THE MAINSTAY FUNDS
51 Madison Avenue
New York, NY 10010
December 26, 2012
Via EDGAR
Filing Desk
Securities and Exchange Commission
Office of Filings and Information Services
Branch of Registrations and Examinations
Mail Stop 0-25
100 F Street, NE
Washington, DC 20549
| Re: | The MainStay Funds |
| MainStay Common Stock Fund | |
| File Nos. 033-02610 and 811-04550 |
Dear Sir or Madam:
On behalf of the registrant listed above and pursuant to Rule 497(c) under the Securities Act of 1933, as amended, attached for filing are exhibits containing interactive data format risk/return summary information that reflects the risk/return summary information in a supplement, dated December 14, 2012 to the Prospectus and Summary Prospectus for the MainStay Common Stock Fund (Accession Number 0001144204-12-067929). The purpose of this filing is to submit an XBRL interactive data file in the manner provided by Rule 405 of Regulation S-T and General Instruction C.3.(g) of Form N-1A.
Any questions or comments on the filing should be directed to the undersigned at (973) 394-4505.
Sincerely,
/s/ Thomas C. Humbert
Thomas C. Humbert
Assistant Secretary
| MainStay Common Stock Fund (Prospectus Summary): | MainStay Common Stock Fund |
| MainStay Common Stock Fund |
THE MAINSTAY GROUP OF FUNDS
MainStay Common Stock Fund
Supplement dated December 14, 2012 (“Supplement”) to the Summary Prospectus, Prospectus and Statement of Additional Information, each dated February 28, 2012, as supplemented
This Supplement updates certain information contained in the Summary Prospectus, Prospectus and Statement of Additional Information for MainStay Common Stock Fund (the “Fund”), a series of The MainStay Funds (the “Trust”). You may obtain copies of the Fund’s Summary Prospectus, Prospectus and Statement of Additional Information free of charge, upon request, by calling toll-free 800-MAINSTAY (624-6782), or by writing to NYLIFE Distributors LLC, Attn: MainStay Marketing Department, 169 Lackawanna Avenue, Parsippany, New Jersey 07054. These documents are also available on the Fund’s website at mainstayinvestments.com. Please review this important information carefully.
At a meeting held on December 10-12, 2012, the Trust’s Board of Trustees, including the Independent Trustees, approved the following changes, effective February 28, 2013:
|
Investment Process Changes
The Investment Process section of the Summary Prospectus and Prospectus is changed to read as follows:
Investment Process: Madison Square Investors LLC, the Fund's Subadvisor, seeks to construct a broadly-diversified portfolio across sectors and industries using quantitative analysis to identify undervalued and overvalued securities. Investments are selected using an objective, disciplined and broadly-applied process while limiting exposure to risk. The Subadvisor seeks to control the Fund's exposure to risk by diversifying the Fund's portfolio over a large number of securities.
In unusual market conditions, the Fund may invest all or a portion of its assets in investment grade notes and bonds, cash and cash equivalents.
The Subadvisor may sell a security if it no longer believes the security will contribute to meeting the investment objective of the Fund, if better opportunities are identified, or if it determines the initial investment expectations are not being met.
|
PLEASE RETAIN THIS SUPPLEMENT FOR YOUR FUTURE REFERENCE.
|
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| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Prospectus Date | rr_ProspectusDate | Feb. 28, 2012 |
|
MainStay Common Stock Fund (Prospectus Summary): | MainStay Common Stock Fund
|
||
| Risk/Return: | rr_RiskReturnAbstract | |
| Risk/Return, Heading | rr_RiskReturnHeading | MainStay Common Stock Fund |
| Supplement Text | ck0000787441_SupplementTextBlock |
THE MAINSTAY GROUP OF FUNDS
MainStay Common Stock Fund
Supplement dated December 14, 2012 (“Supplement”) to the Summary Prospectus, Prospectus and Statement of Additional Information, each dated February 28, 2012, as supplemented
This Supplement updates certain information contained in the Summary Prospectus, Prospectus and Statement of Additional Information for MainStay Common Stock Fund (the “Fund”), a series of The MainStay Funds (the “Trust”). You may obtain copies of the Fund’s Summary Prospectus, Prospectus and Statement of Additional Information free of charge, upon request, by calling toll-free 800-MAINSTAY (624-6782), or by writing to NYLIFE Distributors LLC, Attn: MainStay Marketing Department, 169 Lackawanna Avenue, Parsippany, New Jersey 07054. These documents are also available on the Fund’s website at mainstayinvestments.com. Please review this important information carefully.
At a meeting held on December 10-12, 2012, the Trust’s Board of Trustees, including the Independent Trustees, approved the following changes, effective February 28, 2013:
|
| Investment Strategy, Narrative | rr_StrategyNarrativeTextBlock | Investment Process Changes
The Investment Process section of the Summary Prospectus and Prospectus is changed to read as follows:
Investment Process: Madison Square Investors LLC, the Fund's Subadvisor, seeks to construct a broadly-diversified portfolio across sectors and industries using quantitative analysis to identify undervalued and overvalued securities. Investments are selected using an objective, disciplined and broadly-applied process while limiting exposure to risk. The Subadvisor seeks to control the Fund's exposure to risk by diversifying the Fund's portfolio over a large number of securities.
In unusual market conditions, the Fund may invest all or a portion of its assets in investment grade notes and bonds, cash and cash equivalents.
The Subadvisor may sell a security if it no longer believes the security will contribute to meeting the investment objective of the Fund, if better opportunities are identified, or if it determines the initial investment expectations are not being met.
|
| Supplement Closing | ck0000787441_SupplementClosingTextBlock | PLEASE RETAIN THIS SUPPLEMENT FOR YOUR FUTURE REFERENCE.
|
|
MainStay Common Stock Fund | Class A
|
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| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | MSOAX |
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MainStay Common Stock Fund | Class B
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| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | MOPBX |
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MainStay Common Stock Fund | Class C
|
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| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | MGOCX |
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MainStay Common Stock Fund | Class I
|
||
| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | MSOIX |
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MainStay Common Stock Fund | Class R2
|
||
| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | MSORX |
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MainStay Common Stock Fund | INVESTOR CLASS
|
||
| Risk/Return: | rr_RiskReturnAbstract | |
| Trading Symbol | dei_TradingSymbol | MCSSX |
| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Document Type | dei_DocumentType | Other |
| Document Period End Date | dei_DocumentPeriodEndDate | Dec. 14, 2012 |
| Registrant Name | dei_EntityRegistrantName | MAINSTAY FUNDS |
| Central Index Key | dei_EntityCentralIndexKey | 0000787441 |
| Amendment Flag | dei_AmendmentFlag | false |
| Document Creation Date | dei_DocumentCreationDate | Dec. 14, 2012 |
| Document Effective Date | dei_DocumentEffectiveDate | Dec. 14, 2012 |
| Prospectus Date | rr_ProspectusDate | Feb. 28, 2012 |