BRETT: Period-over-Period Returns
Brett Period-over-Period Returns: daily data through 9 Nov 2026.
BRETT price return over several look-back periods.
Why use it. Compares short and long-term momentum. How to read it. Lines above zero mean the price is higher than that many days ago.
Calculation. 100 x (close / close n days earlier - 1), from daily closes, for n = 1, 7, 30, 90 and 365 days (fixed day counts, not calendar months). The open day's values use its latest hourly close and are labelled partial until the day ends. Published per UTC day. CryptoKeyhole's own hourly BRETT/USD index from public exchange candles, from 18 April 2024. In the last 30 days it drew on the markets of Bybit and KuCoin.