PlanB e a Sua Profecia sobre o Bitcoin: Será o Modelo Stock-to-Flow uma Bússola de Ouro ou uma Busca Fútil?
Bitcoin is currently trading at approximately $90,083.7747 on Gate’s spot market. While it has pulled back from its all-time high, the price remains firmly above key long-term support levels.
This echoes the predictions of the Stock-to-Flow (S2F) model introduced by the anonymous analyst PlanB in 2019. The model treats Bitcoin as digital gold, aiming to estimate its fair value by quantifying the scarcity created by its programmed halving events. According to the model, Bitcoin’s peak price for this cycle could reach $222,000. Some more aggressive market analyses, factoring in institutional adoption and macroeconomic trends, have even set long-term targets of $250,000 or as high as $500,000.
Decoding the S2F Model
PlanB’s Stock-to-Flow model is essentially a valuation framework that seeks to quantify scarcity and link it directly to value. Its core formula is elegantly simple: S2F Ratio = Asset Stock / Annual Asset Flow. Here, "stock" refers to the total amount of Bitcoin that has been issued and is circulating, while "flow" means the number of new Bitcoins produced through mining each year. The higher the ratio, the greater the existing inventory relative to new annual supply, and the scarcer the asset is considered.
Bitcoin’s design makes this model fit seamlessly. Roughly every four years, mining rewards are halved, causing a sudden drop in "flow." As the stock continues to grow, these stepwise reductions in flow drive the S2F ratio sharply higher.
PlanB’s historical data analysis revealed a significant correlation between Bitcoin’s market price and its S2F ratio. Based on this relationship, he produced the now-famous chart projecting Bitcoin’s long-term price trajectory.
The Model’s Appeal and Its Followers
The S2F model quickly gained traction in the crypto community thanks to several investor-friendly advantages. It distills complex market forecasting into a clear narrative built around deterministic events—namely, the halvings. For long-term holders, the model provides a powerful psychological anchor and theoretical foundation. It emphasizes Bitcoin’s irreplicable core features: absolute scarcity, predictable issuance, and decentralization.
Between 2020 and 2024, Bitcoin’s price trajectory frequently aligned with the model’s projections, earning it substantial credibility and historical reputation. Many investors came to believe that, at the very least, it reveals the underlying logic behind Bitcoin’s long-term value growth.
Sharp Critiques That Can’t Be Ignored
As the market has evolved—especially after the approval of spot Bitcoin ETFs in 2023 and the influx of institutional capital—criticism of the S2F model has intensified. The main objection is that it’s a pure "supply-side model," completely overlooking changes in demand. André Dragosch, Head of Research Europe at Bitwise, points out that institutional demand generated via ETFs now exceeds the annualized supply reduction from the latest halving by more than sevenfold. This unprecedented surge in demand is something the original model cannot account for.
The model assumes that Bitcoin’s store-of-value narrative will always hold and that market demand will steadily grow. However, it cannot price in the effects of macroeconomic downturns, regulatory black swan events, or disruptive technological competition.
Stress Testing the Model in Today’s Market
Bitcoin’s current market status provides a real-time case study for evaluating the S2F model’s relevance. On one hand, after volatility in 2025, the Bitcoin price has entered a consolidation phase between $85,000 and $92,000. On the other, on-chain data shows that despite sideways price action, long-term holders continue to accumulate, and institutional ETF holdings have surpassed the one million BTC mark, creating a structural foundation for demand.
This highlights a new reality: price drivers have become more diverse. Scarcity (supply) remains fundamental, but institutional capital flows, global liquidity cycles, and regulatory clarity (demand-side factors) are playing increasingly pivotal roles.
Relying solely on the S2F model risks overlooking these critical signals. For example, when the price briefly dips below the model’s projection line, it fails to explain whether this is due to short-term liquidity stress, leveraged liquidations, or a fundamental shift in market narrative.
Building a Comprehensive Analysis Strategy Beyond S2F on Gate
For users trading and investing on Gate, the wiser approach is to treat the S2F model as one valuable tool in the toolbox—not as the sole guiding star. A robust analytical framework should be multi-layered and multidimensional.
First, respect the model but don’t follow it blindly. Focus on the major cycle trends after each halving, using them as a backdrop for long-term position management, but never as the basis for short-term trades.
Second, develop a demand-side dashboard. Closely monitor relevant data and insights provided by Gate, including but not limited to: daily net inflows/outflows for Bitcoin ETFs, changes in whale wallet holdings, and overall stablecoin market capitalization.
Finally, incorporate macro and technical validation. Combine global central bank monetary policy forecasts and dollar index strength with Bitcoin’s own on-chain technical indicators (such as MVRV, NUPL) and key support/resistance analysis from Gate’s market pages.
The table below summarizes how to integrate the S2F model with new market realities:
| Analytical Dimension | Traditional S2F Model Perspective | Supplementary Perspective for 2026 |
|---|---|---|
| Core Focus | Supply-side scarcity (stock/flow, halving events) | Balanced supply and demand (add: institutional ETF demand, global liquidity) |
| Data Sources | Blockchain issuance data, historical prices | Gate market data, ETF flow reports, on-chain whale activity, macroeconomic calendars |
| Applicable Scenarios | Ultra-long-term trend judgment (4+ years), value narrative building | Mid-term cycle positioning, position structure management, timing entries with technicals |
| Main Risks | Model oversimplification, assumption failure | Regulatory black swan events, sharp macroeconomic shifts, crypto narrative rotations (e.g., shift to Ethereum ecosystem) |
Institutional Demand
Today, the buying power brought by institutions via spot Bitcoin ETFs has become a force as significant as the halving itself. It’s reshaping the fundamental logic behind Bitcoin’s valuation. The market has entered a new phase: "scarcity as the foundation, demand as the wings." PlanB’s model successfully popularized the scarcity narrative, laying the first theoretical cornerstone for this grand financial experiment.
Now, investors need to build their own analytical frameworks atop that cornerstone, using richer, timelier data and a more open mindset. After all, in a market driven by code, human nature, and capital, the only constant is change itself.
