| Abbreviation | Definition |
|---|---|
| BKR | Michael Baker Corporation |
| BL | Blair Corporation |
| BLD | Baldwin Technology, Inc. |
| BLM | Blimpie International, Inc. |
| BMI | Badger Meter, Inc. |
| BND | Boundless Corporation |
| BND | Vanguard Total Bond Market Exchange Traded Fund |
| BNP | Boddie- Noell Properties, Inc. |
| BNT | Bentley Pharmaceuticals, Inc. |
| BNTB | Bentley Pharmaceuticals, Inc. Class B |
| BNTB | Bentley Pharmaceuticals, Inc. Class B (de-listed) |
| BNTB | Bentley Pharmaceuticals, Inc. Class B (de-listed) |
| BNX | Merrill Lynch & Company, Inc. |
| BOC | Beard Company |
| BPS | Blackrock Pennsylvania Strategic Municipal Trust |
| BRB | BRistol Brass Corporation (former symbol; de-listed) |
| BRN | Barnwell Industries, Inc. |
| BRN | Barnwell Industries, Incorporated (de-listed) |
| BRN | Barnwell Industries, Incorporated (de-listed) |
| BTI | British American Tobacco, P. L. C. |