ard downgrades HRS, Scotiabank initiates KR (sp), Pac Crest upgrades ONNN Reporting Pre-Open: AMT, ANR, APA, ARG, BEAM, CAH, CI, CNP, CVC, DNR, EP, GOLD, NRG, PGN, PNW, PWR, SCG, SEE, SLE, SNI, SRE, TDC, VIAB, WPX, XYL, AAWW, ACIW, ACM, ACOR, ANSS, ARQL, ATK, ATRC, AVD, AVEO, AYR, BBG, BBW, BCE, BKCC, BT