 |
87.84%
195 out of 222 |
|
-28.11%
Dec 2006 - Nov 2024 |
-13.06% |
+12.67%
Jul 1990 - Jun 2008 |
88.57%
186 out of 210 |
|
-29.88%
Dec 2006 - Nov 2024 |
-14.91% |
+9.49%
Jul 1990 - Jun 2008 |
91.90%
193 out of 210 |
|
-28.56%
Nov 2005 - Oct 2024 |
-12.60% |
+3.42%
Jun 1990 - May 2009 |
92.42%
183 out of 198 |
|
-30.27%
Nov 2005 - Oct 2024 |
-14.46% |
+0.73%
Jun 1990 - May 2009 |
97.98%
194 out of 198 |
|
-27.72%
Oct 2005 - Sep 2025 |
-12.23% |
+0.95%
Aug 1990 - Jul 2010 |
98.92%
184 out of 186 |
|
-29.47%
Oct 2005 - Sep 2025 |
-14.08% |
-1.60%
Aug 1990 - Jul 2010 |
100.00%
186 out of 186 |
|
-19.77%
Oct 2000 - Sep 2025 |
-10.72% |
-5.57%
Aug 1990 - Jul 2015 |
100.00%
126 out of 126 |
|
-21.75%
Oct 2000 - Sep 2025 |
-12.65% |
-7.82%
Aug 1990 - Jul 2015 |
100.00%
126 out of 126 |
|
-14.09%
Nov 1994 - Oct 2024 |
-10.99% |
-7.00%
May 1992 - Apr 2022 |
100.00%
66 out of 66 |
|
-16.20%
Nov 1994 - Oct 2024 |
-13.05% |
-9.23%
May 1992 - Apr 2022 |
100.00%
66 out of 66 |
United States Natural Gas Fund (UNG) ETF: Historical Returns

