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X United States Steel Corp. XKK LEHMAN GOODYEAR XOM Exxon Mobil Corp.
XAA American Municipal Income Portfolio Inc. XKN LEHMAN FORD MOTR XOMA XOMA Ltd.
XATA XATA Corp. XKO LEHMAN ABS 7.75 CORTS 01-37FDX XOP SPDR S&P O&G EXP
XBI SPDR S&P BIOTECH XL XL Capital Ltd. XPH SPDR S&P PHARMA
XBKS Xenith Bankshars XLB Materials Select Sector SPDR Fund XPL Solitario Exploration & Royalty Corp.
XCJ Xcel Energy Inc XLBS PowerShares S&P SmallCap Materials XPO Express-1 Expedited Solutions Inc
XCO EXCO Resources Inc. XLE Energy Select Sector SPDR Fund XPP ProShares Ultra MSCI FTSE/Xinhua China 2
XCR Xcorporeal, Inc. XLES PowerShares S&P SmallCap Energy XPRT LECG Corp.
XEC Cimarex Energy Co. XLF Financial Select Sector SPDR Fund XRA Exeter Resource Corporation
XEL Xcel Energy Inc. XLFS PowerShares S&P SmallCap Financials XRAY DENTSPLY International Inc.
XES SPDR S&P O&G EQU XLG RYDEX RUSSELL TOP 50 ETF XRIT X-Rite, Incorporated
XETA XETA Technologies Inc. XLI Industrial Select Sector SPDR Fund XRM Xerium Technologies Inc.
XFB LEHMAN ABS 8.125 CORTS 02-9 XLIS PowerShares S&P SmallCap Industrials XRO Claymore Zacks Sector Rotation
XFD LEHMAN AIG DB BK XLK Technology Select Sector SPDR Fund XRT SPDR S&P RETAIL
XFH LEHMAN MOTOROLA XLKS PowerShares S&P SmallCap Information Tec XRTX Xyratex Ltd.
XFJ LEHMAN MOT A-1 XLNX Xilinx Inc. XRU CurrencyShares Russian Ruble Trust
XFL LEHMAN VERIZON XLP Consumer Staples Select Sector SPDR Fund XRX Xerox Corp.
XFN Xfone, Inc. XLPS PowerShares S&P SmallCap Consumer Staple XSD SPDR S&P SEMICND
XFP LEHMAN AM GENERL XLU Utilities Select Sector SPDR Fund XSEL Xinhua Sports & Entertainment Limited
XFR LEHMAN BRSTL MYR XLUS PowerShares S&P SmallCap Utilities XTEX Crosstex Energy LP
XGC Claymore Great Compans Lrg Cp Grwth Indx XLV Health Care Select Sector SPDR Fund XTNT XTENT, Inc.
XHB SPDR S&P HM BLDR XLVS PowerShares S&P SmallCap Health Care XTO XTO Energy Inc.
XIDE Exide Technologies XLY Consumer Discretionary Select Sector SPD XTXI Crosstex Energy Inc.
XIN Xinyuan Real Estate Company Ltd. XLYS PowerShares S&P SmallCap Consumer Discre XVF LEHMAN ABS 8.0 CORTS 03-6 FORD
XING Qiao Xing Universal Telephone Inc. XME SPDR S&P MTL&MNG XVG LEHMAN ABS 6.05 CORTS 03-7 BA
XJT ExpressJet Holdings Inc. XNN Xenonics Holdings, Inc. XWES World Energy Sol
XKE LEHMAN ABS 7.75 CORTS 01-31TOY XNPT Xenoport, Inc. XXIA Ixia