Place and manage US equity orders over REST or WebSocket.

Shared conventions

Request and response fields use camelCase. brokerClientId identifies the client account, orderNo is the server-assigned order number, and reference is a caller-supplied identifier (a UUID is generated if omitted when placing an order).

Field	Values
`exchangeCode`	`US`
`bsFlag`	`B` buy; `S` sell
`orderType`	`L` limit; `M` market
`orderValidity`	Day (default), `FAK`, `FOK`, `GTD`, `GTC`

FAK executes immediately and cancels the remainder; FOK executes completely or cancels. GTD requires orderExpiryDate (YYYY-MM-DD). GTC remains valid until cancelled.

Order status	Meaning
`NEW`	Accepted into the order queue
`WA`	Waiting for approval
`PRO`	Sending to the exchange
`Q`	Queued
`PEX`	Partially filled
`FEX`	Fully filled
`CAN`	Cancelled
`REJ`	Rejected

Use Query orders for order records and Query trades for executions. Both are GET endpoints. Order queries return the full result without pagination.