{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/state-street/main/json-schema/state-street-position-schema.json",
  "title": "Position",
  "description": "Schema for a State Street Alpha portfolio position",
  "type": "object",
  "properties": {
    "securityId": {
      "type": "string",
      "description": "Unique security identifier"
    },
    "securityIdType": {
      "type": "string",
      "description": "Security identifier type",
      "enum": ["ISIN", "CUSIP", "SEDOL", "TICKER"]
    },
    "securityName": {
      "type": "string",
      "description": "Security name"
    },
    "assetClass": {
      "type": "string",
      "description": "Asset class classification",
      "enum": ["EQUITY", "FIXED_INCOME", "CASH", "DERIVATIVES", "ALTERNATIVES", "REAL_ESTATE"]
    },
    "quantity": {
      "type": "number",
      "description": "Number of shares or units held"
    },
    "marketValue": {
      "type": "number",
      "description": "Current market value in base currency"
    },
    "price": {
      "type": "number",
      "description": "Current price per unit",
      "minimum": 0
    },
    "currency": {
      "type": "string",
      "description": "Security local currency",
      "pattern": "^[A-Z]{3}$"
    },
    "costBasis": {
      "type": "number",
      "description": "Total cost basis"
    },
    "unrealizedGainLoss": {
      "type": "number",
      "description": "Unrealized gain or loss (can be negative)"
    },
    "weight": {
      "type": "number",
      "description": "Portfolio weight as a decimal",
      "minimum": 0,
      "maximum": 1
    }
  },
  "required": ["securityId", "securityIdType", "securityName", "assetClass", "quantity", "marketValue"]
}