"SV on page one" is the cumulative monthly search volume across every keyword a given product ranks for within the top 45 organic positions ("page one"). Because this cumulative figure tracks closely with a product's sales performance, it functions as a benchmark for how much keyword-ranking coverage a listing needs to be competitive in a niche: a listing's own SV-on-page-one total can be compared against top competitors' totals (drawn from the same set analyzed via Reverse ASIN Lookup (Data Dive)) to gauge how far short of "fully competitive" coverage it falls. Distinct from per-keyword relevancy scoring in Data Dive Four-Bucket Keyword Sorting System — this metric aggregates across the whole ranked keyword set rather than scoring individual terms.
Compare SV-on-page-one across competitors to benchmark roughly how much keyword-ranking coverage is needed for comparable sales. A related figure, 30-day outlier search volume, sums only the SV a competitor captures from Data Dive Four-Bucket Keyword Sorting System Outlier-tier keywords (relevancy <30%), gauging how well that competitor capitalizes on overlooked, less-common search terms and spotlighting which competitors are weak on this front.