chart
ADA trendline violations signal important action well ahead of Oracle's price bars. The 1st arrow catches the low in a pronged base just before a 30-point rally. The 2nd signals an important top one bar after it occurs. ADA then flags a major mid-April low. Finally the 4th arrow catches ORCL as it rises off a new base toward a test of its last high. Note that ADA forms ascending, descending and horizontal trendlines that track classic S/R behavior.