These alerts report when a stock moves up or down a certain percentage since the previous close.  These alerts are based on official prints, not the pre- and post-market.

These alerts were requested by money managers who often have to report to investors when a stock moves against them by too much.  These alerts are more straightforward than many of our alerts.  A money manger will typically watch several types of alerts, but will only report simple events to clients.

Typically these alerts only report once at each price level.  However, if an alert was based on a bad quote, the server will reset itself to the last valid alert.

The server does not report an alert until the stock price has changes by at least 3%.  The user can require higher standards, as described below.