Sprott Junior Copper Miners ETF (COPJ) is probably on the radar for investors seeking momentum. The fund just hit a 52-week high and has moved up 139.15% from its 52-week low price of $16.22/share.Are more gains in store for this ETF? Let us take a quick look at the fund and the near-term outlook on it to get a better idea of where it might be headed.COPJ in FocusThe underlying Nasdaq Sprott Junior Copper Miners Index seeks to track the performance of mid-, small and micro-cap companies in copper-mining-rel ...