Summit Midstream's 15min chart shows Bollinger Bands narrowing and a bearish Marubozu.

Based on the 15-minute chart for Summit Midstream, a technical indicator has been triggered that suggests a narrowing of price fluctuations, a bearish Marubozu candlestick pattern, and a decrease in stock price volatility. This indicates that sellers are exerting control over the market, and it is likely that bearish momentum will persist.