TAT Technologies' 15min chart shows Bollinger Bands expanding downward, bearish marubozu formation.

Based on the 15-minute chart of TAT Technologies, there has been a significant shift in market sentiment, as the Bollinger Bands have expanded downward and a bearish Marubozu pattern has emerged. This suggests that the market trend is currently being driven by sellers, who are exerting a strong influence on the market, and that a bearish momentum is likely to continue.