Tecogen's 15min chart shows a KDJ Golden Cross and Bullish Marubozu formation.

Based on the 15-minute chart, Tecogen's recent technical analysis has indicated a significant bullish trend, as the stock price has recently crossed above the KDJ indicator, resulting in a golden cross. This crossover has been accompanied by a bullish marubozu, a type of candlestick formation that suggests strong buying pressure. As a result, the momentum of the stock price is shifting towards the upside, and there is a potential for further price appreciation. The dominance of buyers in the market suggests that bullish momentum is likely to continue.