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How to speed up watchlist and screener plug-ins when working with intraday data

Updated on 2011-05-20 05:26:37

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When the watchlist or screen tool analyzes your stocks or securities, most of the time is spent in calculating the formula and indicators. The higher the number of quotes/bars, the longer the analysis will take. The idea is to decrease the number of bars to load for each stock or security.


- Select "Accounts" then "Intraday Settings".
- In the "Watchlist/Screener" panel, decrease the number of days worth of data to load.

Usually, it is not necessary to set a high number of days. It all depends on the time frames and the formulas you are using.

Using 1 hour timeframe and the following formula: filter = close > sma(30);

The simple moving average of the above formula requires 31 bars; this means that it needs data for at least the last 31 hours. In this case, a value of two in day’s field seems to be the right choice. However, because you are probably using several different formulas, a higher value is preferable (default value is 20).

If you are only using periods lower than one hour then it is safe to decrease this value a little bit (maybe to 15 or 10).

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