As filed with the Securities and Exchange Commission on October 8, 2013
Securities Act File No. 333-56203
Investment Company Act File No. 811-08797
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM N-1A
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933 | x | |||
Pre-Effective Amendment No. | ¨ | |||
Post-Effective Amendment No. 32 | x |
and/or
REGISTRATION STATEMENT
UNDER
THE INVESTMENT COMPANY ACT OF 1940 | x | |||
Amendment No. 76 | x | |||
(Check appropriate box or boxes) |
BLACKROCK SMALL CAP GROWTH FUND II
OF BLACKROCK SERIES, INC.
(Exact Name of Registrant as Specified in Charter)
100 Bellevue Parkway
Wilmington, Delaware 19809
(Address of Principal Executive Office)
Registrants Telephone Number, including Area Code (800) 441-7762
John M. Perlowski
BlackRock Small Cap Growth Fund II
of BlackRock Series, Inc.
55 East 52nd Street
New York, New York 10055
United States of America
(Name and Address of Agent for Service)
Copies to:
John A. MacKinnon, Esq. Sidley Austin LLP 787 Seventh Avenue New York, New York 10019-6018 |
Benjamin Archibald, Esq. BlackRock Advisors, LLC 55 East 52nd Street New York, New York 10055 |
It is proposed that this filing will become effective (check appropriate box)
x | Immediately upon filing pursuant to paragraph (b) |
¨ | On (date) pursuant to paragraph (b) |
¨ | 60 days after filing pursuant to paragraph (a)(1) |
¨ | On (date) pursuant to paragraph (a)(1) |
¨ | 75 days after filing pursuant to paragraph (a)(2) |
¨ | On (date) pursuant to paragraph (a)(2) of Rule 485. |
If appropriate, check the following box:
¨ | This post-effective amendment designates a new effective date for a previously filed post-effective amendment. |
Title of Securities Being Registered: Shares of common stock, par value $.0001 per share.
BlackRock Master LLC has also executed this Registration Statement.
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Post-Effective Amendment to the Registration Statement pursuant to Rule 485(b) under the Securities Act and has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of New York and the State of New York, on October 8, 2013.
BLACKROCK SMALL CAP GROWTH FUND II OF BLACKROCK SERIES, INC. | ||
By | /S/ JOHN M. PERLOWSKI | |
John M. Perlowski President and Chief Executive Officer |
Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to its Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.
Signature |
Title |
Date | ||
/S/ JOHN M. PERLOWSKI John M. Perlowski |
President and Chief Executive Officer |
October 8, 2013 | ||
/S/ NEAL J. ANDREWS Neal J. Andrews |
Chief Financial Officer |
October 8, 2013 | ||
DAVID O. BEIM* David O. Beim |
Director | |||
RONALD W. FORBES* Ronald W. Forbes |
Director | |||
DR. MATINA S. HORNER* Dr. Matina S. Horner |
Director | |||
RODNEY D. JOHNSON* Rodney D. Johnson |
Director | |||
HERBERT I. LONDON* Herbert I. London |
Director | |||
IAN A. MACKINNON* Ian A. MacKinnon |
Director | |||
CYNTHIA A. MONTGOMERY* Cynthia A. Montgomery |
Director | |||
JOSEPH P. PLATT* Joseph P. Platt |
Director | |||
ROBERT C. ROBB, JR.* Robert C. Robb, Jr. |
Director | |||
TOBY ROSENBLATT* Toby Rosenblatt |
Director | |||
KENNETH L. URISH* Kenneth L. Urish |
Director |
FREDERICK W. WINTER* Frederick W. Winter |
Director |
|||||
Paul L. Audet* Paul L. Audet |
Director |
|||||
HENRY GABBAY* Henry Gabbay |
Director |
|||||
*By: | /S/ BENJAMIN ARCHIBALD Benjamin Archibald (Attorney-in-Fact) |
October 8, 2013 |
SIGNATURES
BlackRock Master LLC has duly caused this Registration Statement of BlackRock Small Cap Growth Fund II of BlackRock Series, Inc. to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York and the State of New York, on October 8, 2013.
BLACKROCK MASTER SMALL CAP
GROWTH | ||
By | /S/ JOHN M. PERLOWSKI | |
John M. Perlowski President and Chief Executive Officer |
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.
Signature |
Title |
Date | ||
/S/ JOHN M. PERLOWSKI John M. Perlowski |
President and Chief Executive Officer |
October 8, 2013 | ||
/S/ NEAL J. ANDREWS Neal J. Andrews |
Chief Financial Officer |
October 8, 2013 | ||
DAVID O. BEIM* David O. Beim |
Director | |||
RONALD W. FORBES* Ronald W. Forbes |
Director | |||
DR. MATINA S. HORNER* Dr. Matina S. Horner |
Director | |||
RODNEY D. JOHNSON* Rodney D. Johnson |
Director | |||
HERBERT I. LONDON* Herbert I. London |
Director | |||
IAN A. MACKINNON* Ian A. MacKinnon |
Director | |||
CYNTHIA A. MONTGOMERY* Cynthia A. Montgomery |
Director | |||
JOSEPH P. PLATT* Joseph P. Platt |
Director | |||
ROBERT C. ROBB, JR.* Robert C. Robb, Jr. |
Director | |||
TOBY ROSENBLATT* Toby Rosenblatt |
Director | |||
KENNETH L. URISH* Kenneth L. Urish |
Director | |||
FREDERICK W. WINTER* Frederick W. Winter |
Director | |||
Paul L. Audet* Paul L. Audet |
Director |
HENRY GABBAY* Henry Gabbay |
Director | |||||
*By: | /s/ BENJAMIN ARCHIBALD Benjamin Archibald (Attorney-in-Fact) |
October 8, 2013 |
EXHIBIT INDEX
Index No. |
Description of Exhibit | |
EX-101.INS | XBRL Instance Document | |
EX-101.SCH | XBRL Taxonomy Extension Schema Document | |
EX-101.CAL | XBRL Taxonomy Extension Calculation Linkbase | |
EX-101.DEF | XBRL Taxonomy Extension Definition Linkbase | |
EX-101.LAB | XBRL Taxonomy Extension Labels Linkbase | |
EX-101.PRE | XBRL Taxonomy Extension Presentation Linkbase |
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Label | Element | Value |
---|---|---|
Risk/Return: | rr_RiskReturnAbstract | |
Registrant Name | dei_EntityRegistrantName | BLACKROCK SERIES, INC. |
Prospectus Date | rr_ProspectusDate | Sep. 27, 2013 |
Document Creation Date | dei_DocumentCreationDate | Sep. 27, 2013 |
Label | Element | Value | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Risk/Return: | rr_RiskReturnAbstract | |||||||||
Registrant Name | dei_EntityRegistrantName | BLACKROCK SERIES, INC. | ||||||||
Prospectus Date | rr_ProspectusDate | Sep. 27, 2013 | ||||||||
BlackRock Small Cap Growth Fund II
|
||||||||||
Risk/Return: | rr_RiskReturnAbstract | |||||||||
Risk/Return [Heading] | rr_RiskReturnHeading | Fund Overview Key Facts About BlackRock Small Cap Growth Fund II |
||||||||
Objective [Heading] | rr_ObjectiveHeading | Investment Objective | ||||||||
Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The investment objective of BlackRock Small Cap Growth Fund II (“Small Cap Growth” or the “Fund”), a series of BlackRock Series, Inc. (the “Corporation”), is to seek long-term capital growth. In other words, the Fund tries to choose investments that will increase in value. Current income from dividends and interest will not be an important consideration in selecting portfolio securities. | ||||||||
Expense [Heading] | rr_ExpenseHeading | Fees and Expenses of the Fund | ||||||||
Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | 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 fund complex advised by BlackRock Advisors, LLC (“BlackRock”) and its affiliates. More information about these and other discounts is available from your financial professional or your selected securities dealer, broker, investment adviser, service provider or industry professional (including BlackRock, The PNC Financial Services Group, Inc. and their respective affiliates) (each a “Financial Intermediary”) and in the “Details About the Share Classes” section on page 17 of the Fund’s prospectus and in the “Purchase of Shares” section on page II-60 of Part II of the Fund’s Statement of Additional Information. | ||||||||
Shareholder Fees Caption [Text] | rr_ShareholderFeesCaption | Shareholder Fees (fees paid directly from your investment) |
||||||||
Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) |
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Fee Waiver or Reimbursement over Assets, Date of Termination | rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination | October 1, 2014 | ||||||||
Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | Portfolio Turnover: | ||||||||
Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock | The Master Portfolio 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 Fund’s performance. During the most recent fiscal year, the Master Portfolio’s portfolio turnover rate was 165% of the average value of its portfolio. | ||||||||
Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 165.00% | ||||||||
Expenses Deferred Charges [Text Block] | rr_ExpensesDeferredChargesTextBlock | 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. | ||||||||
Expense Breakpoint Discounts [Text] | rr_ExpenseBreakpointDiscounts | 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 fund complex advised by BlackRock Advisors, LLC (“BlackRock”) and its affiliates. | ||||||||
Expense Breakpoint, Minimum Investment Required [Amount] | rr_ExpenseBreakpointMinimumInvestmentRequiredAmount | $ 25,000 | ||||||||
Expenses Represent Both Master and Feeder [Text] | rr_ExpensesRepresentBothMasterAndFeeder | The fees and expenses shown in the table and the example that follows include both the expenses of the Fund and the Fund’s share of the allocated expenses of BlackRock Master Small Cap Growth Portfolio (the “Master Portfolio”) of BlackRock Master LLC (the “Master LLC”). Management fees are paid by the Master Portfolio. | ||||||||
Expense Example [Heading] | rr_ExpenseExampleHeading | Example: | ||||||||
Expense Example Narrative [Text Block] | rr_ExpenseExampleNarrativeTextBlock | 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 Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: | ||||||||
Expense Example, No Redemption, By Year, Caption [Text] | rr_ExpenseExampleNoRedemptionByYearCaption | You would pay the following expenses if you did not redeem your shares: | ||||||||
Strategy [Heading] | rr_StrategyHeading | Principal Investment Strategies of the Fund | ||||||||
Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | Small Cap Growth will, under normal circumstances, invest at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of small cap companies and at least 80% of its net assets (plus any borrowings for investment purposes) in securities or instruments of issuers located in the United States. Equity securities consist primarily of common stock, preferred stock, securities convertible into common stock and securities or other instruments whose price is linked to the value of common stock, such as derivatives. The Fund seeks to buy primarily common stock but also can invest in preferred stock, convertible securities and other equity securities. The Fund management team focuses on small capitalization companies that Fund management believes have above average prospects for earnings growth. Although a universal definition of small-capitalization companies does not exist, the Fund generally defines these companies as those with market capitalizations, at the time of the Fund's investment, comparable in size to the companies in the Russell 2000® Index (between approximately $129 million and $3.3 billion as of May 31, 2013) or to the companies at the time of entry in the S&P SmallCap 600® Index (between $350 million and $1.6 billion). In the future, the Fund may define small-capitalization companies using a different index or classification system. From time to time the Fund may invest in shares of companies through "new issues" or initial public offerings ("IPOs"). The Fund may use derivatives, including options, warrants, futures, indexed securities, inverse securities, swaps and forward contracts both to seek to increase the return of the Fund and to hedge (or protect) the value of its assets against adverse movements in currency exchange rates, interest rates and movements in the securities markets. The Fund invests all of its assets in the Master Portfolio, a series of the Master LLC that has the same objective and strategies as the Fund. All investments will be made at the level of the Master Portfolio. This structure is sometimes called a "master/feeder" structure. The Fund's investment results will correspond directly to the investment results of the underlying Master Portfolio in which it invests. For simplicity, this prospectus uses the term "Fund" to include the Master Portfolio. |
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Risk [Heading] | rr_RiskHeading | Principal Risks of Investing in the Fund | ||||||||
Risk Narrative [Text Block] | rr_RiskNarrativeTextBlock | Risk is inherent in all investing. The value of your investment in Small Cap Growth, 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.
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Risk Lose Money [Text] | rr_RiskLoseMoney | You may lose part or all of your investment in the Fund or your investment may not perform as well as other similar investments. | ||||||||
Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Performance Information | ||||||||
Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | The information shows you how the Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. The table compares the Fund’s performance to that of the Russell 2000® Growth Index. The returns for Class R Shares prior to February 4, 2003, the commencement of operations of Class R Shares, are based upon performance of the Fund’s 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. The table includes all applicable fees and sales charges. Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. If BlackRock and its affiliates had not waived or reimbursed certain Fund expenses during the periods shown, the Fund’s returns would have been lower. Updated information can be obtained by visiting www.blackrock.com/funds or can be obtained by phone at (800) 882-0052. | ||||||||
Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | The information shows you how the Fund’s performance has varied year by year and provides some indication of the risks of investing in the Fund. | ||||||||
Performance Availability Phone [Text] | rr_PerformanceAvailabilityPhone | (800) 882-0052 | ||||||||
Performance Availability Website Address [Text] | rr_PerformanceAvailabilityWebSiteAddress | www.blackrock.com/funds | ||||||||
Performance Past Does Not Indicate Future [Text] | rr_PerformancePastDoesNotIndicateFuture | As with all such investments, past performance (before and after taxes) is not an indication of future results. | ||||||||
Bar Chart [Heading] | rr_BarChartHeading | Investor A Shares ANNUAL TOTAL RETURNS BlackRock Small Cap Growth Fund II As of 12/31 |
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Bar Chart Does Not Reflect Sales Loads [Text] | rr_BarChartDoesNotReflectSalesLoads | Sales charges are not reflected in the bar chart. If they were, returns would be less than those shown. | ||||||||
Bar Chart Closing [Text Block] | rr_BarChartClosingTextBlock | During the periods shown in the bar chart, the highest return for a quarter was 26.51% (quarter ended June 30, 2009) and the lowest return for a quarter was -29.25% (quarter ended December 31, 2008). The year-to-date return as of June 30, 2013 was 14.21%. | ||||||||
Performance Table Heading | rr_PerformanceTableHeading | As of 12/31/12 Average Annual Total Returns |
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Performance Table Does Reflect Sales Loads | rr_PerformanceTableDoesReflectSalesLoads | The table includes all applicable fees and sales charges. | ||||||||
Performance Table Uses Highest Federal Rate | rr_PerformanceTableUsesHighestFederalRate | 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. | ||||||||
Performance Table Not Relevant to Tax Deferred | rr_PerformanceTableNotRelevantToTaxDeferred | 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. | ||||||||
Performance Table One Class of after Tax Shown [Text] | rr_PerformanceTableOneClassOfAfterTaxShown | 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. | ||||||||
Performance Table Narrative | rr_PerformanceTableNarrativeTextBlock | 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. | ||||||||
BlackRock Small Cap Growth Fund II | Investor A Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 5.25% | ||||||||
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is lower) | rr_MaximumDeferredSalesChargeOverOfferingPrice | none | [1] | |||||||
Management Fee | rr_ManagementFeesOverAssets | 0.70% | [2] | |||||||
Distribution and/or Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 0.25% | [2] | |||||||
Administration Fee | rr_Component1OtherExpensesOverAssets | 0.20% | [2] | |||||||
Miscellaneous Other Expenses | rr_Component2OtherExpensesOverAssets | 0.49% | [2] | |||||||
Other Expenses | rr_OtherExpensesOverAssets | 0.69% | [2] | |||||||
Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 1.64% | [2] | |||||||
Fee Waivers and Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (0.16%) | [2] | |||||||
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | 1.48% | [2] | |||||||
1 Year | rr_ExpenseExampleYear01 | 668 | ||||||||
3 Years | rr_ExpenseExampleYear03 | 1,000 | ||||||||
5 Years | rr_ExpenseExampleYear05 | 1,356 | ||||||||
10 Years | rr_ExpenseExampleYear10 | 2,354 | ||||||||
2003 | rr_AnnualReturn2003 | 40.28% | ||||||||
2004 | rr_AnnualReturn2004 | 14.85% | ||||||||
2005 | rr_AnnualReturn2005 | 12.93% | ||||||||
2006 | rr_AnnualReturn2006 | 10.35% | ||||||||
2007 | rr_AnnualReturn2007 | 14.05% | ||||||||
2008 | rr_AnnualReturn2008 | (41.08%) | ||||||||
2009 | rr_AnnualReturn2009 | 34.13% | ||||||||
2010 | rr_AnnualReturn2010 | 21.95% | ||||||||
2011 | rr_AnnualReturn2011 | (0.89%) | ||||||||
2012 | rr_AnnualReturn2012 | 9.47% | ||||||||
Year to Date Return, Label | rr_YearToDateReturnLabel | year-to-date return | ||||||||
Bar Chart, Year to Date Return, Date | rr_BarChartYearToDateReturnDate | Jun. 30, 2013 | ||||||||
Bar Chart, Year to Date Return | rr_BarChartYearToDateReturn | 14.21% | ||||||||
Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | highest return | ||||||||
Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Jun. 30, 2009 | ||||||||
Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 26.51% | ||||||||
Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | lowest return | ||||||||
Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Dec. 31, 2008 | ||||||||
Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (29.25%) | ||||||||
1 Year | rr_AverageAnnualReturnYear01 | 3.72% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | (0.18%) | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 8.54% | ||||||||
BlackRock Small Cap Growth Fund II | Investor B Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is lower) | rr_MaximumDeferredSalesChargeOverOfferingPrice | 4.50% | [3] | |||||||
Management Fee | rr_ManagementFeesOverAssets | 0.70% | [2] | |||||||
Distribution and/or Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 1.00% | [2] | |||||||
Administration Fee | rr_Component1OtherExpensesOverAssets | 0.20% | [2] | |||||||
Miscellaneous Other Expenses | rr_Component2OtherExpensesOverAssets | 0.90% | [2] | |||||||
Other Expenses | rr_OtherExpensesOverAssets | 1.10% | [2] | |||||||
Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 2.80% | [2] | |||||||
Fee Waivers and Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (0.16%) | [2] | |||||||
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | 2.64% | [2] | |||||||
1 Year | rr_ExpenseExampleYear01 | 717 | ||||||||
3 Years | rr_ExpenseExampleYear03 | 1,203 | ||||||||
5 Years | rr_ExpenseExampleYear05 | 1,665 | ||||||||
10 Years | rr_ExpenseExampleYear10 | 2,839 | ||||||||
1 Year | rr_ExpenseExampleNoRedemptionYear01 | 267 | ||||||||
3 Years | rr_ExpenseExampleNoRedemptionYear03 | 853 | ||||||||
5 Years | rr_ExpenseExampleNoRedemptionYear05 | 1,465 | ||||||||
10 Years | rr_ExpenseExampleNoRedemptionYear10 | 2,839 | ||||||||
1 Year | rr_AverageAnnualReturnYear01 | 4.04% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | (0.64%) | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 8.28% | ||||||||
BlackRock Small Cap Growth Fund II | Investor C Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is lower) | rr_MaximumDeferredSalesChargeOverOfferingPrice | 1.00% | [4] | |||||||
Management Fee | rr_ManagementFeesOverAssets | 0.70% | [2] | |||||||
Distribution and/or Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 1.00% | [2] | |||||||
Administration Fee | rr_Component1OtherExpensesOverAssets | 0.20% | [2] | |||||||
Miscellaneous Other Expenses | rr_Component2OtherExpensesOverAssets | 0.64% | [2] | |||||||
Other Expenses | rr_OtherExpensesOverAssets | 0.84% | [2] | |||||||
Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 2.54% | [2] | |||||||
Fee Waivers and Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (0.16%) | [2] | |||||||
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | 2.38% | [2] | |||||||
1 Year | rr_ExpenseExampleYear01 | 341 | ||||||||
3 Years | rr_ExpenseExampleYear03 | 775 | ||||||||
5 Years | rr_ExpenseExampleYear05 | 1,336 | ||||||||
10 Years | rr_ExpenseExampleYear10 | 2,863 | ||||||||
1 Year | rr_ExpenseExampleNoRedemptionYear01 | 241 | ||||||||
3 Years | rr_ExpenseExampleNoRedemptionYear03 | 775 | ||||||||
5 Years | rr_ExpenseExampleNoRedemptionYear05 | 1,336 | ||||||||
10 Years | rr_ExpenseExampleNoRedemptionYear10 | 2,863 | ||||||||
1 Year | rr_AverageAnnualReturnYear01 | 7.51% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | (0.10%) | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 8.14% | ||||||||
BlackRock Small Cap Growth Fund II | Institutional Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is lower) | rr_MaximumDeferredSalesChargeOverOfferingPrice | none | ||||||||
Management Fee | rr_ManagementFeesOverAssets | 0.70% | [2] | |||||||
Distribution and/or Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | none | [2] | |||||||
Administration Fee | rr_Component1OtherExpensesOverAssets | 0.20% | [2] | |||||||
Miscellaneous Other Expenses | rr_Component2OtherExpensesOverAssets | 0.37% | [2] | |||||||
Other Expenses | rr_OtherExpensesOverAssets | 0.57% | [2] | |||||||
Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 1.27% | [2] | |||||||
Fee Waivers and Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (0.16%) | [2] | |||||||
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | 1.11% | [2] | |||||||
1 Year | rr_ExpenseExampleYear01 | 113 | ||||||||
3 Years | rr_ExpenseExampleYear03 | 387 | ||||||||
5 Years | rr_ExpenseExampleYear05 | 682 | ||||||||
10 Years | rr_ExpenseExampleYear10 | 1,520 | ||||||||
1 Year | rr_AverageAnnualReturnYear01 | 9.72% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | 1.15% | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 9.40% | ||||||||
BlackRock Small Cap Growth Fund II | Class R Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | none | ||||||||
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is lower) | rr_MaximumDeferredSalesChargeOverOfferingPrice | none | ||||||||
Management Fee | rr_ManagementFeesOverAssets | 0.70% | [2] | |||||||
Distribution and/or Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 0.50% | [2] | |||||||
Administration Fee | rr_Component1OtherExpensesOverAssets | 0.20% | [2] | |||||||
Miscellaneous Other Expenses | rr_Component2OtherExpensesOverAssets | 0.50% | [2] | |||||||
Other Expenses | rr_OtherExpensesOverAssets | 0.70% | [2] | |||||||
Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 1.90% | [2] | |||||||
Fee Waivers and Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (0.16%) | [2] | |||||||
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | 1.74% | [2] | |||||||
1 Year | rr_ExpenseExampleYear01 | 177 | ||||||||
3 Years | rr_ExpenseExampleYear03 | 581 | ||||||||
5 Years | rr_ExpenseExampleYear05 | 1,012 | ||||||||
10 Years | rr_ExpenseExampleYear10 | $ 2,209 | ||||||||
1 Year | rr_AverageAnnualReturnYear01 | 9.14% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | 0.50% | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 8.87% | ||||||||
BlackRock Small Cap Growth Fund II | Return After Taxes on Distributions | Investor A Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
1 Year | rr_AverageAnnualReturnYear01 | 1.51% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | (0.67%) | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 7.75% | ||||||||
BlackRock Small Cap Growth Fund II | Return After Taxes on Distributions and Sale of Shares | Investor A Shares
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
1 Year | rr_AverageAnnualReturnYear01 | 4.64% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | (0.22%) | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 7.38% | ||||||||
BlackRock Small Cap Growth Fund II | Russell 2000® Growth Index (reflects no deduction for fees, expenses or taxes)
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Risk/Return: | rr_RiskReturnAbstract | |||||||||
1 Year | rr_AverageAnnualReturnYear01 | 14.59% | ||||||||
5 Years | rr_AverageAnnualReturnYear05 | 3.49% | ||||||||
10 Years | rr_AverageAnnualReturnYear10 | 9.80% | ||||||||
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