Modernization of the popular Equity indicator. The author of the original version: Igor Korepin. The necessity of the modernization is that the original indicator does not always work correctly with some instruments. For example, some brokers use the tickers with suffixes, prefixes. Also some CFD contracts and futures were considered incorrectly. This version uses a new function of contract value evaluation, which allows to work with any instrument. It retains the original concept and ideology of the indicator.

With the default settings the indicator displays two lines: the line of the balance sheet and the line of the equity. Additionally, it is possible to display the level of the used margin (as a histogram) and free equity (additional line) throughout the trading history, which allows to assess the aggressiveness of trade. The trading statistics (can be displayed in any corner of the chart): yields for month, year or the entire period of trading, the maximum drawdown (absolute and percentage), and also the calculation of the profit factor and the recovery factor.

The indicator parameters:

Only_Trade — take into account only the trade operations, excluding the balance ones (replenishment, withdrawal,correction)

Only_Magics — take into account only the orders with the specified magic numbers (enumeration with any delimiter)

Only_Symbols — take into account only the orders with the specified ticker (enumeration with any delimiter)

Only_Comment — take into account only the orders with the specified substring in the comment field

Only_Current — take into account only the orders on the current symbol of the chart

Only_Buys — take into account only the buy orders

Only_Sells — take into account only the sell orders

Show_Balance — display balance line

Show_Margin — display used margin histogram

Show_Free — display free equity line

Show_Zero — display zero level line

Show_Info — display statistics (profitability, drawdown, profit factor and recovery factor)

Alert_Drawdown — signal level of drawdown percentage (0 - disable monitoring)

Max_Drawdown — maximum allowed drawdown level in percent

Current_Day — monitoring of drawdown only for the current day

Begin_Monitoring — drawdown monitoring start time (monitoring period start)

File_Write — option to write the data to a text file

(MQL4\Files folder, file name corresponds to the account number)

Draw_Begin — chart plotting start time (orders are not considered before this time)

Report_Period — profitability calculation period: month/year/total

Text_Corner — corner of the screen to display the statistics

FX_prefix — prefix for currency pairs (required for some brokers)

FX_postfix — suffix for currency pairs (required for some brokers)

Operation features:

At the first start of the indicator the chart may be distorted. This means that the history of symbols is not synchronized for that moment. In this case it is necessary to switch the timeframes "back and forth" several times or download the history forcibly for all symbols by opening the corresponding charts. Chart auto-update when switching accounts is implemented in the new version of the indicator.

For the correct operation of the indicator, the trade history in the "History Center" must be fully downloaded.

Original code: https://www.mql5.com/ru/code/13242