Derived sector analytics: L3 constituent snapshots, daily cap-weighted sector index levels, and per-constituent daily returns. Built offline from taxonomy, mappings, quotes, and stock K-lines. See manifest.json. Typical sizes: constituents ~20k, sectordaily ~180k, tickerdaily ~4.6M rows. - Daily returns are cap-weighted across constituents; index base level = 100. - Constituents require valid daily bars in dojostockkline and positive market cap from dojoquote.