Alpha in Forex
A clear definition of Alpha, with practical context for reading markets and making better trading decisions.
Definition
Alpha is a performance measure that describes how much an investment or strategy returned compared with what would be expected from a chosen benchmark or risk model.
Positive and Negative Alpha
A positive alpha means the investment performed better than the benchmark or model expectation over the period being measured. A negative alpha means it performed worse. Alpha is commonly discussed alongside beta, because beta describes sensitivity to market movements while alpha tries to isolate excess performance.
Why Context Matters
Alpha depends on the benchmark, time period, fees, and risk model used. A strategy can appear to have strong alpha against one benchmark and much less against another. Past alpha also does not guarantee that the same edge will continue.
Key Takeaway
Alpha is a relative performance measure. It asks whether returns exceeded or fell short of an appropriate benchmark after accounting for the chosen risk framework.
Practical forex example
Why Alpha matters
Understanding Alpha helps traders interpret market information, plan decisions, and manage risk with more context.
Related forex terms
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