Holding Period and Strategy Frequency

A strategy's holding period — the typical length of time a position is held before being closed or rotated — and its frequency — how often it trades — are two sides of the same design decision, not separate choices to be optimized independently. A strategy that holds positions for months naturally trades rarely, while one that closes every position within minutes must trade constantly just to stay invested in its ideas. Shortening a strategy's average holding period, all else equal, means both trading and rebalancing far more often.

This linkage drives which costs dominate. A short-holding-period, high-frequency strategy lives or dies on transaction costs and market microstructure — its edge per trade is typically small, so commissions, spread, and slippage can consume most of the theoretical return unless execution is genuinely excellent. A long-holding-period, low-frequency strategy instead worries more about opportunity cost and macro risk over the holding window, since a position sits exposed to whatever happens over weeks or months between trades. Capacity moves in the same direction: high-frequency, short-holding strategies tend to have less capacity because they need liquidity available constantly, while patient, long-holding strategies can often deploy more capital without moving the market as much.