Walmart's Stock: Please graphically show the performance of the company’s monthly stock price over the past 3 years ending 04/01/2018. Discuss some of the likely events that may explain the performance of Walmart’s stock price as shown in the graph (both firm specific and economy wide factors may be important). Compare the performance of Walmart's stock to an equity benchmark such as the S&P 500 or the Nasdaq over the same period.