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A new technical indicator has been added for use in the scan language. The name of the indicator is Tick Velocity; the scan token is TV. This indicator calculates the current velocity of trading for an instrument in ticks per minute. The setup dialog for the TV indicator allows the user to specify a short term period and/or a long term period in minutes. Periods less than a minute can be expressed with fractions or decimal numbers ,e.g. enter 1 / 4 or .25 to specify a period of 15 seconds. Investor/RT calculates the number of trades that have occurred in either the short term or long term period and returns the value in ticks per second. For equities, the user can request that the result be returned in tick volume per minute. The setup dialog has three choices for the returned value: (1) short term velocity, (2) long term velocity, or (3) short/long term ratio. A ratio above 1.0 indicates the tick velocity is higher recently vs. longer term. For example, if short term period is 15 seconds and long term is 5 minutes, and the ratio calculation is selected, then the scan request TV > 2 would identify instruments whose trading velocity during the last 15 seconds was more than twice the rate it has been over the preceding 5 minutes. The default intra-day periodicity could be any number of minutes you like. This is the way Investor/RT provides for minute intervals that do not appear specifically in the Periodicity menu.