In one corner is Amazon Prime Day. Amazon will run four days of sales, starting on July 8 and running through July 11. In the ...

Meanwhile, Kayak’s flight price alerts go a step further by analyzing data to predict price trends. "We use data to determine what will happen to prices in the next few days to help you know the ...

Standard Deviation The primary measure of volatility used by traders and analysts is the standard deviation. This metric reflects the average amount a stock's price has differed from the mean over ...