REVIEWING PORTFOLIO CONSTRUCTION-WITH A LITTLE HELP FROM MY FRIEND – GEMINI
REVIEWING PORTFOLIO CONSTRUCTION-WITH A LITTLE HELP FROM MY FRIEND – GEMINI Portfolio Construction (PC) is a different skill from security selection. Security selection is the identification of a security and weighing up whether the risk/return makes sense. PC is more multi-faceted. There is the security selection question, then the sizing question and then the interplay of that security with the rest of the portfolio, like factor or theme exposure. Unconscious bets in the portfolio can be dangerous and usually surface after the damage is done. That is, where unidentified correlations exist, they can bite severely and unexpectedly. Then there is the completely separate question of appropriately sizing stocks, factors and themes to optimise returns; that is a complex task in itself. Admittedly, I've always struggled with diversification for diversification's sake. If an asset is just there because it is different, that doesn’t make much sense to me. I want assets or stocks tha...