Data sources & licensing

For sources marked GODL v1, the licence itself permits commercial use, including reproduction, adaptation and redistribution, provided the source is visibly attributed. We add no further restriction on those sources. To be precise, though: a permissive licence is not the same as clearance for your particular use. This page states the licensing status of the data, not a legal conclusion about your situation. For anything material or borderline, ask your counsel rather than a web page.

Copy either string from the attribution section above — both are written to be quoted verbatim. If you use only our derived works, such as scores or factors, also name 8888fortune.com as the source of those derived works alongside the underlying attribution.

Three reasons. Some are derived structured works built on public disclosures, where serving raw values would mean passing on something that is not ours to pass on. Some come from official sources whose open-data listing status we are still confirming item by item, and until that is settled we take the conservative reading. Some are simply still being built. Those three are used inside the site's own features and stay outside the external API. A tidier matrix would be easy; knowing where the line sits is more useful.

Official sources served externally keep their original values: no smoothing, no gap filling, no back-filling of later restatements. What we add is freezing the version available on each trading day — a point-in-time snapshot — so a figure you query for a past date is the version genuinely visible that day rather than the corrected one published later. Correctness of the official figures themselves is as published by the competent authorities.

Yes, automatically. The matrix on this page is computed from the site's live coverage state rather than maintained by hand. When a source's external-serving status changes, the next person to open this page sees the new status — nobody has to remember to come back and edit it.