Serve Robotics' 15min chart: MACD Death Cross, Bollinger Bands Narrowing, KDJ Death Cross.

According to the 15-minute chart for Serve Robotics, the MACD indicator has crossed below the signal line, signaling a potential downtrend in the stock price. The Bollinger Bands are narrowing, indicating a decrease in the magnitude of price fluctuations. Additionally, the KDJ indicator has crossed below the signal line, suggesting that the momentum of the stock price is shifting towards the downside, with a potential for further decrease.