| Nom | Code | Valeur | Code ISIN |
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| KMG CHEMICALS, INC. | KMGB | Action | US4825641016 |
| KNIGHT CAPITAL GROUP. | NITE | Action | US4990051066 |
| KNIGHTSBRIDGE TANKERS, LIMITED | VLCCF | Action | BMG5299G1069 |
| KNOLOGY, INC. | KNOL | Action | US4991838040 |
| KNOT, INC. (THE) | KNOT | Action | US4991841093 |
| KNTA0 | KNTA0 | Action | |
| KOHLBERG CAPITAL CORPORATION | KCAP | Action | |
| KONA GRILL, INC. | KONA | Action | US50047H2013 |
| KONGZHONG CORPORATION ADR | KONG | Action | US50047P1049 |
| KOPIN CORPORATION | KOPN | Action | US5006001011 |
| KOSS CORPORATION | KOSS | Action | US5006921085 |
| KRATOS DEFENSE & SECURITY SOLUTIONS. | KTOS | Action | |
| KREISLER MANUFACTURING CORPORATION | KRSL | Action | US5007731061 |
| KSW INC | KSW | Action | |
| K-SWISS INC. | KSWS | Action | US4826861027 |
| K-TRON INTERNATIONAL. | KTII | Action | US4827301080 |
| KULICKE AND SOFFA INDUSTRIES. | KLIC | Action | US5012421013 |
| KVH INDUSTRIES, INC. | KVHI | Action | US4827381017 |