Last Updated: May 2025 (East Setauket NY, Dallas TX and Naples FL)
John Demertzis Investigation Summary
Here’s what you need to know about East Setauket NY, Dallas TX and Naples FL, stockbroker John Demertzis:
- Name: Mr. John Spyro Demertzis
- Current Employer: Avantax Investment Services (since 10/2024)
- DBA: Avantax Insurance Agency, Demertzis Wealth Management , Aireen Associates
- Previous Firms:LPL Financial, Chase Investment Services, HSBC Securities
- Function: Stock Broker/ Financial Advisor/ Registered Investment Advisor
- Aliases: John Demertzis
- Primary Locations: East Setauket NY, Dallas TX and Naples FL
- CRD 2690132
- Can John Demertzis be sued in FINRA arbitration: Yes
- Sanctioned by FINRA: No
- Highest Settlement or Award: $200,000
Discuss your case with experienced investment fraud lawyer Bob Rex at (877) 224-3199 for a free consultation.
Did You Lose Money With John Demertzis As Your Stockbroker?
In 7/2023 a customer of LPL Financial filed a FINRA arbitration alleging that between 2016-2023 John Demertzis made unsuitable recommendations to purchase and hold alternative investments. That matter was settled in 8/2024 for $200,000.
[LEARN MORE]: See this for more information on REITs and Other Alternative Investments
In 2001 a customer was paid $14,000 to settle a claim alleging that Demertzis recommended an investment that was not approved by his firm and an annuity product alleged to be guaranteed against principal loss.
In 2/2024 a customer of LPL Financial filed a FINRA arbitration alleging that Demertzis made a recommendation to invest in a real estate security that was unsuitable for the customer’s investment objectives and risk tolerance. That case was withdrawn in 7/2024 and apparently the customer did not pursue the matter further.
[LEARN MORE]: See this for our prior investigations of cases involving Annuities
Allegations of Broker Misconduct Against John Demertzis
Customers of John Demertzis have alleged the following wrongdoing in connection with the handling of customer accounts:
- Unsuitable Recommendations to purchase and hold alternative investments
- Recommended an investment not approved by his firm
- Represented an annuity as being guaranteed against principal loss
Alternative Investments: These are assets that are not stocks, bonds or cash. Alternative investments generally fall within five categories: hedge funds, private capital, natural resources (oil and gas, energy), real estate (REITs) and infrastructure. They are typically less liquid that conventional investments, less regulated with higher fees and generally higher risk.
The Financial Industry Regulatory Authority (FINRA) is the agency that licenses and regulates stockbrokers and brokerage firms. FINRA requires brokers and brokerage firms to report customer complaints and disputes as well as regulatory sanctions. In addition brokers are required to disclose certain financial matters such as personal bankruptcies, judgments and liens.
Recover Your Investment Losses Now With Rex Securities Law
If you have suffered investment losses in an account handled by John Demertzis, contact us for a complimentary consultation with an experienced securities lawyer to learn how you may be able to recover damages through FINRA arbitration.
With offices in Boca Raton, FL and Austin, TX, stockbroker fraud attorney Bob Rex provides representation to investors nationwide who are seeking recovery of investment losses due to the negligence or fraud of stockbrokers, financial advisors and broker dealers.
If you have questions about how your account has been handled, call (877) 224-3199 to speak with an experienced securities attorney at no cost to you.
Most cases are handled on a contingent fee basis meaning that you do not pay legal fees unless we are successful.