Heikin Ashi4MetaStock is a software program that allows MetastockTM users to create and update Heikin Ashi data files in MetaStock. The program creates data files with modified open, high, low, close values and according to the computation rules for Heikin-ashi trend technique. Once these data files are created/updated, they can be displayed as Heikin Ashi trend charts in MetastockTM using the candlestick representation. The directory with the original data files will not be modified. The program creates a new directory containing all the securities of the original directory and modifies the open, high, low and close values. As soon as you add new records to the original data directory Heikin Ashi4MetaStock will recognize the changes and will automatically update the data files in directory containing the Heikin Ashi values. You can update the original MetaStock directory with any program you want. Heikin Ashi4MetaStock automatically detects the changes and will update the MetaStock directory containing the Heikin Ashi values. So you always have two consistent MetaStock directories although you have to service only one MetaStock directory. One directory contains the original the OHLC values, the second one contains the modified OHLC values.