Appendix 1.1: Table 1.1 - Weekly discrete rate of returns
Week	Date	Apple Inc. (AAPL)	McDonald's Corporation (MCD)	Southwest Airlines Co. (LUV)	S&P 500 Index (GSPC)
1	30-Oct-17
2	6-Nov-17	1.2549%	-1.8187%	-1.1872%	-0.2141%
3	13-Nov-17	-2.2355%	0.6847%	2.2714%	-0.1336%
4	20-Nov-17	2.8316%	1.4330%	0.7893%	0.9140%
5	27-Nov-17	-2.2409%	2.2269%	8.6687%	1.5293%
6	4-Dec-17	-0.9841%	0.7554%	5.6980%	0.3512%
7	11-Dec-17	2.7198%	0.5289%	2.3625%	0.9168%
8	18-Dec-17	0.5968%	-1.5205%	1.9672%	0.2814%
9	25-Dec-17	-3.3001%	0.4109%	-0.7899%	-0.3626%
10	1-Jan-18	3.4068%	1.1225%	-1.7302%	2.6010%
11	8-Jan-18	1.1923%	-0.2775%	1.6204%	1.5708%
12	15-Jan-18	0.7741%	1.4668%	-0.4753%	0.8635%
13	22-Jan-18	-3.8916%	1.2742%	-6.5013%	2.2265%
14	29-Jan-18	-6.4234%	-5.0327%	-3.4767%	-3.8547%
15	5-Feb-18	-2.5435%	-5.0677%	-5.4626%	-5.1620%
16	12-Feb-18	10.6908%	-1.8712%	5.0018%	4.3011%
17	19-Feb-18	1.7815%	3.3355%	-0.4815%	0.5519%
18	26-Feb-18	0.4004%	-9.0662%	-0.3110%	-2.0402%
19	5-Mar-18	2.1421%	6.7192%	3.2588%	3.5418%
20	12-Mar-18	-1.0876%	3.2562%	2.2327%	-1.2402%
21	19-Mar-18	-7.3475%	-4.5455%	-6.8637%	-5.9502%
22	26-Mar-18	1.7224%	0.9033%	0.9873%	2.0326%
23	2-Apr-18	0.3530%	3.1142%	-3.4742%	-1.3783%
24	9-Apr-18	3.7739%	0.2977%	-0.3979%	1.9900%
25	16-Apr-18	-5.1591%	-1.8302%	-0.5448%	0.5210%
26	23-Apr-18	-2.0475%	-0.2960%	-2.2640%	-0.0086%
27	30-Apr-18	13.2468%	4.2514%	-1.4011%	-0.2431%
28	7-May-18	2.5939%	0.2181%	-0.6063%	2.4142%

(i) Compute the weekly rate of return and the variance of an equally weighted portfolio formed from the three stocks

(ii) Examine and compare the pattern of the returns of your portfolio with those of the individual stocks, and the stock index. Compare the corresponding variances. Comment on your observations