| Code | Name | High | Low | Close | Volume | Change | |
|---|
| X | United States Steel Corp. | 18.05 | 17.50 | 17.70 | 5,300,400 | 0.16 |  | 0.90 |   |
| XAA | American Muni Income Portfolio | 14.60 | 14.46 | 14.56 | 17,900 | 0.00 |  | 0.00 | |
| XCJ | Xcel Energy Inc. | 25.31 | 25.30 | 25.31 | 15,500 | 0.01 |  | 0.04 | |
| XCO | Exco Resources Nl | 7.930 | 7.740 | 7.740 | 1,490,300 | 0.080 | | 1.02 | |
| XEC | Cimarex Energy Co | 73.06 | 70.86 | 71.16 | 802,800 | 1.22 | | 1.69 | |
| XEL | Xcel Energy Inc. | 29.36 | 28.55 | 28.55 | 4,023,700 | 0.81 | | 2.76 | |
| XFP | Lehman Abs Corp. | 24.55 | 24.40 | 24.46 | 10,300 | 0.06 | | 0.25 | |
| XFR | Lehman Abs Corp. | 27.98 | 26.76 | 27.84 | 3,100 | 0.86 | | 3.19 | |
| XIN | Xinyuan Real Estate Co Ltd | 4.660 | 4.520 | 4.550 | 224,200 | 0.030 | | 0.66 | |
| XKE | Lehman Abs Corp. | 9.170 | 9.000 | 9.150 | 900 | 0.040 | | 0.44 | |
| XKO | Lehman Abs Corp. | 11.14 | 10.87 | 11.14 | 1,000 | 0.15 | | 1.33 | |
| XL | Xl Company Switzerland Gmbh | 31.65 | 30.82 | 30.82 | 1,930,900 | 0.87 | | 2.75 | |
| XLS | Exelis Inc. Common Stock New Wh | 13.26 | 12.99 | 13.06 | 956,000 | 0.17 | | 1.28 | |
| XNY | China Xiniya Fashion | 1.130 | 1.110 | 1.110 | 15,600 | 0.010 | | 0.89 | |
| XOM | Exxon Mobil Corp. | 92.27 | 91.00 | 91.00 | 14,191,900 | 0.93 | | 1.01 | |
| XOXO | Xoxo Group Inc | 11.27 | 11.05 | 11.21 | 40,500 | 0.07 | | 0.63 | |
| XPO | Express-1 Expedited Solutions | 17.30 | 17.00 | 17.00 | 112,000 | 0.19 | | 1.11 | |
| XRM | Xerium Technologies | 10.99 | 10.70 | 10.75 | 124,800 | 0.10 | | 0.92 | |
| XRS | Tal Education Group | 10.32 | 10.16 | 10.22 | 146,400 | 0.07 | | 0.68 | |
| XRX | Xerox Corp. | 9.620 | 9.430 | 9.450 | 9,574,400 | 0.040 | | 0.42 | |
| XUE | Xueda Education Group | 3.280 | 3.100 | 3.220 | 202,200 | 0.120 | | 3.87 | |
| XVG | Lehman Abs Corp. | 25.88 | 25.76 | 25.85 | 1,100 | 0.03 | | 0.12 | |
| XYL | Xylem Inc. Common Stock New Whe | 27.69 | 27.24 | 27.25 | 605,300 | 0.41 | | 1.48 | |