| Code | Name | High | Low | Close | Volume | Change | |
|---|
| XATA | XATA Corporation | 2.540 | 2.480 | 2.490 | 3,200 | 0.050 |  | 1.97 | 6 |
| XBKS | XENITH BANKSHARES INC. | 5.990 | 5.990 | 5.990 | 100 | 0.260 | | 4.16 | 5 |
| XETA | XETA Technologies Inc. | 3.050 | 2.870 | 2.970 | 6,300 | 0.230 | | 7.19 | 7 |
| XIDE | Exide Technologies | 4.640 | 4.470 | 4.470 | 432,800 | 0.060 | | 1.32 | 5 |
| XIDEW | Exide Technologies | 0.0102 | 0.0050 | 0.0050 | 53,600 | 0.0050 | | 50.00 | 4 |
| XING | Qiao Xing Universal Telephone Inc. | 1.760 | 1.670 | 1.680 | 166,600 | 0.020 | | 1.18 | 7 |
| XLBS | MATERIALS S&P US SEL SECTOR SOUR | 23.67 | 23.54 | 23.54 | 800 | 1.32 |  | 5.94 | 5 |
| XLES | ENERGY S&P US SEL SECTOR SOURCE | 22.78 | 22.77 | 22.77 | 1,200 | 0.54 | | 2.32 | 7 |
| XLFS | FINANCIALS S&P US SEL SECTOR SOU | 23.85 | 23.60 | 23.62 | 1,900 | 0.35 | | 1.46 | 6 |
| XLIS | INDUSTRIALS S&P US SEL SECTOR SO | 23.35 | 23.15 | 23.15 | 800 | 0.56 | | 2.36 | 7 |
| XLKS | TECHNOLOGY S&P US SEL SECTOR SOU | 22.98 | 22.45 | 22.45 | 3,300 | 0.57 | | 2.48 | 7 |
| XLNX | Xilinx Inc. | 25.39 | 24.85 | 24.97 | 5,040,200 | 0.42 | | 1.65 | 6 |
| XLPS | CO STAPLE S&P US SEL SECTOR SO | 26.15 | 26.03 | 26.03 | 900 | 0.03 | | 0.12 | 6 |
| XLUS | UTILITIES S&P US SEL SECTOR SOUR | 25.88 | 25.61 | 25.61 | 2,500 | 0.42 | | 1.61 | 6 |
| XLVS | HEALTH CARE S&P US SEL SECTOR SO | 23.46 | 23.22 | 23.22 | 1,600 | 0.27 | | 1.15 | 6 |
| XLYS | CO DISC S&P US SEL SECTOR SOUR | 22.82 | 22.46 | 22.49 | 1,600 | 0.57 | | 2.47 | 7 |
| XNPT | XenoPort Inc. | 6.040 | 5.900 | 6.020 | 186,700 | 0.000 |  | 0.00 | 5 |
| XOMA | XOMA Ltd. | 0.2900 | 0.2800 | 0.2800 | 4,478,300 | 0.0000 | | 0.00 | 6 |
| XOMAD | Xoma Ltd. | 3.560 | 2.910 | 3.260 | 752,900 | 0.340 | | 11.64 | 6 |
| XPRT | LECG Corporation | 1.420 | 1.270 | 1.270 | 109,100 | 0.150 | | 10.56 | 5 |
| XRAY | DENTSPLY International Inc. | 29.64 | 29.16 | 29.20 | 720,100 | 0.64 | | 2.14 | 6 |
| XRIT | X-Rite Incorporated | 3.520 | 3.360 | 3.370 | 40,000 | 0.120 | | 3.44 | 5 |
| XRTX | Xyratex Ltd. | 13.94 | 13.10 | 13.19 | 603,900 | 0.75 | | 5.38 | 8 |
| XSEL | XINHUA FINANCE MEDIA | 0.1900 | 0.1700 | 0.1900 | 101,200 | 0.0200 | | 11.76 | 3 |
| XTEX | Crosstex Energy L.P. | 12.72 | 12.51 | 12.69 | 68,700 | 0.11 | | 0.86 | 6 |
| XTXI | Crosstex Energy Inc. | 7.770 | 7.510 | 7.680 | 336,500 | 0.030 | | 0.39 | 7 |
| XWES | WORLD ENERGY SOLUTIO INC DEL | 2.560 | 2.560 | 2.560 | 100 | 0.040 | | 1.54 | 4 |
| XXIA | Ixia | 11.91 | 11.72 | 11.75 | 236,900 | 0.18 | | 1.51 | 8 |