What a Complete Trading System Needs Beyond Entry Signals
Summary
The document presents a trading system as an operating plan, not just a rule for choosing when to buy or sell. It covers defining the mandate and instruments, selecting a strategy, allocating capital, setting entry and exit rules, sizing positions, and establishing stop, warning, and liquidation thresholds. It also includes practical operating details such as order types, cancellations, overnight coverage, records, and backup arrangements for outages or illness.
Its main argument is that a strategy’s signals are only one part of live trading. The checklist also emphasizes handling extreme price moves, poor liquidity, company or rule changes, and operational failures. Psychological preparation matters especially for trend following, which the author describes as potentially difficult to stick with during extended choppy periods. The discussion is conceptual and checklist-based: it offers examples, including moving-average conditions, but no tested performance evidence. Its recommendations are broad and would need to be adapted to the trader’s instruments, mandate, and constraints.
Key ideas
- A usable trading system includes portfolio goals, instrument selection, capital allocation, and operating procedures alongside signal rules.
- Position sizing, scaling decisions, exits, and loss limits should be specified in advance.
- Execution planning should cover order handling, liquidity, trading hours, and operational failures.
- Extreme market events and changes to instruments or regulations require explicit response plans.
- Psychological discipline is part of implementation, particularly for strategies that can endure long periods of weak performance.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.