Banknote Blog

Explainer · Inflation · Inflation Day What Is the CPI? The Monthly Number That Moves Markets (and Sets Our Discounts) Once a month, at 8:30 in the morning Eastern time, the U.S. government publishes a single percentage. Bond desks reprice trillions of dollars within minutes. Your Social Security check, your tax brackets, and, at Planet Banknote, your discount code all trace back to it. Here is what the Consumer Price Index measures, how to read it, and why banknote collectors watc …