COST Stock Candles: Why Start Time Isn’t Close Time
Summary
Hollow Point Trading shares a short explaining how candle timestamps mark the start of an interval, not when its final close becomes known. In a COST example, the five-minute interval begins at 15:10 UTC, while its final observed close of 945.66 comes from the 15:14 observation. This distinction matters when interpreting historical data and avoiding look-ahead bias.
https://youtu.be/128LTEEgd88
COST: a start timestamp does not reveal the future close #Shorts
A candle timestamp can mark its beginning, not the moment its final close was known. This Costco example groups historical IEX observations into the five minute interval starting at fifteen ten UTC. Its final observed close is nine forty five point six six. That final close comes from the fifteen fourteen minute observation. It was not informati...
