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.
Live preview
Press ESC to leave fullscreen. Settings are saved in your browser only.
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.