The Czech National Bank concluded its landmark bitcoin experiment in February 2026, determining the asset too volatile for foreign-exchange reserves despite evidence of low correlation with traditional holdings. Governor Aleš Michl disclosed the findings at Bitcoin 2026 in Las Vegas on April 29, acknowledging bitcoin’s potential for higher returns while emphasizing extreme downside risk.
CNB’s $1 Million Bitcoin Test and Findings
The Czech National Bank became the first central bank worldwide to purchase bitcoin for testing when it acquired $1 million in October 2025. The decision marked a watershed moment for institutional adoption of digital assets by monetary authorities. The subsequent portfolio study, conducted through February 2026, examined how bitcoin’s price movements correlate with conventional reserve assets like stocks and bonds. CNB researchers found bitcoin exhibited low long-term correlation with traditional holdings, suggesting potential diversification benefits without proportional risk increases.
Volatility Concerns Override Diversification Benefits
Despite theoretical portfolio advantages, CNB’s Bank Board rejected bitcoin as a reserve asset in February 2026. Michl articulated the decision plainly: bitcoin’s price could fall to zero, making it unsuitable for assets backing national monetary stability. His coffee purchase illustration captured the volatility: a bitcoin transaction from an earlier period now valued at approximately $350, demonstrating both appreciation and the asset’s unpredictable nature. The governor noted bitcoin resembles venture capital in return profile but remains far more liquid, a distinction that did not alter the reserve decision.
Central Bank Caution Signals Broader Reserve Strategy Debate
CNB’s rejection reflects institutional risk management priorities distinct from retail or corporate investors. Central banks prioritize capital preservation and liquidity for emergency interventions over return maximization. The decision contrasts sharply with El Salvador’s 2021 adoption of bitcoin as legal tender, yet aligns with most major monetary authorities’ conservative stance. Michl’s candid assessment at a pro-bitcoin conference demonstrates willingness to engage seriously with digital assets while maintaining prudent fiduciary standards for public reserves.
What Comes Next for Digital Asset Evaluation
CNB’s study closes without a path toward bitcoin reserves but leaves the blockchain research door open. The $1 million experiment generated institutional data on digital asset behavior under central bank conditions, useful for future policy decisions. Whether other central banks follow CNB’s testing model remains unclear, though the precedent suggests serious evaluation may precede any mainstream adoption. Bitcoin’s volatility profile, underscored by Michl’s blunt language, will likely remain the central barrier to reserve deployment.
