Methodology center
How every number is made
No black boxes: each derived metric has a page stating its purpose, exact formula, inputs, universe and limitations. If a score can't be explained, it isn't published.
Versioning: metric formulas are versioned; when a formula changes, historical scores are recomputed and the change is noted here — never silently rewritten.
Confidence: when comparable data is insufficient (too few holders, no prior filing, filing season incomplete) the site shows a labeled gap instead of a confident number.