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Isaac Mamaysky

Advisor at QuantStreet Capital

Updated today

Location

Rye, NY

Credentials

Series 65

Industry experience

4 years

About

Isaac Mamaysky is a financial advisor at QuantStreet Capital with four years of industry experience and holds a Series 65 designation. He has a background in law, currently attending Pace Law School and previously attending Albany Law School, and is also a practicing attorney at Potomac Law Group, PLLC. Outside of finance, he is involved with CZ Wellness Group, Inc., a business he has been part of since 2012. QuantStreet Capital provides quantitative investment management, financial planning, and consulting services to individuals, nonprofit endowments, trusts, retirement plans, and businesses. The firm uses a systematic, algorithm-driven asset allocation process across multiple risk-targeted strategies and offers model portfolio subscriptions and outside-CIO services to other advisers and asset managers.

Client services

Based on QuantStreet Capital

Financial planning Portfolio management Newsletters or periodicals Educational seminars or workshops Model portfolios

Expertise

Based on QuantStreet Capital

Active portfolio management Factor investing / smart beta Tax-loss harvesting

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Fee options

Fixed

Flat fees possible for consulting and speaking engagements, negotiated case-by-case; no current clients

Percentage

0.30% to 0.80% annually (negotiable based on account size, complexity, and services)

Project-based

Hourly fees for consulting and speaking engagements, negotiated case-by-case; no current clients

Subscriptions

Model portfolio subscription fees range from $1,200 to $31,000 annually, billed quarterly in advance, negotiable based on AUM and services provided

Other

Account minimum: $300,000

Location

Rye, NY

Most active in

New York · Texas

Work history

PACE Law School

2024 - Present (2 years)

EBH Capital Management LLC dba Quantstreet Capital

2022 - Present (4 years)

Albany Law School

2020 - 2024 (4 years)

Potomac Law Group, PLLC

2019 - Present (7 years)

CZ Wellness Group, Inc.

2012 - Present (14 years)

Disclosures

Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.

Business activities & affiliations

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Deirdre S

CFP®

Mamaroneck, NY

Sparrow Wealth Management

Deirdre Smith is a CFP® professional with experience at Capital Group, Elodie Wealth, and Sparrow Wealth Management, where she has worked since 2025. She is based in Mamaroneck, NY. Sparrow Wealth Management is a registered investment adviser serving individuals and high-net-worth clients with discretionary and non-discretionary investment management and financial planning. The firm’s approach combines asset allocation based on Modern Portfolio Theory and fundamental analysis, blending passive and active investments while incorporating tax considerations and ESG screens upon client request.

Business ownership considerations Cash flow / budgeting College savings (529s, UTMA, etc.)
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John W

CFP®, Series 66

Yonkers, NY

Wieder Financial Corp.

John Wieder is a CFP® and holds a Series 66 license. He is the sole advisor at Wieder Financial Corp. with one year of industry experience. Wieder is also a licensed attorney in New York and owns a title insurance business. He has worked at Nationwide Settlements Solutions since 2008. Wieder Financial Corp. is an independent, state-registered advisory firm serving individual clients through a co-advisory arrangement with a third-party money manager. The firm focuses on broad-based asset categories using funds-of-funds, mutual funds, and ETFs, while portfolio management and trading are handled by the selected money manager.

Wealth management Passive / index investing General retirement planning
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Fabian D

CFP®, CFA®

White Plains, NY

FMD Wealth Advisors LLC

Fabian Degen is a CFP® and CFA® credentialed advisor with one year of industry experience. He is the sole advisor at FMD Wealth Advisors LLC, an independent firm located in White Plains, NY. Prior to founding his firm, he worked for 16 years at DWS Group. In addition to his advisory role, he performs seasonal tax preparation work with H&R Block. FMD Wealth Advisors is a fee-only independent registered investment adviser serving individual and high-net-worth clients. The firm offers wealth management, investment management, and financial planning services, typically utilizing low-cost mutual funds and ETFs within a process that combines fundamental and technical analysis for long-term portfolio construction.

Options & derivatives strategies Divorce financial planning
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Gabriel N

CFA®

Stamford, CT

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Gabriel Nardi is a CFA® charterholder based in Stamford, CT, currently serving as the sole advisor at Tadpole Investments LLC. He has prior experience at Third Avenue Management and BlazeRidge LLC. Outside of his advisory work, he is the founder of a software company developing a web-based application to assist book authors. Tadpole Investments LLC provides discretionary portfolio management and financial planning services to individual and high-net-worth clients. The firm employs cyclical, fundamental, and quantitative analysis with a range of trading strategies, including performance-based fee arrangements for qualified clients.

Options & derivatives strategies
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Antonio T

CFP®, Series 63

White Plains, NY

Financial Planning Associates, LLC

Antonio Taddeo is a CFP®-certified financial advisor with 13 years of industry experience. He is currently with Financial Planning Associates, LLC and previously worked at Gladstone Wealth Partners. In addition to his advisory work, he is involved in insurance sales on a part-time basis. Financial Planning Associates, LLC provides investment supervisory services and financial planning to individuals, high-net-worth households, and small business clients, including pension and profit-sharing plan sponsors. The firm offers discretionary portfolio management using both fundamental and technical analysis, and it maintains an affiliated insurance practice alongside its investment services.

Wealth management College savings (529s, UTMA, etc.) Annuities Real estate investing
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David F

Series 63, Series 65

Englewood Cliffs, NJ

Malvern Ridge Wealth Management

David Frazier is a financial advisor with Malvern Ridge Wealth Management, holding Series 63 and Series 65 licenses and bringing 23 years of industry experience. His prior roles include positions at MML Investors Services, MassMutual, PRUCO Securities, and The Prudential Insurance Company of America. Outside of advising, he is involved in medical practice consulting, operates an art studio, and works in various insurance brokerage roles. Malvern Ridge Wealth Management is an independent firm managing approximately $6.9 million for about 21 clients. The firm offers tailored investment management and financial planning services, primarily using a passive investment approach with diversified portfolios of index mutual funds and ETFs, complemented by periodic account reviews and the option for discretionary management.

General retirement planning Cash flow / budgeting College savings (529s, UTMA, etc.)
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