Bearish Resistance Line Holds on Alcoa P&F Chart
StockCharts gives users the power to chart intraday P&F charts with trend lines. In this example, the 60-minute P&F Chart shows Alcoa (AA) breaking the Bullish Support Line in June (red 6) and moving to new lows. The July bounce carried the stock to the Bearish Resistance Line, but there was no breakout as AA turned back to affirm resistance.

Click this image for a live chart