Yeah, there are plenty of ops to trade either side on intraday, every other day, weekly, monthly or seasonally. The indice that DGAZ and UGAZ are intrinsically and fundamentally tied to is a representation of its subjective futures market for NG, and charting that, I believe is the best way to find points of entry and exit for these etf's. Not always do they follow $nathas or other similar indices, etc., but everyone has their own method.
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