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 426 months (from May 1990 to October 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 Oct 31, 2025, the annualized return of the previous 10 years has been -21.90%.
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 |
56.14%
233 out of 415 |
|
-78.66%
Jun 2022 - May 2023 |
-11.67% |
+310.88%
Jan 2000 - Dec 2000 |
58.80%
244 out of 415 |
|
-67.50%
Sep 2022 - Aug 2024 |
-9.06% |
+124.18%
Jan 1999 - Dec 2000 |
60.55%
244 out of 403 |
|
-68.50%
Sep 2022 - Aug 2024 |
-11.84% |
+117.53%
Jan 1999 - Dec 2000 |
64.02%
258 out of 403 |
|
-55.60%
Jul 2008 - Jun 2011 |
-8.59% |
+62.83%
Jan 1998 - Dec 2000 |
59.85%
234 out of 391 |
|
-56.09%
Jul 2008 - Jun 2011 |
-10.51% |
+58.75%
Jan 1998 - Dec 2000 |
64.45%
252 out of 391 |
|
-55.93%
Jun 2008 - May 2012 |
-11.41% |
+57.82%
Oct 2001 - Sep 2005 |
59.63%
226 out of 379 |
|
-56.59%
Jun 2008 - May 2012 |
-13.78% |
+53.54%
Oct 2001 - Sep 2005 |
62.80%
238 out of 379 |
|
-48.11%
Jul 2008 - Jun 2013 |
-13.82% |
+30.14%
Jan 1996 - Dec 2000 |
58.86%
216 out of 367 |
|
-48.80%
Jul 2008 - Jun 2013 |
-14.91% |
+26.89%
Jan 1996 - Dec 2000 |
62.40%
229 out of 367 |
|
-39.54%
Jul 2008 - Jun 2014 |
-13.04% |
+34.03%
Jan 1995 - Dec 2000 |
60.28%
214 out of 355 |
|
-40.41%
Jul 2008 - Jun 2014 |
-15.31% |
+30.70%
Jan 1995 - Dec 2000 |
64.23%
228 out of 355 |
|
-40.33%
Jul 2008 - Jun 2015 |
-15.78% |
+30.79%
Sep 1998 - Aug 2005 |
58.89%
202 out of 343 |
|
-41.09%
Jul 2008 - Jun 2015 |
-17.21% |
+27.43%
Sep 1998 - Aug 2005 |
61.22%
210 out of 343 |
|
-40.61%
Jun 2008 - May 2016 |
-16.80% |
+24.56%
Jan 1993 - Dec 2000 |
62.84%
208 out of 331 |
|
-41.40%
Jun 2008 - May 2016 |
-18.90% |
+21.41%
Jan 1993 - Dec 2000 |
64.95%
215 out of 331 |
|
-38.04%
Jul 2008 - Jun 2017 |
-15.28% |
+24.68%
Jan 1992 - Dec 2000 |
63.01%
201 out of 319 |
|
-38.83%
Jul 2008 - Jun 2017 |
-17.38% |
+21.48%
Jan 1992 - Dec 2000 |
64.26%
205 out of 319 |
|
-35.87%
Jul 2008 - Jun 2018 |
-15.46% |
+23.04%
Oct 1995 - Sep 2005 |
63.52%
195 out of 307 |
|
-36.79%
Jul 2008 - Jun 2018 |
-17.60% |
+19.87%
Oct 1995 - Sep 2005 |
64.82%
199 out of 307 |
|
-34.28%
Jul 2008 - Jun 2019 |
-16.29% |
+21.35%
Oct 1994 - Sep 2005 |
64.75%
191 out of 295 |
|
-35.23%
Jul 2008 - Jun 2019 |
-18.34% |
+18.23%
Oct 1994 - Sep 2005 |
68.14%
201 out of 295 |
|
-35.60%
Jul 2008 - Jun 2020 |
-15.69% |
+16.23%
Oct 1993 - Sep 2005 |
68.90%
195 out of 283 |
|
-36.49%
Jul 2008 - Jun 2020 |
-17.59% |
+13.21%
Oct 1993 - Sep 2005 |
69.96%
198 out of 283 |
|
-32.61%
Jun 2008 - May 2021 |
-14.81% |
+17.89%
Jul 1995 - Jun 2008 |
71.59%
194 out of 271 |
|
-33.75%
Jun 2008 - May 2021 |
-16.75% |
+14.71%
Jul 1995 - Jun 2008 |
73.80%
200 out of 271 |
|
-29.34%
Dec 2006 - Nov 2020 |
-14.59% |
+16.38%
Jan 1992 - Dec 2005 |
74.13%
192 out of 259 |
|
-30.62%
Dec 2006 - Nov 2020 |
-16.48% |
+13.42%
Jan 1992 - Dec 2005 |
75.29%
195 out of 259 |
|
-31.43%
Jun 2008 - May 2023 |
-14.60% |
+14.53%
Sep 1990 - Aug 2005 |
75.30%
186 out of 247 |
|
-32.98%
Jun 2008 - May 2023 |
-16.36% |
+11.52%
Sep 1990 - Aug 2005 |
79.76%
197 out of 247 |
|
-31.86%
May 2008 - Apr 2024 |
-14.45% |
+14.36%
Jul 1992 - Jun 2008 |
82.13%
193 out of 235 |
|
-33.47%
May 2008 - Apr 2024 |
-16.25% |
+11.26%
Jul 1992 - Jun 2008 |
84.68%
199 out of 235 |
|
-30.84%
Jul 2008 - Jun 2025 |
-13.39% |
+15.00%
Jul 1991 - Jun 2008 |
86.10%
192 out of 223 |
|
-32.41%
Jul 2008 - Jun 2025 |
-15.23% |
+11.87%
Jul 1991 - Jun 2008 |
87.89%
196 out of 223 |
|
-28.21%
Nov 2007 - Oct 2025 |
-13.06% |
+12.67%
Jul 1990 - Jun 2008 |
88.63%
187 out of 211 |
|
-29.94%
Nov 2007 - Oct 2025 |
-14.91% |
+9.49%
Jul 1990 - Jun 2008 |
91.94%
194 out of 211 |
|
-28.56%
Nov 2005 - Oct 2024 |
-12.60% |
+3.42%
Jun 1990 - May 2009 |
92.46%
184 out of 199 |
|
-30.27%
Nov 2005 - Oct 2024 |
-14.46% |
+0.73%
Jun 1990 - May 2009 |
97.99%
195 out of 199 |
|
-27.72%
Oct 2005 - Sep 2025 |
-12.23% |
+0.95%
Aug 1990 - Jul 2010 |
98.93%
185 out of 187 |
|
-29.47%
Oct 2005 - Sep 2025 |
-14.08% |
-1.60%
Aug 1990 - Jul 2010 |
100.00%
187 out of 187 |
|
-19.77%
Oct 2000 - Sep 2025 |
-10.72% |
-5.57%
Aug 1990 - Jul 2015 |
100.00%
127 out of 127 |
|
-21.75%
Oct 2000 - Sep 2025 |
-12.65% |
-7.82%
Aug 1990 - Jul 2015 |
100.00%
127 out of 127 |
|
-14.09%
Nov 1994 - Oct 2024 |
-10.99% |
-7.00%
May 1992 - Apr 2022 |
100.00%
67 out of 67 |
|
-16.20%
Nov 1994 - Oct 2024 |
-13.05% |
-9.23%
May 1992 - Apr 2022 |
100.00%
67 out of 67 |
United States Natural Gas Fund (UNG) ETF: Historical Returns

