The leverage function in forex trading allows traders to place orders using a smaller margin requirement. The higher the leverage used, the smaller the margin requirement needed to open a lot of orders. On the other hand, it can increase trading risk because using a large lot size will cause the margin level to narrow quickly due to price volatility, it is possible to immediately face an account margin call and there the broker will automatically liquidate orders if the margin call level has been reached.
At FXOpen, specifically for Ticktrader accounts they offer leverage up to 1:1000, while the maximum for ECN or STP account types is 1:500. In a Ticktrader account you can trade CFDs on crypto, indices, stocks, commodities, and metals through one trading account