| Name | Ticker | Type | ISIN code |
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| ALSERES PHARMACEUTICALS. | ALSE | Stock | |
| ALSIUS CORPORATION | ALUS | Stock | |
| ALSIUS CORPORATION - UNIT CONSISTING OF | ALUSU | Stock | |
| ALSIUS CORPORATION - WARRANT 08/03/2009 | ALUSW | Stock | |
| ALTAIR NANOTECHNOLOGIES INC. | ALTI | Stock | CA0213731056 |
| ALTERA CORPORATION | ALTR | Stock | US0214411003 |
| ALTIGEN COMMUNICATIONS. | ATGN | Stock | US0214891097 |
| ALTO PALERMO S.A. ADR | APSA | Stock | US02151P1075 |
| ALTRA HOLDINGS, INC. | AIMC | Stock | |
| ALTUS PHARMACEUTICALS INC. | ALTU | Stock | US02216N1054 |
| ALVARION LTD. | ALVR | Stock | IL0010844582 |
| AMAB0 | AMAB0 | Stock | |
| AMAG PHARMACEUTICALS. | AMAG | Stock | US00753P1030 |
| AMARIN CORPORATION PLC ADR | AMRN | Stock | US0231111073 |
| AMAZON.COM, INC. | AMZN | Stock | US0231351067 |
| AMBASSADORS GROUP. | EPAX | Stock | US0231771082 |
| AMBASSADORS INTERNATIONAL. | AMIE | Stock | US0231781065 |
| AMCOMP INCORPORATED | AMCP | Stock | US02342J1016 |
| AMCORE FINANCIAL. | AMFI | Stock | US0239121082 |
| AMEDISYS INC | AMED | Stock | US0234361089 |
| AMEN PROPERTIES INC. | AMEN | Stock | US0234772012 |
| AMERCO | UHAL | Stock | US0235861004 |
| AMERIANA BANCORP | ASBI | Stock | US0236131027 |
| AMERICA FIRST TAX EXEMPT INVESTORS, L.P. | ATAX | Stock | |
| AMERICA MOVIL, S.A.B. DE C.V. | AMOV | Stock | US02364W2044 |