Based on the 2013 publication of the Journal of Technical Analysis, first article, "Analyzing Gaps for Profitable Trading Strategies," I am noticing that you could have used these following criteria to create 5 profitable trades this year on DRV.
Look for: A larger green candles, red candle on day before Green candle crosses the 10-day moving average Above average volume
DRV is a bearish, leveraged ETF designed for shorting the U.S. Real Estate market. This might continue to yeild great trades through 2023.