Live · Updated every 5 minutes
Bitcoin Fair Value Index
A power-law regression model measuring where Bitcoin stands relative to its long-run fair value.
BFV Score
2/100
Deep Undervaluation
Score of 2/100 means Bitcoin is cheaper relative to its long-run trend than on 98% of all days since 2011.
BTC PRICE
$66,502
FAIR VALUE
$120,957
DEVIATION
45.0% below
DeepAccumulationFairElevatedEuphoria
Dec 990-day BFV Score historyMar 8
Updated: Mar 9, 2026
STRONG ACCUMULATION SIGNAL
Historically, scores below 20 have preceded the strongest multi-year returns. This is the zone where long-term accumulators have been most active — and where the power-law model has been most consistently rewarded.
SHARE THIS SIGNAL
Bitcoin Fair Value Index: 2/100 — Deep Undervaluation
BTC is trading 45.0% below fair value.
Score of 2/100 means BTC is cheaper than 98% of all historical days.
bitcoinfairvalue.com/bfv-score
Get the Weekly BFV Signal
Score, deviation, and risk band — every week, free.
View Full BFV Dashboard
365-day charts, deviation oscillator, allocation simulator.
BFV Score is a percentile rank (0–100) of the current price deviation from the power-law fair value model. Learn about the methodology →