Please choose real life companies to complete this question. No data was provided by the professor.

Collect 30-day closing values of two companies of your choice, which operate in the same industry.

Collect 30-day closing values of S&P500 (same days as the days of the companies of your choice).

Calculate daily returns for the companies and S&P500, all in one file. (Make sure to sort your data in descending date (earlier dates to later dates i.e. the oldest date on top and newest date at the bottom of the columns).

Graph the returns (of the companies and the S&P500) together in one chart (days on horizontal axis and returns on vertical axis).

Make a 3-line comment about the shapes of the graphs.

Wal-Mart (WMT)
Date	Open	High	Low	Close	Adj Close	Volume
8/23/18	95.5	95.860001	95.059998	95.18	95.18	6096400
8/24/18	95.089996	95.660004	94.349998	94.949997	94.949997	8594300
8/27/18	95.260002	95.610001	94.290001	94.540001	94.540001	7040300
8/28/18	94.769997	96.349998	94.529999	96.07	96.07	9983000
8/29/18	96.279999	96.830002	95.529999	95.639999	95.639999	7862800
8/30/18	95.5	96.5	95.449997	96.099998	96.099998	7058700
8/31/18	96.190002	96.440002	95.110001	95.860001	95.860001	6324700
9/4/18	95.800003	96.269997	95.239998	95.360001	95.360001	8280700
9/5/18	95.669998	96.830002	95.360001	96.620003	96.620003	9474600
9/6/18	96.529999	96.720001	96.010002	96.449997	96.449997	6150800
9/7/18	95.800003	96.480003	95.639999	95.830002	95.830002	6672400
9/10/18	96.110001	97.190002	96.089996	96.900002	96.900002	8332600
9/11/18	97.269997	97.660004	96.489998	96.639999	96.639999	6463500
9/12/18	96.260002	96.739998	95.93	95.970001	95.970001	5900000
9/13/18	95.32	95.620003	94.910004	95.120003	95.120003	7652900
9/14/18	94.529999	94.839996	94.349998	94.589996	94.589996	6319400
9/17/18	94.75	95.480003	94.370003	94.82	94.82	5329800
9/18/18	94.459999	95.589996	94.150002	95.43	95.43	6759800
9/19/18	95.57	95.889999	94.879997	95.239998	95.239998	5675100
9/20/18	95.349998	95.790001	94.949997	95.75	95.75	5256800
9/21/18	95.919998	96.290001	95.629997	95.900002	95.900002	9530133

Kroger (KR)
Date	Open	High	Low	Close	Adj Close	Volume
8/22/18	31.450001	31.99	31.35	31.74	31.74	13288800
8/23/18	31.6	32.400002	31.51	32.310001	32.310001	11686900
8/24/18	32.279999	32.299999	31.190001	31.200001	31.200001	8486100
8/27/18	31.299999	31.389999	30.91	31.190001	31.190001	6684100
8/28/18	31.219999	31.34	30.82	31.110001	31.110001	5749600
8/29/18	31.15	31.360001	30.66	30.68	30.68	6886600
8/30/18	30.76	31.690001	30.73	31.040001	31.040001	6507900
8/31/18	31.01	31.51	30.93	31.5	31.5	7356500
9/4/18	31.540001	31.940001	31.530001	31.9	31.9	8774500
9/5/18	31.790001	32.09	31.6	31.959999	31.959999	6881000
9/6/18	32.07	32.740002	32.049999	32.560001	32.560001	8404900
9/7/18	32.549999	32.73	32.34	32.369999	32.369999	6488100
9/10/18	32.119999	32.150002	31.629999	31.75	31.75	10614100
9/11/18	31.83	32.080002	31.370001	31.389999	31.389999	14372000
9/12/18	31.5	31.83	31.09	31.73	31.73	11846000
9/13/18	28.610001	29.18	28.299999	28.58	28.58	32474400
9/14/18	28.6	28.610001	27.76	27.799999	27.799999	18729600
9/17/18	27.75	28.98	27.540001	28.84	28.84	16749800
9/18/18	28.950001	29.43	28.82	29.290001	29.290001	10436600
9/19/18	29.360001	29.629999	28.370001	28.879999	28.879999	10168400
9/20/18	28.98	29.219999	28.549999	29.18	29.18	9022200
9/21/18	29.43	29.995001	29.299999	29.950001	29.950001	16765367