Wall Street chief executives said investors should brace for an equity market drop of more than 10% in the next 12 to 24 months, and that such a correction may be a positive development. Corporate earnings are strong but \\"what's challenging are valuations,\\" said Mike Gitlin, who helps oversee about $3 trillion as president and chief executive officer of investment manager Capital Group, during a financial summit organized by the Hong Kong Monetary Authority on Tuesday. Bloomberg Anchor Kriti Gupta joins Caroline Hepker and Stephen Carroll on Bloomberg Radio to discuss.