Wall St Week Ahead-Expect volume spike on sector reshuffle, quadruple witching

An overhaul of Wall Street's technology and media sectors will coincide with the quarterly expiration of futures and options, potentially bringing a burst of volume and volatility to trading on Friday and the days that follow. After the close on Friday, S&P Dow Jones Indices will reorganize several of its sectors and relaunch its telecommunications index as a new communication services sector. The reorga