Thank you for creating Polygon.io. Super easy to use API, beautiful website and documentation, zero-hassle subscription process, and clearly a bright future as a leading financial data provider. That said, I am seeing a number of potential data errors in the 1-minute data, way too high highs and way too low lows, starting with this one in AMC.
Thank you for creating Polygon.io. Super easy to use API, beautiful website and documentation, zero-hassle subscription process, and clearly a bright future as a leading financial data provider. That said, I am seeing a number of potential data errors in the 1-minute data, way too high highs and way too low lows, starting with this one in AMC.
URL https://api.polygon.io/v2/aggs/ticker/AMC/range/1/minute/2023-08-25/2023-08-25?adjusted=false&apiKey= https://api.polygon.io/v2/aggs/ticker/AMC/range/1/minute/1692987600000/1692987600000?adjusted=false&apiKey=
Result Polygon 1-minute data for AMC on 2023-08-25 at 14:20:00 EST: Open: 12.58 High: 13.94 (!) Low: 12.56 Close: 12.61
TradingView 1-minute data for AMC on 2023-08-25 at 14:20:00 EST: Open: 12.58 High: 12.65 Low: 12.55 Close: 12.61
Here is the errant 1-minute AMC price bar as seen in my Qt candlestick charting program (Central time zone):
Here is the same 1-minute AMC price bar as seen in TradingView (Central time zone):
Expected Result Polygon's 1-minute OHLC numbers to match TradingView's 1-minute OHLC numbers within a few pennies.