Nu Holdings' 15min chart shows MACD Death Cross and KDJ Death Cross.

According to the 15-minute chart for Nu Holdings, a significant technical indicator has been triggered. The MACD (Moving Average Convergence Divergence) has crossed below the signal line, signaling a potential decline in the stock price. Furthermore, the KDJ (Stochastic Oscillator) has also crossed below the 20 and 30 levels, indicating a shift in momentum towards the downside and a potential decrease in the stock price. This suggests that the stock may continue to decline and investors should be cautious.