Life Time Group's 15min chart signals RSI overbought, Bollinger bands narrowing.

Based on the provided data, the 15-minute chart for Life Time Group's stock has reached an overbought level, as indicated by the RSI indicator, and Bollinger Bands have begun to narrow, suggesting that the stock price has risen too quickly and is surpassing its fundamental value support. Furthermore, the magnitude of the stock price fluctuations has decreased.