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Banking Essentials - Part I

This pathway will walk us through the basics of banks, starting with some of the different types and their main functions, then starting to look at the regulation faced by the banks, both before and after the Global Financial Crisis.

Greenwashing

Greenwashing is the act of distributing false information about something being more environmentally friendly than it actually is.

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Tackling the Cost of Living Crisis

In this video, Max discusses the cost-of-living crisis currently enveloping the UK. He examines its impact on households as well as the overall economy.

CSR and Sustainability in Financial Services

In the first video of this two-part video series, Elisa introduces us to sustainability. She begins by looking at the difference between sustainability and corporate social responsibility, two terms that can be easily confused.

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Risk Factor Attribution Models

Risk Factor Attribution Models

Ali Chabaane

25 years: Investment management

In this video, Ali focuses on another family of attribution models: risk factor attribution models, which provide a significant step up to the Brinson model. 

In this video, Ali focuses on another family of attribution models: risk factor attribution models, which provide a significant step up to the Brinson model. 

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Risk Factor Attribution Models

8 mins 11 secs

Overview

Risk factor attribution models provide a significant step up to the Brinson model, and aim to attribute the performance of a portfolio of securities to the effect of a set of risk factors. These models try to explain the performance of a securities portfolio by decomposing its performance on a set of desired factors.

Key learning objectives:

  • Understand the maths behind risk factor attribution models

  • Outline the three different types of risk factor models and their differences

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Summary

How do the risk factor attribution models work?

The models try to explain the performance of a securities portfolio by decomposing its performance on a desired set of factors. Mathematically, it can be written out as follows:

common factors adjusted by the exposures plus a specific return to that stock. 

What are the three different risk factor attribution models and how do they differ?

The three main risk factor models are: Market factors models, fundamentals models, and statistical models. 

With the market factors models, we use observed market indices or macro-economic factors such as: 

  • A global market index
  • Sector indices
  • Country indices
  • Interest related indices
  • Macro indices such as Oil prices or inflation
  • Some Style indices such as Value or growth

Exposures are estimated through statistical procedures such as regression methods. 

Performance attribution using this method can provide valuable insight into the influence of market factors on achieved performance. 

With fundamental factors risk attribution models an assumption is made that stock prices are mainly influenced by some fundamental characteristics of each underlying company and have some idiosyncratic element that is specific to each stock. These characteristics include: 

  • The country in which the company is operating
  • The sector to which the company belongs
  • The size of the company
  • The valuation level of the company
  • The Value of Growth nature of the company
  • The dividend yield of the company’s stocks
  • The company’s equity price momentum
  • The volatility or the beta of the company’s underlying equity

Exposures of each stock are usually defined by the fundamental characteristics of the stock.

For statistical factors models, both factors and exposures are determined by statistical procedures, which arguably makes these models better in the sense that the model can better fit the data used to estimate them. However, it’s difficult to interpret the outcome as factors and exposures are difficult to relate to known market indicators.

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Ali Chabaane

Ali Chabaane

With over 20 years of experience leading investment teams across equity, fixed income and multi-asset portfolios, Ali is now Managing Director at Fastnet Asset Management which provides portfolio managers with insights on how active performance is generated and how to enhance it. Prior to Fastnet, Ali has previously been Global Head of Portfolio Construction at Amundi, and Head of Credit Risk Methodologies at BNP Paribas.

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