Data & Tools
Trace an argument to its numbers. Explore maintained Treasury and Fed series, compare corporate disclosures, or change the assumptions yourself.
Standing trackers
Observations update from public sources. Editorial commentary has its own review date. Open a tracker for the chart, method, source data, and downloads.
Work with the assumptions
Treasury Period Comparison
Compare two observation periods, with the units and actual dates kept in view.
Debt Interest Scenario
See how refinancing and a rate change affect an annual interest run rate.
AI Infrastructure Spending
Read four companies’ infrastructure disclosures without confusing cash spending, leases, and forecasts.
Compute Depreciation Scenario
Compare the accounting cost of the same investment over two useful lives.
Keep the evidence reproducible
Published Data Notes use archived snapshots. Trackers use the latest successfully retrieved version. Chart downloads include the selected period, transformations, units, and sources; untransformed source snapshots are available separately.
These tools support the Treasury and AI infrastructure dossiers. Read our editorial standards for the distinction between an observation, a model estimate, and our interpretation.