The Price Alert feature within Alpha Alerts offers immediate notifications when stocks cross the 5% or 10% threshold on both the positive or negative side. Users have the flexibility to customise the frequency of these notifications to 15 minutes, 30 minutes, hourly or daily. 

You can set alerts for stocks that cross previous highs and lows on a weekly, yearly, or even a decade basis. 

The feature also allows setting notifications for when a stock's price approaches its 52-week high or low. You can also set the frequency of alerts to 15 minutes, 30 minutes, hourly, or daily. You will receive alert notification when the stocks crosses highs and lows.