Stocks briefly nearly dropped below their opening price but for now they seem to be holding onto their first post-Brexit bounce . The S&P 500 has gained 1% to 2,019.92 at 12:29 p.m. today, while the Dow Jones Industrial Average has advanced 132.45 points, or 0.8% to 17,272.69. The Nasdaq Composite has risen 1.4% to 4,658.93. Strategas Research Partners' Chris Verrone and Todd Sohn argue that stocks were "oversold enough to bounce" but they don't think this is the end of the volatility: