I'm very confused and stuck on this homework and would love some help on how I can work this problem! I will give top ratings to whomever can help me out! Thanks!!

3. (6 points) We observe the following price on the stock market in the week of September 15, 2014. Walgreen Disney Microsoft AT&T Date (WAG) (DIS) (MSFT) (T) 9/15 62.72 90.08 46.24 34.69 9/16 63.64 90.27 46.76 34.95 9/17 63.73 90.33 46.52 35.02 9/18 63.18 90.34 46.68 35.16 9/19 62.88 90.49 47.52 35.47 con425 Homework 6 Stock market statistics 2 (a) (2 points) On Monday, September 15th you formed a portfolio with 25% of funds in each stock. Calculate the index of your fund by September 19th where 9/15 is 100. (b) (4 points) Suppose that you bought one share of each stock on September 15th. Compute the weight of each stock in your portfolio. What is the 5-day holding return of your portfolio between September 15th and September 19th? During this time period no dividend was announced for any of these companies