AEMDX Acadian Emerging Markets Debt Fund Insti (MM)

PRINCIPAL RISKS

As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money. A Fund share is not a bank deposit and it is not insured or guaranteed by the FDIC or any government agency. The principal risk factors affecting shareholders' investments in the Fund are set forth below.

EQUITY RISK -- Since it purchases equity securities, the Fund is subject to the risk that stock prices will fall over short or extended periods of time. Historically, the equity markets have moved in cycles, and the value of the Fund's equity securities may fluctuate drastically from day to day. Individual companies may report poor results or be negatively affected by industry and/ or economic trends and developments. The prices of securities issued by such companies may suffer a decline in response. These factors contribute to price volatility, which is the principal risk of investing in the Fund.

INVESTMENT STYLE RISK -- The Fund pursues a "value style" of investing. Value investing focuses on companies with stocks that appear undervalued in light of factors such as the company's earnings, book value, revenues or cash flow. If the Adviser's assessment of a company's value or its prospects for exceeding earnings expectations or market conditions is inaccurate, the Fund could suffer losses or produce poor performance relative to other funds. In addition, "value stocks" can continue to be undervalued by the market for long periods of time.

REIT RISK -- REITs are pooled investment vehicles that own, and usually operate, income-producing real estate. REITs are susceptible to the risks associated with direct ownership of real estate, such as the following:
declines in property values; increases in property taxes, operating expenses, rising interest rates or competition overbuilding; zoning changes; and losses from casualty or condemnation. REITs typically incur fees that are separate from those of the Fund. Accordingly, the Fund's investments in REITs will result in the layering of expenses such that shareholders will indirectly bear a proportionate share of the REITs' operating expenses, in addition to paying Fund expenses. REIT operating expenses are not reflected in the fee table and example in this Prospectus.

ROYALTY TRUST RISK -- The Fund may invest in royalty trusts. A royalty trust generally acquires an interest in natural resource companies and distributes the income it receives to the investors of the royalty trust. A sustained decline in demand for crude oil, natural gas and refined petroleum products could adversely affect income and royalty trust revenues and cash flows. Factors that could lead to a decrease in market demand include a recession or other adverse economic conditions, an increase in the market price of the underlying commodity, higher taxes or other regulatory actions that increase costs, or a shift in consumer demand for such products. A rising interest rate environment could adversely impact the performance of royalty trusts. Rising interest rates could limit the capital appreciation of royalty trusts because of the increased availability of alternative investments at more competitive yields. The Fund's investment in royalty trusts may result in the layering of expenses such that shareholders will indirectly bear a proportionate share of the royalty trusts' operating expenses, in addition to paying Fund expenses.

MLP RISK -- MLPs are limited partnerships in which the ownership units are publicly traded. MLP units are registered with the U.S. Securities and Exchange Commission (the "SEC") and are freely traded on a securities exchange or in the over-the-counter market. MLPs often own several properties or businesses (or own interests) that are related to oil and gas industries or other natural resources, but they also may finance other projects. To the extent that an MLP's interests are all in a particular industry, the MLP will be negatively impacted by economic events adversely impacting that industry. The risks of investing in a MLP are generally those involved in investing in a partnership as opposed to a corporation. For example, state law governing partnerships is often less restrictive than state law governing corporations. Accordingly, there may be fewer protections afforded to investors in a MLP than investors in a

corporation. For example, investors in MLPs may have limited voting rights or be liable under certain circumstances for amounts greater than the amount of their investment. In addition, MLPs may be subject to state taxation in certain jurisdictions which will have the effect of reducing the amount of income paid by the MLP to its investors.

FOREIGN COMPANY RISK -- Investing in foreign companies, including direct investments and through ADRs, which are traded on U.S. exchanges and represent an ownership in a foreign security, poses additional risks since political and economic events unique to a country or region will affect those markets and their issuers. These risks will not necessarily affect the U.S. economy or similar issuers located in the United States. In addition, investments in foreign companies are generally denominated in a foreign currency. As a result, changes in the value of those currencies compared to the U.S. dollar may affect (positively or negatively) the value of the Fund's investments. These currency movements may occur separately from, and in response to, events that do not otherwise affect the value of the security in the issuer's home country. Differences in tax and accounting standards and difficulties obtaining information about foreign companies can negatively affect investment decisions. The Fund's investments in foreign securities are also subject to the risk that the securities may be difficult to value and/or valued incorrectly. While ADRs provide an alternative to directly purchasing the underlying foreign securities in their respective national markets and currencies, investments in ADRs continue to be subject to many of the risks associated with investing directly in foreign securities.

FOREIGN CURRENCY RISK -- As a result of the Fund's investments in securities or other investments denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar, in which case, the dollar value of an investment in the Fund would be adversely affected.

ETF RISK -- ETFs are pooled investment vehicles, such as registered investment companies and grantor trusts, whose shares are listed and traded on U.S. stock exchanges or otherwise traded in the over-the-counter market. To the extent that the Fund invests in ETFs, the Fund will be subject to substantially the same risks as those associated with the direct ownership of the securities comprising the index on which the ETF is based and the value of the Fund's investment will fluctuate in response to the performance of the underlying index. ETFs typically incur fees that are separate from those of the Fund. Accordingly, the Fund's investments in ETFs will result in the layering of expenses such that shareholders will indirectly bear a proportionate share of the ETFs' operating expenses, in addition to paying Fund expenses. Because the value of ETF shares depends on the demand in the market, shares may trade at a discount or premium and the Adviser may not be able to liquidate the Fund's holdings at the most optimal time, which could adversely affect the Fund's performance.