| Aldeyra Therapeutics Inc (ALDX) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| America First Multifamily Investors LP (ATAX) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| American Superconductor Corporation (AMSC) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| ANSYS, Inc. (ANSS) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Antares Pharma Inc (ATRS) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Applied Genetic Technologies Corp (AGTC) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Arca Biopharma Inc (ABIO) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Arena Pharmaceuticals, Inc. (ARNA) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| ASML Holding NV (ADR) (ASML) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Athersys, Inc. (ATHX) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| AXT Inc (AXTI) NASDAQ - National Association of Securities Dealers Automated Quotations | |
| Aaron's, Inc. (AAN) NYSE - The New York Stock Exchange | |
| ABB Ltd (ADR) (ABB) NYSE - The New York Stock Exchange | |
| Acorn International, Inc. (ADR) (ATV) NYSE - The New York Stock Exchange | |
| Acuity Brands, Inc. (AYI) NYSE - The New York Stock Exchange | |