Every rolling four-year return

2010-2025/Source: Coinbase Exchange daily candles; Bitstamp and CoinDesk historical series for 2010-2014/Each window runs from the close of one calendar year to the close of the year four years later, using the curated year-end close series. The total change is the ratio of the two closes expressed in basis points, and the CAGR is the constant annual rate that would produce that total over four years. Windows overlap by three years, so consecutive entries are not independent observations. The series begins with the 2010-2014 window and ends with 2021-2025; the 2010-2014 window rests on the thinly traded early market, where the year-end figures are widely cited reference points rather than exchange settlement prices. The early years carry the corrected full-year returns of the canonical table: 2010 gained about 385 per cent, 2011 about 1,437 per cent and 2013 about 5,463 per cent, and the 2021 yearly low is the January 2021 intraday low of about $28,130. The same curated year-end close series also supplies the rolling twelve-month extremes: those windows run from the close of one calendar year to the close of the following calendar year, so each window is exactly twelve months and the series covers 2010-2011 through 2024-2025. Because the observation grid is annual, a twelve-month window is a single year-end step and consecutive windows do not overlap; the twelve-month CAGR equals the total change over the window. The 2010-2011 window rests on the thinly traded early market.