Only showing the latest backtest versions without disclosing their out-of-sample degradation
Backtesting today’s static holdings (managers, asset allocations, sub-asset-classes) into the past - filled with look-ahead bias
Charging fees that are on par with the tracking error of the strategy
Asking candidates at job interviews to reveal ‘interesting new factors and data-sets’
Publishing quant ideas, methods, and factors that you would not actually use to manage assets
Factor explaining someone’s alpha - is a feat in attribution models, not factor investing
Taking out track records of under-performing strategies from third-party performance databases
Moving track-records to another category to improve rankings
Using live-only strategies to demonstrate that a certain type of managers has alpha - add back dead / inactive strategies (eVestment has point-in-time data)
Showing 10-year expected return forecasts on a monthly frequency - not implementable
Non-disclosing portfolio managers’ percent of personal wealth (or corresponding asset class allocation) invested in their own strategies
Not setting bonuses based on cumulative since inception performance