Schrödinger’s Style Box

The performance derby between actively managed portfolios and passive benchmarks is strongly influenced by market conditions.  Active manager success rates are cyclical, but not random, and are driven by slippage created from style, size, and weighting considerations that result from the imperfect slotting of active portfolios into single style boxes.  Moreover, this slippage can be defined and measured, and shows a clear correlation with relative return spreads between benchmarks and their opposite boxes.