Bitcoin rainbow chart (model)
Our own fit: trend line log₁₀(price) = -16.20 + 5.60 × log₁₀(days since the genesis block), least squares over all daily prices. Bands are ±0.5σ steps (σ = 0.301 in log₁₀).
Close on 2026-10-22: $84,019, trend line $141K, deviation -0.75σ.
Data: blockchain.info charts/market-price (daily USD, sampled=false) · 22 Oct 2026, 19:15 London
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⚠ This is a model, not a forecast. Models describe past data and have already diverged from the real price. Not investment advice.
Chart (log scale)
FAQ
- Where does the rainbow chart come from?
- The idea appeared on Bitcointalk in 2014; Blockchaincenter publishes the popular version. Here we compute our own version from an open formula, so the numbers may differ.
- Can it predict the price?
- No. It is a curve fitted to past prices. Nothing guarantees that price stays inside the bands.