{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Company",
  "description": "Schema for a company entity",
  "type": "object",
  "properties": {
    "id": { "type": "string", "description": "Unique identifier (e.g., ticker symbol)" },
    "name": { "type": "string", "description": "Name of the company" },
    "industryId": { "type": "string", "description": "Identifier of the industry the company belongs to" },
    "ownershipStructure": { "type": "string" },
    "corporateStructure": { "type": "string" },
    "financials": {
      "type": "object",
      "properties": {
        "revenue_mn_usd": { "type": ["number", "null"] },
        "pe_ratio": { "type": ["number", "null"] },
        "debt_to_equity_ratio": { "type": ["number", "null"] }
      }
    },
    "tradingLevels": {
      "type": "object",
      "properties": {
        "price": { "type": ["number", "null"] },
        "volume": { "type": ["integer", "null"] },
        "volatility": { "type": ["number", "null"] },
        "timestamp": { "type": ["string", "null"], "format": "date-time" }
      }
    }
  },
  "required": ["id", "name", "industryId"]
}