DFX Intelligence
RIA Intelligence
Registered investment advisers, the advisors registered through them, the capital they report, the private vehicles they run and the people who own them, as a graph with a filing date behind every number. RAUM is what the adviser filed, a move is two registration dates, and a class is a rule you can read.
Registered advisor
Stephen Daniel Ostrofsky
Cambridge Investment Research Advisors, Inc.BD affiliatedBoynton Beach,, Fldual registrantIAPD 1551279
Certified Financial Planner
Feed of 09/14/2026
At current firm
4 y
since Mar 17, 2022
In the industry
34 y
since May 26, 1992 (earliest exam, job or registration)
Prior registered firms
5
IAPD previous registrations
State registrations
1
current, as an IAR
Firms today
1
current registrations
Exams
S63, S66
IA exams only
Book size
not public
not estimated here
Signals
1
dated events on this person
Registration history
IAPD current and previous registrations
- Cambridge Investment Research Advisors, Inc. BD affiliated currentsince Mar 17, 2022 · Boynton Beach,, Fl
- Kovack Advisors, Inc. BD affiliatedJun 30, 2014 to Mar 8, 2022 · Ft. Lauderdale, Fl
- Kovack Advisors, Inc. BD affiliatedNov 29, 2006 to Oct 15, 2009 · Ft. Lauderdale, Fl
- 21th Century Advisors Inc unclassifiedNov 2, 2004 to Oct 12, 2006 · Delray Beach, Fl
- K.W. Brown Investments unclassifiedNov 2, 2004 to Aug 19, 2005 · Delray Beach, Fl
- Msi Financial Services, Inc. formerOct 3, 2001 to Dec 9, 2002 · Boca Raton, Fl
Moves
a registration end followed by a registration begin elsewhere
- Kovack Advisors, Inc. to Cambridge Investment Research Advisors, Inc.left Mar 8, 2022, registered Mar 17, 2022 (9 days) · Affiliated broker-dealer or bank to another · moved with a team
- 21th Century Advisors Inc to Kovack Advisors, Inc.left Oct 12, 2006, registered Nov 29, 2006 (48 days) · Other
- K.W. Brown Investments to 21th Century Advisors Incleft Aug 19, 2005, registered Nov 2, 2004 (-290 days) · Other
- Msi Financial Services, Inc. to K.W. Brown Investmentsleft Dec 9, 2002, registered Nov 2, 2004 (694 days) · Other
Signals
- Stephen Daniel Ostrofsky left Kovack Advisors, Inc. for Cambridge Investment Research Advisors, Inc. (registered 2022-03-17)Mar 8, 2022 · Advisor changed firm · fact
Transition signals
Mobility scoring is not published yet. The observable conditions this page will draw on once the historical validation is done: tenure, the firm’s own departures and ownership changes, new state registrations, a new adviser entity with this person on Schedule A, and colleagues’ moves. Until precision and lead time are measured on known moves, no label is printed. Read the methodology.
Provenance
- Source
- IAPD individual compilation feedreportedadviserinfo.sec.gov
- Firm class
- Broker-dealer affiliated wealth managerderived
- Years in industry
- 34derivedfrom the earliest dated exam, employment or registration
- Not published
- disclosure flags, outside business text, branch street address