Broker-Dealers and Market Makers

Broker-dealers and market makers are market intermediaries that connect clients to securities markets, execute or route orders, quote prices, commit capital, or provide brokerage and dealer services. This branch helps readers distinguish client-facing brokerage from dealer capacity, market making, exchange membership, and broader market-intermediary roles.

Use these pages when a trade confirmation, quote, account agreement, fee schedule, or market-structure discussion depends on who acted for the client, who acted for its own account, who supplied liquidity, and what access or membership rights controlled the transaction.

What This Branch Covers

Decision Lens

Start with the record that names the intermediary: account agreement, order ticket, trade confirmation, quote, disclosure, membership record, or fee schedule. Then identify whether the firm acted as agent, principal, market maker, adviser, exchange member, or service provider.

Evaluation Checklist

• Identify the intermediary, capacity, venue, account, product, and fee or spread.
• Separate brokerage agency service from dealer inventory risk and market-making quotes.
• Check whether the firm had exchange membership, clearing access, or another access route.
• Review conflicts, compensation, routing, custody, and clearing evidence before interpreting outcomes.
• Treat regulatory, fiduciary, suitability, tax, and legal conclusions as professional-advice areas.

Common Mistakes

• Treating every broker as a market maker.
• Ignoring whether a firm acted as agent or principal.
• Comparing fees without considering spreads, routing, custody, and execution quality.
• Assuming exchange membership, clearing access, and customer-facing brokerage are the same role.

In this section

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