Quant investing: What is noise and stress testing, and how do we run these tests?
Noise and stress testing are important techniques for making a trading strategy more robust.
Noise testing simulates random market fluctuations, such as those that occur due to news events or other unpredictable factors. The goal of noise testing is to determine how sensitive a strategy is to these types of fluctuations, and to identify any potential weaknesses that may be exposed under these conditions.
Stress testing, on the other hand, simulates extreme market conditions, such as sharp price movements or high volatility. The goal of stress testing is to determine how well a strategy can withstand these conditions, and to identify any potential flaws that may be exposed under extreme market conditions.
How to use noise & stress testing
One way to use noise and stress testing to identify the robustness of your strategy is to run tests during periods of irregular market movements. If your strategy continues to operate and perform during these periods of irregular movement moves, then it adds additional evidence that your strategy is robust. On the other hand, if your strategy is a ‘tail’ strategy (it is designed to perform during irregular market moves), then removing these irregular periods out of your back test provides you clarity on how the strategy may perform outside of these times. Doing this provides you with clear information on how the strategy performs during regular and irregular market moves.
Summary
In summary, noise and stress testing are important techniques for making a trading strategy more robust. They involve simulating extreme market conditions and observing how a strategy performs under these conditions. By monitoring the performance of the strategy under regular and irregular market conditions, a trader can adjust their expectations for how a strategy may perform over the long term.
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Hue Frame is the founder of Frame Funds Management. Frame Funds is a quantitative funds management company, that manages assets for institutional and wholesale clients, and proprietary funds.
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Hue Frame is the founder of Frame Funds Management. Frame Funds is a quantitative funds management company, that manages assets for institutional and wholesale clients, and proprietary funds.
Expertise
Hue Frame is the founder of Frame Funds Management. Frame Funds is a quantitative funds management company, that manages assets for institutional and wholesale clients, and proprietary funds.
Expertise
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