Below is a list of forex brokers, offering 500:1 leverage. Now you can trade with positions 500 times larger than the funds in your forex account. That said, here is a comprehensive list of the pros and cons of trading with high leverage forex brokers. 10 Best Forex Brokers with Highest Leverage. Broker, Info 10 Jan 2012 Understanding the pros and cons of leverage is vital to proper risk We use a range of cookies to give you the best possible browsing experience. trader and calculate their effective leverage in their forex account.