JACK ARMSTRONG DERBY is an investment adviser representative (IAR) with state registration records since 1999, appearing at 4 firms. Currently registered with CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC..
| Firm | From | To | Current |
|---|---|---|---|
| CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC. | 2008-07-28 | present | Yes |
| CETERA ADVISORS LLC | 2007-12-17 | 2008-06-27 | — |
| MML INVESTORS SERVICES, LLC | 2003-05-28 | 2005-01-25 | — |
| WS GRIFFITH SECURITIES, INC. | 1999-01-01 | 2003-05-23 | — |