NORTHSTAR CLEAN TECHNOLOGIES (ROOOF, $0.29) was one of top quarterly gainers, jumping +2 to $0.29 per share. A.I.dvisor analyzed 46 stocks in the Environmental Services Industry over the last three months, and discovered that of them (7) charted an Uptrend while of them (2) trended down. A.I.dvisor found 273 similar cases when ROOOF's price went up within three months. In out of those 273 cases, ROOOF's price went down during the following month. Based on these historical data, A.I. thinks the odds of an Uptrend reversal for ROOOF are