As investors grapple with the market meltdown, trading desks at the country’s largest banks are busy making markets and making money. The market volatility is pushing up trading revenues 15% – 25% at big banks. Don Kaufman, Chief Market Strategist at TheoTrade, has extensive background in market-making, brokerage, and trading. In this NTD Business News segment, Don explains how the banks are profiting off market volatility. See the full segment above.