Taking Partial Profits by Selling Half After a 10% Gain

Summary

The document raises a position-management idea for an equity holding: after a stock gains 10%, sell half the shares to secure some of the unrealized profit while leaving the rest invested for further gains. Its example starts with 1,000 shares and proposes reducing the position by half when the threshold is reached. The author asks for help implementing the rule in a backtest.

A note accompanying the question says the condition should be checked each day, so if the remaining position continues to meet the profit condition after a partial sale, another half of the remaining shares would be sold. This makes the rule a repeated scale-out rather than a one-time reduction. The document does not include a complete implementation, backtest results, transaction-cost assumptions, or rules for measuring the gain and handling losses, so it presents a strategy concept rather than evidence of effectiveness.

Key ideas

• The proposed rule sells half of a stock position after it reaches a 10% gain.
• The remaining shares stay invested to participate in any further appreciation.
• The condition is intended to be checked daily, potentially triggering repeated sales of half the remaining position.
• The document provides no completed backtest or detailed execution and risk rules.

Tags

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