Jeremy Grantham
“90% of what passes for brilliance or incompetence in investing is the ebb and flow of investment style”
Jeremy Grantham
Are more predictive of future investment performance
Distinguish luck from skill and alpha from investment style
Calculate the factor betas endemic to a manager’s investment process
Produce refined factor-based peer groups that go beyond broad investment styles
Estimate alpha more accurately to improve portfolio optimization
Visually identify the best and worst market conditions for a manager product or composite portfolio