Unrealized gain
What is Unrealized gain?
An unrealized gain is the increase of an asset's current measured value above its cost basis while the position remains held.
An unrealized gain can create future tax exposure but is not a tax bill in every regime. Dashboards should distinguish embedded gain from estimated liability and avoid subtracting hypothetical tax from ordinary performance unless the methodology, investor profile, liquidation assumption, and jurisdiction are explicit.
For concentrated positions, show the gain beside portfolio weight, downside scenarios, liquidity, and estimated transition cost so the attractive tax deferral does not conceal growing investment risk.
Measurement
The amount depends on current value, basis, currency, pricing source, and valuation date. Listed securities may use a closing or real-time market price, while private assets rely on estimates. Bid, midpoint, last trade, and model value can differ. An unrealized gain is therefore a measurement under a policy, not guaranteed sale proceeds.
Relationship to return
Unrealized appreciation contributes to total investment return even though the asset has not been sold. When it is later realized, prior return should not be counted again. Income, fees, foreign exchange, and cash flows remain separate components. A large unrealized gain can coexist with weak recent performance if appreciation accumulated in earlier periods.
Tax implications
Many systems do not tax ordinary unrealized gains until a realization event, but mark-to-market regimes, derivatives, funds, deemed disposals, and wealth or exit taxes can differ. Basis and tax rates can also change. Estimated deferred tax is scenario-dependent and should not be presented as a certain liability without relevant investor facts.
Portfolio decisions
Embedded gains can discourage rebalancing and create lock-in, concentration, or outdated exposures. Deferral has value because capital remains invested, yet the benefit must be weighed against downside risk, diversification, fees, and future rates. Donation, transition management, staged sales, hedging, or account location may offer alternatives under applicable rules.
Practical reporting
Show unrealized gain by lot and security with basis coverage, age, holding period, currency, and valuation quality. Separate price, currency, and basis adjustments. Flag stale or estimated marks. Avoid describing appreciation as spendable cash or subtracting hypothetical tax from all users. Reconcile realized transitions so gains do not disappear or duplicate.
Also known as: paper gain
Sources and further reading
- Capital Gains and Losses, Internal Revenue Service
- Basis of Assets, Internal Revenue Service