Stock-to-Flow Model Screensaver
The Stock-to-Flow Model screensaver compares Bitcoin's real live price and real current circulating supply against the stock-to-flow scarcity model — a popular, unofficial and genuinely contested framework. It's free, runs in your browser, and ESC exits.
How the Stock-to-Flow Model screensaver works
The saver computes Bitcoin's real current circulating supply from the live block height via mempool.space.
Stock-to-flow — supply divided by annual issuance — is calculated from that real, exact figure.
The model's real published formula projects a value from that ratio, shown beside the real live price.
Both update live as new blocks and price ticks arrive.
A worked example
After a halving, the real stock-to-flow ratio roughly doubles overnight — issuance is cut in half by design, a real, scheduled scarcity event, not a market move.
Settings & tips
- Accent recolours the comparison gauge.
- This model has real, publicly documented critics as well as proponents — it's shown as one framework, not a prediction.
- Supply and issuance figures are exact and computed from real block height.
Frequently asked questions
- Is stock-to-flow reliable?
- It's a genuinely contested model — real critics have pointed out real periods where price diverged sharply from it. Shown here as one popular framework, not investment advice.
- Is a key needed?
- No. Supply comes from mempool.space and price from CoinGecko, both free and key-less.
- What is stock-to-flow?
- A scarcity ratio — existing supply divided by new annual production — borrowed from commodities analysis and applied to Bitcoin's real, known issuance schedule.
- Is it free?
- Yes — free, no download, in your browser.