Sentiment Magnitude is a metric provided by sentiment analysis APIs that quantifies the strength of the opinion or emotion expressed in the text. It measures intensity irrespective of whether the sentiment itself is positive or negative.

In visualizations, the size of the chart element (e.g., a bubble in a bubble chart) signals the magnitude of the opinion. This metric is returned for both overall document sentiment and specific entity sentiment. Strong sentiment magnitude, especially positive sentiment toward products or consumer goods, is a weighted signal that can strengthen the classification of transactional intent in query analysis.