Tuning Equity Strategy Parameters and Selecting Factors

Summary

This article discusses practical choices when tuning a short-term stock-selection strategy: starting capital, number of holdings, capital allocated per holding, holding period, and factor selection. Its author argues that the number of names and per-name allocation must be adjusted together so that capital is not left unused. It also recommends choosing a trading style suited to the investor, testing combinations of candidate factors, and varying factor lookback settings.

The example compares holding five stocks at a 20% allocation each with holding two at a 90% allocation each, keeping a two-day holding period. The author reports that the adjusted setup produced nearly four times the return of the earlier configuration, alongside improved drawdown and win rate, but supplies no full backtest record, dates, costs, or risk-adjusted measures. The claim that fewer holdings necessarily improve average score or win rate is not established by the example. Results may reflect parameter selection and should be validated out of sample with realistic trading costs and capacity limits.

Key ideas

• Initial capital affects both market impact and the share of funds consumed by trading costs.
• The number of holdings and the maximum allocation per holding should be configured together.
• The article compares a five-stock portfolio at 20% per name with a two-stock portfolio at 90% per name.
• It recommends testing factor combinations and alternative factor lookback values.
• The reported return improvement lacks enough detail to establish robustness or generality.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.