Cogent Communications' 15min chart shows RSI overbought and KDJ death cross.

According to the 15-minute chart for Cogent Communications, the Relative Strength Index (RSI) has reached an overbought level, and the KDJ (Keltner Channel Directional Indicator) has formed a death cross. This suggests that the stock price has risen too quickly and exceeds its fundamental support, indicating a shift in momentum towards the downside with potential for further decreases.