{
  "provider": "Webull OpenAPI (Thailand)",
  "host": "api.webull.co.th",
  "endpoint": "POST /market-data/stocks/bars/list",
  "sdk": "webull-openapi-python-sdk 3.0.0, MarketData.get_batch_history_bar",
  "request": {
    "symbols": [
      "SPY"
    ],
    "category": "US_ETF",
    "timespan": "D",
    "count": 1200,
    "real_time_required": true,
    "trading_sessions": "RTH"
  },
  "paging": "Repeated with end_time = one millisecond before the oldest returned bar until 2005-01-01 was covered. end_time is an SDK 3.0.0 field that the Thailand reference page does not list; the server honoured it on 2026-09-28.",
  "fetchScript": "webull_data.py --fetch --environment production",
  "symbol": "SPY",
  "name": "SPDR S&P 500 ETF Trust",
  "instrumentType": "ETF",
  "priceUnit": "USD per share",
  "portfolioCurrency": "USD",
  "timezone": "America/New_York",
  "retrievedAtUTC": "2026-09-28T09:31:21+00:00",
  "referenceURL": "https://developer.webull.co.th/apis/docs/reference/trade-api/historical-bars",
  "fetchedStart": "2005-01-03",
  "fetchedEnd": "2026-09-25",
  "fetchedBars": 5467,
  "requestedStart": "2005-01-01",
  "evaluationStart": "2006-09-26",
  "evaluationEnd": "2026-09-25",
  "warmupStart": "2005-02-24",
  "warmupBars": 400,
  "evaluationBars": 5031,
  "calendarYears": 19.99726214921287,
  "csvSHA256": "40f364dc3ef010c36ff6ed39186a563a7ff830e086115bd9d1f4ece6c5414e64",
  "adjustment": "Prices as returned by Webull. The SDK documents daily bars as forward-adjusted; the SPY/^GSPC close ratio rises from 0.0694 (2006-09-26) to 0.0996 (2026-09-25), consistent with dividends reinvested in the price series. Volume is in shares."
}