Stock Market Update

[BRIEFING.COM] The S&P 500 (-1.0%), Nasdaq Composite (-1.6%), and DJIA (-0.4%) trade in a relatively tight range, with today's retreat leaving only the DJIA in positive territory for the week. 

Weakness in the top-weighted information technology sector (-2.7%) is at the core of today's losses, though the broader market is also mostly lower. 

While Broadcom's (AVGO 358.57, -47.80, -11.76%) post-earnings drop has captured much of today's attention, Sandisk (SNDK 206.74, -34.87, -14.43%) is actually the weakest performer in the S&P 500, giving back some ground after surging 86% this quarter.

Corning (GLW 88.88, -7.10, -7.39%), which is another component of the information technology sector, rounds out the three weakest S&P 500 names.