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 429 months (from May 1990 to January 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.
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 Jan 31, 2026, the annualized return of the previous 10 years has been -18.81%.
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 |
55.98%
234 out of 418 |
|
-78.66%
Jun 2022 - May 2023 |
-11.67% |
+310.88%
Jan 2000 - Dec 2000 |
58.85%
246 out of 418 |
|
-67.50%
Sep 2022 - Aug 2024 |
-9.11% |
+124.18%
Jan 1999 - Dec 2000 |
60.84%
247 out of 406 |
|
-68.50%
Sep 2022 - Aug 2024 |
-11.93% |
+117.53%
Jan 1999 - Dec 2000 |
64.29%
261 out of 406 |
|
-55.60%
Jul 2008 - Jun 2011 |
-9.44% |
+62.83%
Jan 1998 - Dec 2000 |
60.15%
237 out of 394 |
|
-56.09%
Jul 2008 - Jun 2011 |
-11.41% |
+58.75%
Jan 1998 - Dec 2000 |
64.72%
255 out of 394 |
|
-55.93%
Jun 2008 - May 2012 |
-13.08% |
+57.82%
Oct 2001 - Sep 2005 |
59.95%
229 out of 382 |
|
-56.59%
Jun 2008 - May 2012 |
-15.37% |
+53.54%
Oct 2001 - Sep 2005 |
63.09%
241 out of 382 |
|
-48.11%
Jul 2008 - Jun 2013 |
-14.19% |
+30.14%
Jan 1996 - Dec 2000 |
59.19%
219 out of 370 |
|
-48.80%
Jul 2008 - Jun 2013 |
-16.22% |
+26.89%
Jan 1996 - Dec 2000 |
62.70%
232 out of 370 |
|
-39.54%
Jul 2008 - Jun 2014 |
-14.99% |
+34.03%
Jan 1995 - Dec 2000 |
60.61%
217 out of 358 |
|
-40.41%
Jul 2008 - Jun 2014 |
-17.10% |
+30.70%
Jan 1995 - Dec 2000 |
64.53%
231 out of 358 |
|
-40.33%
Jul 2008 - Jun 2015 |
-15.98% |
+30.79%
Sep 1998 - Aug 2005 |
59.25%
205 out of 346 |
|
-41.09%
Jul 2008 - Jun 2015 |
-18.00% |
+27.43%
Sep 1998 - Aug 2005 |
61.56%
213 out of 346 |
|
-40.61%
Jun 2008 - May 2016 |
-17.21% |
+24.56%
Jan 1993 - Dec 2000 |
63.17%
211 out of 334 |
|
-41.40%
Jun 2008 - May 2016 |
-19.18% |
+21.41%
Jan 1993 - Dec 2000 |
65.27%
218 out of 334 |
|
-38.04%
Jul 2008 - Jun 2017 |
-15.79% |
+24.68%
Jan 1992 - Dec 2000 |
63.35%
204 out of 322 |
|
-38.83%
Jul 2008 - Jun 2017 |
-17.46% |
+21.48%
Jan 1992 - Dec 2000 |
64.60%
208 out of 322 |
|
-35.87%
Jul 2008 - Jun 2018 |
-17.10% |
+23.04%
Oct 1995 - Sep 2005 |
63.87%
198 out of 310 |
|
-36.79%
Jul 2008 - Jun 2018 |
-19.07% |
+19.87%
Oct 1995 - Sep 2005 |
65.16%
202 out of 310 |
|
-34.28%
Jul 2008 - Jun 2019 |
-16.95% |
+21.35%
Oct 1994 - Sep 2005 |
65.10%
194 out of 298 |
|
-35.23%
Jul 2008 - Jun 2019 |
-18.85% |
+18.23%
Oct 1994 - Sep 2005 |
68.46%
204 out of 298 |
|
-35.60%
Jul 2008 - Jun 2020 |
-15.91% |
+16.23%
Oct 1993 - Sep 2005 |
69.23%
198 out of 286 |
|
-36.49%
Jul 2008 - Jun 2020 |
-17.90% |
+13.21%
Oct 1993 - Sep 2005 |
70.28%
201 out of 286 |
|
-32.61%
Jun 2008 - May 2021 |
-15.66% |
+17.89%
Jul 1995 - Jun 2008 |
71.90%
197 out of 274 |
|
-33.75%
Jun 2008 - May 2021 |
-17.53% |
+14.71%
Jul 1995 - Jun 2008 |
74.09%
203 out of 274 |
|
-29.34%
Dec 2006 - Nov 2020 |
-15.04% |
+16.38%
Jan 1992 - Dec 2005 |
74.43%
195 out of 262 |
|
-30.62%
Dec 2006 - Nov 2020 |
-16.81% |
+13.42%
Jan 1992 - Dec 2005 |
75.57%
198 out of 262 |
|
-31.43%
Jun 2008 - May 2023 |
-14.88% |
+14.53%
Sep 1990 - Aug 2005 |
75.60%
189 out of 250 |
|
-32.98%
Jun 2008 - May 2023 |
-16.69% |
+11.52%
Sep 1990 - Aug 2005 |
80.00%
200 out of 250 |
|
-31.86%
May 2008 - Apr 2024 |
-14.91% |
+14.36%
Jul 1992 - Jun 2008 |
82.35%
196 out of 238 |
|
-33.47%
May 2008 - Apr 2024 |
-16.67% |
+11.26%
Jul 1992 - Jun 2008 |
84.87%
202 out of 238 |
|
-30.84%
Jul 2008 - Jun 2025 |
-13.85% |
+15.00%
Jul 1991 - Jun 2008 |
86.28%
195 out of 226 |
|
-32.41%
Jul 2008 - Jun 2025 |
-15.68% |
+11.87%
Jul 1991 - Jun 2008 |
88.05%
199 out of 226 |
|
-28.21%
Nov 2007 - Oct 2025 |
-13.53% |
+12.67%
Jul 1990 - Jun 2008 |
88.79%
190 out of 214 |
|
-29.94%
Nov 2007 - Oct 2025 |
-15.36% |
+9.49%
Jul 1990 - Jun 2008 |
92.06%
197 out of 214 |
|
-28.56%
Nov 2005 - Oct 2024 |
-12.78% |
+3.42%
Jun 1990 - May 2009 |
92.57%
187 out of 202 |
|
-30.27%
Nov 2005 - Oct 2024 |
-14.64% |
+0.73%
Jun 1990 - May 2009 |
98.02%
198 out of 202 |
|
-27.72%
Oct 2005 - Sep 2025 |
-12.39% |
+0.95%
Aug 1990 - Jul 2010 |
98.95%
188 out of 190 |
|
-29.47%
Oct 2005 - Sep 2025 |
-14.26% |
-1.60%
Aug 1990 - Jul 2010 |
100.00%
190 out of 190 |
|
-21.97%
Jan 2001 - Dec 2025 |
-10.81% |
-5.57%
Aug 1990 - Jul 2015 |
100.00%
130 out of 130 |
|
-23.90%
Jan 2001 - Dec 2025 |
-12.96% |
-7.82%
Aug 1990 - Jul 2015 |
100.00%
130 out of 130 |
|
-15.03%
Jan 1996 - Dec 2025 |
-11.82% |
-7.00%
May 1992 - Apr 2022 |
100.00%
70 out of 70 |
|
-17.13%
Jan 1996 - Dec 2025 |
-14.00% |
-9.23%
May 1992 - Apr 2022 |
100.00%
70 out of 70 |
United States Natural Gas Fund (UNG) ETF: Historical Returns

