Introduction
Capital Markets Law No. 6362 is the principal legal framework governing capital markets in Turkey. It regulates the issuance, public offering, sale, trading and supervision of capital market instruments, as well as the activities of issuers, public companies, investment institutions, exchanges, market operators, clearing institutions, central securities depositories and other capital market participants. For companies planning to raise funds, investors seeking legal certainty, brokerage firms, portfolio management companies, financial technology businesses and foreign institutions entering the Turkish market, understanding Capital Markets Law No. 6362 is essential.
The law entered into force on 30 December 2012 and introduced a modern legal structure for Turkish capital markets. The Capital Markets Board of Türkiye has stated that the new Capital Markets Law No. 6362 created a new framework for financial markets and aimed to establish a stronger legal regime for market participants while strengthening investor protection.
The main objective of the Turkish capital market regime is to ensure that capital markets operate in a reliable, transparent, efficient, stable, fair and competitive environment. This objective is important because capital markets depend on trust. If investors believe that information is misleading, markets are manipulated or financial institutions operate without authorization, the entire system may lose credibility. Therefore, Capital Markets Law No. 6362 is not only a technical financial statute; it is also a protective legal framework designed to preserve market confidence.
Scope of Capital Markets Law No. 6362
Capital Markets Law No. 6362 applies to a wide range of legal relationships and market actors. It covers capital market instruments, issuers, public companies, investment services, capital market institutions, exchanges, organized markets, clearing institutions, custody systems and supervisory mechanisms. The Capital Markets Board’s official legislation page lists the Capital Markets Law together with a wide set of secondary regulations on prospectuses, sales of instruments, shares, debt securities, lease certificates, corporate governance, takeover bids, investment services, investment firms, crowdfunding and crypto asset service providers.
This broad scope means that the law is not limited to listed shares traded on Borsa İstanbul. It also applies to bonds, bills, lease certificates, warrants, certificates, derivatives, investment funds, public offerings, private placements, portfolio management activities, investment advisory services, brokerage activities, leveraged transactions, custody services and, after recent amendments, certain crypto asset services.
For businesses, the first legal question is whether the proposed transaction, product or activity falls within the scope of capital market legislation. A company may believe that it is merely raising funds, issuing tokens, selling debt instruments, operating an online investment platform or providing financial commentary. However, if the structure involves capital market instruments, public solicitation, investment expectations, intermediation or regulated investment services, Capital Markets Law No. 6362 may apply.
The Capital Markets Board of Türkiye
The Capital Markets Board of Türkiye, known as the CMB in English and SPK in Turkish, is the main regulatory and supervisory authority for Turkish capital markets. The Board has the authority to issue secondary legislation, approve prospectuses and issuance documents, supervise capital market institutions, impose administrative sanctions, file criminal complaints where necessary and take measures to protect investors and the proper functioning of markets.
The role of the CMB is especially important because capital markets are highly sensitive to information asymmetry. Issuers generally have more information than investors. Intermediaries may have greater technical knowledge than retail clients. Market participants may attempt to influence prices through misleading statements or coordinated transactions. The CMB’s supervisory function is intended to reduce these risks and create a more reliable market environment.
The CMB’s communiqués form a substantial part of the practical legal framework. The official list of CMB communiqués includes regulations on prospectuses, sales of capital market instruments, portfolio management companies, lease certificates, shares, financial reporting, debt securities, corporate governance, the public disclosure platform, dividends, market abuse and investment funds.
Capital Market Instruments Under Turkish Law
Capital market instruments are the foundation of the Turkish securities law system. They generally include securities, derivative instruments and other instruments designated by the CMB. In practice, this category may include shares, bonds, bills, lease certificates, warrants, certificates, investment fund units, derivatives and similar financial instruments.
The classification of an instrument is legally significant. If an instrument is treated as a capital market instrument, its issuance, sale, public offering, trading and marketing may be subject to CMB approval, disclosure obligations, licensing rules and investor protection requirements.
For example, the Communiqué on Shares VII-128.1 regulates the procedures and principles concerning the issue of shares and quasi-shares under Capital Markets Law No. 6362. It also states that corporations and public offerors must apply to the Board for certain transactions, including public offerings of existing shares or shares to be issued through capital increase.
This means that a company cannot freely offer shares to the public without complying with capital market rules. Public fundraising through shares is subject to a regulatory process designed to protect investors and ensure transparency.
Public Offerings in Turkey
Public offerings are among the most important and most regulated transactions under Capital Markets Law No. 6362. A public offering generally means a general call made by any means for the purchase of capital market instruments and the sale conducted following that call. The public nature of the invitation is critical because it may affect a broad investor base.
A company planning an initial public offering in Turkey must carefully prepare its legal, financial and corporate structure. Public offering is not merely a financing method; it transforms the company’s relationship with investors, regulators and the market. The company becomes subject to higher standards of transparency, public disclosure, corporate governance and accountability.
The Communiqué on Sales of Capital Market Instruments II-5.2 regulates principles concerning sales methods, distribution and delivery of capital market instruments. It also covers price determination, sales types and methods, distribution, delivery, incentives in public offerings and priorities in sales.
In practice, public offerings require coordination between the issuer, intermediary institution, legal counsel, independent auditors, valuation experts and the CMB. The offering documents must be accurate, complete and consistent. Any misleading statement or omission may create civil, administrative or even criminal consequences depending on the nature of the violation.
Prospectus and Issuance Document Requirements
One of the central mechanisms of investor protection under Capital Markets Law No. 6362 is the prospectus requirement. A prospectus is a legal disclosure document prepared for investors. Its purpose is to provide sufficient information about the issuer, the securities, risk factors, financial condition, management, business operations, use of proceeds and legal risks.
The CMB’s legislation framework includes the Communiqué on Prospectus and Issue Document II-5.1 as one of the core secondary regulations applicable to capital market offerings.
A prospectus should not be treated as a promotional brochure. It is a legally binding disclosure document. If investors suffer losses because of false, misleading or incomplete information in the prospectus, responsible persons may face liability. This may include the issuer, directors, persons signing the prospectus, intermediary institutions and other responsible parties depending on the circumstances.
For this reason, legal due diligence is indispensable before a public offering. The issuer’s corporate records, contracts, litigation files, intellectual property rights, employment liabilities, tax risks, related-party transactions, real estate assets, financial statements and regulatory obligations should be reviewed carefully.
Public Companies and Ongoing Disclosure Duties
Once a company becomes public or listed, its legal obligations continue. Public companies are subject to ongoing disclosure duties, corporate governance requirements, financial reporting obligations and investor relations responsibilities.
Disclosure is a core principle of capital market law. Investors must be able to access timely, complete and accurate information. Material developments that may affect the price or value of capital market instruments, or investors’ decisions, must be disclosed in accordance with applicable rules.
The Communiqué on Material Events Disclosure Regarding Non-Publicly Traded Corporations states that its purpose is to regulate public disclosure of information, events and developments that may affect the value or price of capital market instruments or investors’ investment decisions, with the aim of ensuring reliable, transparent, efficient, stable, fair and competitive capital markets.
Although the specific disclosure regime may vary according to whether the company is listed, publicly held or otherwise subject to capital market rules, the underlying principle is the same: investors should not be left in the dark about material information.
Corporate Governance Under Capital Markets Law No. 6362
Corporate governance is another important component of Turkish capital market regulation. Public companies must be managed in a way that protects shareholders, respects minority rights, ensures board accountability and supports transparent decision-making.
The CMB’s communiqués include the Communiqué on Corporate Governance II-17.1 among the main regulations applicable to public companies and issuers.
Corporate governance obligations may concern board structure, independent directors, committees, related-party transactions, shareholder rights, voting procedures, investor relations, public disclosure and internal control mechanisms. These rules are particularly important where there is a controlling shareholder and dispersed minority shareholders.
Good corporate governance is not only a legal obligation. It is also a market advantage. Investors are more likely to trust companies with transparent management, reliable reporting and fair treatment of shareholders. Weak governance may reduce investor confidence, increase litigation risk and negatively affect valuation.
Investment Services and Authorized Institutions
Investment services are regulated activities under Capital Markets Law No. 6362. These services may include receiving and transmitting orders, executing orders, dealing on own account, portfolio management, investment advice, underwriting, placement, custody and other ancillary services.
The Communiqué on Principles Regarding Investment Services, Activities and Ancillary Services III-37.1 states that its purpose is to determine the principles for authorization of investment firms and the rules to be followed while providing investment services, activities and ancillary services. It is based on several provisions of Capital Markets Law No. 6362, including Articles 37, 38, 39, 45 and 128.
This means that persons or companies cannot freely provide investment services in Turkey without proper authorization. Licensing is a key investor protection tool. It ensures that investment services are provided by institutions subject to capital adequacy, operational standards, internal control, client protection and regulatory supervision.
Unauthorized investment services may result in serious consequences. In a 2023 announcement, the CMB warned investors about unauthorized leveraged transactions and stated that leveraged transactions for investors residing in Turkey must be conducted only through institutions authorized by the Board. The announcement also noted that unauthorized capital market activity under Article 109 of Law No. 6362 may lead to imprisonment and judicial fines.
Investment Advice, Social Media and Online Platforms
Investment advice is one of the most sensitive areas of Turkish capital market regulation. In the digital age, investment recommendations are often shared through social media platforms, messaging groups, video channels and online communities. However, capital market legislation distinguishes between general financial commentary and regulated investment advisory activity.
A person who provides personalized investment recommendations, directs investors toward specific securities or creates a commercial advisory structure may fall within the scope of regulated investment services. A simple disclaimer such as “this is not investment advice” may not be sufficient if the actual content and conduct amount to unauthorized investment advice.
The CMB has warned that social media groups and communication channels may be used to manipulate investors. In its 2020 press release, the Board stated that certain groups on platforms such as Facebook, Twitter, WhatsApp and Telegram were being used for activities aimed at manipulating and victimizing investors, including by persons who did not have authorization to provide investment advisory or similar capital market activities.
Therefore, influencers, analysts, financial educators, Telegram group administrators and online commentators should be cautious. The legal risk is not limited to regulatory fines; depending on the content and consequences, unauthorized investment advice, market manipulation or fraud allegations may arise.
Market Abuse: Manipulation and Insider Trading
Market abuse rules are essential for protecting the integrity of Turkish capital markets. Capital Markets Law No. 6362 regulates manipulation and other forms of unlawful market conduct. Market manipulation may be transaction-based or information-based.
Transaction-based manipulation may involve purchases, sales, orders, order cancellations or account activities intended to create a false or misleading impression regarding prices, price changes, supply or demand. Information-based manipulation may involve false, misleading or deceptive information, rumors, comments or reports intended to influence the price or value of capital market instruments or investors’ decisions.
The CMB’s announcement on information-based market manipulation under Capital Markets Law No. 6362 explains that Article 107/2 addresses misleading, false or deceptive information, rumors, news or reports prepared or disseminated with the intention of influencing the value or price of capital market instruments or investors’ decisions.
Insider trading is another major concern. Persons who possess non-public, price-sensitive information due to their position, profession, relationship or access must not use that information unlawfully. Insider trading undermines equality among investors and damages confidence in the market.
Investor Protection Under Law No. 6362
Investor protection is one of the main purposes of Capital Markets Law No. 6362. The law protects investors through prospectus rules, public disclosure obligations, licensing requirements, supervision of capital market institutions, market abuse prohibitions, custody rules, corporate governance standards and enforcement powers of the CMB.
However, investor protection does not mean that every investment loss is compensable. Capital markets inherently involve risk. Share prices may fall, bonds may default, investment funds may lose value and market conditions may change. The law protects investors against unlawful conduct, misleading information, unauthorized services and unfair market practices; it does not guarantee profit.
For investors, the most important practical step is to work with authorized institutions and rely on official disclosures rather than rumors, social media claims or unlicensed advisors. The CMB has specifically advised investors to make investment decisions with the help of professionals and institutions licensed for investment advice and portfolio management in accordance with Board regulations.
Liability of Issuers, Directors and Intermediaries
Capital Markets Law No. 6362 creates liability risks for issuers, directors, managers, board members, auditors, intermediary institutions and other responsible persons. Liability may arise from misleading prospectuses, false financial reports, incomplete public disclosures, unauthorized offerings, market abuse, insider trading, breach of corporate governance obligations or unauthorized investment services.
Directors of public companies must act carefully when approving financial statements, prospectuses, investor presentations and public disclosures. A disclosure that is technically accurate but incomplete may still mislead investors. Similarly, overly optimistic projections without proper risk disclosure may expose the company and its directors to liability.
Intermediary institutions must also comply with professional standards. They must properly document client instructions, risk notifications, suitability assessments, order records, conflicts of interest and communications. In capital market disputes, documentary evidence is often decisive.
Crypto Assets and Recent Amendments
Crypto asset regulation has become one of the most important developments in Turkish capital market law. Law No. 7518, published in the Official Gazette on 2 July 2024, amended Capital Markets Law No. 6362 and brought crypto asset service providers operating or intending to operate in Turkey under the regulatory and supervisory authority of the CMB.
According to the CMB’s announcement, activities such as crypto asset trading, exchange, transfer, custody services and the custody or management of wallets or private keys may fall within the scope of the law when performed as a regular occupation, commercial activity or professional activity. The announcement also states that entities carrying out crypto asset service provider activities as of 2 July 2024 were required to submit declarations within the prescribed period.
The CMB later clarified that being included in the “List of Those in Operation” does not mean that the relevant entity has been authorized by the Board; such entities must separately apply for authorization after the secondary legislation enters into force.
This development is highly significant for crypto exchanges, wallet providers, custody service providers, fintech companies, token projects and foreign platforms targeting Turkish users. Crypto asset businesses must now assess licensing, custody, customer asset protection, internal control, information systems, advertising, reporting and cross-border service risks under Turkish capital market legislation.
Foreign Investors and Cross-Border Offerings
Foreign investors may participate in Turkish capital markets through listed shares, debt instruments, investment funds, derivatives, public offerings, private placements and strategic acquisitions. However, foreign investors and foreign financial institutions must consider Turkish capital market rules, tax law, foreign exchange regulations, banking law, anti-money laundering obligations and corporate law.
Cross-border offerings require particular attention. A foreign issuer may assume that a securities offering outside Turkey is not subject to Turkish law. However, if Turkish residents are targeted through marketing, roadshows, Turkish-language materials, local intermediaries, digital advertising or online platforms, Turkish capital market rules may become relevant.
Foreign financial institutions should therefore obtain Turkish legal advice before offering securities, funds, derivatives, structured products, leveraged products or crypto-related services to investors residing in Turkey.
Capital Market Disputes in Turkey
Capital market disputes may arise between investors and investment institutions, shareholders and public companies, issuers and investors, or regulators and market participants. Common disputes include unauthorized transactions, unsuitable investment products, portfolio management losses, misleading public offerings, defective prospectuses, market manipulation, insider trading, disclosure violations and unauthorized investment services.
The appropriate legal route depends on the nature of the dispute. Some matters may require a complaint to the CMB. Others may involve civil litigation, commercial lawsuits, criminal complaints, arbitration or administrative proceedings. A regulatory complaint may lead to supervision or sanctions, but compensation usually requires a separate legal claim unless a specific compensation mechanism applies.
Evidence is critical in capital market disputes. Account statements, order records, call recordings, risk notification forms, prospectuses, public disclosures, investor correspondence, expert reports and price movement analysis may determine the outcome of the case.
Practical Compliance Recommendations
Companies, investors and financial institutions should approach Turkish capital markets with a proactive compliance strategy. Legal review should begin before the transaction, not after a regulatory warning or investor complaint.
Companies preparing for public offerings should review their corporate records, financial statements, litigation risks, tax obligations, related-party transactions, material contracts, intellectual property rights and governance structure. Public companies should maintain disclosure procedures, insider information policies and investor relations systems.
Investment institutions should ensure that their licenses cover their actual services. They should document client communications, risk disclosures, suitability assessments, conflicts of interest and order execution procedures. Digital platforms should also review cybersecurity, personal data protection, online marketing and remote onboarding processes.
Crypto asset service providers must pay special attention to the post-2024 framework. Businesses operating in crypto trading, transfer, custody or wallet management should not assume that previous market practice remains sufficient. The amended Capital Markets Law No. 6362 and CMB secondary legislation must be analyzed carefully.
Conclusion
Capital Markets Law No. 6362 is the main legal framework for Turkish capital markets. It governs capital market instruments, public offerings, issuers, public companies, investment services, market institutions, disclosure duties, corporate governance, investor protection, market abuse and crypto asset service providers.
The law is built on transparency, supervision, market integrity, investor protection and accountability. These principles are essential because capital markets cannot function properly without trust. Investors need accurate information, companies need reliable financing channels, and financial institutions need clear regulatory standards.
For companies, compliance with Capital Markets Law No. 6362 is essential before any public offering, share issuance, debt instrument issuance or capital market transaction. For investors, the law provides protection against unauthorized services, misleading disclosures and market abuse. For financial institutions and fintech businesses, the law establishes licensing, operational and conduct obligations. For foreign investors, it provides the legal framework for participating in Turkish capital markets while requiring careful attention to cross-border compliance.
In conclusion, Capital Markets Law No. 6362 is not merely a technical statute. It is the legal foundation of trust, transparency and investor protection in Turkish capital markets. Any company, investor or institution dealing with Turkish capital markets should obtain professional legal advice before taking action, especially in public offerings, investment services, crypto asset activities, disclosure matters, market abuse investigations and cross-border financial transactions.
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