Overview
The Alpha Score is an objective, data-driven metric designed to provide additional context about a portfolio’s historical performance. It measures how a portfolio has performed on a risk-adjusted basis by separating returns attributable to broad market movements and sector exposure from returns that remain unexplained by those factors.
The score is calculated using standardized statistical techniques that are widely used in academic finance and institutional portfolio analysis. It is intended to be informational only and should be considered alongside other data, such as holdings, diversification, and volatility.
How the Alpha Score Is Calculated
1. Historical return analysis
The calculation uses daily historical returns of the portfolio.
2. Market and sector adjustment
Returns are analyzed relative to the overall U.S. equity market and a fixed set of sector and asset-class benchmarks. This helps isolate performance that is due to general market or sector exposure versus portfolio-specific effects.
3. Alpha estimation
The portion of historical returns not explained by market or sector exposure is referred to as “alpha.” This represents past excess return after adjusting for common risk factors.
4. Statistical confidence
The Alpha Score incorporates a statistical measure that reflects how confident the model is that the observed alpha is meaningfully different from zero, rather than the result of random market fluctuations.
5. Track-record adjustment
Portfolios with longer trading histories receive more weight in the score, while very short track records are discounted to reflect higher uncertainty.
6. Relative comparison
Scores are grouped into relative tiers based on how portfolios compare to others on the platform, rather than against a fixed or absolute benchmark.
What the Alpha Score Tells You
- How much of a portfolio’s past performance was explained by market and sector exposure.
- Whether historical performance appears more or less consistent after adjusting for those exposures.
How a portfolio’s risk-adjusted performance compares to others in the same universe over the same period.
What the Alpha Score Does Not Tell You
- Whether a portfolio is suitable for you or your financial situation.
- Whether a portfolio will perform well or poorly in the future.
Whether a portfolio is “better” or “worse” than another in absolute terms.
Risks, Limitations, and Potential Drawbacks
- Past performance only: The Alpha Score is entirely backward-looking and does not predict future results.
- Model dependence: Results depend on the assumptions of the statistical model and the selected market and sector benchmarks. Different models may produce different results.
- Short track records: Portfolios with limited history may have less reliable scores.
- Changing market conditions: A portfolio’s score may change materially as market dynamics evolve.
No personalization: The score does not account for individual goals, risk tolerance, tax considerations, or time horizon.
Important Disclosure
The Alpha Score is provided for informational purposes only. It is not investment advice, a recommendation, or an endorsement of any portfolio or strategy. Customers remain responsible for evaluating investments based on their own circumstances and objectives.
The Alpha Score is provided for informational purposes only. It is not investment advice, a recommendation, or an endorsement of any portfolio or strategy. Customers remain responsible for evaluating investments based on their own circumstances and objectives.