Fund anti-dilution tool design and investor fairness record

Fund anti-dilution tool design should explain how transaction costs caused by subscriptions or redemptions are allocated fairly. The method must connect actual portfolio costs, fund terms, governance and investor disclosure. It should not be a percentage selected only because another fund uses it.

The design record gives the manager a basis for choosing, calibrating and reviewing a tool. It also shows how judgement will be challenged when markets are stressed.

Fix the fund population and objective

First, list each fund and share class covered. Record asset strategy, dealing frequency, notice period, settlement period, investor concentration and normal cash levels. Keep different funds separate unless their liquidity and transaction-cost evidence supports one method.

State the purpose in plain language. The manager may seek to protect continuing investors from the cost of a large redemption, protect existing investors when subscriptions require rapid investment, or support both directions.

The current MAS SFA 04-G08 liquidity-risk guidelines should be read against the fund’s legal documents and actual strategy. The record must remain specific to the manager and product rather than turning a regulatory expectation into a generic template.

Identify the dilution cost

Next, start with the assets the manager expects to buy or sell. Record brokerage, taxes, custody charges, settlement costs, foreign-exchange costs, bid-ask spread and estimated market impact. In addition, include the cost of trading less-liquid assets when cash cannot meet a larger flow.

Use more than one flow size. A routine redemption may be met from cash with little market impact. A large outflow may require sales over several days, cross a wider spread or disturb a concentrated market.

However, separate observable charges from modelled estimates. State the source, date, lookback period and any judgement applied. A clean total should not hide weak data.

Compare suitable tools

Possible approaches include swing pricing, an anti-dilution levy, a redemption fee or another mechanism that the fund terms and applicable law permit. Then, compare how each tool starts, who bears the adjustment and whether it fits the product’s dealing process.

A fixed charge is simple but may become stale. By contrast, a variable method can follow market conditions but needs reliable inputs, review and operational capacity. If the team cannot calculate and communicate a tool within the dealing timetable, it may not work in practice.

Do not use an anti-dilution adjustment as a substitute for adequate liquidity management. It allocates transaction cost; it does not create cash or make an illiquid asset liquid.

Design fair activation rules

After that, set the flow measure, threshold, direction and calculation time. Explain whether the tool applies to net flows, gross flows, a share class or the whole fund. State how the method treats in-kind flows, switches and known large orders.

Check cliff effects. Two similar redemptions should not produce sharply different investor results merely because one falls just below a threshold. Consider a graduated method or a documented exception process where appropriate.

Therefore, apply the rule consistently. If the manager retains discretion, define who can exercise it, the evidence required and how the decision considers continuing and transacting investors. Preferential treatment needs a lawful and documented basis.

Connect the tool to the redemption-cost model

For that reason, the adjustment should follow the cost of the expected portfolio action. Use the fund redemption-cost model to identify explicit costs, spreads, market impact and timing effects.

Set a review frequency and an out-of-cycle trigger. Market volatility, a change in portfolio liquidity, a new investor concentration or a change in dealing terms may make the previous calibration unreliable.

Back-test the result against actual trades where possible. Explain material differences. A model that is never compared with execution cannot show whether it still protects investors reasonably.

Make governance operational

Meanwhile, name the preparer, checker and approver. Separate model maintenance from the person who enters a dealing adjustment where staffing permits. Record overrides and failed data feeds.

The MAS information paper on fund-management risk practices provides current supervisory context for governance, monitoring and challenge. Use it with the manager’s obligations under the Securities and Futures Act and the terms of the relevant fund.

Escalate a disagreement about investor fairness to the appropriate committee or board. Preserve the decision and minority view where material.

Align disclosure and operations

In addition, check the constitution, prospectus, information memorandum, subscription documents and investor notices. The tool, discretion and investor effect described to investors should match the method the manager operates.

Test the administrator’s data, timing and system fields. Confirm how an adjustment reaches the net asset value, price, dealing confirmation and accounting records. Include holidays, late orders and corrected prices.

Use examples that investors can understand without publishing sensitive model inputs. Avoid describing the tool as a penalty when it is intended to allocate the cost of the transaction.

Use an investor-fairness record

Review exceptions after each use

Finally, for every activation, keep the flow, cost inputs, calculation, approval and investor communication. Record any override and the reason. Review complaints and pricing corrections for weaknesses in the design.

The MAS 2026 liquidity-guideline implementation guide covers the wider change record. The Singapore VCC launch-readiness guide remains the pillar cornerstone.

Good fund anti-dilution tool design makes cost allocation explainable before a difficult dealing day. The Funds, VCCs and Cross-Border Structures hub connects the wider fund-governance library.