| Code | Name | High | Low | Close | Volume | Change | |
| JACK | JACK IN THE BOX INC | 24.42 | 23.63 | 23.91 | 1,210,900 | 0.25 |  | 1.03 | 7 |
| JADE | LJ International Inc. | 2.950 | 2.710 | 2.800 | 347,100 | 0.150 |  | 5.08 | 6 |
| JAKK | JAKKS Pacific Inc. | 13.74 | 13.49 | 13.74 | 531,600 | 0.33 |  | 2.46 | 4 |
| JASO | JA Solar Holdings Co. Ltd. | 4.600 | 4.420 | 4.530 | 7,062,700 | 0.080 |  | 1.74 | 4 |
| JAVA | Sun Microsystems Inc. | 9.490 | 9.460 | 9.490 | 11,804,400 | 0.010 |  | 0.11 | 7 |
| JAX | J. Alexander's Corporation | 4.810 | 4.310 | 4.390 | 14,300 | 0.150 |  | 3.30 | 6 |
| JAXB | Jacksonville Bancorp Inc. | 9.120 | 9.120 | 9.120 | 100 | 0.030 |  | 0.33 | 6 |
| JAZZ | Jazz Pharmaceuticals Inc. | 13.75 | 12.08 | 12.46 | 1,649,200 | 0.19 |  | 1.50 | 8 |
| JBHT | J.B. Hunt Transport Services Inc. | 36.72 | 35.83 | 35.91 | 2,153,800 | 0.44 |  | 1.21 | 6 |
| JBLU | JetBlue Airways Corporation | 5.430 | 5.250 | 5.340 | 10,183,700 | 0.050 |  | 0.93 | 6 |
| JBSS | John B. Sanfilippo & Son Inc. | 16.23 | 15.06 | 15.52 | 59,000 | 0.48 |  | 3.00 | 7 |
| JCDA | Jacada Ltd. | 1.550 | 1.550 | 1.550 | 1,500 | 0.010 |  | 0.64 | 5 |
| JCOM | j2 Global Communications Inc | 24.58 | 23.96 | 23.98 | 701,700 | 0.38 |  | 1.56 | 5 |
| JCS | Communications Systems Inc. | 12.98 | 12.77 | 12.95 | 18,200 | 0.17 |  | 1.33 | 5 |
| JCTCF | Jewett-Cameron Trading Company | 8.120 | 7.770 | 8.120 | 500 | 0.070 |  | 0.85 | 4 |
| JDAS | JDA Software Group Inc. | 27.99 | 27.12 | 27.66 | 590,100 | 0.10 |  | 0.36 | 7 |
| JDSU | JDS Uniphase Corporation | 11.34 | 10.82 | 10.96 | 9,049,800 | 0.31 |  | 2.75 | 6 |
| JFBC | Jeffersonville Bancorp | 11.00 | 10.62 | 10.62 | 200 | 0.39 |  | 3.54 | 6 |
| JFBI | Jefferson Bancshares Inc. | 4.950 | 4.210 | 4.950 | 3,900 | 0.550 |  | 12.50 | 7 |
| JJSF | J & J Snack Foods Corp. | 44.66 | 43.89 | 44.01 | 79,700 | 0.42 |  | 0.95 | 7 |
| JKHY | Jack Henry & Associates Inc. | 24.88 | 24.40 | 24.49 | 847,000 | 0.09 |  | 0.37 | 6 |
| JMBA | Jamba Inc. | 2.150 | 2.050 | 2.130 | 537,300 | 0.030 |  | 1.39 | 6 |
| JOBS | 51job Inc. | 18.19 | 18.00 | 18.09 | 7,100 | 0.01 |  | 0.06 | 4 |
| JOEZ | Joe's Jeans Inc. | 2.550 | 2.470 | 2.550 | 702,100 | 0.080 |  | 3.24 | 7 |
| JOSB | Jos. A. Bank Clothiers Inc. | 49.59 | 48.68 | 49.51 | 397,600 | 0.12 |  | 0.24 | 6 |
| JOUT | Johnson Outdoors Inc. | 11.50 | 11.27 | 11.50 | 400 | 0.00 |  | 0.00 | 6 |
| JOYG | Joy Global Inc. | 56.75 | 54.42 | 55.00 | 3,584,000 | 1.49 |  | 2.64 | 6 |
| JRCC | James River Coal Company | 16.92 | 15.72 | 15.84 | 1,654,900 | 0.91 |  | 5.43 | 5 |
| JRJC | China Finance Online Co. Limited | 8.040 | 7.610 | 7.740 | 113,300 | 0.440 |  | 5.38 | 6 |
| JSDA | Jones Soda Co. | 0.5600 | 0.5300 | 0.5400 | 41,200 | 0.0000 |  | 0.00 | 7 |
| JST | JINPAN INTL LTD | 21.15 | 20.07 | 20.32 | 241,900 | 0.63 |  | 3.01 | 4 |
| JVA | Coffee Holding Co. | 4.950 | 4.810 | 4.900 | 5,600 | 0.130 |  | 2.58 | 4 |
| JXSB | Jacksonville Bancorp Inc. | 11.51 | 11.25 | 11.25 | 800 | 0.15 |  | 1.35 | 5 |