485BPOS

AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON

August 16, 2013

Registration Nos. 2-92633

811-04087

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

              REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933          [    ]

Post-Effective Amendment No. 134            [X]

and

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [    ]

                Amendment No. 135                  [X]

MANNING & NAPIER FUND, INC.

(Exact name of registrant as specified in charter)

290 Woodcliff Drive

Fairport, NY 14450

(Address of Principal Executive Offices) (Zip Code)

(Registrant’s Telephone Number, Including Area Code)

(585) 325-6880

B. Reuben Auspitz

c/o Manning & Napier Fund, Inc.

290 Woodcliff Drive

Fairport, NY 14450

(Name and Address of Agent for Service)

Copies to:

Timothy W. Levin, Esquire

Morgan, Lewis & Bockius, LLP

1701 Market St.

Philadelphia, PA 19103

It is proposed that this filing will become effective:

/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: Investment Company Shares

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 Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has caused this Post-Effective Amendment to be signed on its behalf by the undersigned, thereunto duly authorized, in the Town of Fairport and State of New York on the 16^th day of August, 2013.

Manning & Napier Fund, Inc.
(Registrant)
By:	/s/ B. Reuben Auspitz
	B. Reuben Auspitz
	President

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated.

Signature	Title	Date
/s/ B. Reuben Auspitz B. Reuben Auspitz	President, Principal Executive Officer, Director	August 16, 2013
/s/ Harris H. Rusitzky* Harris H. Rusitzky	Director	August 16, 2013
/s/ Peter L. Faber* Peter L. Faber	Director	August 16, 2013
/s/ Stephen B. Ashley* Stephen B. Ashley	Director	August 16, 2013
/s/ Paul A. Brooke* Paul A. Brooke	Director	August 16, 2013
/s/ Chester N. Watson* Chester N. Watson	Director	August 16, 2013
/s/ Christine Glavin Christine Glavin	Principal Financial Officer, Chief Financial Officer, Treasurer	August 16, 2013

* By:	/s/ Christine Glavin
	Christine Glavin

* Pursuant to powers of attorney dated November 21, 2002, January 10, 2008 and August 22, 2012. See Item 28(q), Item 28(q)(1), and Item 28(q)(2)of this Registration Statement.

Exhibit Index

EX-101.ins XBRL Instance Document

EX-101.sch XBRL Taxonomy Extension Schema Document

EX-101.cal XBRL Taxonomy Extension Calculation Linkbase Document

EX-101.lab XBRL Taxonomy Extension Labels Linkbase

EX-101.pre XBRL Taxonomy Extension Presentation Linkbase Document

EX-101.def XBRL Taxonomy Extension Definition Linkbase

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	MANNING & NAPIER FUND, INC /NY/
Prospectus Date	rr_ProspectusDate	Aug. 01, 2013
Core Plus Bond Series
Risk/Return:	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	Core Plus Bond Series Summary Section
Objective [Heading]	rr_ObjectiveHeading	Investment Goal
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Series’ investment objective is to provide long-term total return by investing primarily in fixed income securities.
Expense [Heading]	rr_ExpenseHeading	Fees and Expenses
Expense Narrative [Text Block]	rr_ExpenseNarrativeTextBlock	This table describes the fees and expenses you may pay if you buy and hold shares of the Series.
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)
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	Portfolio Turnover
Portfolio Turnover [Text Block]	rr_PortfolioTurnoverTextBlock	The Series 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 Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 41% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	41.00%
Expenses Restated to Reflect Current [Text]	rr_ExpensesRestatedToReflectCurrent	Management fees have been restated to reflect contractual changes to the management fees paid by the Series. Other expenses for the Series’ Class S shares have been restated to reflect the implementation of a 0.25% shareholder services fee.
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series’ financial statements) because the financial highlights include only the Series’ direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.
Expense Example [Heading]	rr_ExpenseExampleHeading	Example
Expense Example Narrative [Text Block]	rr_ExpenseExampleNarrativeTextBlock	The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series’ operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading]	rr_StrategyHeading	Principal Investment Strategies
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Series will invest, under normal circumstances, at least 80% of its net assets in bonds and other financial instruments, principally exchange traded funds (ETFs), with economic characteristics similar to bonds. For purposes of this policy, bonds may include government, corporate, and pass-through securities, and mortgage dollar rolls, which are transactions in which the Series sells a mortgage-backed security and simultaneously contracts to purchase similar securities on a specified future date at a predetermined price. The corporate bonds may be issued by domestic corporations, foreign entities (i.e., yankee bonds), and/or supranational entities, such as the World Bank. Pass-through securities are generally issued by domestic entities (such as GNMA, FNMA, and FHLMC) and entitle the holders to a pro rata share of the cash flows generated by the instruments underlying the security (mortgages, credit card receivables, car loans, etc.). The Series may invest up to 20% of its assets in below investment grade securities (also referred to as “high yield bonds” or “junk bonds”) and an additional 20% may be invested in non-U.S. dollar denominated securities, including securities issued by companies located in emerging markets. The Series may purchase shares of ETFs, including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Fund to invest in a particular sector of the market more efficiently than would otherwise be possible. Maturity and Portfolio Duration — The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor’s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise. Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security’s price to changes in interest rates. The prices of fixed income securities with shorter durations generally will be less affected by changes in interest rates than the prices of fixed income securities with longer durations. For example, a 10 year duration means the fixed income security will decrease in value by 10% if interest rates rise 1% and increase in value by 10% if interest rates fall 1%. Credit Quality — The Series will typically invest in investment grade securities, those securities rated BBB or above by S&P or Baa or above by Moody’s (or determined to be of equivalent quality by the Advisor); however, the Series may invest up to 20% of its assets in below investment grade securities, those rated below BBB- by S&P and those rated below Baa3 by Moody’s (or determined to be of equivalent quality by the Advisor). The Series may invest in securities with any rating, including those that have defaulted, are not rated, or have had their rating withdrawn. Bond Selection Process — When investing in corporate and pass-through securities, the Advisor attempts to identify sectors, as well as individual securities within those sectors, that offer yields and credit/prepayment spreads sufficient to compensate the Series for the risks specific to a given sector or security. Credit spreads are a measure of the difference between corporate bonds’ yields to maturity and those of U.S. Treasury securities with similar maturities; this difference compensates investors for the credit risk inherent in corporate bonds. Prepayment spreads quantify the additional yield paid by mortgage-backed bonds relative to U.S. Treasury securities to compensate investors for the risk that mortgage-backed securities’ prepayments will vary over time. The Advisor may also invest in U.S. Treasury and U.S. Agency securities when it believes they are an attractive investment option relative to corporate and pass-through securities. In analyzing the relative attractiveness of sectors and/or individual securities, the Advisor considers: The relevant economic conditions and sector trends. The interest rate sensitivities of the particular sectors and securities. The yield differentials across sectors, credit qualities, pass-through security types, and maturities. “Bottom-up” factors such as issuer-specific credit metrics for corporate bonds and coupon, prepayment, and convexity components (which reflect changing interest rate sensitivities) of pass-through securities. The Series may buy and sell portfolio securities actively. If it does, its portfolio turnover rate and transaction costs will rise, which may lower fund performance and may increase the likelihood of capital gain distributions.
Risk [Heading]	rr_RiskHeading	Principal Risks of Investing in the Series
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The value of your investment will fluctuate in response to changes in interest rates, credit spreads, and prepayment spreads. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs: Interest rates rise, credit spreads widen, and/or prepayment spreads widen. These events alone or in combination can cause bond prices to fall and reduce the value of the Series’ portfolio. Longer-term bonds will experience greater fluctuations than shorter-term bonds given their greater sensitivity to interest rate changes. The issuer of a corporate bond owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded; this risk is greater for lower quality bonds, which include bonds rated lower than BBB by S&P or Baa by Moody’s. Market volatility and/or prepayment spreads change to such a degree that prepayment uncertainty/risks are reassessed; the greater the uncertainty/risk, the wider the requisite prepayment spread. The Advisor’s judgment about the attractiveness, relative value, or potential appreciation of a particular sector or security prove to be incorrect. In addition to the risks discussed above, the Series is subject to additional risks due its ability to invest up to 20% of its assets in high-yield bonds: High yield bonds may underperform other sectors of the bond market, or the market as a whole. The performance of high yield bonds tends to be more volatile than that of other sectors of the bond market. Given the total size of the high yield bond market, high yield bonds can be less liquid than investment grade securities. The Series’ investments in high yield bonds will subject it to a substantial degree of credit risk. Since high yield bonds are lower-rated corporate or government bonds, they pay higher income than investment grade bonds to compensate for the higher risk assumed by their investors. These bonds are typically issued by companies that are restructuring, carry higher debt burdens, or are smaller and/or less established than investment grade companies. In addition, foreign countries characterized by political or economic instability may issue bonds that carry below investment grade credit ratings. Because of the types of issuers of these bonds, they carry more risk of default than higher rated bonds. The Series is also subject to additional risks given its ability to invest up to 20% of its assets in non-U.S. dollar denominated (i.e., foreign) bonds. These risks include: The prices of foreign bonds may at times move in a different direction than the prices of bonds issued in the United States. Because such investments are denominated in the currencies of the countries in which the issuers are located, the value of the Series may be affected by changes in exchange rates between those currencies and the U.S. dollar. The Advisor’s attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses. Investments in emerging market countries can be more volatile than investments in more developed countries. The Series’ mortgage dollar rolls could lose money if the price of the mortgage-backed securities sold falls below the agreed upon repurchase price, or if the counterparty is unable to honor the agreement. The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities. The Series will also bear its proportionate shares of the expenses of the purchased ETF in addition to its own expenses. The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series’ management or performance. Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series’ shares. Redemptions by these institutions or individuals in the Series may impact the Series’ liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series’ portfolio turnover rate and transaction costs to rise, which may negatively affect the Series’ performance and increase the likelihood of capital gain distributions for remaining shareholders. The risks above could contribute to a decline in the value of the Series’ investments and, consequently, the share price of the Series.
Risk Lose Money [Text]	rr_RiskLoseMoney	The value of your investment will fluctuate in response to changes in interest rates, credit spreads, and prepayment spreads. You could lose money on your investment in the Series or the Series could underperform
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	Summary of Past Performance
Performance Narrative [Text Block]	rr_PerformanceNarrativeTextBlock	The bar chart and average annual total return table provide some indication of the risks of investing in the Series. Class I shares were not active prior to the date of this prospectus. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that he Class I shares have lower expenses. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S shares of the Series for each full calendar year since its inception. The total return table shows how the average annual total returns for the Class S shares of the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S shares of the Series for each full calendar year since its inception. The total return table shows how the average annual total returns for the Class S shares of the Series for different periods compare to those of a broad-based securities index.
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	www.manning-napier.com
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future.
Bar Chart [Heading]	rr_BarChartHeading	CALENDAR YEARS ENDED DECEMBER 31
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Quarterly Returns Highest (quarter ended 09/30/09): 7.48% Lowest (quarter ended 09/30/08): (3.42)% Year-to-date performance (before taxes) through June 30, 2013: -1.80%
Bar Chart, Returns for Class Not Offered in Prospectus [Text]	rr_BarChartReturnsForClassNotOfferedInProspectus	Class I shares were not active prior to the date of this prospectus. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that he Class I shares have lower expenses.
Performance Table Heading	rr_PerformanceTableHeading	AVERAGE ANNUAL TOTAL RETURNS FOR PERIODS ENDED DECEMBER 31, 2012
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	The 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	After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	The 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 an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.
Core Plus Bond Series | Class S
Risk/Return:	rr_RiskReturnAbstract
Shareholder Fees (fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.45%	[1]
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Shareholder Services Fee	rr_Component1OtherExpensesOverAssets	0.25%
Remainder of Other Expenses	rr_Component2OtherExpensesOverAssets	0.05%
Other Expenses	rr_OtherExpensesOverAssets	0.30%	[2]
Acquired Fund Fees and Expenses (AFFE)	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.76%	[3]
1 Year	rr_ExpenseExampleYear01	78
3 Years	rr_ExpenseExampleYear03	243
5 Years	rr_ExpenseExampleYear05	422
10 Years	rr_ExpenseExampleYear10	942
2006	rr_AnnualReturn2006	4.59%
2007	rr_AnnualReturn2007	4.34%
2008	rr_AnnualReturn2008	1.24%
2009	rr_AnnualReturn2009	14.35%
2010	rr_AnnualReturn2010	10.18%
2011	rr_AnnualReturn2011	4.91%
2012	rr_AnnualReturn2012	10.94%
Year to Date Return, Label	rr_YearToDateReturnLabel	Year-to-date performance
Bar Chart, Year to Date Return, Date	rr_BarChartYearToDateReturnDate	Jun. 30, 2013
Bar Chart, Year to Date Return	rr_BarChartYearToDateReturn	(1.80%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	Highest
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Sep. 30, 2009
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	7.48%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	Lowest
Lowest Quarterly Return, Date	rr_BarChartLowestQuarterlyReturnDate	Sep. 30, 2008
Lowest Quarterly Return	rr_BarChartLowestQuarterlyReturn	(3.42%)
1 Year	rr_AverageAnnualReturnYear01	10.94%
5 Years	rr_AverageAnnualReturnYear05	8.22%
Since Inception	rr_AverageAnnualReturnSinceInception	6.61%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 21, 2005
Core Plus Bond Series | Class I
Risk/Return:	rr_RiskReturnAbstract
Shareholder Fees (fees paid directly from your investment)	rr_ShareholderFeeOther	none
Management Fee	rr_ManagementFeesOverAssets	0.45%	[1]
Distribution (12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Shareholder Services Fee	rr_Component1OtherExpensesOverAssets	none
Remainder of Other Expenses	rr_Component2OtherExpensesOverAssets	0.05%
Other Expenses	rr_OtherExpensesOverAssets	0.05%	[2]
Acquired Fund Fees and Expenses (AFFE)	rr_AcquiredFundFeesAndExpensesOverAssets	0.01%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.51%	[3]
1 Year	rr_ExpenseExampleYear01	52
3 Years	rr_ExpenseExampleYear03	164
5 Years	rr_ExpenseExampleYear05	285
10 Years	rr_ExpenseExampleYear10	$ 640
Core Plus Bond Series | Return After Taxes on Distributions | Class S
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	9.20%
5 Years	rr_AverageAnnualReturnYear05	6.35%
Since Inception	rr_AverageAnnualReturnSinceInception	4.96%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 21, 2005
Core Plus Bond Series | Return After Taxes on Distributions and Sale of Series Shares | Class S
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	7.23%
5 Years	rr_AverageAnnualReturnYear05	6.02%
Since Inception	rr_AverageAnnualReturnSinceInception	4.74%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 21, 2005
Core Plus Bond Series | Bank of America Merrill Lynch U.S. Corporate, Government & Mortgage Index (reflects no deduction for fees, expenses, or taxes)
Risk/Return:	rr_RiskReturnAbstract
1 Year	rr_AverageAnnualReturnYear01	4.42%
5 Years	rr_AverageAnnualReturnYear05	6.03%
Since Inception	rr_AverageAnnualReturnSinceInception	5.66%
Inception Date	rr_AverageAnnualReturnInceptionDate	Apr. 21, 2005

[1] Management fees have been restated to reflect contractual changes to the management fees paid by the Series.

[2] Other expenses for the Series' Class S shares have been restated to reflect the implementation of a 0.25% shareholder services fee.

[3] The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	MANNING & NAPIER FUND, INC /NY/
Prospectus Date	rr_ProspectusDate	Aug. 01, 2013
Document Creation Date	dei_DocumentCreationDate	Jul. 31, 2013

XML

Core Plus Bond Series

Core Plus Bond Series

Summary Section

Investment Goal

The Series’ investment objective is to provide long-term total return by investing primarily in fixed income securities.

Fees and Expenses

This table describes the fees and expenses you may pay if you buy and hold shares of the Series.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees Core Plus Bond Series (USD $)	Class S	Class I
Shareholder Fees (fees paid directly from your investment)	none	none

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

Annual Fund Operating Expenses Core Plus Bond Series		Class S	Class I
Management Fee	[1]	0.45%	0.45%
Distribution (12b-1) Fees		none	none
Other Expenses	[2]	0.30%	0.05%
Shareholder Services Fee		0.25%	none
Remainder of Other Expenses		0.05%	0.05%
Acquired Fund Fees and Expenses (AFFE)		0.01%	0.01%
Total Annual Fund Operating Expenses	[3]	0.76%	0.51%

Example

The Example below is intended to help you compare the cost of investing in the Series with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Series 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 Series’ operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example Core Plus Bond Series (USD $)	CLASS S	CLASS I
1 Year	78	52
3 Years	243	164
5 Years	422	285
10 Years	942	640

Portfolio Turnover

The Series 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 Series shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the performance of the Series. During the most recent fiscal year, the portfolio turnover rate of the Series was 41% of the average value of its portfolio.

Principal Investment Strategies

The Series will invest, under normal circumstances, at least 80% of its net assets in bonds and other financial instruments, principally exchange traded funds (ETFs), with economic characteristics similar to bonds. For purposes of this policy, bonds may include government, corporate, and pass-through securities, and mortgage dollar rolls, which are transactions in which the Series sells a mortgage-backed security and simultaneously contracts to purchase similar securities on a specified future date at a predetermined price. The corporate bonds may be issued by domestic corporations, foreign entities (i.e., yankee bonds), and/or supranational entities, such as the World Bank. Pass-through securities are generally issued by domestic entities (such as GNMA, FNMA, and FHLMC) and entitle the holders to a pro rata share of the cash flows generated by the instruments underlying the security (mortgages, credit card receivables, car loans, etc.). The Series may invest up to 20% of its assets in below investment grade securities (also referred to as “high yield bonds” or “junk bonds”) and an additional 20% may be invested in non-U.S. dollar denominated securities, including securities issued by companies located in emerging markets. The Series may purchase shares of ETFs, including to establish a diversified position in a particular sector of the market or to be fully invested while awaiting an opportunity to purchase securities directly. The Advisor believes that purchasing ETFs in such a manner may allow the Fund to invest in a particular sector of the market more efficiently than would otherwise be possible.

Maturity and Portfolio Duration — The Series is not subject to any maturity or duration restrictions but will vary its average dollar weighted portfolio maturity and duration depending on the Advisor’s outlook for yields. For example, the Advisor may invest in longer-term bonds when it expects yields to fall in order to realize gains for the Series. Likewise, the Advisor may invest in shorter-term bonds when it expects yields to rise. Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security’s price to changes in interest rates. The prices of fixed income securities with shorter durations generally will be less affected by changes in interest rates than the prices of fixed income securities with longer durations. For example, a 10 year duration means the fixed income security will decrease in value by 10% if interest rates rise 1% and increase in value by 10% if interest rates fall 1%.

Credit Quality — The Series will typically invest in investment grade securities, those securities rated BBB or above by S&P or Baa or above by Moody’s (or determined to be of equivalent quality by the Advisor); however, the Series may invest up to 20% of its assets in below investment grade securities, those rated below BBB- by S&P and those rated below Baa3 by Moody’s (or determined to be of equivalent quality by the Advisor). The Series may invest in securities with any rating, including those that have defaulted, are not rated, or have had their rating withdrawn.

Bond Selection Process — When investing in corporate and pass-through securities, the Advisor attempts to identify sectors, as well as individual securities within those sectors, that offer yields and credit/prepayment spreads sufficient to compensate the Series for the risks specific to a given sector or security. Credit spreads are a measure of the difference between corporate bonds’ yields to maturity and those of U.S. Treasury securities with similar maturities; this difference compensates investors for the credit risk inherent in corporate bonds. Prepayment spreads quantify the additional yield paid by mortgage-backed bonds relative to U.S. Treasury securities to compensate investors for the risk that mortgage-backed securities’ prepayments will vary over time.

The Advisor may also invest in U.S. Treasury and U.S. Agency securities when it believes they are an attractive investment option relative to corporate and pass-through securities.

In analyzing the relative attractiveness of sectors and/or individual securities, the Advisor considers:

• The relevant economic conditions and sector trends.

• The interest rate sensitivities of the particular sectors and securities.

• The yield differentials across sectors, credit qualities, pass-through security types, and maturities.

• “Bottom-up” factors such as issuer-specific credit metrics for corporate bonds and coupon, prepayment, and convexity components (which reflect changing interest rate sensitivities) of pass-through securities.

The Series may buy and sell portfolio securities actively. If it does, its portfolio turnover rate and transaction costs will rise, which may lower fund performance and may increase the likelihood of capital gain distributions.

Principal Risks of Investing in the Series

The value of your investment will fluctuate in response to changes in interest rates, credit spreads, and prepayment spreads. You could lose money on your investment in the Series or the Series could underperform if any of the following occurs:

• Interest rates rise, credit spreads widen, and/or prepayment spreads widen. These events alone or in combination can cause bond prices to fall and reduce the value of the Series’ portfolio. Longer-term bonds will experience greater fluctuations than shorter-term bonds given their greater sensitivity to interest rate changes.

• The issuer of a corporate bond owned by the Series defaults on its obligation to pay principal and/or interest or has its credit rating downgraded; this risk is greater for lower quality bonds, which include bonds rated lower than BBB by S&P or Baa by Moody’s.

• Market volatility and/or prepayment spreads change to such a degree that prepayment uncertainty/risks are reassessed; the greater the uncertainty/risk, the wider the requisite prepayment spread.

• The Advisor’s judgment about the attractiveness, relative value, or potential appreciation of a particular sector or security prove to be incorrect.

In addition to the risks discussed above, the Series is subject to additional risks due its ability to invest up to 20% of its assets in high-yield bonds:

• High yield bonds may underperform other sectors of the bond market, or the market as a whole.

• The performance of high yield bonds tends to be more volatile than that of other sectors of the bond market.

• Given the total size of the high yield bond market, high yield bonds can be less liquid than investment grade securities.

• The Series’ investments in high yield bonds will subject it to a substantial degree of credit risk.

Since high yield bonds are lower-rated corporate or government bonds, they pay higher income than investment grade bonds to compensate for the higher risk assumed by their investors. These bonds are typically issued by companies that are restructuring, carry higher debt burdens, or are smaller and/or less established than investment grade companies. In addition, foreign countries characterized by political or economic instability may issue bonds that carry below investment grade credit ratings. Because of the types of issuers of these bonds, they carry more risk of default than higher rated bonds.

The Series is also subject to additional risks given its ability to invest up to 20% of its assets in non-U.S. dollar denominated (i.e., foreign) bonds. These risks include:

• The prices of foreign bonds may at times move in a different direction than the prices of bonds issued in the United States.

• Because such investments are denominated in the currencies of the countries in which the issuers are located, the value of the Series may be affected by changes in exchange rates between those currencies and the U.S. dollar.

• The Advisor’s attempt to manage the currency risk described above may not accurately predict movements in currency exchange rates, which could cause the Series to sustain losses.

• Investments in emerging market countries can be more volatile than investments in more developed countries.

The Series’ mortgage dollar rolls could lose money if the price of the mortgage-backed securities sold falls below the agreed upon repurchase price, or if the counterparty is unable to honor the agreement.

The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio of securities. The Series will also bear its proportionate shares of the expenses of the purchased ETF in addition to its own expenses.

The Series is subject to the risk that certain securities may be difficult or impossible to sell at the time and the price that the Series would like. The Series may have to lower the price, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on the Series’ management or performance.

Certain institutions or individuals may from time to time own (beneficially or of record) or control a significant percentage of the Series’ shares. Redemptions by these institutions or individuals in the Series may impact the Series’ liquidity and net asset value (NAV). These redemptions may also force the Series to sell securities, which may cause the Series to experience a loss (particularly during periods of declining or illiquid markets), as well as cause the Series’ portfolio turnover rate and transaction costs to rise, which may negatively affect the Series’ performance and increase the likelihood of capital gain distributions for remaining shareholders.

The risks above could contribute to a decline in the value of the Series’ investments and, consequently, the share price of the Series.

Summary of Past Performance

The bar chart and average annual total return table provide some indication of the risks of investing in the Series. Class I shares were not active prior to the date of this prospectus. Because the Class S shares of the Series invest in the same portfolio of securities, returns for the Class I shares will be substantially similar to those of the Class S shares. Performance will be different only to the extent that he Class I shares have lower expenses. The bar chart shows the variability in the performance of the Series by showing changes in the performance of the Class S shares of the Series for each full calendar year since its inception. The total return table shows how the average annual total returns for the Class S shares of the Series for different periods compare to those of a broad-based securities index. Past performance (both before and after taxes) does not necessarily indicate how the Series will perform in the future. Quarterly performance information of the Series is available at www.manning-napier.com.

CALENDAR YEARS ENDED DECEMBER 31

Quarterly Returns
Highest (quarter ended 09/30/09): 7.48%
Lowest (quarter ended 09/30/08): (3.42)%

Year-to-date performance (before taxes) through June 30, 2013: -1.80%

AVERAGE ANNUAL TOTAL RETURNS
FOR PERIODS ENDED DECEMBER 31, 2012

Average Annual Total Returns Core Plus Bond Series	1 Year	5 Years	Since Inception	Inception Date
Class S	10.94%	8.22%	6.61%	Apr. 21, 2005
Class S Return After Taxes on Distributions	9.20%	6.35%	4.96%	Apr. 21, 2005
Class S Return After Taxes on Distributions and Sale of Series Shares	7.23%	6.02%	4.74%	Apr. 21, 2005
Bank of America Merrill Lynch U.S. Corporate, Government & Mortgage Index (reflects no deduction for fees, expenses, or taxes)	4.42%	6.03%	5.66%	Apr. 21, 2005

The 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 an investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold their Series shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

[1] Management fees have been restated to reflect contractual changes to the management fees paid by the Series.

[2] Other expenses for the Series' Class S shares have been restated to reflect the implementation of a 0.25% shareholder services fee.

[3] The total annual fund operating expenses in this fee table may not correlate to the expense ratio in the financial highlights in this prospectus (and in the Series' financial statements) because the financial highlights include only the Series' direct operating expenses and do not include fees and expenses incurred indirectly by the Series through its investments in other investment companies.

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Document and Entity Information	12 Months Ended
	Aug. 01, 2013
Risk/Return:
Document Type	485BPOS
Document Period End Date	Dec. 31, 2012
Registrant Name	MANNING & NAPIER FUND, INC /NY/
Central Index Key	0000751173
Amendment Flag	false
Document Creation Date	Jul. 31, 2013
Document Effective Date	Jul. 31, 2013
Prospectus Date	Aug. 01, 2013