Chapter 1

Part A: Foundations

Overview of portfolio management

Last updated November 20267 sectionsabout 7 min read

Key takeaways

A portfolio perspective judges each investment by what it adds to the whole portfolio's risk and return, not by its risk and return in isolation.
Passive management aims to match a benchmark, active management aims to beat it, and semi-active management (enhanced indexing) stays close to the benchmark while taking limited, controlled active positions.
Investors differ in what they need: a defined benefit plan must meet a schedule of obligations, a defined contribution member bears the outcome personally, and an endowment balances current spending against preserving real capital.
Diversification's most important role is defensive: it keeps a single company failure, sector downturn or country crisis from being catastrophic to an investor's total wealth.
The portfolio management process runs in three steps, planning, execution and feedback, and the investment policy statement is written in the planning step.

Portfolio management is the discipline of combining assets into a single coherent whole that serves an investor's objectives better than any of its parts could alone, the central promise being diversification (see Diversification, below): a well-constructed portfolio can offer a better risk-return trade-off than its individual holdings.

The portfolio perspective

A portfolio perspective evaluates any single investment by what it contributes to the whole portfolio's risk and return, not by its risk and return in isolation. An asset that looks risky on its own can reduce overall portfolio risk if its returns move independently of, or opposite to, the rest of the portfolio, exactly the diversification logic developed in Introduction to Finance and Investments and formalised in the chapter on capital market theory.

Portfolio strategies

Passive management

Aims to match, not beat, a benchmark's return, typically by holding the benchmark's constituents (indexing), on the premise that markets are efficient enough (see Introduction to Finance and Investments, on valuation theory) that consistently beating them net of costs is unlikely.

Active management

Aims to outperform a benchmark through security selection or market timing, based on the belief that skill can identify mispricing (developed fully in the chapter on active portfolio management).

Semi-active (enhanced indexing)

Stays close to a benchmark's risk profile while taking limited, controlled active positions to add modest incremental return.

Types of investors

Investor type	Distinctive characteristics and needs
Individual investors	Objectives shaped by personal life stage, risk tolerance and goals (retirement, education); typically taxable, with unique circumstances (see Investment constraints, in the chapter on portfolio planning) mattering heavily
Defined benefit pension plans	Must meet a defined schedule of future obligations to plan members; risk tolerance is a function of the plan's funded status and sponsor's financial strength
Defined contribution pension plans	Risk and outcome borne by individual members, not the sponsor; typically require simple, understandable investment options
Foundations and endowments	Often perpetual time horizons, balancing current spending needs (a spending rule) against preserving real capital for future generations
Insurance companies	Must match assets to policyholder liabilities of a defined risk and duration; typically constrained by regulatory capital requirements
Banks	Manage the spread between the return on assets and the cost of liabilities, with a strong emphasis on liquidity and interest rate risk
Sovereign wealth funds	Government-owned funds with widely varying objectives, from stabilisation to intergenerational wealth transfer

Pooled investment vehicles

Mutual funds

Open-ended pooled vehicles (the collective investment schemes of Regulation of Financial Markets) that issue or redeem units at net asset value.

Exchange-traded funds (ETFs)

Pooled vehicles whose units trade on an exchange like a share (see Regulation of Financial Markets, on exchange-traded funds), typically tracking an index.

Separately managed accounts (SMAs)

An individually owned portfolio managed to a client's own mandate, rather than pooled with other investors, giving more customisation and direct ownership of the underlying securities.

Hedge funds

Pooled vehicles pursuing a wide range of strategies, often with more leverage, short selling and derivative use than a conventional fund, typically restricted to sophisticated or institutional investors.

Buyout / private equity funds

Pooled vehicles that acquire controlling stakes in established private (or take-private) companies, aiming to improve and later sell them.

Venture capital funds

Pooled vehicles that provide capital to early-stage, high-growth-potential companies (see Regulation of Financial Markets, on venture capital companies) in exchange for equity.

Diversification

Diversification, holding assets whose returns do not all move together, reduces a portfolio's risk without proportionally reducing its expected return, since some assets' good outcomes offset others' bad outcomes. Its more important, less glamorous role is defensive: it is what keeps a single company failure, sector downturn, or country crisis from being catastrophic to an investor's total wealth, 'avoiding disaster' rather than merely improving an already-adequate outcome.

The portfolio management process

The portfolio management process runs in three broad steps, planning, execution, and feedback, each with defined components.

Planning step

Understanding the client's needs and investment objectives, then preparing an investment policy statement (IPS), the written document setting out objectives, constraints (see the chapter on portfolio planning) and the strategy the portfolio will follow; its major components are return and risk objectives, constraints (liquidity, time horizon, tax, legal/regulatory, unique circumstances), and the resulting strategic asset allocation.

Execution step

Asset allocation (deciding the mix across asset classes, covered in the chapter on portfolio planning), security analysis (evaluating individual securities within each asset class), and portfolio construction (combining the selected securities into the actual portfolio).

Feedback step

Portfolio monitoring and rebalancing (adjusting the portfolio as markets move it away from its target allocation, or as the client's circumstances change) and performance measurement and reporting (see the chapter on evaluating portfolio performance), closing the loop back into the planning step.

Performance standards

Performance standards exist for the same reason the GIPS chapter of Professional Ethics and Governance exists: to ensure performance is presented fairly, consistently and comparably, so a prospective client evaluating a portfolio manager's track record can trust the figures rather than a selectively favourable presentation.

Exam tip

The three-step process above, planning, execution, feedback, is the paper's organising skeleton: the chapters on risk and return, capital market theory and planning largely serve the planning step, the chapter on active management the execution step, and the chapter on evaluating performance the feedback step.

Self-check

(a) Distinguish passive from active portfolio management. (3 marks)

(b) A defined benefit pension plan and a defined contribution pension plan both invest for retirement. Distinguish how risk is borne under each. (3 marks)

(d) Explain why a portfolio perspective evaluates an investment by its contribution to the whole portfolio rather than in isolation. (3 marks)

Show worked answer

(a) Passive management aims to match, not beat, a benchmark's return, typically by holding the benchmark's constituents. Active management aims to outperform a benchmark through security selection or market timing.

(b) In a defined benefit plan, the plan sponsor bears the risk of meeting a defined schedule of future obligations. In a defined contribution plan, risk and outcome are borne by individual members, not the sponsor.

(d) An asset that looks risky on its own can reduce overall portfolio risk if its returns move independently of, or opposite to, the rest of the portfolio, so its true contribution to risk and return can only be judged in the context of the whole portfolio, not in isolation.