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Best Practice Manual

Asset and Portfolio Management

A practical manual on asset and portfolio management covering objectives, allocation, rebalancing, risk monitoring and reporting.

Finance · By vaayaa Editorial Team · Updated Oct 30, 2026

01Purpose and scope

  • This manual supports the course Asset and Portfolio Management. It describes how practitioners who oversee investment holdings for individuals, foundations, pension plans, endowments or corporate treasuries plan, monitor and report on what they own and why they own it.
  • The scope covers the recurring work of managing a set of assets against a stated objective. That includes recording holdings accurately, setting target allocations, rebalancing when markets move, measuring risk and return, and explaining results to the people who own the money. It does not cover deep security research, trade execution mechanics or tax preparation, although each of those touches the daily work described here.
  • This guidance does not replace qualified professional judgment, approved investment procedures or the authorization required by your firm, trustee board or regulator. Investment decisions for fiduciary, regulated or client accounts must be made by licensed or authorized people working under the mandate that governs the account.

02Core principles

  • Start with the objective. Every holding, allocation and trade should trace back to a written mandate, usually called an investment policy statement or similar document. That document states the return requirement, the tolerable risk, the time horizon, liquidity needs, legal or tax constraints and any restrictions on holdings. When the mandate is vague, the manager will fill the gap with personal preference, and that is hard to defend later.
  • Separate asset management from portfolio management, even when one person does both. Asset management concerns each individual position: custody, valuation, income collection, corporate actions, maturities and lifecycle events. Portfolio management concerns how those positions combine to meet the objective, including diversification, exposure to factors or sectors, and the cost of holding them. A position can look sound on its own and still push the portfolio beyond its risk budget.
  • Treat risk as a budget rather than a single number. A portfolio may have a target volatility, a maximum drawdown tolerance, a limit on single-issuer concentration or a floor on liquidity. Each of these limits constrains what the manager can do. Measure them consistently and say which measure is being used, because two reports with the same label can calculate risk differently.
  • Records must reconcile to independent sources. The custodian statement, the internal holdings ledger and the valuation report should agree on quantities, prices and cash balances. Where they do not, the difference is not a minor clerical issue. It is the first sign that a trade was missed, a corporate action was misapplied or a price was stale.

03Planning and preparation

  • Before any analysis, collect the governing documents. These include the mandate or trust deed, the current investment policy statement, any side letters or client instructions, the custody agreement, the valuation policy and the list of approved instruments. Confirm who has authority to approve changes and what thresholds require committee review. Many errors in this field come from acting on an outdated version of the mandate.
  • Define the data you need and where it comes from. Holdings usually come from the custodian through a daily or monthly file, supplemented by trade confirmations and internal entries for private or illiquid assets. Prices may come from an approved pricing vendor, a stock exchange feed or a manager's valuation for assets without a market price. Decide the hierarchy of sources in advance, so that a conflicting price does not get resolved by whoever happens to be looking at it.
  • Identify the stakeholders and their decision rights. The owner or beneficiary sets the objective. A trustee board, investment committee or chief financial officer often approves the strategic allocation. The portfolio manager proposes changes, the risk function monitors limits, compliance checks restrictions, and operations or fund administration maintains the books. The auditor and any external performance reviewer will later test what was done, so plan the evidence trail from the start.
  • Recognize how the setup changes by context. A single-family office with one principal can move quickly and may accept a looser approval process, but the same speed can hide concentration risk. A pension plan has trustees, actuarial liabilities, funding ratios and long governance cycles, so changes are slower and reporting is more formal. A corporate treasury may be bound by liquidity needs and accounting classifications. The core tasks are similar, but the trade-offs between speed, control and cost are not.

04Recommended workflow

  1. 1
    : Confirm the mandate and the current policy. Read the investment policy statement and note the strategic target weights, the permitted ranges around each target, the benchmark or benchmarks, the liquidity requirement and any restricted securities. Record the date the mandate was last approved and the name of the approver in the working file.
  2. 2
    : Reconcile holdings and cash. Compare the custodian file with the internal ledger for quantities, cost basis, accrued income and cash. Investigate every break above the tolerance set in the valuation policy. Do not analyze performance until the starting position is correct, because performance figures built on a wrong base are misleading in both directions.
  3. 3
    : Value the portfolio. Apply the approved price source to each holding and document any manual valuation. For private equity, real estate, infrastructure or thinly traded bonds, record the method, the inputs and the person or committee that approved the value. Note any stale prices and their age. Calculate market value and weights by asset class, sector, geography, currency and issuer.
  4. 4
    : Compare actual allocation with target and limits. Identify drift from target weights, breaches of permitted ranges and exposures that exceed single-issuer or sector limits. Also check whether the liquidity profile still covers expected cash needs over the next several months. Distinguish between drift caused by market movement and drift caused by trades or contributions, because the response to each is different.
  5. 5
    : Decide whether to act. A drift outside the permitted range usually triggers a rebalancing proposal, but a small drift may be better left alone if trading costs, taxes or market conditions make action expensive. Write down the decision, the alternatives considered and the reason for the choice. If the change alters the strategic allocation, route it to the approving body rather than implementing it as an operational adjustment.
  6. 6
    : Prepare and execute the trades. Build the trade list with target quantities, expected cost and cash impact. Check the list against restrictions and approved instruments. Send orders through the approved channel, confirm fills against the broker or custodian, and update the ledger the same day. Where the portfolio uses a rebalancing band, time trades so that they correct the drift rather than overshoot it.
  7. 7
    : Report and record. Produce a report that shows the holdings, allocation versus target, risk measures, performance against the benchmark, cash flows, fees and any exceptions. Explain material changes in plain language. Retain the working papers, approvals and reconciliation evidence according to the retention rules that apply to the account and your jurisdiction.

05Quality checks, risk controls and compliance

  • Build checks into the process rather than adding them at the end. Common controls include a four-eyes review of valuations above a set size, automated limit monitoring that flags breaches before trades are placed, and independent review of price overrides. Separate the people who initiate trades from those who confirm settlement and record the transactions. When the same person can initiate, approve and book a transaction, errors and misconduct become harder to detect.
  • Monitor exceptions as a managed list. Each exception should have an owner, a cause, a due date and a resolution. Track how long items stay open. A long-running break in a reconciliation is often a sign of a missing process rather than a single error, and it should go to the process owner for correction.
  • Performance presentation carries its own compliance requirements. If your firm claims compliance with the Global Investment Performance Standards, published by the CFA Institute, you must follow its rules on composite construction, return calculation and disclosure. Claims of compliance without the required process are a serious problem. If you are subject to securities regulation, the current rules are set by the relevant regulator, such as the Securities and Exchange Commission for registered advisers in the United States, and you should consult the current text rather than relying on summaries.
  • Ethics and conduct rules also apply. The CFA Institute Standards of Professional Conduct address duties to clients, fair dealing and conflicts of interest, and many firms adopt similar codes. Personal trading by staff, allocation of trades among accounts and the receipt of gifts are typical areas where these rules matter in practice. Tax, legal and regulatory rules differ across jurisdictions and change over time, so confirm the current requirements with qualified advisers and the authoritative source for your location.

06Collaboration and documentation

  • Good documentation is what makes the work reviewable. Keep a decision log that records each recommendation, who approved it, the evidence used and the outcome. Keep a change log for the mandate, the target weights and the valuation policy, since small edits to these documents can alter results substantially. Store versions in a controlled location with clear naming, so that the document in use can be identified for any past date.
  • Hand-offs deserve particular care. When a portfolio manager, analyst or operations specialist changes roles, the handover note should list open reconciliation breaks, pending trades, valuation items awaiting approval and any client instructions in progress. A short, specific note is more useful than a long general one.
  • Working with the owner or client requires clear and regular communication. Agree on the reporting calendar, the format of the report and the escalation path for limit breaches before problems arise. Explain trade-offs in terms the owner can judge, such as the expected cost of holding a concentrated position against the cost of selling it. Avoid presenting a single view as certain when the valuation of an asset depends on assumptions that could change.

07Measures and continuous improvement

  • Track indicators that show whether the process is working. Useful measures include the number of reconciliation breaks at each review and their average age, the number of valuation overrides, the share of days the portfolio stayed within permitted ranges, the time taken from breach detection to decision, the tracking error against the benchmark, turnover and total cost of trading, and the on-time delivery rate for reports. Set targets for these measures in the governance documents rather than inventing them for each review.
  • Review performance attribution with care. A portfolio that beats its benchmark may have done so because of allocation decisions, security selection, currency movements or simply a riskier stance. Separate these effects so the committee can see which decisions added value and which were the product of market exposure. Attribution results depend on the chosen method, so state the method used.
  • Use the findings to improve the process. A recurring breach of one limit may point to a target that is inconsistent with the mandate, not to poor trading. A pattern of stale prices for a private asset may call for a more frequent valuation schedule. Record each change to the process, the reason and the date it took effect, and review whether it reduced the problem.

08Common mistakes and how to prevent them

  • The most common mistake is rebalancing to a target that no longer reflects the mandate. Targets can drift out of date when the owner's liquidity needs or time horizon change. Require a review of the strategic allocation at a fixed interval and whenever a material event occurs, such as a large withdrawal, a change in beneficiaries or a new liability.
  • A second mistake is reporting performance on an unreconciled base. Teams sometimes publish returns before cash and positions have been agreed with the custodian, then have to restate them. Make reconciliation a gate that must be passed before performance is calculated.
  • Third, managers often underestimate illiquidity. A holding that looks like a small part of the portfolio may be impossible to sell quickly at a fair price. Check liquidity at the portfolio level, not only at the position level, and test whether the portfolio can meet expected cash needs under adverse conditions.
  • Fourth, valuation overrides are used without evidence. A manual price may be reasonable, but without a documented method and independent review it looks like a way to flatter results. Require written support for every override and track the number of overrides over time.
  • Finally, teams tend to treat the report as the end of the work. The report is the output of a process that should be checked, challenged and improved. Schedule a short retrospective after each quarter in which exceptions, delays and near misses are reviewed and assigned to an owner.

09Practical checklist

  • Confirm the current mandate, investment policy statement and approval dates before starting the cycle.
  • Reconcile custodian holdings, internal ledger quantities and cash balances, and clear all breaks above tolerance.
  • Value every position using the approved source, and document each manual price with method, inputs and approver.
  • Compare allocation with target weights, permitted ranges, concentration limits and liquidity needs.
  • Record the decision on each drift or breach, including the alternatives considered and why they were rejected.
  • Check proposed trades against restrictions, approved instruments and cash availability before submission.
  • Confirm fills, update the ledger the same day and retain the evidence in the controlled file.
  • Issue the report with holdings, risk, performance against benchmark, exceptions and a plain-language summary of changes.
  • Log open exceptions with owners and due dates, and review recurring breaks at the next governance meeting.

10Frequently asked questions

★Learning sources

?Frequently asked questions

How often should a portfolio be rebalanced?

There is no single correct frequency. Many practitioners review drift on a fixed schedule, such as monthly or quarterly, and also act when a position leaves its permitted range. The schedule should be written into the investment policy statement so that the timing is set by the mandate and not by market sentiment.

What is the difference between an investment policy statement and a portfolio strategy?

The investment policy statement is the governing document that sets objectives, constraints, risk tolerance and approval rules, and it is usually approved by the owner or a governing board. The portfolio strategy is the implementation plan that follows from it, including target weights, instrument choices and the timing of trades. A strategy that conflicts with the policy statement needs approval before it is used.

How should a manager handle an asset with no reliable market price?

Use the valuation policy to select a method, such as a recent transaction, an independent appraisal or a model with documented inputs. Record the method, the date of the valuation input and the approver, and have the value reviewed by someone outside the investment team where possible. Disclose the uncertainty in the report, and treat the holding as illiquid when setting cash and rebalancing plans.

Does this guidance cover legal or tax requirements?

No. Legal, tax and regulatory requirements depend on the type of account, the owner and the jurisdiction, and they change over time. Confirm the current rules with qualified legal and tax advisers and the authoritative regulator for your location before making decisions that depend on them.

This manual explains practice in general terms. It does not replace qualified professional judgment, approved procedures or required authorization.

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