Glossary

Price change noise

Price change noise is small, sub-1% price fluctuation caused by automated repricing tools, currency rounding, or bulk pricing rules, rather than a deliberate pricing decision. Most raw price-change data is dominated by this kind of noise, not meaningful moves. Filtering it out is what separates a real signal, like an actual price cut, from routine background activity that does not need a response.

Learn more: How much of competitor price data is noise

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