In general, I think we all judge credibility based on what people say compared to what we (individually) believe to be intelligent. DD, you're very good about pointing out lazy, moronic, ignorant, etc. errors in corporate or analysts' reports of all kinds. I'm sure these issues help you filter, in the future, who you spend your limited time reading.
Specifically, UNG suffers from the same problem that plagues USO.
Trading only the near month contract makes the operations behind this fund vulnerable to gaming.
The image in the link below shows the performance over a three year period of UNG, the continuous front month NG contract (NG1), and Devon Energy (DVN, just an example).
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