Ham Gap calculates the Opening Gap for a stock - that is, the difference in price between the first opening trade, and the close from yesterday. By monitoring this column, you can quickly identify which stocks in your list have gapped down or up, and know which ones to monitor to find opening gap plays. This indicator should be used on an intraday chart (not daily, weekly, monthly).
This Indicator does not currently support Alerts, but that may be a feature of a future release.
There are three possible outputs - Up Gap, Down Gap, or no gap (for which the grid cell in the RadarScreen is left blank). The following RadarScreen shows an example of each. The charts below give the details. As you can see on the CEPH graph, CEPH does gap up (from 45.13 to 45.29), but the gap distance is 0.16, which is less than the Input parameter of GapSize, so the Indicator does not consider this a gap that is large enough to report. For each of the three graphs, the right-most full bar is the first bar of the session, and is compared to the second bar from the right to test for a gap opening.

HamRadar01 is not guaranteed for any particular purpose. Trading involves a high level of risk - and neither Prototech, Inc., nor Nelson Crowle (HamFon) will be liable for any losses that you incur. HamRadar01 is licensed for individual usage - you may use it on any number of machines, but only with the TradeStation Customer Number that you provide when you order. You may not reverse engineer HamRadar01, or share it with other users.
If you have any questions, please email me.