In plain terms — The risk does not follow from the word “broker” in an app. It follows from the legal entity in the contract, the functions that entity performs, where it sends the order, and who holds the cash and instruments.
Broker risk covers vulnerabilities created by reliance on an intermediary: outages, routing or reporting errors, conflicts of interest, financial weakness, restricted access to assets, and problems with complaints or transfers. It does not mean that the broker is always the counterparty or custodian.
Legal form and contract terms take precedence over a commercial label. One firm may combine several functions, but the analysis should still separate them.
Five roles not to confuse
| Role | Function | Exposure to verify |
|---|---|---|
| Broker/intermediary | receives, transmits, or executes an order | authorisation, instructions, routing, conflicts, reporting |
| Trading venue/exchange | organises trading under its rules | access, order types, matching, suspensions, market quality |
| Dealer/counterparty | trades for its own account or owes the contractual performance | credit, collateral, netting, default terms |
| Custodian | safeguards or administers cash and instruments | ownership, segregation, records, sub-custodians, insolvency access |
| CCP | interposes itself in centrally cleared trades | margins, default resources, rules, and infrastructure continuity |
An intermediary may act as agent for one order and principal for another product. In CFTC terminology, an introducing broker solicits or accepts orders but does not accept money or other customer assets to support them, whereas a futures commission merchant may do so. Categories and permissions vary with the applicable regime. Exchange, broker, dealer, and custodian develops this functional map.
Function-based due diligence
| Question | Useful evidence |
|---|---|
| Who is my contracting party? | legal name, country, registration, authority, and licence number checked against an official register |
| Which service do I receive? | contract, execution policy, cost and conflict disclosures, margin terms |
| Where does the order go? | venues and liquidity providers used, possible internalisation, execution report |
| Who is the counterparty? | trade confirmation and product terms, not merely the interface brand |
| Who holds the assets? | account structure, segregation, custodian and sub-custodians, use and transfer rules |
| What happens during a crisis? | complaint, withdrawal or transfer procedures, continuity, communications, and third-party dependencies |
Registration with an authority, segregation, and an investor compensation arrangement reduce particular risks but do not guarantee investment value, execution at a desired price, or full recovery in every event. SIPC, for example, describes limited US protection for missing cash or securities when a member broker-dealer is liquidated; it does not cover market losses and is not a general guarantee of the broker.
Execution, conflicts, and continuity
The SEC explains that a broker may route an order to an exchange, a market maker, or an electronic network, or fill it from the firm's own inventory. The route can affect price, speed, and likelihood of execution. Zero commission, a quoted spread, or labels such as STP and ECN do not by themselves establish execution quality.
Ongoing monitoring can compare confirmations with instructions, slippage, rejects, response times, outages, contract changes, withdrawals, and transfers. Metrics should be read by instrument, order, and market condition; a change is a signal to investigate, not automatic proof of misconduct or insolvency.
An operational alternative is useful only when roles, access, data, instruments, collateral, and procedures are compatible and tested. Splitting cash and positions across intermediaries may reduce concentration but adds cost, transfers, and reconciliation work.
Typical mistake — Assuming that a broker is always both counterparty and custodian, or that a licence removes operational, financial, and client-asset access risk.
Sources
- SEC, Investor.gov — Executing an Order
- CFTC — Futures Commission Merchants and Introducing Brokers
- ESMA — MiFID II, Article 4: Definitions
- ESMA — MiFID II, Article 16: Organisational requirements
- ESMA — EMIR, Article 2: Definitions
- IOSCO — Recommendations Regarding the Protection of Client Assets
- FINRA — BrokerCheck
- SIPC — What SIPC Protects