This project consists of analysis of stock prices of tech companies. In this particular project we have considered 4 companies : Google, Microsoft, Amazon and Apple. We'll be answering the following questions along the way : 1.) What was the change in price of the stock over time?; 2.) What was the daily return of the stock on average?; 3.) What was the moving average of the various stocks?; 4.) What was the correlation between different stocks' closing prices?; 4.) What was the correlation between different stocks' daily returns?; 5.) How much value do we put at risk by investing in a particular stock?; 6.) How can we attempt to predict future stock behavior?