CME raises Comex 5000 silver futures (SI) margins by 12.5% 24-Jul-20 06:21 am Analysis Anirudh Sethi Given the lift in volatility this is no surprise.SI margins +12.5% to $9,000 per contractprior $8,000for JulyFor oil, Nymex CL maintenance margins lowered to $6,200 (from 6,800) for Sept.