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Bitcoin Stock-to-Flow Tracker

Bitcoin Stock-to-Flow current value, updated every 15 minutes: live S2F ratio and PlanB model price versus actual BTC price. For educational purposes only — not financial advice.

PlanB's S2F model — a mathematical model using circulating supply and annual new issuance. Informational only, not financial advice. Actual price may diverge significantly from model predictions.
S2F Ratio
122.1
supply ÷ annual flow
Model Price
$1.63M
exp(−1.84) × S²F³·³⁶
BTC Price
$62,816
live Binance
vs Model
-96% below model
current premium/discount
Supply
20.05M BTC
circulating BTC
Annual Flow
0.16M BTC
new BTC this year
$50K$100K$500K$1M202420252026H4Actual priceS2F model

S2F by halving era

Each halving doubles the S2F ratio, roughly quadrupling the model's predicted price. The model overshot significantly in H4 — the table shows the divergence between model prediction and the actual cycle peak.

EraDateSubsidyS2FModel priceCycle peak
H1Nov 201225 BTC11.2$533.00$1,150
H2Jul 201612.5 BTC22.4$5,480$19,700
H3May 20206.25 BTC44.9$56,400$69,000
H4Apr 20243.125 BTC120.7$1.57Min progress

How Liquid State's S2F Tracker Works

Stock-to-Flow divides Bitcoin's circulating supply (the “stock”) by the annual new issuance rate (the “flow”). After each halving, the flow is cut in half — doubling the S2F ratio and significantly increasing the model's predicted fair value.

The model price uses PlanB's original power-law formula: price = e^(−1.84) × S2F^3.36. Circulating supply is sourced from blockchain.info; price from Binance public API. Data refreshes every 15 minutes.

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For educational and informational purposes only. Not financial advice. The Stock-to-Flow model is a mathematical construct proposed by PlanB. Bitcoin prices are highly volatile and may deviate significantly from any model prediction. Past patterns are not a guarantee of future performance. Circulating supply from blockchain.info; price from Binance public API.

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