Rolling Sharpe Ratio
Rolling Sharpe Ratio of Bitcoin returns. Identifies sustained periods of strong risk-adjusted performance and the exhaustion phases that follow.
What is it?
Rolling Sharpe Ratio calculates Bitcoin's Sharpe ratio over a 365-day rolling window, annualised. The formula is (daily mean return / daily volatility) × √365, with the risk-free rate set to 0 for a pure crypto view (the reading then reflects raw risk-adjusted performance, without bias introduced by sovereign rates that vary across cycles). This long window filters short-term noise and reveals structural trends in risk-adjusted performance. A Sharpe > 1 means Bitcoin delivers excess return greater than its volatility on an annualised basis.
How to read
Sharpe > 2.0: exceptional performance, historically unsustainable beyond a few months. Sharpe 1.0-2.0: healthy bull market with good risk compensation. Sharpe 0-1.0: positive return but dominant volatility. Sharpe < 0: 365-day return is negative - confirmed bear market. Prolonged high Sharpe phases (> 1.5 for > 6 months) are extremely rare and systematically precede major corrections.
Key zones
Sharpe peaks (> 2.5) have historically coincided with the 3-6 months following halvings: returns are maximal and volatility has not yet exploded. Sharpe troughs (< -1.5) mark terminal capitulation zones. Sharpe's return above zero after a prolonged negative phase has historically coincided with cycle reversals, although the sample remains limited to 4 cycles.
What to observe
Sharpe slope is more informative than its absolute value. A Sharpe rising even slowly indicates structural improvement in return quality. A Sharpe declining rapidly from a peak marks accelerating degradation - volatility is increasing faster than returns progress. Are Sharpe > 1 phase durations shortening across cycles? This is an open debate in the quantitative community.
Historical context
Bitcoin's 365-day rolling Sharpe reached its all-time maximum in December 2013 (~3.5), reflecting the parabolic rise from $13 to $1,100. Subsequent cycles show declining peaks: ~2.8 (2017), ~2.2 (2021), suggesting gradual normalisation toward levels closer to performing traditional assets. For context, the S&P 500 index averages a Sharpe of ~0.5 over 30 years.
Expert notes
Risk-free rate choice significantly impacts interpretation in a multi-asset portfolio context. Trinity uses the rf=0 convention for a pure crypto view: the reading then reflects raw risk-adjusted performance, without bias introduced by sovereign rates that vary strongly across cycles (rates near 0 during 2020-2021, above 5% during tightening cycles). The calculation uses arithmetic daily returns annualised by √365 (a valid approximation for small returns). Potential survivorship bias exists as Bitcoin is the only crypto asset with a sufficiently long history for a meaningful 365-day Sharpe.
Common mistakes to avoid
Sharpe ratio assumes normal return distribution, which is false for Bitcoin (fat tails, skewness). A Sharpe of 2.0 for Bitcoin does not carry the same meaning as for a bond portfolio. Extreme events (FTX, COVID) are not well captured by Sharpe as they fall outside the distribution. Beyond that, a high rolling Sharpe is mechanically self-correcting: one correction suffices to drop the 365-day return and thus the ratio, making it a lagging indicator for tops.
Programmatic access
REST API
curl -sS \
'https://api.trinityinsights.io/api/v1/onchain/metrics/sharpe-ratio-rolling/data?timeframe=90d' \
-H 'X-API-Key: $TRINITY_API_KEY'MCP server
{
"tool": "get_chart_value",
"metric_id": "sharpe-ratio-rolling",
"timeframe": "1y"
}Required tier: pro. See the pricing grid for the tier list and the MCP documentation for multi-client configuration.
Related metrics
Institutional disclaimer
Trinity Insights is an educational and analytical tool. The metric above does not constitute investment advice. Trinity Insights is not a Crypto-Asset Service Provider (CASP) registered under MiCA Regulation (EU) 2023/1114. See the full disclaimer.