Samara Asset Group, a Malta-based asset manager, tracks the US consumer basket using Bitcoin as the unit of account through its BTCCPI index. The index, launched in May 2025, mirrors the methodology of the Bureau of Labor Statistics' CPI-U, which covers essential goods and services like housing, food, and transportation.
In September, the BTCCPI recorded a 19.30% decline on a month-over-month basis. Despite this monthly drop, the index shows a 43.75% increase over the past year. Data for the index is sourced from the Bureau of Labor Statistics for consumer prices and Yahoo Finance for Bitcoin valuations.
Historical data points from 2026 indicate significant volatility in annual readings. The index rose 25.90% year-over-year in April and jumped 90.00% in August before settling at 43.75% in September. Monthly performance has remained consistently negative throughout the available data points.
The firm markets this index to institutional investors and corporate treasurers to evaluate Bitcoin's purchasing power against standard consumer expenses. The index serves as a tool to measure how the cost of a fixed basket of goods fluctuates when priced in Bitcoin rather than US dollars.
