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24/7 Wall St. Closing Bell — February 20, 2013: Markets Open Low, Slide Further on Fed Minutes (WIN, LOW, BIDU, BCS, GMCR, ADI, CF, DELL, HLF, AVA, CLH, DISH, LEAP, MGM, SODA, TOL, CROX, ETP, PAAS, TSLA, WLT, AUY, CG, CHK, CDE, ESV, SWY, WMT, OMX, OD

Top Analyst Upgrades and Downgrades (ACMP, ALXN, ADI, BIDU, BCS, ESRX, GMCR, LOW, MM, NTSP, RDN, SEE, SPLS, HOT, WIN)

24/7 Wall St. Closing Bell — February 19, 2013: Markets Keep Upward Momentum (GFI, APA, CSTR, WFC, BRK-A, CRMT, ESRX, NI, WIN, ADI, CF, DELL, HLF, AVI, CLH, DISH, LEAP, MGM, SODA, TOL, ODP, OMX, SPLS, NVGN, SPWR)

Week Ahead: Earnings from Dell, Smucker's and More

Dell will highlight a handful of tech company results this week. Also reporting earnings will be food giants Smucker and Campbell Soup, also Marriott and other members of the lodging and hospitality industry, and the first of a long string of results from retailers.

Week in Preview: Earnings from Tyson, Analog Devices, Deere

Among quarterly results scheduled for this holiday-shortened week, investors may be thankful for earnings results from Tyson Foods, the Arkansas-based poultry and meat producer. Analog Devices and Deere also are reporting.

Surprise Hits: Nintendo Wii wows gamers -- and the video-game industry