Robeco Boston Partners Global Equity Fund (First Prospectus Summary) | Robeco Boston Partners Global Equity Fund

SUMMARY SECTION

Investment Objective

The Fund seeks to provide long-term capital growth.

Expenses and Fees

This table describes the fees and expenses that you may pay if you buy and hold

Institutional Class shares of the Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees	Robeco Boston Partners Global Equity Fund Institutional Class
Maximum sales charge (load) imposed on purchases (as a percentage of offering price)	none
Maximum deferred sales charge (load)	none
Maximum sales charge (load) imposed on reinvested dividends	none
Redemption fee (as a percentage of amount redeemed on shares held for less than 60 days, if applicable)	1.00%
Exchange fee (as a percentage of amount exchanged on shares held for less than 60 days, if applicable)	1.00%

Annual Fund Operating Expenses* (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses		Robeco Boston Partners Global Equity Fund Institutional Class
Management fees		0.90%
Distribution (12b-1) fees		none
Other expenses	[1]	1.15%
Total annual Fund operating expenses		2.05%
Fee waivers and expense reimbursements	[2]	(0.75%)
Net expenses		1.30%

Example

This Example is intended to help you compare the cost of investing in the Fund

with the cost of investing in other mutual funds. The Example assumes that you

invest $10,000 in the Fund for the time periods indicated and that you sell all

of your shares at the end of the period. The Example also assumes that your

investment has a 5% return each year and that the operating expenses of the Fund

remain the same. Although your actual costs may be higher or lower, based on these

assumptions your costs would be:

Expense Example (USD $)	Expense Example, With Redemption, 1 Year	Expense Example, With Redemption, 3 Years
Robeco Boston Partners Global Equity Fund Institutional Class	132	570

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells

securities (or "turns over" its portfolio). A higher portfolio turnover rate may

indicate higher transaction costs and may result in higher taxes when Fund

shares are held in a taxable account. These costs, which are not reflected in

Total annual Fund operating expenses or in the Example, affect the Fund's

performance.

Summary of Principal Investment Strategies

The Fund pursues its objective by investing, under normal circumstances, at

least 80% of its net assets (including borrowings for investment purposes) in a

non-diversified portfolio of equity and equity-related securities issued by U.S.

and non-U.S. companies of any capitalization size. The Fund may invest in all

types of equity and equity-related securities, including without limitation

exchange-traded and over-the-counter common and preferred stocks, warrants,

options, rights, convertible securities, sponsored and unsponsored depositary

receipts and shares, trust certificates, participatory notes, limited

partnership interests, shares of other investment companies (including

exchanged-traded funds ("ETFs")), real estate investment trusts ("REITs") and

equity participations. An equity participation is a type of loan that gives the

lender a portion of equity ownership in a property, in addition to principal and

interest payments. A convertible security is a bond, debenture, note, preferred

stock or other security that may be converted into or exchanged for a prescribed

amount of common stock of the same or a different issuer within a particular

period of time at a specified price or formula.



The Fund defines non-U.S. companies as companies (i) that are organized under

the laws of a foreign country; (ii) whose principal trading market is in a

foreign country; or (iii) that have a majority of their assets, or that derive a

significant portion of their revenue or profits from businesses, investments or

sales, outside of the United States. Under normal market conditions, the Fund

invests significantly (ordinarily at least 40% -- unless market conditions are

not deemed favorable by Robeco, in which case the Fund would invest at least

30%) in non-U.S. companies. The Fund principally will be invested in issuers

located in countries with developed securities markets, but may also invest in

issuers located in emerging markets. The Fund will allocate its assets among

various regions and countries, including the United States (but in no less than

three different countries).



The Fund generally invests in the equity securities of issuers believed by

Robeco to be undervalued in the marketplace, focusing on issuers that combine

attractive valuations with catalysts for change. Robeco applies a bottom-up

stock selection process (i.e., one that focuses primarily on issuer-specific

factors) in managing the Fund, using a combination of fundamental and

quantitative analysis. In selecting investments for the Fund, Robeco considers

various factors such as price-to-book value, price-to-sales and earnings ratios,

dividend yields, strength of management, and cash flow to identify securities

that are trading at a price that appears to be lower than the issuer's inherent

value.



The Fund may (but is not required to) invest in derivatives, including put and

call options, futures, forward contracts and swaps, in lieu of investing

directly in a security, currency or instrument, for hedging and non-hedging

purposes.



The Fund may invest up to 15% of its net assets in illiquid securities,

including securities that are illiquid by virtue of the absence of a readily

available market or legal or contractual restrictions on resale.



The Fund may participate as a purchaser in initial public offerings of

securities ("IPO"). An IPO is a company's first offering of stock to the public.

The Fund may also seek to increase its income by lending portfolio securities.



While Robeco intends to fully invest the Fund's assets at all times in

accordance with the above-mentioned policies, the Fund reserves the right to

hold up to 100% of its assets, as a temporary defensive measure, in cash and

eligible U.S. dollar-denominated money market instruments. Robeco will

determine when market conditions warrant temporary defensive measures.

Summary of Principal Risks

o Management Risk. The Fund is subject to the risk of poor stock selection. In

other words, the individual stocks in the Fund may not perform as well as

expected, and/or the Fund's portfolio management practices do not work to

achieve their desired result.



o Market Risk. The net asset value ("NAV") of the Fund will change with changes

in the market value of its portfolio positions. Investors may lose money.

Although the Fund will invest in stocks Robeco believes to be undervalued, there

is no guarantee that the prices of these stocks will not move even lower.



o Foreign Securities Risk. International investing is subject to special risks,

including, but not limited to, currency exchange rate volatility, political,

social or economic instability, and differences in taxation, auditing and other

financial practices. The Fund may invest in securities of foreign issuers either

directly or depositary receipts. Depositary receipts may be available through

"sponsored" or "unsponsored" facilities. Holders of unsponsored depositary

receipts generally bear all of the costs of the unsponsored facility. The

depository of an unsponsored facility is frequently under no obligation to

distribute shareholder communications received from the issuer of the deposited

security or to pass through, to the holders of the receipts, voting rights with

respect to the deposited securities. The depository of unsponsored depositary

receipts may provide less information to receipt holders. Participatory notes

("P-notes") are derivative instruments used by investors to take positions in

certain foreign securities. P-notes present similar risks to investing directly

in such securities and also expose investors to counterparty risk.



o Emerging Markets Risk. Investment in emerging market securities involves

greater risk than that associated with investment in securities of issuers in

developed foreign countries. These risks include volatile currency exchange

rates, periods of high inflation, increased risk of default, greater social,

economic and political uncertainty and instability, less governmental

supervision and regulation of securities markets, weaker auditing and financial

reporting standards, lack of liquidity in the markets, and the significantly

smaller market capitalizations of emerging market issuers.



o Currency Risk. Investment in foreign securities also involves currency risk

associated with securities that trade or are denominated in currencies other

than the U.S. dollar and which may be affected by fluctuations in currency

exchange rates. An increase in the strength of the U.S. dollar relative to a

foreign currency may cause the U.S. dollar value of an investment in that

country to decline. Foreign currencies also are subject to risks caused by

inflation, interest rates, budget deficits and low savings rates, political

factors and government controls.



o Convertible Securities Risk. Securities that can be converted into common

stock, such as certain securities and preferred stock, are subject to the usual

risks associated with fixed income investments, such as interest rate risk and

credit risk. In addition, because they react to changes in the value of the

equity securities into which they will convert, convertible securities are also

subject to the risks associated with equity securities.



o Options Risk. An option is a type of derivative instrument that gives the

holder the right (but not the obligation) to buy (a "call") or sell (a "put") an

asset in the near future at an agreed upon price prior to the expiration date of

the option. The Fund may "cover" a call option by owning the security underlying

the option or through other means. The value of options can be highly volatile,

and their use can result in loss if Robeco is incorrect in its expectation of

price fluctuations.



o Derivatives Risk. The Fund's investments in derivative instruments, which

include futures and options on securities, securities indices or currencies,

options on these futures, forward foreign currency contracts and interest rate

or currency swaps, may be leveraged and result in losses exceeding the amounts

invested.



o REITs Risk. REITs may be affected by economic forces and other factors related

to the real estate industry. Investing in REITs may involve risks similar to

those associated with investing in small capitalization companies. REITs may have

limited financial resources, may trade less frequently and in a limited volume

and may be subject to more abrupt or erratic price movements than larger company

securities. Historically, small capitalization stocks, such as REITs, have been

more volatile in price than the larger capitalization stocks included in the S&P

500® Index.



o Small/Mid Cap Companies Risk. Investing in securities of companies with micro,

small or mid-sized capitalizations tends to be riskier than investing in

securities of companies with large capitalizations. Securities of companies with

micro, small and mid-sized capitalizations tend to be more volatile than those

of large cap companies and, on occasion, may fluctuate in the opposite direction

of large cap company securities or the broader stock market averages.



The small capitalization equity securities in which the Fund invests may be

traded only in the over-the-counter market or on a regional securities exchange,

may be listed only in the quotation service commonly known as the "pink sheets,"

and may not be traded every day or in the volume typical of trading on a

national securities exchange. These securities may also be subject to wide

fluctuations in market value. The trading market for any given small

capitalization equity security may be sufficiently small as to make it difficult

for the Fund to dispose of a substantial block of such securities. Redemptions

may require the Fund to sell its small capitalization securities at a discount

from market prices or during periods when, in Robeco's judgment, such sale is

not desirable. Moreover, the lack of an efficient market for these securities

may make them difficult to value.



o Securities Lending Risk. The Fund may lend portfolio securities to

institutions, such as certain broker-dealers. The Fund may experience a loss or

delay in the recovery of its securities if the borrowing institution breaches

its agreement with the Fund.



o Exchange Traded Fund Risk. Exchange traded funds ("ETFs") are a type of

investment company bought and sold on a securities exchange. An ETF represents a

fixed portfolio of securities designed to track a particular market index. The

risks of owning an ETF generally reflect the risks of owning the underlying

securities that they are designed to track, although lack of liquidity in an ETF

could result in its being more volatile. The Fund may incur brokerage fees in

connection with its purchase of ETF shares.



o Illiquid Securities Risk. Investing in illiquid securities is subject to

certain risks, such as limitations on resale and uncertainty in determining

valuation. Limitations on resale may adversely affect the marketability of

portfolio securities and the Fund might be unable to dispose of restricted or

other illiquid securities promptly or at reasonable prices and might thereby

experience difficulty satisfying redemptions within seven days. The Fund might,

in order to dispose of restricted securities, have to register securities

resulting in additional expense and delay. Adverse market conditions could

impede such a public offering of such securities.



o IPO Risk. IPO risk is the risk that the market value of IPO shares will

fluctuate considerably due to certain factors, such as the absence of a prior

public market, unseasoned trading, the small number of shares available for

trading and limited information about the issuer. The purchase of IPO shares may

involve high transaction costs. IPO shares are subject to market risk and

liquidity risk. When the Fund's asset base is small, a significant portion of

the Fund's performance could be attributable to investments in IPOs, because

such investments would have a magnified impact on the Fund. As the Fund's assets

grow, the effect of the Fund's investments in IPOs on the Fund's performance

probably will decline, which could reduce the Fund's performance. Because of the

price volatility of IPO shares, the Fund may choose to hold IPO shares for a

very short period of time. This may increase the turnover of the Fund's

portfolio and may lead to increased expenses to the Fund, such as commissions

and transaction costs. In addition, Robeco cannot guarantee continued access to

IPOs.



o Non-Diversification Risk. The Fund is non-diversified. Compared to other

funds, the Fund may invest more of its assets in a smaller number of companies.

Gains or losses on a single stock may have greater impact on the Fund.

Performance Information

No performance information is available for the Fund because it had not

commenced operations as of the date of this Prospectus. The performance

information, when available, will provide some indication of the risks of

investing in the Fund. The Fund intends to evaluate its performance as compared

to that of the MSCI® World Index. Updated performance information will be

available at www.robecoinvest.com or 1-888-261-4073.

[1] Other expenses are based on estimated amounts for the current fiscal year.

[2] The Fund's investment adviser, Robeco Investment Management, Inc. ("Robeco"), has contractually agreed to waive all or a portion of its advisory fee and/or reimburse expenses in an aggregate amount equal to the amount by which the Total annual Fund operating expenses (excluding certain items discussed below) for the Fund's Institutional Class shares exceeds 1.30% of the average daily net assets attributable to the Fund's Institutional Class shares. In determining Robeco's obligation to waive advisory fees and/or reimburse expenses, the following expenses are not taken into account and could cause net Total Annual Fund Operating Expenses to exceed 1.30%: acquired fund fees and expenses, short sale dividend expenses, brokerage commissions, extraordinary items, interest or taxes. This contractual limitation is in effect until December 31, 2012 and may not be terminated without the approval of the Board of Directors of The RBB Fund, Inc. If at any time during the Fund's Advisory Agreement with Robeco is in effect, the Fund's Total annual Fund operating expenses for that year are less than 1.30%, Robeco is entitled to reimbursement by the Fund of the advisory fees waived and other payments remitted by Robeco to the Fund during such three-year period.