Mean Variance Optimization
topic on 1 show · 5 statements across 3 episodes
5 statements about Mean Variance Optimization, every show
Chhabra: Harry Markowitz does not invest using pure mean-variance optimization
“Even Markowitz doesn't invest as per Markowitz, and nobody really does mean variance optimization. Otherwise, you put all your money in emerging markets.”
Williams: Mean-variance optimization ignores fat-tail market drops and sequence risk
“For most mean variance optimization problems, you're throwing away the most important information. So think about making a decision about a loss limit over an investment horizon, and you have a real balance sheet to protect, but you're not actually taking into…”
Williams: Standard deviation rarely reflects the actual risks institutional investors face
“So the expected return being a point estimate May connect well into, I want to cover expenses, and I want to grow, and I want to pay fees, but the risk, meaning of variance and their standard deviation, only by some strange coincidence would be connected to th…”
Williams: Mean-variance optimization is a conceptual framework, not a direct tool
“Really surprised that the mean variance optimization framework was applied directly and simply. Like, even from early days, it didn't make sense to me that these concepts, really, the point was to say something about how risk should be perceived, that it's sys…”
Arndt: Most Funds Rely on Flawed, Backward-Looking Portfolio Construction
“Most funds, I would say, I might not like to think of it this way, but I would say they're quite backward looking in their portfolio construction. What I mean by that is they take this sort of cap M theory and their main variance optimization, and they look at…”