ALFRED Vintage Macro

Point-in-time FRED data — what a macro series was REPORTED as, as of any past date (no-lookahead backtest primitive)

Series∿

GDP

As-Of Date◷

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Vintage cutoff

Observations≣

—

As known on date

Query

Series As of

GDP as reported on —

No observations for GDP as of the selected date. Pick an as-of date after the series' first release.

ALFRED (ArchivaL Federal Reserve Economic Data) preserves every vintage of a series — the figure as it was actually reported at the time, before later revisions. A vintage snapshot reconstructs the data set a model would have seen on a given date; the revision trail shows how one data point was restated over time. Use it to remove look-ahead bias from macro backtests. Calculator output, not a recommendation.