Hewlett Packard Pref C's 15-min chart shows RSI oversold and KDJ golden cross.

According to the 15-minute chart for Hewlett Packard Pref C, there are several indicators that suggest a potential turnaround in the stock's performance. Firstly, the Relative Strength Index (RSI) has reached oversold levels, indicating that the stock price has dropped rapidly and may be due for a rebound. Additionally, the KDJ (Keltner Channel Directional Indicator) has triggered a golden cross, which is a bullish signal that suggests the momentum of the stock price is shifting towards the upside and has the potential to continue increasing.