> This page is for Taurus PRIME. > For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://taurushq.ferndocs.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://taurushq.ferndocs.com/_mcp/server. # Trading # Trading Domain The trading domain handles order management, trade execution, and OTC workflows. ## Trading Venues | Venue | Description | Order Types | | ------------ | -------------------------------------------------------------------- | ------------------------------------------------------------------------------- | | **Exchange** | Central limit order book | Limit, Market | | **OTC** | Request-for-quote with external dealers (PRIME acts as intermediary) | [RFQ](/prime/docs/api-doma-trad-rfq), Limit, Market, TWAP, Stop\*, Stop Limit\* | \*Stop and Stop Limit orders are created by adding `stopParams` to a Limit or Market order. See [OTC Trading](/prime/docs/api-usec-05-otc-trading#stop-order-example). ## Order Lifecycle ``` PENDING → OPEN → [PARTIALLY_FILLED] → FILLED │ │ └─────────└─→ CANCELLED ``` ## Key Concepts ### Pair Constraints Every order must respect the pair's constraints: | Constraint | Description | | ------------------ | -------------------------- | | `minOrderQuantity` | Minimum order size | | `maxOrderQuantity` | Maximum order size | | `quantityTicks` | Minimum quantity increment | | `priceTicks` | Minimum price increment | ### Side | Value | Description | | ----------- | ------------------------ | | `SIDE_BUY` | Purchase base instrument | | `SIDE_SELL` | Sell base instrument | --- ## Exchange Trading Exchange trading uses a central limit order book where orders are matched automatically. ### Exchange Order Types | Value | Description | | ---------------- | -------------------------------------------- | | `TYPE_LIMIT` | Execute at specified price or better | | `TYPE_MARKET` | Execute immediately at best available | | `TYPE_POST_ONLY` | Add liquidity only (rejected if would match) | ### Exchange Time in Force | Value | Description | | ------------------- | ----------------------------- | | `TIME_IN_FORCE_DAY` | Cancel at end of trading day | | `TIME_IN_FORCE_GTC` | Good 'til cancelled | | `TIME_IN_FORCE_IOC` | Immediate or cancel | | `TIME_IN_FORCE_FOK` | Fill or kill (all or nothing) | ### Exchange Endpoints All endpoints below are relative to `/api/rest/v1`. | Endpoint | Method | Description | | -------------------------------------------------------- | ------ | ---------------------------------------------------- | | `/orders` | POST | Create order | | `/orders/by-sub-account/{subAccountId}` | GET | List orders for sub-account | | `/orders/by-sub-account/{subAccountId}/{id}` | GET | Order details | | `/orders/by-sub-account/{subAccountId}/{orderId}` | DELETE | Cancel order | | `/orders/by-sub-account/{subAccountId}/by-pair/{pairId}` | DELETE | Cancel all orders for pair | | `/trades` | GET | Trade history (filter by `subAccountId` query param) | | `/trades/{id}` | GET | Get specific trade by ID | | `/marketplace/trades` | GET | Anonymized public trades | ### Exchange Order Request Schema > **Note** > > **Exchange Orders Only** > > The following request schema applies to Exchange orders (`POST /orders`). For OTC order schemas, see [OTC Trading](/prime/docs/api-usec-05-otc-trading). #### Required Fields | Field | Type | Description | | --------------- | --------- | ---------------------------------------------------------------------------------- | | `clientOrderId` | string | Unique identifier generated by the client (max 36 chars, UUID format recommended) | | `subAccountId` | UUID | Sub-account the order belongs to | | `symbol` | string | Pair symbol (e.g., "BTC/CHF") | | `side` | enum | `SIDE_BUY` or `SIDE_SELL` | | `type` | enum | `TYPE_LIMIT`, `TYPE_MARKET`, or `TYPE_POST_ONLY` | | `quantity` | decimal | Maximum quantity to fill | | `minQuantity` | decimal | Minimum quantity per fill | | `price` | decimal | Limit price (required for LIMIT orders) | | `timeInForce` | enum | `TIME_IN_FORCE_DAY`, `TIME_IN_FORCE_GTC`, `TIME_IN_FORCE_IOC`, `TIME_IN_FORCE_FOK` | | `transactTime` | timestamp | Client transaction time (ISO 8601 format) | #### Order Request Example ```json { "clientOrderId": "9739d2bf-ddb3-4458-ab1f-98eb63279fb0", "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804", "symbol": "BTC/CHF", "side": "SIDE_BUY", "type": "TYPE_LIMIT", "quantity": "1.5", "minQuantity": "0.001", "price": "45000.00", "timeInForce": "TIME_IN_FORCE_DAY", "transactTime": "2024-01-15T10:30:00Z" } ``` ### Dry-Run Mode To validate an order without actually placing it, set `dry: true` in the request: ```json { "clientOrderId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890", "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804", "symbol": "BTC/CHF", "side": "SIDE_BUY", "type": "TYPE_LIMIT", "quantity": "1.5", "minQuantity": "0.001", "price": "45000.00", "timeInForce": "TIME_IN_FORCE_DAY", "transactTime": "2024-01-15T10:30:00Z", "dry": true } ``` Dry-run mode performs all validation checks (balance, constraints, permissions) without creating the order. Use this to verify orders before submission. ### Exchange Order Response Schema When creating or retrieving an order, the response contains the full order object: ```json { "result": { "id": "2312bb39-a624-4785-aaf7-49b09034b560", "subAccountId": "7376524e-6b6b-4137-9719-7e07a7709804", "clientAccountId": "8aee564e-2eb1-4a57-b686-05476c2cfd93", "userId": "c43f7356-ad91-48bf-b647-96aa3ec59cf2", "pairId": "7a3fae7e-5a17-4931-821c-54b021f643da", "clientOrderId": "my-order-123", "side": "SIDE_BUY", "quantity": "1.5", "minQuantity": "0.001", "executedQuantity": "0", "reservedFunds": "67500.00", "price": "45000.00", "status": "STATUS_NEW", "type": "TYPE_LIMIT", "symbol": "BTC/CHF", "timeInForce": "TIME_IN_FORCE_DAY", "transactTime": "2024-01-15T10:30:00Z", "createdAt": "2024-01-15T10:30:00Z", "updatedAt": "2024-01-15T10:30:00Z" } } ``` ### Order Fields | Field | Type | Description | | ------------------------ | --------- | ------------------------------------------------------ | | `id` | UUID | Unique order identifier | | `subAccountId` | UUID | Sub-account the order belongs to | | `clientAccountId` | UUID | Client account ID | | `userId` | UUID | User who created the order | | `pairId` | UUID | Trading pair ID | | `clientOrderId` | string | Client-provided unique identifier | | `side` | enum | `SIDE_BUY` or `SIDE_SELL` | | `quantity` | decimal | Maximum quantity to fill | | `minQuantity` | decimal | Minimum quantity per fill | | `executedQuantity` | decimal | Quantity already executed | | `reservedFunds` | decimal | Funds reserved for the order (null if not applicable) | | `price` | decimal | Limit price (for LIMIT orders) | | `status` | enum | Order status (see below) | | `type` | enum | `TYPE_LIMIT`, `TYPE_MARKET`, `TYPE_POST_ONLY` | | `symbol` | string | Pair symbol (may be empty for legacy orders) | | `timeInForce` | enum | Order duration policy | | `clientCreationTime` | timestamp | Client-side creation time | | `transactTime` | timestamp | Server transaction time (null if not yet processed) | | `createdAt` | timestamp | Order creation time | | `updatedAt` | timestamp | Last update time | | `averagePrice` | decimal | Average fill price (null until partially/fully filled) | | `rejectionCause` | string | Reason for rejection (empty if not rejected) | | `reservedTransactionFee` | decimal | Reserved transaction fee (null if not applicable) | | `reservedSwissStampTax` | decimal | Reserved Swiss stamp tax (null if not applicable) | | `settleInstrumentId` | UUID | Settlement instrument ID (null if not applicable) | ### Order Status Values | Status | Description | | ------------------------- | ------------------------------------ | | `STATUS_PENDING` | Order submitted, awaiting processing | | `STATUS_NEW` | Order accepted, on order book | | `STATUS_PARTIALLY_FILLED` | Some quantity executed | | `STATUS_FILLED` | Fully executed | | `STATUS_CANCELED` | Canceled by user or system | | `STATUS_REJECTED` | Rejected (see `rejectionCause`) | | `STATUS_REPLACED` | Replaced by another order | ### Time in Force Values | Value | Description | | ------------------- | ----------------------------- | | `TIME_IN_FORCE_DAY` | Cancel at end of trading day | | `TIME_IN_FORCE_GTC` | Good 'til cancelled | | `TIME_IN_FORCE_IOC` | Immediate or cancel | | `TIME_IN_FORCE_FOK` | Fill or kill (all or nothing) | ### Exchange Order List Filtering When listing orders via `GET /orders/by-sub-account/{subAccountId}`, the response is paginated. See [Making Requests](/prime/docs/api-gett-making-requests#pagination) for pagination details. #### Available Filters | Filter | Description | | ---------------- | -------------------------- | | `status` | Filter by order status | | `type` | Filter by order type | | `time_in_force` | Filter by time in force | | `pair_id` | Filter by trading pair | | `created_after` | Orders created after date | | `created_before` | Orders created before date | #### Sorting | Sort Key | Description | | ----------------- | ---------------------- | | `created_at-asc` | Oldest first | | `created_at-desc` | Newest first (default) | --- ## OTC Trading OTC (Over-the-Counter) trading enables trades with external dealers where PRIME acts as an intermediary. OTC trading offers two distinct approaches: | Method | Protocol | Use Case | | --------------------------- | --------- | --------------------------------------------------- | | **RFQ (Request for Quote)** | WebSocket | Real-time quote negotiation with dealers | | **OTC Orders** | REST | Direct limit, market, TWAP, or stop order placement | ### OTC Trading Methods #### RFQ (Request for Quote) RFQ is a real-time WebSocket workflow for negotiating quotes with external dealers. The investor requests quotes, dealers respond with prices, and the investor can accept a quote to execute the trade. For complete RFQ documentation including WebSocket message formats and workflows, see [RFQ (Request for Quote)](/prime/docs/api-doma-trad-rfq). > **Warning** > > **Field Naming Convention** > > RFQ WebSocket messages use **PascalCase** field names (`RfqID`, `Quantity`, `Token`), while OTC REST endpoints use **camelCase** (`pairId`, `quantity`). #### OTC Orders OTC Orders use the REST API for placing orders that execute with external dealers. Unlike Exchange orders, OTC orders support additional order types like TWAP (Time-Weighted Average Price) and can include scheduling parameters. For complete OTC order schemas and workflows, see [OTC Trading Use Case](/prime/docs/api-usec-05-otc-trading). ### OTC Endpoints All endpoints below are relative to `/api/rest/v1`. | Endpoint | Method | Description | | ----------------------------------------------------- | ------ | -------------------- | | `/otc/orders/by-sub-account/{subAccountId}` | GET | List OTC orders | | `/otc/orders/by-sub-account/{subAccountId}/{orderId}` | GET | OTC order details | | `/otc/orders` | POST | Create OTC order | | `/otc/orders/by-sub-account/{subAccountId}/{orderId}` | DELETE | Cancel OTC order | | `/otc/trades/by-sub-account/{subAccountId}` | GET | OTC trades | | `/otc/listings/{pairId}` | GET | OTC listing for pair | | `/quotes/by-sub-account/{subAccountId}` | GET | Accepted RFQ quotes | --- ## Balance Impact When placing orders: 1. **Buy Order**: Quote currency reserved (price × quantity) 2. **Sell Order**: Base currency reserved (quantity) Reserved funds become available again if order is cancelled. ## WebSocket Events ### Exchange WebSocket Topics | Topic | Events | | ------------------------ | ------------------------------------- | | `{id}@subaccount-orders` | Exchange order updates | | `{pair}@trades` | Public trades (Exchange) | | `{pair}@depth@{speed}` | Order book (speed: `100ms`, `1000ms`) | ### OTC WebSocket Topics OTC trading uses WebSocket for the RFQ workflow. See [RFQ (Request for Quote)](/prime/docs/api-doma-trad-rfq) for complete WebSocket message formats. ## Related * [RFQ (Request for Quote)](/prime/docs/api-doma-trad-rfq) - OTC trading via RFQ workflow * [Trading Data Use Case](/prime/docs/api-usec-04-trading-data) * [OTC Trading Use Case](/prime/docs/api-usec-05-otc-trading)