Portfolio value is the value of an account's holdings and cash at a stated time, measured gross or after subtracting account liabilities.
Portfolio value is the value of an investment account’s securities, cash, and other positions at a specific time. A gross portfolio value totals the assets; a net portfolio value subtracts margin loans and other account liabilities. Because providers use labels differently, a reader should verify whether a displayed figure is gross value, account equity, or estimated liquidation value.
A simplified gross calculation is:
Gross portfolio value = cash + receivables + sum of each position's quantity x current value per unit
For an account with liabilities:
Net portfolio value = gross portfolio value - account liabilities
The value per unit may be a last trade, closing price, evaluated bond price, fund net asset value, model estimate, or another approved mark. Those inputs are not equally current or equally realizable.
Assume an account shows the following positions at the close of a reporting date:
| Position | Current value |
|---|---|
| Stocks | $48,000 |
| Bonds, including accrued interest | $31,500 |
| Fund shares | $6,000 |
| Cash | $4,500 |
| Gross portfolio value | $90,000 |
If the account also has a $10,000 margin loan, its net value is:
$90,000 - $10,000 = $80,000
The $90,000 figure describes gross assets. The $80,000 figure describes the investor’s net account equity before any taxes or transaction costs. A brokerage’s estimated liquidation value could differ if it incorporates bid-ask spreads, accrued charges, or other closeout assumptions.
| Measure | Basic meaning | Why it differs |
|---|---|---|
| Portfolio value | Current value of all positions at a stated time | Changes with prices, cash flows, and liabilities |
| Cost Basis | Recorded cost used for accounting or tax purposes | Historical amount, often adjusted by later events |
| Net Asset Value | Assets minus liabilities of an investment company or pooled vehicle | Fund-level measure, often also stated per share |
| Exposure | Amount sensitive to a market or risk factor | Can exceed or differ from current market value |
| Notional amount | Reference amount used in many derivative contracts | Not the same as the derivative’s fair value or maximum loss |
A quoted price is observable, but the last trade may not equal the price available for a large immediate sale. Thin trading and wide bid-ask spreads can make liquidation proceeds differ from the screen value.
Bond quotations may be shown on a clean-price basis that excludes accrued interest. An account-level valuation may add accrued interest to produce a dirty price. Credit changes and infrequent trading can also make evaluated prices less certain than actively traded equity prices.
Mutual funds generally transact at net asset value calculated under their valuation procedures rather than at a continuously quoted intraday market price. Investor.gov defines a fund’s net asset value as assets minus liabilities and explains the per-share calculation.
Options, swaps, futures, and short positions require care. A short position can be shown as a negative market value or as a liability, while a derivative’s notional amount can be much larger than its current fair value. A useful report states both valuation and exposure conventions.
Private equity, private credit, real estate, and collectibles may rely on appraisals or models that update less frequently than public-market prices. The reported value may therefore be an estimate rather than an immediately executable sale price.
A multi-currency portfolio needs a base currency and exchange rates from a defined time. If foreign securities are priced at one market close and converted using an exchange rate from another time, the total may include timing differences. Comparing two portfolio values is meaningful only when the valuation dates, currencies, accrued income, and liability treatment are consistent.
Portfolio value can fall, and valuation estimates may be revised. This page explains measurement concepts and does not recommend any investment or valuation method for a particular account.