Top-performing fund managers ("maestros") have a median hit rate of only 49%, but outperform by making significantly more on their winners than they lose on their losers (median payoff ratio of 182%, or 1.87x).
Key performance metric is the Behavioral Alpha (BA) score (>50 indicates skill over luck); maestros scored between 53-63.
Investor behavior post-investment is critical and categorized into five archetypes: Rabbits (do nothing on losers), Assassins (cut losers quickly), Hunters (add to losers), Raiders (cash out winners early), and Connoisseurs (ride winners big).
Letting winners run is a common, critical trait among high performers; trimming too early can severely limit upside and portfolio payoff ratios.
Handling losers is varied: strategies range from strict capital-based stop-loss rules (e.g., sell at 1% of total capital loss) to fundamental reviews, but a key insight is that losers consume disproportionate mental energy.
Small position sizing (e.g., 70 basis points) allows investors to withstand large drawdowns (e.g., 70%) in individual positions without catastrophic portfolio damage, enabling a "lumberjack" (hold through volatility) strategy.
A major red flag is "thesis creep" – altering your investment thesis to fit new, negative data rather than admitting the original thesis is broken.
Execution, position sizing, and selling discipline are as important, if not more so, than initial stock selection for generating alpha.
Different strategies can be successful: e.g., short-term momentum-based investing (15-month rule) vs. long-term quality holding (10+ years).
The Chinese market is unique due to high retail participation and short-term focus, creating long-term opportunities for institutional investors.