For investors seeking momentum, iShares Morningstar Mid-Cap ETF JKG is probably on radar. The fund just hit a 52-week high and is up 83% from its 52-week low price of $126.19 per share.But are more gains in store for this ETF? Let’s take a quick look at the fund and the near-term outlook on it to get a better idea on where it might be headed:JKG in FocusThis fund offers exposure to U.S. mid-cap stocks with key holdings in industrials, consumer discretionary, information technology and real estate. The fund charges 25 basis points in annual fees (see: all the Mid Cap Blend ETFs here).Why the Move?The mid-cap space of the broad U.S. stock market has been an area to watch lately given the soaring stock market. While vaccine optimism and excessive money flows are driving investors’ sentiment, surging COVID-19 cases are weighing on stocks. In this scenario, mid-cap funds offer the best of both worlds — growth and stability — when compared to the small-cap and large-cap counterparts.More Gains Ahead?Currently, JKG has a Zacks ETF Rank #3 (Hold) with a Medium risk outlook. Therefore, it is hard to get a handle on its future returns one way or the other. However, many of the segments that make up this ETF have a strong Zacks Industry Rank. So, there is definitely some promise for those who want to ride this surging ETF a little further.Want key ETF info delivered straight to your inbox?Zacks’ free Fund Newsletter will brief you on top news and analysis, as well as top-performing ETFs, each week. Get it free >>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report iShares Morningstar MidCap ETF (JKG): ETF Research Reports To read this article on Zacks.com click here.