Mar 21, 2020 · The Mexican Peso got the worst of it, with the NFA mandating a 10% deposit in their leveraged bets with the currency. The NFA explained that it had taken the recent market volatility in the currency markets, as well as a similar margin increase that both the CME and ICE have implemented. Learn About Futures Margin - The Balance Learn about futures margin in futures trading, including initial margin, maintenance levels, margin call, and margin changes. The exchanges adjust their margin requirements based on market conditions. Currency Futures Trading and Markets, Margins, Settlement, and Profits.