0000922457 brgsfi:S000002724Member brgsfi:C000007430Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:C000007431Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:C000007429Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:C000007432Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:C000007433Member 2011-10-27 2012-10-26 0000922457 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member rr:AfterTaxesOnDistributionsMember brgsfi:C000007429Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member rr:AfterTaxesOnDistributionsAndSalesMember brgsfi:C000007429Member 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:MsciWorldIndexMember 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:MsciWorldSmallCapIndexMember 2011-10-27 2012-10-26 0000922457 brgsfi:S000002724Member brgsfi:MsciAllCountryWorldSmallCapIndexMember 2011-10-27 2012-10-26 pure iso4217:USD 1280 1220 Example: 1266 2012-09-30 <div style="display:none">~ http://www.blackrock.com/role/ScheduleShareholderFeesBLACKROCKGLOBALSMALLCAPFUND,INC. column period compact * ~</div> 1480 1220 622 995 The Fund pays transaction costs, such as commissions, when it buys and sells securities (or turns over its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Funds performance. During the most recent fiscal year, the Funds portfolio turnover rate was 73% of the average value of its portfolio. 0.4778 0.128 http://www.blackrock.com/funds Fund Overview Key Facts about BlackRock Global SmallCap Fund, Inc. Shareholder Fees (fees paid directly from your investment) Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 663 693 331 115 0.0525 0 0 0 0 You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in the BlackRock-advised fund complex. The information shows you how the Funds performance has varied year by year and provides some indication of the risks of investing in the Fund. <div style="display:none">~ http://www.blackrock.com/role/ScheduleAnnualFundOperatingExpensesBLACKROCKGLOBALSMALLCAPFUND,INC. column period compact * ~</div> 25000 485BPOS BLACKROCK GLOBAL SMALLCAP FUND, INC. 2012-10-26 2012-06-30 This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in the BlackRock-advised fund complex. More information about these and other discounts is available from your financial professional and in the Details about the Share Classes section on page 18 of the Funds prospectus and in the Purchase of Shares section on page II-58 of the Funds statement of additional information. 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 then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Funds operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 187 954 1098 712 359 579 Principal Investment Strategies of the Fund -0.1703 -0.1068 During the ten-year period shown in the bar chart, the highest return for a quarter was 23.07% (quarter ended June 30, 2003) and the lowest return for a quarter was –21.46% (quarter ended December 31, 2008). The year-to-date return as of September 30, 2012 was 12.80%. 0.2307 As of 12/31/11 Average Annual Total Returns 243 231 2495 2615 0.0614 0.051 0.0504 After-tax returns are calculated using the historical highest individual Federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on the investor's tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. After-tax returns are shown for Investor A Shares only, and the after-tax returns for Investor B, Investor C, Institutional and Class R Shares will vary. 800-882-0052 Actual after-tax returns depend on the investors tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. <div style="display:none">~ http://www.blackrock.com/role/ScheduleAnnualTotalReturnsBLACKROCKGLOBALSMALLCAPFUND,INC.BarChart column period compact * ~</div> The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets given in the Funds most recent annual report, which does not include Acquired Fund Fees and Expenses. A contingent deferred sales charge ("CDSC") of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at time of purchase as part of an investment of $1,000,000 or more. Effective October 1, 2012, one of the Fund's benchmarks against which it measures its performance, the MSCI World Small Cap Index, was replaced with the MSCI All Country World Small Cap Index. BlackRock believes the MSCI All Country World Small Cap Index more accurately reflects the investment strategy of the Fund. The MSCI All Country World Small Cap Index is a free float-adjusted market capitalization weighted index that is designed to measure equity market results of smaller capitalization companies in both developed and emerging markets. 0000922457 2012-10-26 false Investment Objective Fees and Expenses of the Fund 0 0.045 0.01 Portfolio Turnover The Fund invests in a diversified portfolio primarily consisting of equity securities of small cap issuers in various foreign countries and in the United States. Equity securities consist primarily of common and preferred stocks and depositary receipts, and include securities convertible into common stock, and securities or other instruments whose price is linked to the value of common stock. Depositary receipts include American Depositary Receipts (ADRs), European Depositary Receipts (EDRs), Global Depositary Receipts (GDRs) and unsponsored Depositary Receipts. ADRs are receipts typically issued by an American bank or trust company that evidence underlying securities issued by a foreign corporation. EDRs (issued in Europe) and GDRs (issued throughout the world) each evidence a similar ownership arrangement. In addition, the Fund may invest in derivative securities or instruments, such as options and futures, the value of which is based on a common stock or a group of common stocks. The Fund may use derivatives to hedge its investment portfolio against market, interest rate and currency risks or to seek to enhance its return. The derivatives that the Fund may use include indexed and inverse securities, options, futures, swaps and forward foreign exchange transactions. Under normal circumstances, the Fund invests at least 80% of its assets in equity securities of small cap issuers. Small cap issuers are those whose market capitalization is similar to the market capitalization of companies in the Morgan Stanley Capital International (MSCI) All Country World Small Cap IndexSM at the time of the Funds investment. As of September 28, 2012, the MSCI All Country World Small Cap IndexSM included companies with free float market capitalizations between $16.7 million and $5.984 billion. The market capitalizations of companies in the index change with market conditions and the composition of the MSCI All Country World Small Cap Index.SM The Fund will invest in securities of issuers from a variety of countries, including those in emerging markets. The Fund may also invest in equity securities issued by emerging growth companies, which are companies of any market capitalization without a long or consistent history of earnings but that Fund management believes have the potential for earnings growth over an extended period of time. Under normal circumstances, the Fund anticipates it will allocate a substantial amount (approximately 40% or more unless market conditions are not deemed favorable by Fund management, in which case the Fund would invest at least 30%) of its total assets in foreign securities, which may include securities (i) of foreign government issuers, (ii) of issuers organized or located outside the U.S., (iii) of issuers which primarily trade in a market located outside the U.S., or (iv) of issuers doing a substantial amount of business outside the U.S., which the Fund considers to be companies that derive at least 50% of their revenue or profits from business outside the U.S. or have at least 50% of their sales or assets outside the U.S. 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 may invest in securities denominated in any currency. For temporary defensive purposes the Fund may deviate substantially from the allocation described above. Risk is inherent in all investing. The value of your investment in the Fund, as well as the amount of return you receive on your investment, may fluctuate significantly from day to day and over time. You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. The following is a summary description of principal risks of investing in the Fund. <ul type="square"><li>Depositary Receipts Risk — The issuers of unsponsored depositary receipts are not obligated to disclose information that is, in the United States, considered material. Therefore, there may be less information available regarding these issuers and there may not be a correlation between such information and the market value of the depositary receipts. Depositary receipts are generally subject to the same risks as the foreign securities that they evidence or into which they may be converted. </li></ul> <ul type="square"><li>Derivatives Risk — The Funds use of derivatives may reduce the Funds returns and/or increase volatility. Volatility is defined as the characteristic of a security, an index or a market to fluctuate significantly in price within a short time period. Derivatives are also subject to counterparty risk, which is the risk that the other party in the transaction will not fulfill its contractual obligation. A risk of the Funds use of derivatives is that the fluctuations in their values may not correlate perfectly with the overall securities markets. The possible lack of a liquid secondary market for derivatives and the resulting inability of the Fund to sell or otherwise close a derivatives position could expose the Fund to losses and could make derivatives more difficult for the Fund to value accurately. Derivatives may give rise to a form of leverage and may expose the Fund to greater risk and increase its costs. Recent legislation calls for new regulation of the derivatives markets. The extent and impact of the regulation is not yet known and may not be known for some time. New regulation may make derivatives more costly, may limit the availability of derivatives, or may otherwise adversely affect the value or performance of derivatives. </li></ul> <ul type="square"><li>Emerging Markets Risk — Emerging markets are riskier than more developed markets because they tend to develop unevenly and may never fully develop. Investments in emerging markets may be considered speculative. Emerging markets are more likely to experience hyperinflation and currency devaluations, which adversely affect returns to U.S. investors. In addition, many emerging securities markets have far lower trading volumes and less liquidity than developed markets. </li></ul> <ul type="square"><li>Equity Securities Risk — Stock markets are volatile. The price of equity securities fluctuates based on changes in a companys financial condition and overall market and economic conditions. </li></ul> <ul type="square"><li>Foreign Securities Risk — Foreign investments often involve special risks not present in U.S. investments that can increase the chances that the Fund will lose money. These risks include: </li></ul> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">The Fund generally holds its foreign securities and cash in foreign banks and securities depositories, which may be recently organized or new to the foreign custody business and may be subject to only limited or no regulatory oversight. </td></tr></table> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">Changes in foreign currency exchange rates can affect the value of the Funds portfolio. </td></tr></table> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">The economies of certain foreign markets may not compare favorably with the economy of the United States with respect to such issues as growth of gross national product, reinvestment of capital, resources and balance of payments position. </td></tr></table> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">The governments of certain countries may prohibit or impose substantial restrictions on foreign investments in their capital markets or in certain industries. </td></tr></table> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">Many foreign governments do not supervise and regulate stock exchanges, brokers and the sale of securities to the same extent as does the United States and may not have laws to protect investors that are comparable to U.S. securities laws. </td></tr></table> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">Settlement and clearance procedures in certain foreign markets may result in delays in payment for or delivery of securities not typically associated with settlement and clearance of U.S. investments. </td></tr></table> <table style="BORDER-COLLAPSE: collapse" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr> <td width="4%"></td> <td valign="top" width="3%" align="left">—</td> <td valign="top" align="left">The European financial markets have recently experienced volatility and adverse trends due to concerns about economic downturns in, or rising government debt levels of several European countries. These events have adversely affected the exchange rate of the Euro and may spread to other countries in Europe, including countries that do not use the Euro. These events may affect the value and liquidity of certain of the Funds investments. </td></tr></table><ul type="square"><li>Market Risk and Selection Risk — Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Selection risk is the risk that the securities selected by Fund management will underperform the markets, the relevant indices or the securities selected by other funds with similar investment objectives and investment strategies. This means you may lose money. </li></ul> <ul type="square"><li>Small Cap and Emerging Growth Securities Risk — Small cap or emerging growth companies may have limited product lines or markets. They may be less financially secure than larger, more established companies. They may depend on a more limited management group than larger capitalized companies. </li></ul> <center>Investor A Shares ANNUAL TOTAL RETURNS BlackRock Global SmallCap Fund As of 12/31</center> 0.1259 -0.3775 0.3472 0.1831 year-to-date return 2003-06-30 lowest return 2008-12-31 0 0 0.0025 0.01 0.01 0 0.005 0.0032 0.0054 0.0042 0.0027 0.0048 0.0143 0.024 0.0228 0.0113 748 712 -0.111 -0.1048 -0.1237 -0.1554 -0.0999 -0.1572 0.0602 0.0585 0.07 0.0641 -0.1537 You would pay the following expenses if you did not redeem your shares: You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. As with all such investments, past performance (before and after taxes) is not an indication of future results. However, the table includes all applicable fees and sales charges. After-tax returns are calculated using the historical highest individual Federal marginal income tax rates and do not reflect the impact of state and local taxes. After-tax returns are shown for Investor A Shares only, and the after-tax returns for Investor B, Investor C, Institutional and Class R Shares will vary. 0.0184 <div style="display:none">~ http://www.blackrock.com/role/ScheduleExpenseExampleNoRedemptionTransposedBLACKROCKGLOBALSMALLCAPFUND,INC. column period compact * ~</div> <div style="display:none">~ http://www.blackrock.com/role/ScheduleAverageAnnualTotalReturnsTransposedBLACKROCKGLOBALSMALLCAPFUND,INC. column period compact * ~</div> -0.0554 -0.0906 -0.113 0.0802 0.0886 0.0362 2012-10-26 The investment objective of BlackRock Global SmallCap Fund, Inc. (the Fund) is to seek long-term growth of capital by investing primarily in a portfolio of equity securities of small cap issuers located in various foreign countries and in the United States. 2148 2495 2615 1375 2159 Principal Risks of Investing in the Fund Performance Information The information shows you how the Funds performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Funds performance to that of the MSCI All Country World Small Cap Index, the MSCI World IndexSM and the MSCI World Small Cap IndexSM. Effective October 1, 2012, one of the Funds benchmarks against which it measures its performance, the MSCI World Small Cap Index, was replaced with the MSCI All Country World Small Cap Index. BlackRock believes the MSCI All Country World Small Cap Index more accurately reflects the investment strategy of the Fund. The MSCI All Country World Small Cap Index is a free float-adjusted market capitalization weighted index that is designed to measure equity market results of smaller capitalization companies in both developed and emerging markets. The returns for Class R Shares prior to February 4, 2003, the commencement of operation of Class R Shares, are based upon performance of the Funds Institutional Shares. The returns for Class R Shares, however, are adjusted to reflect the distribution and service (12b-1) fees applicable to Class R Shares. As with all such investments, past performance (before and after taxes) is not an indication of future results. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. However, the table includes all applicable fees and sales charges. If the Funds investment manager and its affiliates had not waived or reimbursed certain Fund expenses during these periods, the Funds returns would have been lower. Updated information on the Funds performance can be obtained by visiting http://www.blackrock.com/funds or can be obtained by phone at 800-882-0052. 0.1377 0.1818 0.1639 highest return -0.2146 0.0085 0.0085 0.0085 0.0085 0.0085 0.0001 0.0001 0.0001 0.0001 0.0001 -0.0046 -0.0159 -0.0071 -0.0059 -0.0022 0.0091 0.0017 0.73 Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. <div style="display:none">~ http://www.blackrock.com/role/ScheduleExpenseExampleTransposedBLACKROCKGLOBALSMALLCAPFUND,INC. column period compact * ~</div> -0.0237 -0.0064 0.0031 A contingent deferred sales charge ("CDSC") of 1.00% is assessed on certain redemptions of Investor A Shares made within 18 months after purchase where no initial sales charge was paid at time of purchase as part of an investment of $1,000,000 or more. The CDSC is 4.50% if shares are redeemed in less than one year. The CDSC for Investor B Shares decreases for redemptions made in subsequent years. After six years there is no CDSC on Investor B Shares. (See the section "Details about the Share Classes - Investor B Shares" in the Fund's prospectus for the complete schedule of CDSCs.) There is no CDSC on Investor C Shares after one year. The Total Annual Fund Operating Expenses do not correlate to the ratio of expenses to average net assets given in the Fund's most recent annual report, which does not include Acquired Fund Fees and Expenses.