Open-Ended Investment Company (OEIC)

U.K. open-ended corporate fund structure that issues and redeems shares as investors enter and leave, with transactions based on fund valuation rules.

An open-ended investment company (OEIC) is a U.K. corporate collective-investment structure that can issue new shares when investors buy and cancel shares when investors redeem. In the FCA Handbook, a U.K. OEIC formed under the OEIC Regulations is called an investment company with variable capital (ICVC).

“Open-ended” describes the changing share capital and investor dealing mechanism. It does not mean the portfolio is low risk, that redemption is always immediate, or that every OEIC follows the same strategy.

Key Takeaways

  • An OEIC is a company, while a unit trust is constituted as a trust.
  • Investors normally transact with the fund through its dealing process rather than trade existing shares on an exchange.
  • Orders are generally priced from the fund’s next applicable valuation under its prospectus and pricing policy.
  • The legal form does not determine whether the portfolio is diversified, passive, liquid, or appropriate for a particular investor.
  • Charges, dilution adjustments, swing pricing, dealing cut-offs, and suspension powers can affect the transaction outcome.

A U.K. ICVC is incorporated under the Open-Ended Investment Companies Regulations and authorized by the Financial Conduct Authority. Its instrument of incorporation and prospectus set out the company’s structure, share classes, investment powers, dealing arrangements, and governance.

An authorized corporate director commonly runs the OEIC’s affairs and appoints or performs investment-management functions. A depositary has asset-safekeeping and oversight responsibilities under the applicable framework. Investors are shareholders in the OEIC rather than beneficiaries under a trust deed.

An umbrella OEIC can contain several sub-funds, each with its own portfolio and objective. It can also offer multiple share classes with different currencies, income treatment, hedging, fees, or investor eligibility.

How Share Issuance and Redemption Work

When net subscriptions enter an OEIC, the company can issue shares and invest the proceeds. When investors redeem, the company cancels shares and pays redemption proceeds under the fund’s dealing terms.

This mechanism generally keeps the share price tied to net asset value rather than to exchange supply and demand. It also means portfolio liquidity must be managed against potential redemptions.

The published price may not be the price an investor receives. A forward-priced fund normally applies the next valuation point after a valid order reaches the dealing process. The prospectus may also permit dilution adjustments, swing pricing, or charges to allocate transaction costs more fairly between dealing and continuing investors.

Worked Example: NAV and Forward Pricing

Assume an OEIC has:

  • assets valued at GBP105 million
  • liabilities of GBP5 million
  • 10 million shares in the relevant class

Its simplified NAV is GBP100 million, or GBP10 per share.

An investor submits a purchase order before the stated cut-off. If the fund is forward priced, the transaction uses the next applicable valuation, not necessarily the GBP10 last shown on a website. If markets move or the fund applies a dilution adjustment before that valuation, the executed price can differ.

This example omits taxes, charges, class-specific adjustments, and detailed valuation rules.

OEIC vs. Unit Trust vs. Investment Trust

FeatureOEIC / ICVCUnit trustInvestment trust
Legal structureCorporate fund with variable capital.Trust-based collective scheme.Closed-ended investment company in common U.K. usage.
Investor interestShares in the company.Units representing beneficial interests under the trust.Exchange-traded company shares.
Entry and exitSubscribe or redeem through the fund’s dealing process.Buy or redeem units through the scheme’s process.Buy or sell shares in the market.
Price anchorFund valuation under stated pricing rules.Fund valuation under stated pricing rules.Market price, which may be above or below NAV.
Capital baseExpands or contracts with net flows.Expands or contracts with net flows.Generally more stable; changes through corporate actions rather than daily redemption.

The comparison is structural. A particular OEIC or unit trust can follow the same investment strategy, and an investment trust can hold similar assets while producing different liquidity and pricing risks.

Costs and Risks to Review

  • Market and credit risk: The underlying holdings can lose value or default.
  • Liquidity mismatch: Redemptions can pressure a fund holding less-liquid assets.
  • Valuation risk: Stale prices, models, or fair-value judgments can affect NAV.
  • Dilution and dealing costs: Portfolio transactions can impose costs on the fund or redeeming investors.
  • Suspension risk: Dealing may be suspended in exceptional circumstances under the rules and prospectus.
  • Currency and class risk: Hedged and unhedged share classes can behave differently.
  • Fee risk: Ongoing charges, performance fees, transaction costs, and platform costs reduce investor returns.

How to Evaluate an OEIC

Check the exact legal name and FCA register entry, then review:

  • prospectus and instrument of incorporation
  • fund and share-class objective
  • latest key-information document and periodic report
  • authorized corporate director, investment manager, and depositary
  • valuation point, order cut-off, settlement, and redemption terms
  • dilution adjustment or swing-pricing policy
  • portfolio liquidity, derivatives, borrowing, and concentration
  • ongoing charges and other investor-level costs

There is no universal minimum investment for an OEIC. The amount depends on the fund, share class, platform, account, and distribution channel.

This page provides general U.K. financial education, not personalized investment, legal, or tax advice. FCA authorization does not guarantee performance, liquidity, or suitability.

Official Resources

  • Unit Trust: Open-ended trust structure that performs a similar pooling function through a different legal form.
  • Investment Trust: Closed-ended company whose shares can trade at a premium or discount to NAV.
  • SICAV: Variable-capital corporate fund form used in several European jurisdictions.
  • Net Asset Value: Portfolio value used in OEIC share pricing.
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