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0 votes
1 answer
89 views

Excess Return Covariance Matrix is Singular - Cash return and risk free rate are the same [closed]

I've created a three asset excess return covariance matrix. The assets are; equity, bonds, and cash. However, my cash return is the same as my risk free rate ( i.e. 3 month Euribor). This is leaving ...
Farrep7's user avatar
  • 21
1 vote
2 answers
313 views

Return forecasting for portfolio optimization

I have some questions related to forecasting returns and how it's used to generate the inputs for portfolio optimization. First, I want to understand why factor models such as FF- 3-factor model are ...
rodrigo's user avatar
  • 45
1 vote
0 answers
189 views

Black Litterman - numerical instability

I am trying to work out the formula for the posterior mean in Black Litterman's model assuming 100% confidence : Ref: https://corporate.morningstar.com/ib/documents/MethodologyDocuments/IBBAssociates/...
natt010's user avatar
  • 11