11.2 Portfolio Planning, Policy, and Construction

The portfolio management process

Portfolio management is a repeating three-stage process: planning (understand the client, build the IPS, form capital market expectations, set strategic asset allocation), execution (asset allocation, security analysis, portfolio construction), and feedback (monitor, rebalance, measure and attribute performance). It always starts with the investor's circumstances - never with a product that sounds attractive.

The Investment Policy Statement

The Investment Policy Statement (IPS) is the written governance document that drives every later decision. Level I requires you to classify each item correctly. The IPS has two objectives and five constraints, easily memorized as the constraint mnemonic LTTLU:

A strong IPS is realistic: it does not promise a return capital markets cannot support, avoids vague language like "be aggressive," and is reviewed when facts change. A common exam stem asks you to label an item - e.g., "funds needed in 18 months" is a liquidity and time-horizon constraint, not a return objective.

Required versus desired return

The return objective has two layers. Required return is what the portfolio must earn to fund essential goals - retirement spending, a tuition liability, a pension's promised benefits. Desired return is what the investor would like to achieve beyond that. When the desired return exceeds what the risk tolerance and capital-market expectations can support, the manager must surface the conflict and resolve it by lowering the goal, extending the horizon, saving more, or accepting (and documenting) more risk - never by quietly assuming an unrealistic return.

Note that returns can be stated as pre-tax or after-tax and in nominal or real terms; an exam stem that mentions inflation protection or a tax-deferred account is signalling which version to use. A retiree drawing income usually needs a real, after-tax required return that preserves purchasing power.

Strategic allocation, tactical tilts, and rebalancing

Strategic asset allocation

Strategic asset allocation (SAA) is the long-run target mix across asset classes - equities, fixed income, cash, real assets, alternatives - chosen to match the IPS. Empirical studies (Brinson-type research cited in the curriculum) attribute the large majority of the variation in a portfolio's return over time to its asset-allocation policy rather than to security selection or market timing. That is why SAA, not stock picking, is the dominant Level I lever.

Match the allocation to the investor type:

Tactical asset allocation

Tactical asset allocation (TAA) is a deliberate short-term deviation from SAA weights based on a market view (e.g., overweighting equities when valuations look cheap). It can add value if the manager has skill, but it raises tracking error, transaction costs, and governance risk. At Level I, keep SAA (policy) separate from TAA (views).

Rebalancing discipline

When markets move, weights drift from policy. Calendar rebalancing trades on fixed dates (monthly, quarterly). Percentage-of-portfolio rebalancing trades when a weight breaches a tolerance band (e.g., a 60% equity target with a +/-5% band triggers at 55% or 65%). Rebalancing is inherently contrarian: it sells the assets that rose and buys those that fell, restoring the intended risk level.

A subtle point: rebalancing has a cost-benefit trade-off. Tight tolerance bands hold risk close to target but generate more trades, transaction costs, and taxable gains; wide bands cut costs but allow larger drift from policy risk. Higher transaction costs argue for wider bands, while higher portfolio volatility or lower correlation among holdings argues for tighter bands because drift accumulates faster.

Construction choices make the policy investable: active versus passive vehicles, pooled funds versus separate accounts, public versus private assets, direct securities versus derivatives, and position sizing. Each choice affects cost, transparency, liquidity, taxes, and monitoring. Passive vehicles minimize fees and tracking error against an index; active vehicles seek alpha but add manager risk and higher fees that must be justified. Separately managed accounts allow tax-loss harvesting and customization (for example, screening out a sector the client cannot hold) that a commingled fund cannot.

The exam reward goes to the answer that anchors in policy: if a recommendation ignores liquidity, time horizon, taxes, or risk tolerance, it is weak even when the product sounds sophisticated. Always test the proposed action against the IPS before judging it on its standalone appeal.