Instructions
1. Calculate average monthly return for each stock
2. Calculate variance and standard deviation of each stock
3. Create a variance-covariance matrix with these three stocks
4. Calculate the global minimum variance portfolio
5. Calculate the return and risk of the global minimum variance portfolio
Each student format should be different from other. Plagiarism will be higly penalized

4/8/2021	$683.80	3299.3	313.02
4/7/2021	$670.97	3279.39	313.09
4/6/2021	$691.62	3223.82	306.26
4/5/2021	$691.05	3226.73	308.91
4/1/2021	$661.75	3161	298.66
3/31/2021	$667.93	3094.08	294.53
3/30/2021	$635.62	3055.29	288
3/29/2021	$611.29	3075.73	290.82
3/26/2021	$618.71	3052.03	283.02
3/25/2021	$640.39	3046.26	278.74
3/24/2021	$630.27	3087.07	282.14
3/23/2021	$662.16	3137.5	290.63
3/22/2021	$670	3110.87	293.54
3/19/2021	$654.87	3074.96	290.11
3/18/2021	$653.16	3027.99	278.62
3/17/2021	$701.81	3135.73	284.01
3/16/2021	$676.88	3091.86	279.28
3/15/2021	$707.94	3081.68	273.75
3/12/2021	$693.73	3089.49	268.4
3/11/2021	$699.60	3113.59	273.88
3/10/2021	$668.06	3057.64	264.9
3/9/2021	$673.58	3062.85	265.74
3/8/2021	$563	2951.95	255.31
3/5/2021	$597.95	3000.46	264.28
3/4/2021	$621.44	2977.57	257.64
3/3/2021	$653.20	3005	255.41
3/2/2021	$686.44	3094.53	259
3/1/2021	$718.43	3146.14	264.91
2/26/2021	$675.50	3092.93	257.62
2/25/2021	$682.22	3057.16	254.69
2/24/2021	$742.02	3159.53	264.31
2/23/2021	$698.84	3194.5	265.855
2/22/2021	$714.50	3180.74	260.33
2/19/2021	$781.30	3249.9	261.56
2/18/2021	$787.38	3328.23	269.39
2/17/2021	$798.15	3308.64	273.57
2/16/2021	$796.22	3268.95	273.97
2/12/2021	$816.12	3277.71	270.5
2/11/2021	$811.66	3262.13	270.39
2/10/2021	$804.82	3286.58	271.87
2/9/2021	$849.46	3305	269.45
2/8/2021	$863.42	3322.94	266.58
2/5/2021	$852.23	3352.15	268.1
2/4/2021	$849.99	3331	266.49
2/3/2021	$854.69	3312.53	266.65
2/2/2021	$872.79	3380	267.08
2/1/2021	$839.81	3342.88	262.01
1/29/2021	$793.53	3206.2	258.33
1/28/2021	$835.43	3237.62	265
1/27/2021	$864.16	3232.58	272.14
1/26/2021	$883.09	3326.13	282.05
1/25/2021	$880.80	3294	278.01
1/22/2021	$846.64	3292.23	274.5
1/21/2021	$844.99	3306.99	272.87
1/20/2021	$850.45	3263.38	267.48
1/19/2021	$844.55	3120.76	261.1
1/15/2021	$826.16	3104.25	251.36
1/14/2021	$845	3127.47	245.64
1/13/2021	$854.41	3165.89	251.64
1/12/2021	$849.44	3120.83	251.09
1/11/2021	$811.19	3114.21	256.84
1/8/2021	$880.02	3182.7	267.57
1/7/2021	$816.04	3162.16	268.74
1/6/2021	$755.98	3138.38	263.31
1/5/2021	$735.11	3218.51	270.97
1/4/2021	$729.77	3186.63	268.94
12/31/2020	$705.67	3256.93	273.16
12/30/2020	$694.78	3285.85	271.87
12/29/2020	$665.99	3322	276.78
12/28/2020	$663.69	3283.96	277
12/24/2020	$661.77	3172.69	267.4
12/23/2020	$645.98	3185.27	268.11
12/22/2020	$640.34	3206.52	267.09
12/21/2020	$649.86	3206.18	272.79
12/18/2020	$695	3201.65	276.4
12/17/2020	$655.90	3236.08	274.48
12/16/2020	$622.77	3240.96	275.67
12/15/2020	$633.25	3165.12	275.55
12/14/2020	$639.83	3156.97	274.19
12/11/2020	$609.99	3116.42	273.55
12/10/2020	$627.07	3101.49	277.12
12/9/2020	$604.48	3104.2	277.92
12/8/2020	$649.88	3177.29	283.4
12/7/2020	$641.76	3158	285.58
12/4/2020	$599.04	3162.58	279.7
12/3/2020	$593.38	3186.73	281.85
12/2/2020	$568.82	3203.53	287.52
12/1/2020	$584.76	3220.08	286.55
11/30/2020	$567.60	3168.04	276.97
11/27/2020	$585.76	3195.34	277.81
11/25/2020	$574	3185.07	275.59
11/24/2020	$555.38	3118.06	276.92
11/23/2020	$521.85	3098.39	268.43
11/20/2020	$489.61	3099.4	269.7
11/19/2020	$499.27	3117.02	272.94
11/18/2020	$486.64	3105.46	271.97