We've studied the performance of stocks in April to see which sectors tend to shine. Among the best exchange-traded funds to own in April over the past 10 years has been the VanEck Vectors Gaming ETF (BJK), notes Andrea Kramer, contributing editor to Schaeffer's Investment Research.

The exchange-traded funds boasts casino stocks like Las Vegas Sands (LVS) and Wynn Resorts (WYNN) among its top holdings.

Of all the ETFs we track, BJK has generated the biggest average April return of 5.3%, according to data from Schaeffer's Senior Quantitative Analyst Rocky White. Further, it's one of the few funds that have ended April in the black at least 80% of the time over the past decade.

The shares of BJK have added nearly 10% so far in 2019, but recently ran into a wall in the $38 region. This level has acted as a roadblock for the ETF since October, and also represents a 38.2% Fibonacci retracement of the fund's fall from its May highs to its Dec. 26 lows.

Further, the formerly supportive 160-day moving average has descended into the area, and contained BJK's rally attempt in late February. At last check, the ETF was trading around $36.25. Another 5.3% bump from current levels would place the shares around $38.17, right around its February highs.

bjk-etf-chart-march-27

Although absolute options volume tends to run light on the gaming ETF, traders have been betting bullishly. At the International Securities Exchange (ISE), Chicago Board Options Exchange (CBOE), and NASDAQ OMX PHLX (PHLX), BJK's 10-day call/put volume ratio stands at 5.50, indicating buyers have picked up more than five calls for every put on the fund in the past two weeks.

Short-term options on the ETF are attractively priced, too. Its Schaeffer's Volatility Index (SVI) of 16% is higher than just 28% of all other readings from the past year, suggesting near-term BJK options are underpricing volatility at the moment.

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