Concentration limit

Cap exposure to a single issuer, sector, geography, strategy or risk factor using a defined denominator and breach process.

Quick answer

A concentration limit sets the maximum permitted portfolio exposure to a defined issuer, asset, industry, geography, strategy or related group. It supports diversification and liquidity control, while requiring clear aggregation, look-through, valuation and exception rules.

Use the worked example

Meaning and transaction use

An SEC-filed fund document sets an industry concentration limit at 25% of total assets and describes look-through treatment for underlying funds. [S1]

Another SEC filing discloses investor-level limits using liquid net worth and defines the relevant liquid-asset denominator. [S2]

Proposed control method: maintain pre-trade and post-trade exposure tests with documented aggregation, exceptions and remediation deadlines.

Worked example

Illustrative issuer limit only. Assume a 120.0 million portfolio, a 15% issuer limit and current aggregated exposure of 16.0 million.

Scroll the table horizontally to view all columns.

Measure	Calculation	Result
Maximum issuer exposure	120.0 x 15%	18.0m
Current exposure	Given	16.0m
Remaining capacity	18.0 - 16.0	2.0m
Current concentration	16.0 / 120.0	13.3%

The illustrative exposure is 13.3%, leaving 2.0 million of capacity under the 15% limit.

Proposed transaction review process

Define limits

Set categories, denominator, look-through and aggregation.

Map exposures

Capture holdings, derivatives, commitments and related entities.

Test transactions

Run pre-trade capacity and downside scenarios.

Monitor breaches

Record market-driven and active breaches with action dates.

Evidence checklist

Policy

Limits, definitions, exceptions and approval authority.

Holdings

Positions, valuations, ownership and related issuers.

Look-through

Underlying fund, vehicle and derivative exposures.

Monitoring

Capacity, breaches, waivers and remediation records.

Decision framework

Situation	Proposed action
Market moves create a breach	Apply the policy's cure period and risk assessment.
Look-through is unavailable	Use the approved conservative treatment.
A strategic asset is concentrated	Document purpose, liquidity and downside controls.
Related exposures overlap	Aggregate them under the policy definition.

Common errors to check

Using inconsistent denominators.
Ignoring unfunded commitments.
Failing to aggregate related issuers.
Treating limits as diversification evidence by themselves.

Reconcile portfolio concentrations

Bring holdings, commitments and policy definitions to a concentration review. Calculate capacity, look-through exposure and breach actions.

Discuss the transaction

Primary references and editorial scope

SEC filing: Industry concentration and look-through
Example 25% industry concentration restriction and look-through treatment for underlying funds. Reference checked 17 September 2026.
SEC filing: Investor concentration limits
Examples of concentration limits based on liquid net worth and defined liquid assets. Reference checked 17 September 2026.

Editorial qualification

General portfolio education using public United States filings. Figures are hypothetical. Investment policy, legal entities, regulation and mandate terms determine actual limits.

General business information. Obtain advice appropriate to the legal, tax, accounting and financing facts. No offer, lender commitment or transaction outcome is represented. All worked examples use expressly assumed figures. Editorial draft date: 17 September 2026.