Hydra

The Hydra program is intended for automatic downloading of market data (instruments, candles, tick trades and order books) from various sources and for storing it locally. Data can be saved in two formats: the special binary format Hydra (BIN), which provides the maximum compression rate, or the plain text format CSV, which is useful for analyzing the data in other programs. Later, the stored information becomes available for trading strategies (for more information about strategy testing see the Backtesting section). Access to data can be obtained directly through the StorageRegistry (for more details see the Market-data storage), or through the usual export to formats such as Excel, XML or TXT (for more details see the Installation and operation section).

At the same time, Hydra can use both historical and real-time data sources (for example, connecting to OpenECry or Rithmic to obtain order books). This is possible through the extensible plug-in source model.

The plug-in model lets you develop your own sources. For details on creating and installing custom sources in Hydra, see the Creating source section.