- Glossary
- Range
Range

Key Highlights
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Range is a set of related values, usually numbers, that has a specific order and can be measured in some way.
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Range = Highest Price − Lowest Price
What is Range?
Range is a set of related values, usually numbers, that has a specific order and can be measured in some way. It is often used to describe the difference between the highest and lowest values in a series of numbers. In general, a range is the extent, scope, or bounds of something.
How it’s Calculated?
Range = Highest Price − Lowest Price
Why it Matters?
A wide range means big price swings, signaling high volatility (more risk).
A narrow range means smaller price changes, suggesting stability (less risk).
It’s often shown on charts as the vertical span of a candlestick or bar.
How it’s Used?
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Traders look at the range to spot support (where prices often stop falling) and resistance (where prices often stop rising).
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They might buy near the low end of the range and sell near the high end.
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It helps gauge market risk - bigger ranges often mean riskier investments.
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Different assets have different ranges; for example, stocks or commodities usually swing more than government bonds.
Example:
If a stock hits $50 at its highest and $45 at its lowest in a day, the range is $5.