optionMONSTER submits:
By Bryan McCormick
Last Friday we posted a "tree map" of the Technology SPDR (XLK) exchange-traded fund and noted that, with a weighting of more than 20 percent in the S&P 500, the SPX would have a hard time getting anywhere on the upside without its participation. In one week, we have seen a number of significant gains in the sector that I think will be immediately apparent visually.