As of 2021-03-31

The following ESG scores are computed for the funds, using weighted average of the
funds' own "ESG Rating in Percent vs Traditional Benchmark" information (see factsheet).

Score quantification: [0, 1, 2, 3, 4, 5, 6] = [CCC, B, BB, BBB, A, AA, AAA]

Why not using the Fund's ESG rating, when declared? 2 reasons

1) I did not trust it. Some funds have score = AA when >50% of the allocation weight is on A or BBB
2) To make comparisons numerically consistent.

Re-calculated fund scores:

Fund ID         Score       Calculation
CH0033782431    4.59    =   6*0.1 + 5*0.4 + 4*0.47 + 3*0.03 + 2*0.01
CH0424136833    4.41    =   6*0.2 + 5*0.29 + 4*0.28 + 3*0.2 + 2*0.02
CH0500706632    4.41    =   6*0.2 + 5*0.29 + 4*0.28 + 3*0.2 + 2*0.02
CH0110869143    4.34    =   7.24 * 6/10     # 7.24 is the ESG rating mentioned by iShares for the same index, see ishares-spi-equity-index-fund-(ch)-class-i-chf-factsheet-ch0342181713-ch-en-individual.pdf
CH0214967314    3.066   =   5.11 * 6/10     # 5.11 is the ESG rating mentioned by iShares for the same index, see ishares-world-ex-switzerland-small-cap-equity-index-fund-(ch)-class-x0-n-chf-factsheet-ch0244037112-ch-en-individual.pdf
LU1587908150    3.62    =   6*0.12 + 5*0.09 + 4*0.29 + 3*0.29 + 2*0.21

Based on the scores above, the fund's ESG score is:

Weight = Allocation
Weighted score = Score * Weight
Total ESG score = sum(weights) / Covered weight
Total score % = Total ESG score / 6     # mapping [0, 1, 2, 3, 4, 5, 6] = [CCC, B, BB, BBB, A, AA, AAA]

Fund ID         W.Score  Score  Weight
CH0033782431	1.34	4.59	29.00%	Weighted average of allocations in "ESG Rating in Percent vs Benchmark"
CH0424136833	0.88	4.41	20.00%	Weighted average of allocations in "ESG Rating in Percent vs Benchmark"
CH0500706632	0.88	4.41	20.00%	Weighted average of allocations in "ESG Rating in Percent vs Benchmark"
CH0110869143	0.40	4.34	10.00%	Weighted average of allocations in "ESG Rating in Percent vs Benchmark"
CH0214967314	0.29	3.07	10.00%	Weighted average of allocations in "ESG Rating in Percent vs Benchmark"
LU1587908150	0.36	3.62	10.00%	
Total ESG score →	4.24		99.00%	Coverage
Total score %  →	71%