What Is Crypto Market Structure? A Guide to How Crypto Markets Work

Crypto market structure refers to the framework of participants, platforms, rules, and infrastructure that comprise the digital asset markets. It includes crypto exchanges, brokers, custodians, market makers, token issuers, investors, and the regulators that oversee them. When lawmakers and analysts talk about “crypto market structure,” they are usually talking about who is allowed to do what in the digital asset economy and which rules apply at each step.

In traditional finance, these questions were settled decades ago through laws such as the Securities Act of 1933, the Securities Exchange Act of 1934, and the Commodity Exchange Act of 1936. In crypto, they are still being worked out, which is why “market structure” has become one of the most common phrases in U.S. crypto policy.

💡 Key Takeaway: Crypto market structure is the system of participants, platforms, infrastructure, and rules that make digital asset markets function. Most current policy debates focus on which existing rules apply and what new rules are needed.

Why Does Market Structure Matter?

Market structure determines who is protected, how prices are set, and whether large institutions can participate. It is important for several major reasons:

• Investor Protection: Clear rules about disclosure, custody, and conflicts of interest reduce the risk that retail investors lose money to fraud or hidden conflicts. The collapse of FTX in 2022 is the example regulators most often cite when explaining why these rules matter.
• Price Transparency: When trading is fragmented across hundreds of unregulated venues, it is harder for investors to know whether a quoted price reflects real supply and demand. Standardized reporting and consistent rules for client orders reduce that fragmentation.
• Fair Competition: Without clear rules, established firms pull out because compliance is uncertain, or smaller firms struggle to compete against unregulated rivals.
• Liquidity: Market structure determines whether liquidity is deep enough for institutional capital. Banks, asset managers, and pension funds will not allocate significant capital to a market that cannot absorb large orders.

Who Are the Main Participants in Crypto Markets?

Crypto markets involve a wider mix of participants than most beginners realize. 

Retail Investors

Retail investors are individual buyers and sellers who trade through consumer apps, brokerages, or self-custody wallets. They are the largest group by headcount and the group most regulators say market structure rules are designed to protect.

Institutional Investors

Institutional investors include hedge funds, asset managers, family offices, pension funds, endowments, corporate treasuries, and registered investment advisors. They typically trade through prime brokers, regulated exchanges, or ETFs because internal policies require regulated custody and standardized reporting.

Institutional participation grew sharply after spot Bitcoin and spot Ethereum ETFs launched in 2024 and spot XRP ETFs launched in late 2025.

Crypto Exchanges

Crypto exchanges are the venues where most trading occurs. Centralized exchanges such as Coinbase and Binance match buyers and sellers on internal order books and hold customer assets. Decentralized exchanges such as Uniswap match orders through smart contracts on a blockchain and do not hold custody of user funds.

Market Makers

Market makers are firms that continuously post buy and sell quotes on exchanges. Without market makers, traders would have to wait for a matching counterparty before any trade could occur. With them, a retail trader can sell instantly because the market maker is always willing to buy, then manages inventory and hedges risk in other venues.

They commit to buying at a slightly lower price (the bid) and selling at a slightly higher price (the ask), and the gap between those quotes is the bid-ask spread. Major crypto market makers include Wintermute, GSR, Jump Trading, Cumberland, and B2C2. Many operate on both centralized and decentralized venues.

Custodians

Custodians are responsible for safely storing digital assets on behalf of clients. A qualified custodian is generally a bank, trust company, or other regulated financial institution that meets specific standards for asset segregation, audits, and key management. Custodians typically hold the majority of customer assets in cold storage, with private keys kept offline. A smaller portion is held in hot wallets to support withdrawals.

Their role is foundational to institutional participation because most large investors are required by internal policy or by regulation to hold assets with a qualified custodian rather than self-custody. Spot crypto ETFs and most institutional investors rely on qualified custodians such as Coinbase Custody, BitGo, Anchorage Digital, and Fidelity Digital Assets.

Token Issuers

Token issuers are the projects, foundations, or companies that create and distribute digital assets. Issuance can be centralized, where a company mints and sells tokens, or fully decentralized, where a protocol issues tokens algorithmically. Regulatory treatment often depends on this distinction.

Regulators

Regulators set and enforce the rules. In the United States, the main agencies are the SEC, the CFTC, the Office of the Comptroller of the Currency (OCC), the FDIC, the Federal Reserve, and the Financial Crimes Enforcement Network (FinCEN). State-level regulators, especially the New York Department of Financial Services, also play a significant role.

How Crypto Exchanges Fit Into Market Structure

Exchanges sit at the center of crypto market structure because most trading volume passes through them.

A centralized exchange operates a private order book. Users deposit funds into accounts held by the exchange and rely on it to match trades and settle balances. Centralized exchanges currently handle the large majority of global crypto trading volume.

Expand Chart

A decentralized exchange operates entirely on a blockchain through smart contracts. Users connect a self-custody wallet, swap tokens directly against an onchain pool, and never hand over custody. The most common design is the automated market maker (AMM) model, where liquidity providers deposit token pairs and earn fees when others trade against the pool.

	Centralized Exchange (CEX)	Decentralized Exchange (DEX)
Custody	Exchange holds user funds	User retains custody
Order matching	Internal order book	Smart contract or AMM pool
Identity checks	KYC required	Typically none
Trading pairs	Curated by exchange	Permissionless, often any token
Regulation	Subject to securities, money transmission, and AML rules	Limited direct regulation today
Typical users	Retail and institutional	DeFi-native users and arbitrageurs
Settlement	On internal ledger, then onchain on withdrawal	Onchain at trade time

Both types matter for market structure debates. Centralized exchanges are the focus of most regulatory rules because they hold customer assets. Decentralized exchanges raise harder questions about who, if anyone, is the regulated party when a protocol runs autonomously as code on a blockchain.

How Crypto Market Structure Differs From Traditional Finance

Crypto markets share some features with traditional financial markets but differ in important ways.

	Traditional Finance	Crypto Markets
Trading hours	Limited (typically 9:30 a.m. to 4:00 p.m. ET)	24/7
Settlement	T+1 for U.S. equities (one business day)	Near-instant on most blockchains
Custody model	Centralized depositories	Mix of self-custody, exchange custody, and qualified custodians
Asset identity	Standardized CUSIP and ISIN identifiers	Smart contract addresses and chain identifiers
Order matching	Regulated exchanges (NYSE, Nasdaq)	Centralized exchanges, DEXs, OTC desks
Investor protection	SIPC, FDIC, Reg Best Interest, audited disclosures	Varies by venue and jurisdiction
Cross-border access	Restricted by country of issuance	Globally accessible by default
Issuance	Underwriters and exchange listing	Smart contract deployment
Settlement intermediaries	Clearing houses, transfer agents	Blockchain consensus

Faster settlement, global access, and around-the-clock trading lower barriers for users. However, the absence of unified standards creates more variation in investor protection.

The Regulatory Challenges of Crypto Market Structure

Regulators face several recurring challenges when applying existing law to crypto. The major points of contention include:

• Asset Classification: The same token can look like a security in one transaction and a commodity in another. U.S. law treats those categories very differently.
• Cross-border Activity: Most major crypto exchanges serve users in many jurisdictions and route trades through entities in different countries. Determining which regulator has authority is not always straightforward.
• Exchange Oversight: Custody rules were written for stocks, bonds, and physical commodities. Applying them to assets controlled by cryptographic keys requires new interpretations of these rules.
• Decentralized Intermediaries: Investor protection assumes identifiable intermediaries. When trades execute on a decentralized protocol with no operator, there is no clear party to hold accountable.

SEC vs CFTC: Why Market Structure Is a Regulatory Debate

Two U.S. agencies share most of the responsibility for federal crypto oversight, and the line between them sits at the center of market structure debates.

	SEC	CFTC
Primary mandate	Investor protection and securities markets	Derivatives markets and price-discovery integrity
Governing statutes	Securities Act (1933), Exchange Act (1934), Investment Company Act (1940)	Commodity Exchange Act (1936)
Regulated entities	Broker-dealers, exchanges, investment advisors, funds	Futures commission merchants, derivatives exchanges, swap dealers
Crypto authority	Tokens that meet the definition of a security; ETFs holding crypto	Spot fraud and manipulation; futures and derivatives on digital commodities
Enforcement style	Disclosure-based, registration-driven	Market integrity-based, anti-manipulation-driven

In March 2026, the SEC and CFTC issued a joint interpretation grouping crypto assets into five categories: digital commodities, digital collectibles, digital tools, stablecoins, and digital securities. The agencies designated sixteen major tokens as digital commodities, including Bitcoin, Ethereum, XRP, and Solana, among others. Digital commodities fall primarily under CFTC jurisdiction for spot market integrity, while digital securities remain under SEC jurisdiction.

Gaps remain after that guidance. Spot trading of digital commodities is currently only addressed by the CFTC through anti-fraud and anti-manipulation authority, and there is no comprehensive federal framework for registering and supervising spot crypto exchanges. Closing that gap is the central goal of market structure legislation.

Why Institutions Care About Market Structure

For institutional investors, market structure dictates whether they can participate at all.

Compliance teams need clear rules to map crypto activity onto existing reporting and disclosure requirements. Risk teams need standardized custody, settlement, and counterparty frameworks before approving a new asset class. Asset managers need regulated wrappers, such as ETFs, to offer digital asset exposure to clients.

Custody is often the binding constraint. Many institutional mandates explicitly require qualified custodians, so an institution cannot buy a token unless a custodian is willing to support it. Rules that clarify custody obligations directly affect what institutions can hold.

Regulatory certainty also matters for board approval. A clear federal framework lowers perceived legal risk, which is one reason institutional participation has accelerated after each major piece of regulatory clarification.

How the CLARITY Act Could Reshape Crypto Market Structure

The Digital Asset Market Clarity Act, commonly called the CLARITY Act, is the leading market structure bill in the current U.S. Congress. The House passed its version in 2025. The Senate Banking Committee progressed its version on May 14, 2026, by a 15-9 vote. The bill still needs full Senate approval, which requires 60 votes, and reconciliation with the House version before it can be sent to the President.

If enacted close to its current form, the CLARITY Act would:

• Formally define a “digital commodity” in U.S. law.
• Place spot trading of digital commodities primarily under CFTC oversight.
• Create a federal registration framework for digital commodity exchanges, brokers, and dealers.
• Set custody, disclosure, and capital standards for those registrants.
• Establish a process for transitioning existing tokens between SEC and CFTC oversight based on objective criteria.

As of mid-2026, the bill has not been enacted. Future amendments may change specific provisions.

💡 Key Takeaway: The CLARITY Act would provide the first comprehensive federal framework for spot crypto markets in the United States, although the specifics are still being decided.

What Market Structure Means for Bitcoin, Ethereum and XRP

The three largest non-stablecoin digital assets each have their own market structure profile.

	Issuer history	Primary U.S. classification	ETF status
Bitcoin	Pseudonymous origin, no central issuer	Digital commodity: 2015 designation	Spot ETFs since January 2024
Ethereum	Foundation-led launch in 2015	Digital commodity: March 2026 guidance	Spot ETFs since mid-2024
XRP	Issued by Ripple Labs	Digital commodity: March 2026 guidance	Spot ETFs since late 2025

The Future of Crypto Market Structure

A few trends are likely to define the next phase of crypto market structure, regardless of how any single piece of legislation turns out.

• U.S. regulation is shifting from enforcement-by-case to written rulemaking. The SEC-CFTC joint interpretation in March 2026, GENIUS Act stablecoin framework, and ongoing market structure legislation all reflect that shift.
• Money market funds, treasuries, and equities are increasingly being issued or mirrored on blockchains as RWA tokens, forcing traditional rules into crypto-native infrastructure.
• Stablecoins are now a regulated category of their own. Under the GENIUS Act, payment stablecoins issued in the United States are subject to reserve, redemption, and supervisory requirements administered jointly by federal banking regulators and the Treasury.
• Institutional adoption continues to grow through ETFs, prime brokerage services, and integrations between banks and crypto custodians. Each of those channels assumes a stable rulebook for crypto market participants.

Beyond the U.S., global standards are converging slowly. The European Union’s Markets in Crypto-Assets (MiCA) regulation, in force since 2024, sets one model. The United Kingdom, Singapore, Hong Kong, and the United Arab Emirates have each implemented their own frameworks. International bodies such as the BIS, the Financial Stability Board, and the OECD continue to push for greater alignment.

Frequently Asked Questions

1. What is crypto market structure?

Crypto market structure is the framework of participants, platforms, infrastructure, and rules that allow digital assets to be issued, traded, stored, and overseen.

2. Why does crypto market structure matter?

Market structure shapes investor protection, price discovery, competition, liquidity, and the ability of institutions to participate.

3. Who regulates crypto markets in the United States?

The SEC and CFTC are the two main federal regulators, sharing authority depending on whether a token is classified as a security or a digital commodity. Other agencies, including the OCC, FDIC, Federal Reserve, FinCEN, and state regulators, also play roles.

4. What role do exchanges play?

Crypto exchanges match buyers and sellers. Centralized exchanges hold customer assets and operate internal order books. Decentralized exchanges run on smart contracts and do not custody user funds.

5. How is crypto market structure different from traditional finance?

Crypto markets trade around the clock, settle directly on blockchains, allow self-custody, and are global by default. Traditional markets have fixed hours, multi-day settlement, centralized custody, and country-specific access rules.

6. How does market structure affect everyday investors?

It affects which platforms are safe to use, which assets are available, what disclosures are required, and how investor losses are addressed when something goes wrong.

7. What is the CLARITY Act?

The CLARITY Act, formally the Digital Asset Market Clarity Act, is a U.S. bill that would define digital commodities, place spot digital commodity trading primarily under CFTC oversight, and create a federal registration framework for digital commodity exchanges and intermediaries. As of mid-2026, the bill has passed the House and cleared the Senate Banking Committee but has not been enacted.

8. What is a digital commodity?

A digital commodity is a category of crypto asset, defined in proposed legislation and in March 2026 joint SEC-CFTC guidance, that is treated more like a commodity than a security. Bitcoin, Ethereum, and XRP are among the assets designated as digital commodities under that guidance.

9. What is the GENIUS Act?

The GENIUS Act is the federal payment stablecoin law signed in July 2025. It requires stablecoins to be backed one-to-one by U.S. dollars or other low-risk reserves and is supervised jointly by federal banking regulators and the Treasury.

10. Are decentralized exchanges regulated?

Direct regulation of decentralized exchanges is limited because they typically operate as autonomous smart contracts with no central operator. Regulators and lawmakers continue to debate how, and whether, existing rules should apply to them.

Disclaimer: This article was produced with the assistance of OpenAI’s ChatGPT/xAI’s Grok and reviewed and edited by our editorial team.

© 2026 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.