Glossary/Valuation

Fair Value

Also known as Mark-to-market value, Estimated fair value

Fair value is an estimate of the price at which an asset or liability could be exchanged in an orderly transaction between market participants at the measurement date. In investment analysis, the phrase can also describe an analyst’s estimate of intrinsic worth.

Editorially reviewed 2026-07-30

Why fair value matters

Fair-value measurement affects balance sheets, earnings, fund NAVs, risk reports, and investment decisions. Quoted liquid prices are relatively observable, while private assets and complex liabilities require models and judgment. Investors need to distinguish accounting fair value, which follows defined market-participant assumptions, from a proprietary target price based on an analyst’s forecasts and required return.

How it is applied

Valuation prioritizes observable market prices for identical assets, then comparable inputs, and finally unobservable model assumptions when markets are unavailable. Methods include market multiples, discounted cash flow, replacement cost, and option models. Analysts document valuation date, unit of account, principal market, liquidity, control, and calibration. Independent review and back-testing are particularly important for holdings whose prices cannot be directly observed.

Portfolio example

A listed share has a quoted closing price of $40, generally providing observable fair-value evidence. A private company with similar economics may be valued using peer multiples, adjusted for growth, profitability, control, and marketability, then cross-checked with discounted cash flow. Calling the resulting $40 estimate equally observable would be misleading because model assumptions rather than an executable quote determine it.

How to interpret it

A market price below an analyst’s fair-value estimate can indicate opportunity or an incorrect forecast. Accounting gains from model changes may not represent realized cash. Readers should examine valuation hierarchy, sensitivity, stale inputs, and who controls the process. A narrow range is more defensible for liquid securities than for early-stage, distressed, or highly leveraged assets with uncertain cash flows.

Limitations and common misconceptions

Fair value is not certainty. Markets can be dislocated, comparable companies imperfect, and models sensitive to discount rate and terminal assumptions. Private valuations may be smoothed or influenced by conflicts. Transaction costs and forced-sale conditions may differ from orderly-market assumptions. Accounting and investment definitions can diverge. Governance, independent challenge, scenario ranges, and subsequent transaction evidence improve credibility. Policies should also specify robust stale-price controls, escalation procedures, model ownership, and how conflicts are disclosed to investors.

Sources and further reading