Portfolio Construction · Reading 90

Basics of Portfolio Planning and Construction

CFA Level I · Portfolio Construction · Reading 90 · about 41 min

What you'll learn

Module 90.1

Portfolio Planning and Construction

This reading explains why a written investment policy statement matters, what it contains, and how to set risk and return objectives and judge willingness and ability to take risk. It then covers the five investment constraints, the specification of asset classes, the roles of strategic and tactical asset allocation, security selection and risk budgeting, and ESG approaches in portfolio planning.

LOS 90.a — Why a written investment policy statement matters

The investment policy statement (IPS) is the written plan that starts the portfolio management process. Before any security is bought, the manager and client agree in writing on what the client needs, what the client can and will tolerate, and how results will be judged.

A written IPS is valuable for three main reasons:

  • It forces discipline. The client must articulate circumstances, objectives and constraints instead of reacting to the market mood of the day.
  • It keeps goals realistic. High return and low risk are popular wishes but usually incompatible, so the IPS makes the client reconcile return expectations with risk tolerance.
  • It sets a yardstick. Performance is judged against a stated benchmark rather than with hindsight.

An IPS does not pick individual stocks or time the market. It works at the level of objectives, constraints, asset classes and policy.

Common exam traps

  • The IPS comes first in the process; it is not a report card produced at the end.

LOS 90.b — Major components of an IPS

A typical IPS contains the following sections:

Key concept

SectionWhat it covers
Client description / introductionThe client's circumstances and situation
Statement of purposeWhat the IPS is meant to achieve
Statement of duties and responsibilitiesRoles of the client, the custodian and the investment manager
ProceduresHow the IPS is updated and how unforeseen events are handled
Investment objectivesReturn objectives and risk objectives (risk tolerance)
Investment constraintsLiquidity, time horizon, taxes, legal and regulatory, unique circumstances
Investment guidelinesHow the policy is executed: permitted asset types, use of leverage and derivatives
Evaluation and reviewThe benchmark and how results are assessed
AppendicesThe strategic asset allocation (policy portfolio), permitted ranges and the rebalancing policy

The bare minimum. Even a short IPS must contain (1) a clear statement of the client's circumstances and constraints, (2) an investment strategy based on them and (3) a benchmark for evaluating performance. Detailed update procedures are common but are not part of that minimum. Nor is a precise annual target return, although return objectives may still be stated in the IPS, for example as a percentage.

The manager's fee schedule is not one of the IPS components listed above.

Common exam traps

  • Permitted assets and leverage limits are investment guidelines. They are neither objectives nor constraints.

LOS 90.c — Risk and return objectives

Risk objectives translate the client's risk tolerance into specific limits on portfolio risk. Return objectives usually follow from a future financial goal, such as a target level of retirement income. Both can be stated in absolute or relative terms, and a return objective may be set as a percentage or as a currency amount.

Key concept

AbsoluteRelative
Risk objective"Portfolio value must not fall more than 8% in any 12-month period" or, in probability form, "no more than a 10% probability of losing more than 6% in a year""Return must not trail the benchmark index by more than 3% in any year", or a probability of underperforming a benchmark by a given margin
Return objectiveA nominal figure ("at least 6.5% a year") or a real figure ("inflation plus 2.5%")"Beat a stated equity index by 1% a year"; for a bank, a spread over its cost of funds
  • Stating a risk objective as the probability of a given loss does not make it relative. It is relative only if it refers to a benchmark.
  • A return of "inflation plus x%" is still an absolute (real) objective. A limit measured against a market interest rate, such as never earning less than the three-month Treasury bill rate over a calendar year, is a relative risk objective, because that rate serves as the benchmark.
  • Very strict absolute risk objectives, such as no loss in any year, push the portfolio toward guaranteed instruments such as Treasury bills.
  • Peer-group benchmarks (for example, "top quartile of endowments") are not investable: nobody can build that portfolio in advance.
  • Risk and return objectives must be set together and must be compatible. The client's risk tolerance determines which returns are realistically attainable, and a return-only objective can push the client into far too much risk.

Example. A client wants 11% a year but says she cannot accept any calendar-year loss. Portfolios with an 11% expected return in her market carry a standard deviation near 16%. If returns are roughly normal, , so a losing year can be expected about one year in four. The objectives are inconsistent, and the adviser must either lower the return target or relax the risk limit.

LOS 90.d — Willingness versus ability (capacity) to take risk

An investor's overall risk tolerance combines two separate assessments: how much risk the investor wants to take and how much risk the investor's finances can bear.

Key concept

Willingness to take riskAbility (capacity) to take risk
Driven byPsychology: attitudes, beliefs, personality, financial knowledgeFinancial circumstances
Measured byQuestionnaires, interviews (subjective)Analysis of wealth, liabilities, income, horizon
Higher whenInvestor is comfortable with volatilityLong time horizon, large wealth relative to liabilities and spending needs, stable job and income, ample insurance, few dependents

Large near-term spending needs reduce the ability to bear risk, because the portfolio must reliably fund a fixed obligation. The expected rate of return, the level of inflation and the client's tax bracket are not inputs to risk tolerance. Expected return follows from risk tolerance, inflation matters for the return objective, and taxes are a constraint.

The table shows how the two assessments combine into overall risk tolerance.

Combining willingness and ability to take risk
Willingness \ AbilityBelow-average abilityAbove-average ability
Below-average willingnessBelow-average risk tolerance (no conflict)Conflict: educate the client; usually conform to the lower (below average)
Above-average willingnessConflict: ability prevails (below average)Above-average risk tolerance (no conflict)

When the two conflict, the lower assessment governs. With high willingness and low ability, ability prevails, and a portfolio tilted toward bonds rather than equities is appropriate. With low willingness and high ability, the adviser may educate the client and correct misconceptions but should not try to change the client's personality; a portfolio the client is clearly uncomfortable with is unlikely to end well.

Example. A 36-year-old client has a secure salaried job, no debt, savings well above her planned spending and 25 years until retirement. She also says she would sell all her equities if her account fell 10% in a year.

  1. Sort the facts. Job security, wealth relative to needs and the long horizon are financial circumstances, so they bear on ability. Her reaction to a 10% fall is an attitude, so it bears on willingness.
  2. Rate each dimension. Ability is high; willingness is low.
  3. Combine them. The two conflict and willingness is the lower one. The adviser explains how a 25-year horizon can absorb short-term losses, but if her attitude does not change, the portfolio conforms to her low willingness and overall risk tolerance is below average.

Common exam traps

  • Averaging a high willingness and a low ability to reach "moderate" or "average" risk tolerance is a mistake; the lower assessment governs.
  • Re-administering the questionnaire does not fix a low ability to take risk.

LOS 90.e — Investment constraints

The five constraint categories are:

  • Liquidity: the need to turn assets into spendable cash quickly without large price concessions, for example for regular withdrawals, tuition, a planned purchase or insurance claims. High liquidity needs call for cash and short-term bonds; illiquid hedge funds or private equity are unsuitable.
  • Time horizon: often the period until withdrawals begin. Longer horizons allow more risk and less liquidity. A short horizon points to low-risk, liquid assets such as government securities or bank deposits. Short horizons and liquidity needs usually go together.
  • Tax concerns: the investor's marginal tax rate, the different treatment of income and capital gains, and whether accounts are taxable, tax-deferred or tax-exempt. In a fully taxable account, an investor in a high tax bracket may prefer tax-exempt bonds (in the US) or equities whose return is expected to come mainly from capital gains, because gains are commonly taxed more lightly than income. Fully taxed income (corporate bond interest, for example) is best placed in tax-deferred accounts, while long-term capital gains, tax-exempt interest and (where they are taxed favorably) dividends suit accounts without tax deferral. Portfolio choices should compare expected after-tax returns with risk. Selling holdings to diversify can trigger capital gains tax.
  • Legal and regulatory factors: constraints imposed by law or regulators, such as trust and pension rules, minimum payout requirements imposed by statute, limits on asset types or percentages, and restrictions on trading by corporate insiders.
  • Unique circumstances: client-specific preferences or restrictions, often non-financial. Examples are responsible investing exclusions (tobacco, weapons, gambling), religious restrictions (for example, no interest-bearing securities), avoiding a competitor's shares, or diversifying away from an employer's industry.

A handy checklist for a whole IPS is R-R-T-T-L-L-U: Risk, Return, Time horizon, Tax, Liquidity, Legal, Unique. The first two are objectives; the last five are constraints.

Common exam traps

  • A rule the investor chooses is a unique circumstance. A rule imposed by law is legal and regulatory, even if it concerns payouts.
  • A required minimum return is a return objective, even though it reads like a limit on the portfolio.
  • The amount and timing of withdrawals are a liquidity matter. What the client spends the money on once it has left the portfolio is not a constraint at all.

LOS 90.f — Specifying asset classes

An asset class is a group of assets with similar risk and return behavior. For strategic asset allocation the classes should be defined so that:

  • returns are highly correlated within each class, because its members behave alike;
  • returns have low correlation between classes, which is what produces diversification benefits;
  • taken together, the classes approximate the universe of permissible investments in the IPS.

Specify the type of security first, then subdivide. Equities can be split into domestic and foreign, large-cap and small-cap, developed and emerging; bonds into government and corporate, investment grade and high yield, or by maturity. A label such as "emerging markets" or "technology sector" alone is incomplete because it does not say whether the assets are equities or bonds. The traditional classes are equities, bonds, cash and real estate. Alternative investments include hedge funds, private equity, commodities, artwork and intellectual property.

The manager then gathers expected returns, standard deviations and correlations for each class.

LOS 90.g — Portfolio construction and the role of asset allocation

  1. Estimate return, risk and correlation for each asset class and build an efficient frontier of asset-class portfolios.
  2. Choose the efficient portfolio that best matches the objectives and constraints in the IPS. Its weights are the strategic asset allocation (the policy portfolio), the long-term baseline. Rebalancing later moves drifted weights back to these targets; it is not an active strategy and not a tactical decision.
  3. Decide how much active management to add:
    • Tactical asset allocation is a temporary deviation from strategic weights to exploit perceived short-term mispricing between asset classes. For example, a 10% real estate target might currently be held at 13% because property looks cheap.
    • Security selection is a deviation from the index weights of individual securities within a class. For classes without investable indexes (hedge funds, individual properties, art), selection is unavoidable.
  4. Each active strategy may add return, but it also adds risk compared with a passive portfolio of asset-class indexes. Risk budgeting sets a total risk limit and allocates it among strategic allocation risk, tactical allocation risk and security selection risk.

Using several active managers against the same benchmark creates two problems:

  • Their positions may offset, with one overweighting what another underweights. Net active risk is then below gross active risk, and the risk budget is underused.
  • Combined trading may be excessive and tax-inefficient.

A core-satellite approach addresses both. Most of the portfolio (the core) is held passively in index funds, and a smaller satellite portion is actively managed. The success of tactical allocation and security selection depends on real opportunities and on manager skill.

Example (illustrative). A pension fund's strategic asset allocation, grouped by the role each asset class plays in the portfolio:

RoleAsset classTarget weight
GrowthGlobal equities44%
Private equity10%
High-yield credit10%
Downturn hedgingGovernment bonds18%
Cash6%
Inflation hedgingInflation-linked bonds7%
Real estate5%
Total100% (growth 64%, downturn hedging 24%, inflation hedging 12%)

Common exam traps

  • Setting target weights from the client's objectives is strategic asset allocation, even if the weights are aggressive.
  • Changing a weight because the client's tax rate changed is an IPS (strategic) change. Tactical allocation responds to short-term valuation views.
  • Market forecasts do matter, because the efficient frontier is built from expected returns and risks.

LOS 90.h — ESG considerations in portfolio planning

Environmental, social and governance (ESG) approaches:

ApproachWhat the investor does
Negative screeningExcludes specific companies or industries on ESG grounds
Positive screeningInvests in companies with good ESG practices
Thematic investingPicks sectors or companies that advance a specific ESG goal
Impact investingSeeks a financial return together with a positive ESG outcome
Engagement/active ownershipUses shareholdings (votes, dialogue with management) to push for better ESG practices
ESG integrationConsiders ESG factors throughout asset allocation and security selection
  • A negatively screened portfolio should be judged against an index that excludes the same kinds of companies. A broad market index is not an appropriate benchmark for it.
  • Positive screening, thematic and impact approaches need customized portfolios and benchmarks, and often specialist managers.
  • Under active ownership, clarify whether clients will vote their own shares or have the manager vote according to specified ESG factors. Either arrangement is acceptable.
  • The effect on returns is uncertain. A smaller universe and research costs may reduce returns, while good governance and lower ESG risks may raise them.

Bottom line

  • The investment policy statement is the written plan that starts the portfolio management process: it forces the client to articulate circumstances, objectives and constraints, reconciles return expectations with risk tolerance, and sets a benchmark for judging results.
  • At a minimum an IPS describes the client's circumstances and constraints, sets out a strategy built on them and names a benchmark for evaluating performance; permitted assets and leverage limits belong in the investment guidelines.
  • Risk and return objectives can be absolute or relative, a risk objective being relative only when it refers to a benchmark, and the two objectives must be set together so that they are compatible.
  • Willingness to take risk reflects the investor's psychology and ability to take risk reflects financial circumstances such as horizon, wealth relative to needs and income stability; when the two conflict the lower assessment governs, although with high ability and low willingness the adviser may educate the client.
  • The constraints are liquidity, time horizon, taxes, legal and regulatory factors and unique circumstances, a rule imposed by law being a legal constraint and a rule the investor chooses a unique circumstance.
  • Asset classes for strategic allocation should have highly correlated returns within each class, low correlations between classes, and together approximate the universe of permissible investments.
  • The strategic asset allocation is the efficient asset-class portfolio that best fits the IPS, tactical asset allocation is a temporary deviation from it to exploit perceived short-term mispricing, and risk budgeting allocates a total risk limit among strategic, tactical and security selection risk.
  • ESG approaches include negative and positive screening, thematic and impact investing, engagement and ESG integration, and a negatively screened portfolio should be judged against an index that excludes the same kinds of companies.

Quick check

Question 1Core

An adviser explains to a new client why they should agree on a written investment policy statement (IPS) before any money is invested. Which of the following is least likely to be one of the reasons she gives? A written IPS:

Show answer and explanation

Correct answer: A

An IPS works at the level of objectives, constraints, strategy and benchmark. It does not go down to the choice of particular securities, which is a later, implementation decision within the policy the IPS sets.

Why the other options are wrong

  • B. Forcing the client to articulate needs, circumstances and constraints is a central purpose of a written IPS; it imposes discipline on both parties.
  • C. The IPS makes the client reconcile return expectations with risk tolerance, so it does help keep goals realistic and makes the risks of investing explicit.

Key takeaway The IPS is the starting point of the portfolio management process. It sets policy; security selection comes later.

Practice Questions

Question 2Core

A client's IPS lists several investment objectives. Which one is a relative return objective?

Show answer and explanation

Correct answer: C

A return objective is relative when it is expressed against a benchmark, such as an index or a portfolio. Beating a global equity index by a stated margin is therefore a relative return objective.

Why the other options are wrong

  • A. A specific numerical outcome (7% nominal) is an absolute return objective.
  • B. A probability statement about losses is a risk objective. Because it refers to a loss threshold rather than a benchmark it is an absolute risk objective. Stating something in probability terms does not make it relative.

Key takeaway Relative = measured against a benchmark. Numerical targets are absolute; probability-of-loss statements are risk objectives (absolute unless tied to a benchmark).

Question 3Core

Holding everything else constant, which of the following changes would most likely reduce a client's ability to take investment risk?

Show answer and explanation

Correct answer: A

Ability (capacity) to bear risk depends on financial circumstances. Large near-term spending needs are a fixed obligation the portfolio must reliably fund, so the client can afford less uncertainty and the ability to take risk falls.

Why the other options are wrong

  • B. Greater wealth relative to needs and liabilities increases the ability to take risk.
  • C. More insurance protects against unexpected events and so increases the ability to take investment risk.

Key takeaway Wealth, insurance, a long horizon and a secure job raise the ability to bear risk; large spending needs and dependents lower it.

Question 4Core

Which of the following is a characteristic of a well-specified set of asset classes for strategic asset allocation?

Show answer and explanation

Correct answer: B

Properly specified asset classes, taken as a group, should approximate the universe of permissible investments set out in the IPS.

Why the other options are wrong

  • A. Assets within a class should have similar risk and return characteristics, with high correlation within the class.
  • C. Correlations between asset classes should be low, so that allocating across classes provides diversification.

Key takeaway Good asset classes: homogeneous inside, low correlation across, and together they span the permitted universe.

Question 5Core

Which of the following statements about integrating environmental, social and governance (ESG) considerations into portfolio construction is most accurate?

Show answer and explanation

Correct answer: C

When negative screening removes companies or industries from the investment universe, a broad market index no longer reflects what the manager could hold. A more appropriate benchmark is an index that also excludes the companies or industries such investors commonly avoid.

Why the other options are wrong

  • A. The effect of ESG constraints on returns is uncertain: a narrower universe and research costs may reduce returns, but good governance and avoiding ESG-related risks may increase them.
  • B. Investors using engagement/active ownership may vote their shares themselves or direct the manager to vote according to specified ESG factors; either is possible, and the point is to clarify which.

Key takeaway A negatively screened portfolio is better judged against a benchmark that excludes the same companies; ESG effect on returns is uncertain; active ownership voting can be done by the client or delegated.

This reading has 38 questions in the full bank. Practice all of them.

Key Takeaways