Jay Diamond has held the title Member at Investmark Advisory Group since November 2016, is a control person of the firm and directly owns between 25% and 50% of it. Jay Diamond holds an MBA from the University of Connecticut and an Undergraduate degree in finance from the University of Connecticut.
Investmark Advisory Group LLC is a Shelton, CT firm with $930M under management, 690 clients and 10 advisers across 5 offices, as of its March 2026 filing.
Jay M. Diamond is Managing Principal and Chief Market Strategist of Investmark Advisory Group. He has been at the firm since 1990, serving as senior advisor, senior partner and now managing principal. He provides financial planning and investment advisory services to clients, oversees the development of the firm's junior advisors, and oversees the firm's wealth management process, which includes a quarterly webcast with an economic outlook.
Jay Diamond’s longest registration is the current one, 34 years at Investmark Advisory Group since 1992.
- Commonwealth Financial NetworkAlso current– present · 25 yearsShelton, CT · Adviser representative · Firm CRD 8032
- – present · 34 yearsShelton, CT · Adviser representative · Firm CRD 121060
Investment adviser representative registrations
Jay Diamond is registered as an investment adviser representative in 3 states, as a resident of Texas. The first approvals date from February 1992; the most recent is Texas, in March 2026.
- ConnecticutSince 25 February 1992
- TexasResidentSince 25 August 2022
- TexasSince 24 March 2026
Examinations
| Exam | Name | Passed |
|---|---|---|
| SIE | Securities Industry Essentials Examination | Credited |
| Series 51 | Municipal Fund Securities Principal Examination | 26 March 2003 |
| Series 24 | General Securities Principal Examination | 22 October 1990 |
| Series 7 | General Securities Representative Examination | 20 September 1986 |
| Series 22 | Direct Participation Programs Representative Examination | 11 December 1984 |
| Series 6 | Investment Company Products/Variable Contracts Representative Examination | 25 September 1984 |
| Series 63 | Uniform Securities Agent State Law Examination | 20 August 1984 |
| Series 52 | Municipal Securities Representative Examination | 8 August 1984 |
- Name
- Securities Industry Essentials Examination
- Name
- Municipal Fund Securities Principal Examination
- Name
- General Securities Principal Examination
- Name
- General Securities Representative Examination
- Name
- Direct Participation Programs Representative Examination
- Name
- Investment Company Products/Variable Contracts Representative Examination
- Name
- Uniform Securities Agent State Law Examination
- Name
- Municipal Securities Representative Examination
- Full name
- Jay Marc Diamond
- CRD
- 1293312
- Firm
- Investmark Advisory Group · CRD 121060
- Role
- Member
- Office
- 3 ENTERPRISE DRIVE, FOURTH FLOOR, Shelton, CT 06484
- Registration
- Investment adviser and broker registrations
- In the industry since
- August 1984
- Disciplinary history
- Not yet shown here · SEC record · BrokerCheck
- Firm bio
- investmark.net
Where does Jay Diamond work?
Jay Diamond has held the title Member at Investmark Advisory Group LLC since November 2016, and is a control person of the firm.
Is Jay Diamond a financial advisor?
Yes. Jay Diamond has a current investment-adviser registration in Connecticut, Texas and Texas, through Investmark Advisory Group since February 1992.
How many years of experience does Jay Diamond have?
Jay Diamond has 42 years in the financial industry, since August 1984, across 2 adviser firms.
What exams has Jay Diamond passed?
Jay Diamond has passed 7 licensing exams: the Series 52, Series 63, Series 6, Series 22, Series 7, Series 24 and Series 51. The earliest, the Series 52, was passed in August 1984. FINRA credited Jay Diamond with the SIE, which began in October 2018.
Where is Jay Diamond based?
Jay Diamond’s registered office is in Shelton, CT.
Is Jay Diamond registered with FINRA?
Yes. Jay Diamond has a current broker registration, under CRD 1293312.
Source: FINRA BrokerCheck
How can I verify Jay Diamond’s record?
Search CRD 1293312 on the SEC’s adviser search (adviserinfo.sec.gov) and FINRA’s broker search (brokercheck.finra.org), which publish Jay Diamond’s full registration record.
