Step 09
Level: intermediate
Each strategy only works in certain environments; understanding winning conditions helps avoid abandoning a strategy at the most difficult moment. Without a strategy, investment results easily depend on emotions and the short-term market environment.
Value often needs the market to adjust expectations or re-evaluate. Growth needs real growth to continue exceeding expectations. Quality needs time for compound interest to work. Momentum needs trend and money flow. A defensive strategy requires an increased risk environment. No strategy wins all the time. A good strategy that does not fit your time, personality, or resources can still fail.
This step focuses on choosing a game plan and decision-making rules. Detailed portfolio operations will be handled in the portfolio management step.
Each strategy only works in certain environments; understanding winning conditions helps avoid abandoning a strategy at the most difficult moment.
An investment strategy is not about predicting the market next month. A real strategy must clearly state where you will find opportunities, why you will have an advantage, where you might be wrong, and how you will limit your losses. The more vague the strategy, the more likely the decision will be influenced by emotions.
Value often needs the market to adjust expectations or re-evaluate. Growth needs real growth to continue exceeding expectations. Quality needs time for compound interest to work. Momentum needs trend and money flow. A defensive strategy requires an increased risk environment. No strategy wins all the time.
The key issue is fit. A strategy that may work for someone who has time to read reports every day is not suitable for someone who only reviews every quarter. A concentrated strategy may be suitable for someone with a clear edge but dangerous for newcomers. Therefore, choosing a strategy means choosing a game that you can maintain through difficult times.
For each strategy, write what conditions make it successful, what conditions make it weak, and what signs indicate that the environment has changed.
Turn principles into specific checklists before the market puts pressure on you. A good checklist helps you know when to buy, when to do nothing, when to reduce position size and when to acknowledge a broken thesis. When every decision is checked against the rules, you have the data to improve your strategy over time.
Evaluate strategy by short-term results without considering whether the environment is suitable for the strategy or not.
A common mistake is to constantly switch strategies based on the style that has recently worked. This causes investors to buy when expectations are already high and abandon the old strategy just before it recovers. Evaluate strategy by process and winning conditions, not just by short-term results.
The environment or context helps a strategy have a good probability of working.
Market states such as growth, recession, high inflation, abundant or scarce liquidity.
The situation where the price continuously reverses causes the trend signal to be wrong many times.
The strategy can make money from repricing, earnings growth, compounding quality, cash flow, cycles or price trends.
There are passive, semi-active and highly active strategies. The higher the level of initiative, the more edge, time and error control process is needed.
Some strategies need long-term patience, some need to cut losses quickly, some need to endure underperformance. Investors must choose the type of behavior they can actually do.
Application in strategy building
Momentum strategies can work well in clearly trending markets, but are susceptible to whipsaws in noisy sideways markets.
Behavioral risks
Evaluate strategy by short-term results without considering whether the environment is suitable for the strategy or not. The result is often that the portfolio becomes a collection of disconnected decisions that are hard to review and improve.
The style that just won big usually attracts a lot of expectations. Choosing based on the short-term past can easily lead to buying at a disadvantage.
Many people have buying criteria but do not have criteria for reducing position size, making the selling decision dependent on emotions.
Evaluate strategy by short-term results without considering whether the environment is suitable for the strategy or not. A strategy is only useful if you can stick to it when it is temporarily underperforming.
Exercise 1 - reflection
Is your current strategy consistent or inconsistent with the winning conditions of each strategy? Give specific examples.
Exercise 2 - case_study
Momentum strategies can work well in clearly trending markets, but are susceptible to whipsaws in noisy sideways markets. Identify sources of edge, winning conditions, and behavioral risks.
Exercise 3 - action_plan
Write the first 5 rules for your personal Investment Playbook.