A candlestick is manufactured up of four data factors: the Open, High, Reduced, and shut (also often called the OHLC values). The Open and Close are the first and last recorded price with the supplied timeframe, although the Reduced and High are the lowest and highest recorded price, respectively. https://financefeeds.com/easyas-web3-developer-community-surpasses-one-million-and-launches-polkadot-education/