There are essentially two types of stock price data charts: the daily data chart and the intraday data chart. The display of intraday price data may use different time frames from one minute, five minutes, 15 minutes and all the way to 60 minutes. Within any time frame, including the daily interval, a data set starts with the opening price, has a low and high price during the time period and ends with the closing price. In a 60-minute intraday data chart, prices at the four price points are printed every 60 minutes throughout the trading day.
Divide a trading day into intraday day periods based on the 60-minute time frame. Regular trading time for U.S. stock exchanges is six and half hours. Thus one trading day is divided into seven time intervals to create the 60-minute intraday data sets.
Record prices for each of the seven time periods. Prices are recorded for each period at four price points: opening, the lowest, the highest and closing. Prices can be either observed in live stock data from streaming quotes or gathered from data on other existing time frames such as the 15-minute or 30-minute intervals. If using the 15-minute time frame, to make the 60-minute intraday data, every four 15-minute intervals are converted to one 60-minute period. The opening price of the first 15-minute interval and closing price of the last are used. The lowest and the highest price throughout the four intervals are used.
Draw the 60-minute intraday price data chart. There will be in the price chart a total of seven candlesticks or bars with each representing prices at opening, of the lowest and the highest and at closing for each of the seven 60-minute intraday periods.