Intermediate
5 min read

Evidence Levels and Missing Data

Not all evidence is equal, and missing evidence should never be treated as neutral.

Grading evidence

Ask what kind of thing each claim actually is.

  • Reported fact from a regulatory filing
  • Derived measure calculated from reported facts
  • Estimate or projection made by someone
  • Opinion, narrative or expectation

Point-in-time discipline

Research is only honest if it uses information that was actually available at the time. Using later-known information to evaluate an earlier moment — lookahead bias — makes any analysis look far better than reality.

This is why our own research records the date each piece of evidence became available and evaluates companies only on what was known then.

Missing data stays missing

When evidence is unavailable, our platform labels it unavailable rather than substituting an assumption or an average. A company is never ranked using evidence it does not have.

Why this matters

Filling gaps with assumptions is how confident, wrong conclusions get built.

Terms used in this lesson

Point-in-time
Using only the information that was genuinely available on a given historical date.
Lookahead bias
Using information in an analysis that was not actually available at the time being analysed.
Coverage
How much reliable evidence exists for a company. Low coverage means less can be assessed.
See the full glossary
Written by
Suggested Investments Research Team
Content type
Educational article
Published
2026-09-13
Last reviewed
2026-09-13

Sources and methodology

Educational content only. This lesson is not investment, tax or legal advice and does not recommend buying or selling any specific investment. All investing involves the risk of loss.