Go to Investment Week homepage
  • Site search
  • Job search
  • Subscribe
  • Newsletter
  • Mobile
  • RSS
  • Home
  • News
  • Opinion
  • Fund Manager Views
  • Interviews
  • Sector Analysis
  • Features
  • Events
  • Audio/Video
  • Jobs
  • Research Centre
  • Share Centre
  • About us
  • Contact us
  • Advertise
  • UK
  • Global
  • Fixed Income
  • Managed
  • Specialist
  • Markets
  • Goslings Grouse
  • Contrarian Investor
  • Leader
  • The Alchemist
  • The Big Interview
  • Fund Manager Focus
  • Funds to watch (RADAR)
  • Practical
  • Technical
  • The Big Question
  • Conjecture
Where am I? breadcrumbs arrow image Home breadcrumbs arrow image  Feature breadcrumbs arrow image Investment

FEATURE - INVESTMENT

The use of scenario-based modelling

31 May 2010 | 09:00
Phil Mowbray

Categories: Investment

Topics: Portfolios | Technical

path
  • Tweet

The challenge of client-focused investment is coming into starker focus as packaged investment solutions such as model portfolios and target date funds are becoming increasingly popular

The fact an investor’s cashflow requirement or liability forms the basis for any investment strategy is often overlooked or misunderstood.

For a defined benefit pension fund, this cashflow is usually a stream of salary-linked pension payments to retired ex-employees. An insurance company operating with-profits business may need to make a series of guaranteed payments to policyholders at specified dates. A 60-year-old retail investor may use their accumulated fund to generate an annual income of 5% of initial capital over a retirement period of 20 years. A 30-year old might regard their investments as a rainy-day fund.

There are many other examples, but the important common factor is these retail and institutional investments all incorporate some defined cashflow or liability.

Volatility: uses and abuses

Given the cashflow requirement or liability is integral to any client-focused investment strategy, it seems strange most investment processes continue to rely on risk measures such as volatility.

Volatility and tracking error are used to assess the risk a fund manager has taken in order to generate return or ‘alpha’ within a portfolio. Since cashflows are usually outside the fund manager’s control, these time-weighted risk measures have been deliberately designed to remove the impact of the size and timing of cashflows. However, the use of volatility and tracking error has been extended into many aspects of the investment process, including asset allocation, product design and fund rating.

While volatility or tracking error may be useful tools for assessing the past performance of an active fund manager, ignoring the cashflow or investment objective is liable to be inappropriate for the purpose of designing client-focused investment solutions.

Client cashflows create path-dependent risks

Let’s go back to our 60-year old retirement investor: we will assume he has accumulated investments of £100,000 and wants to draw down an income of £5,000 at the start of each year. Assuming the investments generate a fixed annual return of 5% (the lower rate of return in a standard FSA deterministic pension projection), these will meet his income requirements – there would be around £90,000 remaining after 20 years of withdrawals. But no investment fund returns exactly 5% every year. In Figure 1, we compare the fixed 5% return with two alternative 20-year scenarios.

Scenario 1: Fixed 5% annual return (“lower rate” FSA deterministic illustration).

Scenario 2: 10% return for first 17 years, 20% fall for last three years (bad return sequence in last three years).

Scenario 3: 20% fall for first three years, 10% return for last 17 years (bad return sequence in first three years).

The key point is the ‘time-weighted’ return (total return over the 20-year period) is the same in all three scenarios – exactly 5%. The difference between the three scenarios is the sequence of returns.

In the absence of any cashflows, these three scenarios would produce exactly the same outcome: the initial fund of £100,000 would grow to £260,000 after 20 years. However, the fact the investor is drawing an annual income of £5,000 means the sequence of returns has a dramatic impact on the outcome. While the income can be comfortably supported for 20 years under a fixed deterministic return, under scenario three the fund runs out completely after 17 years.

There are a few important points to take away from this example:

  • When selecting an investment strategy or product to fit the client’s risk profile, we should use a measure of risk which accounts for the fact the outcome depends on the sequence of returns.
  • The total return over the period – eg whether it is 5%, 7% or 9% – is much less important.
  • Customers and advisers relying on time-weighted risk measures or deterministic return scenarios are likely to significantly underestimate the risk in a given investment strategy.
  • Conventional time-weighted risk measures like volatility or tracking error are not useful for designing or selecting an appropriate investment strategy given this type of cashflow profile.

A fund-rating paradox

Having used a scenario-based approach to select an investment strategy that matches the client’s investment objective and risk profile, fund ratings may be used to help select funds.
Generally, these fund ratings will use historic returns to estimate various metrics such as expected return, volatility, risk-adjusted return, and for active funds a tracking error versus a defined benchmark.

Let’s assume our retirement investor had decided to invest 100% of his assets in UK equities. Suppose he then had a choice between the three funds listed in Figure 2.

On the face of it, this looks like a ‘no-brainer’: Fund 2 is outperforming the index and has a lower tracking error. Fund three is underperforming the index and has a higher tracking error.
Faced with this information, the ratings are intuitive and most investors would immediately rule out Fund 3.

But going back to our previous analysis, we saw the client cashflow was most susceptible to a bad sequence of market returns over the first three years of the 20-year investment term – Scenario 3. In this scenario, Fund 2 will underperform over the first few years, while the defensive fund actually delivers slightly higher returns.

The outcomes for the investor are shown in Figure 3. Given the investment objective, Fund 3 is likely to be a better choice than either Fund 1 or Fund 2. Without taking client cashflows into account, the fund data would have led to a very different answer!

Application of scenario-based asset models

In practice, scenario-based asset liability modelling allows us to calculate risk measures that take into account different possible sequences of returns when designing client-focused investment solutions. There are two methods for creating economic scenarios (see Figure 4).

Implications for investment management

This challenge of client-focused investment is coming into starker focus as packaged investment solutions such as model portfolios and target date funds are becoming increasingly popular. These propositions are targeted at particular customer needs and as a consequence embed some element of advice. The marketing message is moving away from pure performance to robust governance.

From a regulatory perspective, the FSA has repeatedly emphasised the need to ensure products are designed in accordance with customer needs through its increasingly robust enforcement of Treating Customers Fairly.

Scenario-based models offer a reliable tool for designing investment products that do what they say on the tin. Over the last 12 months, we have seen the market waking up to this challenge – many of our partners and clients have committed significant resource to embedding scenario-based modelling into their product design and communication processes.

However, those organisations represent a small number of market leaders – there is still a long way to go before the majority of UK investors will experience truly client-focused investment products.

Phil Mowbray, head of product risk at Barrie & Hibbert

Figure 1:

p45figure1

 

 

p45figure1

Figure 3:p45figure3

 

 

p45figure1

  • Print
  • Share
  • Comment
  • The use of scenario-based modelling

More investmentnews

  • Attack of the arbs: The trusts at risk from activists

  • FTSE retreats from six-month high as Greek debt talks stall

  • S&P downgrades Egypt

  • Woodford ditches Tesco as Buffett buys

Email alerts

  • Get similar articles direct to your inbox

Related information

Recommended reading

  • Pinakin Patel joins JPMorgan

  • Rogers wary of US equities despite roaring markets

  • Cameron threatens to veto EU treaty; Greece passes austerity budget

  • SWAG: the industry's latest acronym

  • Conjecture: High Yield Bonds

Categories

  • Investment

Topics

  • portfolios

  • Technical

Categories: Investment

Topics: Portfolios | Technical

  • Comment
  • Email to a friend
  • Print

COMMENTS

There are no comments submitted yet. Do you have an interesting opinion? Then be the first to post a comment.Post a comment

MOST COMMENTED ARTICLES

  • Spurs boss Redknapp cleared of tax evasion charges

  • FATCA: US Treasury updates proposals to ease burden

  • Woodford ditches Tesco as Buffett buys

  • Buffett: Bonds should come with a health warning

  • Investors 'twice as likely' to choose active funds over trackers - Lipper

AUDIO/VIDEO

  • Conjecture: High Yield Bonds

  • Conjecture: Global Emerging Markets

  • VIDEO: Why Japan is set for a recovery in 2012

  • Conjecture: Global Equities

  • Conjecture: Fixed Income

THE BIG QUESTION

fragment image

Every week, we ask the experts for their views on the latest topics in the industry

  • View all

EVENTS

  • fund5live

  • Senate Spring Investment Conference

  • Absolute Returns Focus 2012

  • Most read
  • Popular topics
  • Related articles
  • Why the eurozone has more than 12 months left

  • Rogers wary of US equities despite roaring markets

  • SWAG: the industry's latest acronym

  • Pinakin Patel joins JPMorgan

  • Conjecture: High Yield Bonds

  • Close Brothers
  • IMF
  • Inflation
  • Italy
  • Portugal
  • Schroders
  • Spain
  • US
  • Warren Buffett
  • eu
  • Revealed: The 20 most consistent funds over three tough years

  • LGIM's Ellis: Why RDR spells end for 1.5% AMCs

  • Revealed: OBSR's top special situations' funds

  • FMYA 2011 shortlist announced

  • What's so special?

EDITOR'S CHOICE

1 2 3 4

hale-clive

View from the Bridge: Investment biker

Being a long time motorbiker, I am very conscious of the ever present threat that comes from being unaware of what is in front of you.

Jupiter tops Alpha Manager provider list

Jupiter Unit Trust Managers employs the most FE Alpha Managers with 12 on the newly revealed list for 2012.

lawrence-gosling

Gosling's Grouse: Baying for blood

When a phlebotomist sticks a needle in a vein you pay attention. He or she has you just where they want you.

obama-concerned

FDR, Reagan, Clinton or Obama: When were markets strongest?

Three years into Barack Obama's term as US president, how do equity market returns under this administration compare with those seen under previous leaders?

DIGITAL EDITION

fragment image

Investment Week digital edition

Register now to receive Investment Week in your inbox.

@INVESTMENTWEEK

fragment image

Follow IW on Twitter

Sign up to have all Investment Week's news and analysis tweeted straight to your timeline.
  • Home
  • News
  • Opinion
  • Fund Manager Views
  • Interviews
  • Sector Analysis
  • Features
  • Events
  • Audio/Video
  • Jobs
  • Research Centre
  • Share Centre
logo

© Incisive Media Investments Limited 2012, Published by Incisive Financial Publishing Limited, Haymarket House, 28-29 Haymarket, London SW1Y 4RX, are companies registered in England and Wales with company registration numbers 04252091 & 04252093

  • Site search

sponsored by

Site Credentials:

  • Contact us
  • About Incisive Media
  • Privacy policy
  • Terms & Conditions
  • Accessibility
  • Sitemap

Related websites:

  • IFAonline
  • Professional Adviser
  • Mortgage Solutions
  • Retirement Planner
  • ETFM
  • International Investment
  • Professional Pensions
  • Global Pensions

Jobs:

  • Director/Executive jobs
  • Investment Adviser jobs
  • Investment Analyst jobs
  • Portfolio Manager jobs
  • Private Client Stockbroker jobs
  • Wealth Manager jobs

Accreditations:

  • Digital Publisher of the Year 2010
Tweet