The following is a graph that shows the average performance of the top 20 (green or orange) picked by the program vs. the entire list (blue or red) after various days from the initial historical data download.
Number
of
days		Number
of
results		Percent change for all vs. top 20
1 570 -0.0321929824561399
0.276087719298247
2 277 0.0201444043321296
0.119314079422383
3 176 -0.61653409090909
-0.725170454545455
4 84 -0.402976190476191
-0.381785714285717
5 29 0.0562068965517244
0.0427586206896544
6 19 0.0131578947368425
-0.0594736842105259
7 40 -0.65175
-0.714750000000002
8 38 -1.62315789473683
-1.73763157894735
9 18 -0.886666666666672
-0.577222222222214
10 40 -0.623999999999997
-0.364499999999999
11 21 -0.355238095238096
0.0857142857142829
12 17 0.779411764705885
1.98470588235294
13 6 0.773333333333333
1.815
14 10 0.25
1.758
15 8 -0.8725
-1.26375
16 4 1.9725
2.2325
17 5 4.722
8.32
18 14 2.44714285714285
5.77857142857142
19 13 2.36769230769231
8.56846153846151
20 4 1.755
3.055
21 3 6.13666666666667
8.35666666666667
22 6 2.21833333333333
4.35166666666667
23 1 0.8
0.12
24 3 3.16666666666667
5.68
25 8 3.4825
6.41875
26 5 2.108
3.85
27 4 7.9875
11.8925
28 15 -0.481333333333333
-0.644666666666669
29 1 3.07
4.91
30 0 0
0
31 1 2.79
6.14
32 1 3.24
7.49
33 1 2.17
4.3
34 0 0
0
35 1 6.8
10.66
36 0 0
0
37 5 1.984
1.12
38 0 0
0
39 0 0
0
40 0 0
0
41 0 0
0
42 2 4.14
5.37
43 0 0
0
44 1 -7.46
-7.56
45 0 0
0
46 1 1.08
5.65
47 0 0
0
48 0 0
0
49 0 0
0
50 1 6.95
8.99
0
0
0
0