Correlation
Correlation measures the linear co-movement of two return series on a scale from minus one to plus one.
Plain-language meaning
Correlation measures the linear co-movement of two return series on a scale from minus one to plus one.
Why it is useful
Correlation is useful as descriptive evidence when it is compared on the same definition, source, period, unit and exact listing. It is one input to research, not a verdict.
Where it appears in XMarketRadar
Look for Correlation in Portfolio Analytics, Risk Cockpit, holding analysis, performance views and relevant screeners.
How it is calculated or sourced
Calculate Pearson correlation between synchronized return series: covariance divided by the product of their standard deviations.
Inputs, period and unit
Read the disclosed inputs or source, observation period, bar interval, unit, native currency and scale. A value without its source and as-of context is incomplete; unlike units must not be combined.
Worked example
Illustrative only: Correlation +0.8 indicates strong same-direction linear co-movement in the sample; −0.6 indicates substantial opposite-direction co-movement; 0 indicates little linear relationship.
What high and low mean
A higher or lower Correlation value is descriptive, not automatically good or bad. Meaning depends on the instrument, comparison period, method and related evidence.
Positive, negative and genuine zero
Positive and negative Correlation values retain the definition shown here. A genuine reported or computed zero is displayed as 0 and is not the same as missing evidence.
Limitations and common mistakes
Historical estimates are sensitive to sample length, frequency, missing sessions, benchmark, currency and outliers. They can change and do not predict future outcomes.
Market-specific differences
The concept is used across all supported markets, but currency, price scale, session calendar, source field and regulatory definition can differ. XMarketRadar preserves the exact exchange context.
Suggested next steps
Open the related Portfolio and risk terms below, then follow the matching Help Centre task guide and inspect Correlation on an exact exchange listing. Confirm source, as-of time, units and unavailable reason before using it in research.
Educational information only; not investment advice or an order service.
This Correlation tutorial is educational and descriptive. It is not investment advice, a price prediction, a recommendation, or an instruction to buy, sell, rebalance or place an order.