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Video Answer |
The Alarm Preferences (Special) dialog box is an archaic
feature of Investor/RT that was developed before Investor/RT had the far
more general RTL language for specifying trading signals and scans for
exceptional conditions.
The quotepage has a column named Avg Volume. This value is calculated
automatically each day as the 20 period average daily trading volume.
For I/RT Professional users, if 20 days average volume if not what you
want you can override this quotepage value by running a scheduled scan
each day after the close with the formula:
SET(AVGVOL, VMA)
Where VMA is setup as the N period average of volume that you prefer.
The X times average in the dialog you mention is based on this Avg
Volume data value for each instrument.
As for Price Move, the move is calculated as the difference between the
previous close and the current price. You can check for moves up by X or
moves down by Y or both conditions. These alert conditions, if
activated, are tested tick by tick.
There are also “Gap” tests that are done only once when the open is set
for an instrument. The gap is defined as the difference between today’s
open price and the previous close. You can test for gap up or gap down
conditions.
This alert feature is useful for some but has largely been superseded by
the RTL language for our Investor/RT Professional customers. The Alarm
Preferences (Special) dialog box features are present in all editions of
Investor/RT whether RTL is available or not.
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