Monday Sector Laggards: Energy, Materials

The worst performing sector as of midday Monday is the Energy sector, showing a 2.4% loss. Within the sector, Chesapeake Energy Corp. (NYSE: CHK) and Diamond Offshore Drilling, Inc. (NYSE: DO) are two of the day's laggards, showing a loss of 8.6% and 6.8%, respectively. Among energy ETFs, one ETF following the sector is the Energy Select Sector SPDR ETF (AMEX: XLE), which is down 1.8% on the day, and up 7.07% year-to-date. Chesapeake Energy Corp., meanwhile, is down 6.78% year-to-date, and Diamo...