What A Broker Actually Does With Your Order

An order to buy shares travels further than most people expect. Between the instruction and the confirmation sits a routing process that determines the price actually received.

The broker is an intermediary, not the market

A retail investor cannot deal directly on an exchange. Membership is restricted to firms meeting capital and operational requirements, so orders reach the market through one of them.

The broker takes the instruction, checks that funds or holdings are available, and passes it onward. It is acting as an agent in that sequence rather than as the buyer.

This is why brokers publish execution policies. The document describes how they decide where to send orders and what they are trying to achieve when they do.

Orders can go to several destinations

A single security may trade on its primary exchange, on alternative trading venues and with firms that deal on their own account. Each may quote a different price at a given moment.

Some brokers route to a market maker that guarantees to deal in a defined size, which provides certainty of execution for orders that might otherwise wait.

Others send orders to venues where they may interact with other participants directly. The choice affects both the price and how quickly the order completes.

Best execution is a defined obligation

Regulatory regimes in many jurisdictions require firms to take sufficient steps to obtain the best available result for clients, considering price, cost, speed and likelihood of completion.

Best does not mean the single best price in every instance. It refers to a process the firm must follow and be able to demonstrate.

The specifics of these obligations, and the disclosures required, vary between regimes and change over time, so the firm's own policy is the applicable description.

Aggregation and timing affect the price

Brokers may combine several client orders into one instruction, which can improve the price for smaller orders but means individual timing is not fully controlled.

Some services execute at fixed points during the day rather than immediately, which reduces cost and gives up the ability to choose the moment of dealing.

Understanding which model applies explains why a price differs from the one displayed when the instruction was given.

Settlement and custody follow separately

Execution establishes the trade, but ownership records update afterwards through the settlement process, which takes a defined number of business days.

The holding is usually recorded in a nominee arrangement, where the broker's nominee company is the registered holder and the client holds the beneficial interest.

How client assets are segregated and what protections apply if a firm fails are governed by rules that differ by jurisdiction, and the firm's terms set out the specific arrangements.