Below are the maximum open lots across all pairs that a trader can have at any given time with 10:1 leverage. $50K - 5 lots with risk $100K - 10 lots with risk $250K - 25 lots with risk $500K - 50 lots with risk With 20:1 leverage the maximum allowed lots with risk is as follows: $50K - 10 lots with risk $100K - 20 lots with risk $250K - 50 lots with risk $500K - 100lots with risk Once your trade is in profit and you've moved your stop loss to either breakeven or in profit, the trade is no longer considered to be running with "open risk" and you can therefore open additional trades with additional lots. For example, on a $500,000 account, if you take a trade with 50 lots, once your stop loss is at breakeven or in profit, you can execute a second trade with an additional 50 lots, for a total of 100 lots. So on and so forth. If you execute trades that exceed that maximum allotted lots, our system will automatically liquidate all trades that currently carry risk. Do note, margin and leverage requirements still apply. So, even though these are the maximum lots that can be traded, it is possible based on the leverage of the account that you may not be able to trade up to the maximum depending on the specific trade.