The National Trial Lawyers
Super Lawyers
500 Leading Plaintiff Financial Lawyers Lawdragon 2026
AVVO
Martindale-Hubbell
PIABA
American Arbitration Association ICDR Panel Member 2025
Top Financial Professionals in the US - Hot List
Justia Lawyer Rating for Adam Julien Gana
Chambers Spotlight 2026

The law offices of Gana Weinstein LLP represents investors in investment disputes with their financial advisors or brokerage firms, such as Bok Financial Securities, Inc.. Many investors do not recognize financial advisor misconduct when it happens, but there are steps that can be taken to recover investment losses. There are many different types of broker misconduct, including breach of fiduciary duty, failure to supervise, misrepresentation, and churning. The attorneys at Gana Weinstein LLP can analyze your investments to determine if there was actionable misconduct by the broker or brokerage firm.

BOK Financial Securities is the broker-dealer of BOK Financial Corporation, offering fixed income portfolio management, investment banking, public and corporate finance, and hedging and risk management to institutional clients, along with retail investment, financial planning and insurance services marketed as BOK Financial Advisors. Headquartered in Tulsa, Oklahoma and known as BOSC until 2016, the firm is the largest municipal bond underwriter in Oklahoma and one of the largest in the United States, serving clients nationwide across its parent’s major markets.

Bok Financial Securities, Inc. – By the Numbers:

The law offices of Gana Weinstein LLP represents investors in investment disputes with their financial advisors or brokerage firms, such as Commerce Brokerage Services, Inc.. Many investors do not recognize financial advisor misconduct when it happens, but there are steps that can be taken to recover investment losses. There are many different types of broker misconduct, including breach of fiduciary duty, failure to supervise, misrepresentation, and churning. The attorneys at Gana Weinstein LLP can analyze your investments to determine if there was actionable misconduct by the broker or brokerage firm.

Commerce Brokerage Services is the broker-dealer of Commerce Bank, operating within its institutional fixed income business to provide fixed income trading, asset liability management, safekeeping and bond accounting services to institutional clients. Registered since 1985 and based in Clayton, Missouri, the firm is part of Commerce Bancshares of Kansas City, a regional banking company with more than 155 years of history and branches across the Midwest.

Commerce Brokerage Services, Inc. – By the Numbers:

The investment lawyers at Gana Weinstein LLP have experience helping investors determine whether their portfolio losses at investment firms, such as Mariva Capital Markets, LLC, were caused by broker misconduct. There are many different ways that your broker can impermissibly drain your accounts. Our attorneys can help you understand the cause of your investment losses, uncover misconduct, and apply the law to hold accountable those responsible.

Mariva Capital Markets is an independent broker-dealer that provides trading and brokerage of global securities, including bonds, stocks, mutual funds, options, structured notes and currencies, along with custody, settlement and execution services for institutions and high-net-worth individuals. Based in Miami, Florida, the firm is the United States business unit of the Argentine financial group Mariva and offers access to more than 60 markets and 50 currencies through its clearing partners Pershing and StoneX.

Mariva Capital Markets, LLC – By the Numbers:

The securities attorneys at Gana Weinstein LLP represent investors in their disputes with brokerage firms, such as Virtu Americas LLC. Our firm can analyze your accounts and investments in order to determine if there was any broker misconduct in the handling of your accounts. Our analysis can reveal whether an investor has been a victim of misconduct such as unsuitable investments, unauthorized trading, excessive trading, or investment fraud.

Virtu Americas is a broker-dealer that makes markets with its own capital in United States equities, options, exchange-traded funds, and fixed income, and provides agency execution services including algorithmic trading, order routing, institutional sales trading, and an equities alternative trading system. Formed in Delaware in 2009, the firm is a clearing member of major United States stock exchanges including the New York Stock Exchange and is ultimately owned by Virtu Financial through Virtu Strategic Holdings.

Virtu Americas LLC – By the Numbers:

The securities lawyers at Gana Weinstein LLP represent investors who have been mistreated by their brokers and suffered investment losses. Our firm is experienced in bringing claims against brokerage firms, such as Key Investment Services LLC, to hold Wall Street responsible for their misconduct. When a client contacts our firm they can expect that our attorneys will have the knowledge and ability to evaluate the potential claims and analyze their trading activity for red flags of misconduct. Our consultations are designed to help provide clients with all available options.

Key Investment Services is a broker-dealer and investment adviser affiliated with KeyBank that executes client-directed trades in stocks, mutual funds, exchange-traded funds, bonds, annuities, variable life insurance, and certificates of deposit, and offers non-discretionary wrap fee and managed account programs. Formed in Ohio in 2005 and headquartered in Brooklyn, Ohio, the firm is part of KeyCorp and clears through Pershing on a fully disclosed basis.

Key Investment Services LLC – By the Numbers:

The securities lawyers at Gana Weinstein LLP represent investors who have been mistreated by their brokers and suffered investment losses. Our firm is experienced in bringing claims against brokerage firms, such as Cantor Fitzgerald & Co., to hold Wall Street responsible for their misconduct. When a client contacts our firm they can expect that our attorneys will have the knowledge and ability to evaluate the potential claims and analyze their trading activity for red flags of misconduct. Our consultations are designed to help provide clients with all available options.

Cantor Fitzgerald & Co is a broker-dealer and futures commission merchant that provides investment banking and advisory services, trades equities, exchange-traded funds, corporate, government, mortgage-backed, and municipal securities and financial futures, and clears for correspondent customers. Organized as a New York limited partnership in 1992 and based at 110 East 59th Street in New York, the firm is a primary dealer in United States government securities and is 94 percent owned by its managing general partner Cantor Fitzgerald Securities, a majority-owned subsidiary of Cantor Fitzgerald LP.

Cantor Fitzgerald & Co. – By the Numbers:

The law offices of Gana Weinstein LLP represents investors in investment disputes with their financial advisors or brokerage firms, such as US Tiger Securities, Inc.. Many investors do not recognize financial advisor misconduct when it happens, but there are steps that can be taken to recover investment losses. There are many different types of broker misconduct, including breach of fiduciary duty, failure to supervise, misrepresentation, and churning. The attorneys at Gana Weinstein LLP can analyze your investments to determine if there was actionable misconduct by the broker or brokerage firm.

US Tiger Securities is an introducing broker-dealer that provides online trading, execution, and corporate services to clients and foreign affiliates, with approved activities including underwriting, stock lending introductions, corporate access, mergers and acquisitions advisory, and research. Formed in New Jersey in 2010 as JFD Securities and renamed in 2018, the firm leases offices in New York City and is a wholly owned subsidiary of Tiger Fintech Holdings.

US Tiger Securities, Inc. – By the Numbers:

We represent clients of financial advisors and brokerage firms in investment disputes against their firms, such as Citadel Securities LLC. Our services cover a wide spectrum of broker misconduct, including unsuitable investments, failure to supervise, and losses in various investment products. Our firm can analyze your brokerage accounts, determine the extent of your investment losses, and understand the issues and remedies available.

Citadel Securities is a broker-dealer focused on market making and liquidity provision in United States options, equities, government securities, and foreign exchange products, along with trade execution services. Formed in Delaware in 2001 and headquartered at 200 South Biscayne Boulevard in Miami, the firm is wholly owned by its affiliate CSHC US and is a clearing member of the Depository Trust Company, National Securities Clearing Corporation, Fixed Income Clearing Corporation, and Options Clearing Corporation.

Citadel Securities LLC – By the Numbers:

The securities lawyers at Gana Weinstein LLP represent investors who have been mistreated by their brokers and suffered investment losses. Our firm is experienced in bringing claims against brokerage firms, such as Bulltick, LLC, to hold Wall Street responsible for their misconduct. When a client contacts our firm they can expect that our attorneys will have the knowledge and ability to evaluate the potential claims and analyze their trading activity for red flags of misconduct. Our consultations are designed to help provide clients with all available options.

Bulltick is a broker-dealer that executes United States traded equities, exchange-traded funds, and ADRs as agent for customers mainly in Latin America, helps convert ADRs into local shares, and trades ETFs, ADRs, and foreign debt mostly on a riskless principal basis. Formed in Delaware in 2000, the firm has been based on Brickell Avenue in Miami with representative offices in Mexico City and Bogota, and its sole member is Bulltick Capital Markets Holdings.

Bulltick, LLC – By the Numbers:

The securities lawyers at Gana Weinstein LLP represent investors who have been mistreated by their brokers and suffered investment losses. Our firm is experienced in bringing claims against brokerage firms, such as Canaccord Genuity LLC, to hold Wall Street responsible for their misconduct. When a client contacts our firm they can expect that our attorneys will have the knowledge and ability to evaluate the potential claims and analyze their trading activity for red flags of misconduct. Our consultations are designed to help provide clients with all available options.

Canaccord Genuity is a broker-dealer that provides corporate finance, underwriting, and mergers and acquisitions advisory services along with institutional sales and trading of domestic and foreign securities and equity options and equity research. Based at One Pennsylvania Plaza in New York, the firm is ultimately owned by Vancouver-based Canaccord Genuity Group, routes certain foreign trades through affiliated broker-dealers in Canada, the United Kingdom, and Australia, and sold its United States wholesale market making business in November 2025.

Canaccord Genuity LLC – By the Numbers:

Contact Information