When I install MT5, and open a demo account, without using a broker, I can see charts with incoming ticks and historic data of many Fx pairs.
Where these chart/price data are gathered from? the default metaquote demo account has a source for ticks, and prices are totally comparable and highly correlated to major reliable tick sources and/or other brokers.
please take note that these are not the answers to my question, though all are valid points, correct info, and useful facts:
- Metaquote is not a broker
- Metaquote quotes and tick history are not reliable for backtesting experts/indicators
- These charts/prices are not guaranteed to be live/accurate
- Different brokers use different liquidity providers as their quotes source, thus there could be subtle differences in prices of different brokers
Is there a way to test reliability/precision of this historic data ?
because apparently, visually, it seems highly correlated to price history from major brokers.
since I'm only concerned with H1 bars from history of 2020 to 2024, can I simply backtest on this history or I really need to download from brokers/tick-data-sellers ?

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When I install MT5, and open a demo account, without using a broker, I can see charts with incoming ticks and historic data of many Fx pairs.
Where these chart/price data are gathered from? the default metaquote demo account has a source for ticks, and prices are totally comparable and highly correlated to major reliable tick sources and/or other brokers.
please take note that these are not the answers to my question, though all are valid points, correct info, and useful facts: