# How is performance attribution measured?

## How is performance attribution measured?

How to Calculate Performance Attribution

- Locate Sector Weights and Returns of the Portfolio.
- Multiply Sector Weights by Differences in Returns.
- Calculate Aggregate Estimate for Pure Sector Allocation.
- Calculate Sector Weights by Differences in Returns.
- Calculate Aggregate Estimate for Returns.

## Do you compound attribution?

The French group, GRAP, also developed a method to link attribution effects). To summarize, attribution reconciles to excess returns. Unlike the returns themselves, arithmetically derived excess returns don’t compound. Therefore arithmetic attribution effects don’t compound.

**What is a performance attribution report?**

The Performance Attribution Report helps you determine how your asset allocation and selection of securities affects your portfolio’s performance when compared to the performance of the S&P 500 Index.

**How are contributions to returns calculated?**

The contribution calculation is done by multiplying each sector’s weight by its return, and then summing the results.

### What is the Brinson model?

The Brinson model attributes the excess return almost entirely to security selection. In contrast, the risk-based performance attribution indicates excess return is attributable to both systematic risk exposures and security-specific decisions.

### Is Alpha a percentage?

Alpha is commonly used to rank active mutual funds as well as all other types of investments. It is often represented as a single number (like +3.0 or -5.0), and this typically refers to a percentage measuring how the portfolio or fund performed compared to the referenced benchmark index (i.e., 3% better or 5% worse).

**What is the difference between performance and attribution?**

Performance attribution determines how the portfolio manager’s asset allocation and selection of securities affects the portfolio’s performance when compared to a benchmark. Total attribution is the difference between the portfolio’s return and the benchmark’s return.

**What is the difference between contribution and attribution?**

“Attribution” is the idea that a change is solely due to your intervention. “Contribution” is the idea that your influence is just one of many factors which contribute to a change.

#### What is Brinson analysis?

The Brinson model takes an ANOVA-type approach and decomposes the active return of any portfolio into asset allocation, stock selection, and interaction effect. The regression-based analysis utilizes estimated coefficients, based on a regression model, to attribute active return to different factors.

#### How do you calculate asset allocation attribution?

The attribution analysis dissects the value added into three components: Asset allocation is the value added by under-weighting cash [(10% − 30%) × (1% benchmark return for cash)], and over-weighting equities [(90% − 70%) × (3% benchmark return for equities)]. The total value added by asset allocation was 0.40%.

**What is a good beta ratio?**

A beta greater than 1.0 suggests that the stock is more volatile than the broader market, and a beta less than 1.0 indicates a stock with lower volatility. Beta is probably a better indicator of short-term rather than long-term risk.

**What is alpha formula?**

Alpha is used to determine by how much the realized return of the portfolio varies from the required return, as determined by CAPM. The formula for alpha is expressed as follows: α = Rp – [Rf + (Rm – Rf) β]

## How does performance attribution relate to value added?

Performance attribution interprets how investors achieve their performance and measures the sources of value added to a portfolio. To determine success, investors establish a benchmark, which they seek to outperform. Value added is the amount the return achieves in excess of the benchmark.

## How is performance attribution used in the Brinson model?

The Brinson model performance attribution can be described as “arithmetic attribution” in the sense that it describes the difference between the portfolio return and the benchmark return. For example, if the portfolio return was 21%, and the benchmark return was 10%, arithmetic attribution would explain 11% of value added.

**Are there problems with multi-period performance attribution?**

However, arithmetic attribution faces problems in multi-period performance attribution because while benchmark returns and portfolio returns compound over multiple periods, the sum of return differences between a portfolio and a benchmark does not equal the difference between their compounded returns.

**What do you mean by performance attribution in Morningstar?**

Morningstar is known for its analysis of long-only mutual funds, but the Brinson-Fachler analysis is also applicable to hedge ranking funds. The Brinson model performance attribution can be described as “arithmetic attribution” in the sense that it describes the difference between the portfolio return and the benchmark return.