Editorial
Research briefings
Latest briefings
The newest notes first. A briefing is filed whenever the curated record changes, and it records what moved in the data or the research since the note before it.
31 October 2026
Canonical dataset release: corrected early returns and the 2021 low
The curated yearly table now carries the corrected full-year returns for 2010, 2011 and 2013 and the January 2021 intraday low, and every derived series has been recomputed from the corrected figures.
- Bitcoin yearly returns, 2010-2025
- Major drawdowns and recoveries
- Major highs and lows
30 September 2026
Reading the halving-window record without overfitting it
Four halvings have occurred, which is too few observations to support a rule. The post-halving window series is published with its truncated final window labelled rather than extrapolated.
- Bitcoin halving history
- Bitcoin yearly returns, 2010-2025
31 August 2026
Drawdown recovery durations: the deepest declines took two to three years
Recovery is measured from the peak rather than the trough, and the most recent episode had not regained its prior peak at the time of compilation, so its recovery fields are null rather than estimated.
- Major drawdowns and recoveries
- Major highs and lows
31 July 2026
Year-end market capitalisation is an annual observation, not a daily series
The capitalisation series is computed from the year-end price and the circulating supply at that date and rounded to the nearest million dollars, and every record says so in its basis field.
- Year-end market capitalisation, 2010-2025
- Bitcoin yearly returns, 2010-2025
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