Browse Market Structure

Market Intermediaries

Market-structure terms for intermediaries, information intermediaries, advisers, liquidity providers, and market-access agents.

Market intermediaries are firms or people that stand between issuers, investors, trading venues, information sources, and liquidity. This branch groups intermediary, adviser, information-intermediary, liquidity-provider, hedge-fund-manager, and commission-based advising terms used in market-structure and client-service discussions.

Use these pages when the relevant question is not the trade venue itself but the role of a party that provides access, information, liquidity, advice, management, or transaction support.

What This Branch Covers

TermUse it for
Intermediary and Information IntermediariesMiddle-party and information-channel roles in financial markets.
Liquidity ProviderParties that supply liquidity or quote support to markets.
Registered Investment Adviser (RIA) and Commission-Based AdvisingAdviser and compensation-structure terms that affect client-service context.
Hedge Fund ManagerInvestment-management intermediary context.

Decision Lens

Start with the intermediary’s function and compensation. A liquidity provider, adviser, information intermediary, and fund manager can all influence market outcomes, but they affect decisions through different records and duties.

Evaluation Checklist

  • Identify the intermediary, role, compensation source, client relationship, and market function.
  • Separate information provision, advice, liquidity provision, trade execution, and asset management.
  • Check conflicts, access controls, disclosure, and service agreements before interpreting the role.
  • Use broker-dealer pages when the issue is transaction execution or dealer capacity.
  • Treat adviser registration, fiduciary, and compensation questions as professional-advice areas.

Common Mistakes

  • Treating every intermediary as a broker.
  • Ignoring compensation model when evaluating advice or access.
  • Confusing information intermediaries with investment advisers.
  • Assuming liquidity provision, market making, and asset management are the same function.

In this section

Choose a subsection first. Deeper term pages live inside each subsection, which keeps large topic hubs readable.

Commission-Based Advising

Commission-based advising compensates advisers or representatives through product sales commissions or transaction-based payments.

Hedge Fund Manager

A hedge fund manager oversees a private investment fund's strategy, risk, trading, operations, and investor reporting.

Information Intermediaries

Information intermediaries collect, analyze, verify, or distribute market information that supports investment and trading decisions.

Intermediary

In general, an intermediary is an entity or individual that acts as a go-between for two or more parties to facilitate a transaction or communication.

Liquidity Provider

A liquidity provider supplies bids, offers, or capital to help market participants trade with lower execution friction.

Revised on Sunday, June 21, 2026