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IME key terms

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Investment Policy Statement (IPS)

A written document that sets the objectives, constraints, risk tolerance, and governance rules for a portfolio, giving the manager a stable mandate and a benchmark for judging whether decisions stayed within agreed boundaries.

Related: Risk Tolerance, Rebalancing
Risk Tolerance

The amount of variability and potential loss an investor can accept, blending the willingness to take risk with the financial ability to absorb it; the lower of the two normally governs the plan.

Related: Risk Capacity, Risk Profiling
Risk Capacity

The objective financial ability to withstand loss without derailing goals, driven by time horizon, income stability, liquidity needs, and the size of the asset base relative to required spending.

Related: Risk Tolerance, Time Horizon
Risk Profiling

The structured process of gathering quantitative and qualitative information about an investor to estimate risk tolerance, usually combining questionnaires, interviews, and behavioral observation, then reconciling the result with objective capacity.

Related: Risk Tolerance, Behavioral Bias
Time Horizon

The period over which money is invested before it is needed; longer horizons generally permit more equity exposure because shortfall risk from volatility declines while purchasing-power risk grows.

Related: Liquidity Constraint, Goals-Based Investing
Liquidity Constraint

A limit on how much of a portfolio must be held in cash or readily tradable assets to fund withdrawals, emergencies, or planned outlays without forced sales of illiquid holdings at unfavorable prices.

Related: Illiquidity Premium, Time Horizon
Goals-Based Investing

An approach that divides a portfolio into sub-portfolios, each funded and risk-managed to meet a specific future liability such as retirement income or education, rather than optimizing one aggregate risk-return tradeoff.

Related: Time Horizon, Liability-Driven Investing
Capital Market Expectations

Forward-looking forecasts of returns, volatility, and correlations for asset classes, built from valuation, economic, and statistical inputs, that feed directly into the asset allocation decision.

Related: Strategic Asset Allocation, Risk Premium
Strategic Asset Allocation

The long-term target mix of asset classes chosen to match the investor's objectives and constraints; it is the primary driver of portfolio risk and return and is revisited only when the IPS changes materially.

Related: Tactical Asset Allocation, Rebalancing
Tactical Asset Allocation

Short-term deviations from strategic weights intended to exploit perceived mispricing or shifting market conditions, typically bounded by policy ranges so the portfolio's risk profile is not fundamentally altered.

Related: Strategic Asset Allocation, Rebalancing
Rebalancing

The discipline of returning portfolio weights to target after market moves, either on a calendar schedule or when weights breach tolerance bands; it enforces selling winners and buying laggards.

Related: Strategic Asset Allocation, Tactical Asset Allocation
Efficient Frontier

The set of portfolios offering the highest expected return for each level of risk, or the lowest risk for each return, given a set of expected returns, volatilities, and correlations.

Related: Diversification, Capital Market Expectations
Diversification

Spreading exposure across assets whose returns are not perfectly correlated so that total portfolio volatility falls below the weighted average of individual asset volatilities without sacrificing expected return.

Related: Correlation, Efficient Frontier
Correlation

A standardized measure between -1 and +1 of how two return series move together; lower or negative correlation between holdings produces greater diversification benefit for a given level of individual risk.

Related: Diversification, Beta
Beta

The sensitivity of an asset's returns to movements in the market portfolio; a beta above one implies amplified market exposure, below one dampened exposure, and the measure captures only systematic risk.

Related: Systematic Risk, Alpha
Alpha

The portion of return not explained by exposure to market or other systematic factors, often interpreted as manager skill or the payoff to active decisions, net of the risk taken to earn it.

Related: Beta, Information Ratio
Systematic Risk

Risk that affects all securities broadly, such as interest rate shifts or recessions, and cannot be eliminated by holding more names; it is the risk for which markets compensate with expected return.

Related: Beta, Diversification
Tracking Error

The standard deviation of the difference between portfolio and benchmark returns, measuring how closely a manager follows the benchmark and how much active risk is being taken.

Related: Information Ratio, Active Share
Information Ratio

Active return divided by tracking error, expressing how much excess return a manager generates per unit of active risk; higher values suggest more efficient use of benchmark deviations.

Related: Tracking Error, Alpha
Active Share

The fraction of portfolio holdings that differs from the benchmark weights; it measures how distinct a portfolio is from its index and complements tracking error in describing active management style.

Related: Tracking Error, Style Box
Duration

A measure of a bond's price sensitivity to interest rate changes, roughly the percentage price change for a one percentage point move in yield, and also a weighted average time to cash flows.

Related: Convexity, Yield Curve
Convexity

The curvature of the price-yield relationship, showing that duration changes as yields change; positive convexity means prices rise more when yields fall than they drop when yields rise.

Related: Duration, Yield Curve
Credit Spread

The extra yield a non-government bond offers over a comparable maturity government bond, compensating investors for default risk, downgrade risk, and reduced liquidity.

Related: Yield Curve, Duration
Yield Curve

A plot of yields across maturities at a point in time; its level, slope, and shape inform duration positioning, carry decisions, and expectations about growth, inflation, and policy rates.

Related: Duration, Credit Spread
Liability-Driven Investing

A framework that selects assets primarily to fund a defined stream of future obligations, managing the surplus between asset value and liability value rather than focusing on standalone portfolio volatility.

Related: Goals-Based Investing, Duration
Illiquidity Premium

The additional expected return investors demand for holding assets that cannot be sold quickly without a price concession, such as private equity, private credit, or real estate.

Related: Liquidity Constraint, Alternative Investments
Alternative Investments

Assets outside traditional public stocks and bonds, including private equity, hedge funds, real assets, and private credit, typically held for diversification, return enhancement, or inflation protection.

Related: Illiquidity Premium, Diversification
Survivorship Bias

The distortion created when a dataset includes only funds or firms that still exist, omitting failures and thereby overstating historical average returns and understating risk.

Related: Backtest Overfitting, Alternative Investments
Backtest Overfitting

The error of tailoring a strategy to historical data so closely that it captures noise rather than a real effect, producing attractive simulated results that fail to repeat out of sample.

Related: Survivorship Bias, Capital Market Expectations
Value at Risk (VaR)

An estimate of the worst loss a portfolio could suffer over a stated horizon at a given confidence level; it says nothing about how severe losses beyond that threshold may be.

Related: Stress Testing, Maximum Drawdown
Stress Testing

Evaluating portfolio losses under specified severe but plausible scenarios, such as a rate spike or credit crisis, to reveal vulnerabilities that statistical risk measures may understate.

Related: Value at Risk (VaR), Maximum Drawdown
Maximum Drawdown

The largest peak-to-trough decline in portfolio value over a period, a path-dependent risk measure that clients feel acutely and that shapes their willingness to stay invested.

Related: Value at Risk (VaR), Stress Testing
Sharpe Ratio

Excess return over the risk-free rate divided by standard deviation, measuring return earned per unit of total volatility; comparisons are only meaningful across similar strategies and periods.

Related: Information Ratio, Alpha
Tax-Loss Harvesting

Selling positions at a loss to offset realized gains or ordinary income, while replacing the exposure with a similar but not identical asset to preserve the portfolio's market positioning.

Related: Asset Location, Tax Drag
Asset Location

Placing tax-inefficient assets, such as taxable bonds, inside tax-advantaged accounts and tax-efficient assets, such as broad equity index funds, in taxable accounts to raise after-tax returns.

Related: Tax-Loss Harvesting, Tax Drag
Tax Drag

The reduction in compound returns caused by taxes on dividends, interest, and realized gains; it widens over long horizons and varies with turnover, holding period, and account type.

Related: Asset Location, Tax-Loss Harvesting
Fiduciary Duty

The legal obligation to act solely in the client's best interest, encompassing duties of loyalty, care, and disclosure, and requiring conflicts of interest to be avoided or fully disclosed.

Related: Suitability Standard, Best Execution
Suitability Standard

A requirement that a recommendation be reasonably appropriate for a client given known objectives and circumstances, a lower bar than fiduciary loyalty because it permits certain conflicts.

Related: Fiduciary Duty, Know Your Client
Know Your Client

The obligation to collect and document essential facts about a client, including goals, financial situation, time horizon, experience, and risk tolerance, before making any recommendation.

Related: Suitability Standard, Risk Profiling
Best Execution

The duty to seek the most favorable terms reasonably available for client transactions, considering price, speed, likelihood of execution, and total cost rather than price alone.

Related: Fiduciary Duty, Soft Dollars
Soft Dollars

Brokerage commissions used to pay for research or services beyond trade execution; permissible only when they benefit the client, are disclosed, and comply with applicable rules.

Related: Best Execution, Fiduciary Duty
Behavioral Bias

A systematic pattern of judgment or decision error, such as loss aversion or overconfidence, that leads investors to depart from rational choices and must be managed in advice and portfolio design.

Related: Risk Profiling, Maximum Drawdown