However, raw tick data is unwieldy. Dukascopy’s true genius is its pre-processed, multi-resolution storage system. The data is organized into binary files, each typically containing one minute’s worth of tick data. Using a custom lossless compression algorithm, the bank allows users to reconstruct any timeframe: 1-minute, 5-minute, 1-hour, daily, and even irregular custom bars (e.g., tick bars, range bars, volume bars). This architecture means a user can download a single minute file and, from it, algorithmically generate any higher timeframe. The data’s inherent OHLCVT (Open, High, Low, Close, Volume, Tick count) structure ensures that key statistical properties of price movement are preserved across aggregations.
: Access data for over 1,600 instruments , including Forex (majors and minors), Commodities, Indices, Stocks, Bonds, ETFs, and Cryptocurrencies. dukascopy+historical+data
This is , not the "ultimate" market price (which doesn’t exist). For very high-frequency strategies (holding < 1 second), your results may not replicate on other brokers or exchanges. Title: The "Holy Grail" for Algo Traders