Intrade Historical Archive

Historical Intrade contract metadata, daily market summaries and individual trade records, preserved with original archives and modern reproducible access tools. The source spreadsheet contains 17,295 contracts across 22 category labels. The collection includes documented gaps, notably 12 missing trade files with supplemental daily closing-price histories. Standardized CSV/Parquet tables preserve source provenance and retain zero values, repeated trade tuples and separate daily source types. The release also includes a searchable static explorer, coverage catalog, source manifests and SHA-256 checksums. Counts and observed date ranges in the accompanying quality report describe surviving records, not complete exchange history. The historical datastore stream is incomplete on full deserialization and is retained without claiming recovery of missing observations.