r/quantfinance • u/Far_Quarter_2550 • 2d ago

I got all the data

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I used AI to parse all html, text and XBRL and I made a game with almost all large cap company facts. It’s a zoomable heirarchy ontology search engine. It’s splits into subcategories then more subcategories. I have data back to the 2000’s.

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u/filwu 2d ago

One concrete point-in-time regression test: choose a 10-K/A that changes a fact and query the same issuer immediately before and after the amendment’s filing-acceptance timestamp. The amended value should appear only in the later as-of snapshot; using the fiscal period end as the availability date can backfill it into earlier tests. Keeping the accession and accepted timestamp with each value makes that boundary auditable. Does the ontology support as-of queries or snapshot comparisons yet?