Nuveen Core Bond Fund

Nuveen Core Bond Fund

Investment Objective

The investment objective of the Fund is to provide investors with current income to the extent consistent with preservation of capital.

Fees and Expenses of the Fund

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 $50,000 in the Fund or in other Nuveen Mutual Funds. More information about these and other discounts, as well as eligibility requirements for each share class, is available from your financial advisor and in “What Share Classes We Offer” on page 63 of the Fund’s prospectus, “How to Reduce Your Sales Charge” on page 68 of the prospectus, in the appendix to this prospectus titled “Variations in Sales Charge Reductions and Waivers Available Through Certain Intermediaries,” and “Purchase and Redemption of Fund Shares” on page S-99 of the Fund’s statement of additional information.

Shareholder Fees
(fees paid directly from your investment)

Shareholder Fees - Nuveen Core Bond Fund - USD ($)		Class A	Class C	Class R6	Class I	Class T
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)		3.00%	none	none	none	2.50%
Maximum Deferred Sales Charge (Load) (as a percentage of the lesser of purchase price or redemption proceeds)	[1]	none	1.00%	none	none	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends		none	none	none	none	none
Exchange Fee		none	none	none	none	none
Annual Low Balance Account Fee (for accounts under $1,000)	[2]	$ 15	$ 15	none	$ 15	$ 15

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

Annual Fund Operating Expenses - Nuveen Core Bond Fund		Class A	Class C	Class R6	Class I	Class T
Management Fees		0.47%	0.47%	0.47%	0.47%	0.47%
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	none	none	0.25%
Other Expenses		0.15%	0.16%	0.10%	0.15%	0.15%
Acquired Fund Fees and Expenses		0.01%	0.01%	0.01%	0.01%	0.01%
Total Annual Fund Operating Expenses		0.88%	1.64%	0.58%	0.63%	0.88%
Fee Waivers and/or Expense Reimbursements	[1]	(0.09%)	(0.10%)	(0.09%)	(0.09%)	(0.09%)
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements		0.79%	1.54%	0.49%	0.54%	0.79%

Example

The following 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 either redeem or do not redeem your shares at the end of a period. The example also assumes that your investment has a 5% return each year, that the Fund’s operating expenses remain the same and that the contractual fee waivers currently in place are not renewed beyond October 31, 2018. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Redemption

Expense Example - Nuveen Core Bond Fund - USD ($)	A	C	R6	I	T
1 Year	$ 378	$ 157	$ 50	$ 55	$ 329
3 Years	558	502	171	187	510
5 Years	759	877	309	337	712
10 Years	$ 1,339	$ 1,930	$ 712	$ 773	$ 1,294

No Redemption

Expense Example, No Redemption - Nuveen Core Bond Fund - USD ($)	A	C	R6	I	T
1 Year	$ 378	$ 157	$ 50	$ 55	$ 329
3 Years	558	502	171	187	510
5 Years	759	877	309	337	712
10 Years	$ 1,339	$ 1,930	$ 712	$ 773	$ 1,294

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 75% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of the sum of its net assets and the amount of any borrowings for investment purposes in bonds, such as:

• U.S. government securities (securities issued or guaranteed by the U.S. government or its agencies or instrumentalities), including zero coupon securities;

• residential and commercial mortgage-backed securities;

• asset-backed securities;

• corporate debt obligations, including obligations issued by special-purpose entities that are backed by corporate debt obligations; and

• municipal securities in an amount not to exceed 20% of the Fund’s net assets.

Bonds in the Fund will be rated investment grade at the time of purchase or, if unrated, determined to be of comparable quality by the Fund’s sub-adviser. At least 65% of the Fund’s debt securities must be either U.S. government securities or securities that are rated A or better or are unrated and of comparable quality as determined by the Fund’s sub-adviser. If the rating of a security is reduced or the credit quality of an unrated security declines after purchase, the Fund is not required to sell the security, but may consider doing so. Unrated securities will not exceed 25% of the Fund’s total assets.

The Fund’s sub-adviser selects securities using a “top-down” approach, which begins with the formulation of the sub-adviser’s general economic outlook. Following this, various sectors and industries are analyzed and selected for investment. Finally, the sub-adviser selects individual securities within these sectors or industries.

The Fund may invest up to 25% of its total assets in U.S. dollar denominated debt obligations of foreign corporations and governments.

Under normal market conditions, the Fund attempts to maintain a weighted average effective maturity for its portfolio securities of three to ten years and an average effective duration of two to six years. The Fund’s weighted average effective maturity and effective duration are measures of how the value of the Fund’s shares may react to interest rate changes.

To generate additional income, the Fund may invest up to 25% of its total assets in dollar roll transactions. In a dollar roll transaction, the Fund sells mortgage-backed securities for delivery in the current month while contracting with the same party to repurchase similar securities at a future date.

The Fund may utilize the following derivatives: options; futures contracts; options on futures contracts; interest rate caps, collars, and floors; swap agreements, including swap agreements on interest rates, security indexes and specific securities, and credit default swap agreements; and options on the foregoing types of swap agreements. The Fund may enter into standardized derivatives contracts traded on domestic or foreign securities exchanges, boards of trade, or similar entities, and non-standardized derivatives contracts traded in the over-the-counter market. The Fund may use these derivatives in an attempt to manage market risk, credit risk and yield curve risk, to manage the effective maturity or duration of securities in the Fund’s portfolio or for speculative purposes in an effort to increase the Fund’s yield or to enhance returns. The use of a derivative is speculative if the Fund is primarily seeking to enhance returns, rather than offset the risk of other positions. The Fund may not use any derivative to gain exposure to a security or type of security that it would be prohibited by its investment restrictions from purchasing directly.

Principal Risks

The value of your investment in this Fund will change daily. You could lose money by investing in the Fund. An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The principal risks of investing in the Fund, listed alphabetically, include:

Bond Market Liquidity Risk—Dealer inventories of bonds, which provide an indication of the ability of financial intermediaries to “make markets” in those bonds, are at or near historic lows in relation to market size. This reduction in market making capacity has the potential to decrease liquidity and increase price volatility in the fixed income markets in which the Fund invests, particularly during periods of economic or market stress. In addition, recent federal banking regulations may cause certain dealers to reduce their inventories of bonds, which may further decrease the Fund’s ability to buy or sell bonds. As a result of this decreased liquidity, the Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of bonds to meet shareholder redemption requests or to raise cash, those sales could further reduce the bonds’ prices.

Call Risk—If an issuer calls higher-yielding debt instruments held by the Fund, performance could be adversely impacted.

Credit Risk—Credit risk is the risk that an issuer of a debt security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a debt security may decline because of concerns about the issuer’s ability or willingness to make such payments.

Credit Spread Risk—Credit spread risk is the risk that credit spreads (i.e., the difference in yield between securities that is due to differences in their credit quality) may increase when the market believes that bonds generally have a greater risk of default. Increasing credit spreads may reduce the market values of the Fund’s debt securities. Credit spreads often increase more for lower rated and unrated securities than for investment grade securities. In addition, when credit spreads increase, reductions in market value will generally be greater for longer-maturity securities.

Currency Risk—Even though the non-U.S. securities held by the Fund are traded in U.S. dollars, their prices are typically indirectly influenced by currency fluctuations. Changes in currency exchange rates may affect the Fund’s net asset value, interest earned, and gains or losses realized on the sale of securities.

Cybersecurity Risk—Cybersecurity breaches may allow an unauthorized party to gain access to Fund assets, customer data, or proprietary information, or cause the Fund and/or its service providers to suffer data corruption or lose operational functionality.

Derivatives Risk—The use of derivatives involves additional risks and transaction costs which could leave the Fund in a worse position than if it had not used these instruments. Derivative instruments can be used to acquire or to transfer the risk and returns of a security or other asset without buying or selling the security or asset. These instruments may entail investment exposures that are greater than their cost would suggest. As a result, a small investment in derivatives can result in losses that greatly exceed the original investment. Derivatives can be highly volatile, illiquid and difficult to value. An over-the-counter derivative transaction between the Fund and a counterparty that is not cleared through a central counterparty also involves the risk that a loss may be sustained as a result of the failure of the counterparty to the contract to make required payments. The payment obligation for a cleared derivative transaction is guaranteed by a central counterparty, which exposes the Fund to the creditworthiness of the central counterparty.

Dollar Roll Transaction Risk—The use of dollar rolls can increase the volatility of the Fund’s share price, and it may have an adverse impact on performance unless the sub-adviser correctly predicts mortgage prepayments and interest rates.

Income Risk—The Fund’s income could decline during periods of falling interest rates or when the Fund experiences defaults on debt securities it holds.

Interest Rate Risk—Interest rate risk is the risk that the value of the Fund’s portfolio will decline because of rising interest rates. The Fund may be subject to a greater risk of rising interest rates than would normally be the case due to the current period of historically low rates and the effect of potential government fiscal policy initiatives and resulting market reaction to those initiatives. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities.

Mortgage- and Asset-Backed Securities Risk—These securities generally can be prepaid at any time, and prepayments that occur either more quickly or more slowly than expected can adversely impact the value of such securities. They are also subject to extension risk, which is the risk that rising interest rates could cause mortgages or other obligations underlying the securities to be prepaid more slowly than expected, thereby lengthening the duration of such securities, increasing their sensitivity to interest rate changes and causing their prices to decline. A mortgage-backed security may be negatively affected by the quality of the mortgages underlying such security, the credit quality of its issuer or guarantor, and the nature and structure of its credit support.

Municipal Securities Risk—The values of municipal securities held by the Fund may be adversely affected by local political and economic conditions and developments. Adverse conditions in an industry significant to a local economy could have a correspondingly adverse effect on the financial condition of local issuers.

Non-U.S./Emerging Markets Risk—Non-U.S. issuers or U.S. issuers with significant non-U.S. operations may be subject to risks in addition to those of issuers located in or that principally operate in the United States as a result of, among other things, political, social and economic developments abroad and different legal, regulatory and tax environments. These additional risks may be heightened for securities of issuers located in, or with significant operations in, emerging market countries.

Valuation Risk—The debt securities in which the Fund invests typically are valued by a pricing service utilizing a range of market-based inputs and assumptions, including readily available market quotations obtained from broker-dealers making markets in such instruments, cash flows and transactions for comparable instruments. There is no assurance that the Fund will be able to sell a portfolio security at the price established by the pricing service, which could result in a loss to the Fund. Pricing services generally price debt securities assuming orderly transactions of an institutional “round lot” size, but some trades may occur in smaller, “odd lot” sizes, often at lower prices than institutional round lot trades. Different pricing services may incorporate different assumptions and inputs into their valuation methodologies, potentially resulting in different values for the same securities. As a result, if the Fund were to change pricing services, or if the Fund’s pricing service were to change its valuation methodology, there could be a material impact, either positive or negative, on the Fund’s net asset value.

Zero Coupon Bonds Risk—Because interest on zero coupon bonds is not paid on a current basis, the values of zero coupon bonds will be more volatile in response to interest rate changes than the values of bonds that distribute income regularly. Although zero coupon bonds generate income for accounting purposes, they do not produce cash flow, and thus the Fund could be forced to liquidate securities at an inopportune time in order to generate cash to distribute to shareholders as required by tax laws.

Fund Performance

The following bar chart and table provide some indication of the potential risks of investing in the Fund. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at www.nuveen.com/performance or by calling (800) 257-8787.

The bar chart below shows the variability of the Fund’s performance from year to year for Class A shares. The bar chart and highest/lowest quarterly returns that follow do not reflect sales charges, and if these charges were reflected, the returns would be less than those shown.

Class A Annual Total Return

During the ten-year period ended December 31, 2016, the Fund’s highest and lowest quarterly returns were 9.70% and -5.11%, respectively, for the quarters ended June 30, 2009 and September 30, 2008.

The table below shows the variability of the Fund’s average annual returns and how they compare over the time periods indicated with those of a broad measure of market performance and an index of funds with similar investment objectives. All 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 Class A shares only; after-tax returns for other share classes will vary. Your own actual after-tax returns will depend on your specific tax situation and may differ from what is shown here. After-tax returns are not relevant to investors who hold Fund shares in tax-deferred accounts such as IRAs or employer-sponsored retirement plans.

Both the bar chart and the table assume that all distributions have been reinvested. Performance reflects fee waivers, if any, in effect during the periods presented. If any such waivers had not been in place, returns would have been reduced.

Performance is not shown for Class T shares, which have not been offered for a full calendar year.

Average Annual Total Returns
for the Periods Ended
December 31, 2016

Average Annual Total Returns - Nuveen Core Bond Fund		Inception Date	1 Year	5 Years	10 Years	Since Inception
Class A		Jan. 09, 1995	(1.34%)	1.49%	3.47%
Class A | (return after taxes on distributions)		Jan. 09, 1995	(2.19%)	0.24%	2.09%
Class A | (return after taxes on distributions and sale of Fund shares)		Jan. 09, 1995	(0.75%)	0.75%	2.21%
Class C		Jan. 18, 2011	0.91%	1.32%		1.58%
Class C | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	[1]					3.15%
Class C | Lipper Core Bond Funds Category Average (reflects no deduction for taxes or sales loads)	[2]					3.08%
Class R6		Jan. 20, 2015	2.00%			0.03%
Class R6 | Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	[1]					0.94%
Class R6 | Lipper Core Bond Funds Category Average (reflects no deduction for taxes or sales loads)	[2]					0.88%
Class I		Jan. 05, 1993	1.96%	2.34%	3.99%
Bloomberg Barclays U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	[1]		2.65%	2.23%	4.34%
Lipper Core Bond Funds Category Average (reflects no deduction for taxes or sales loads)	[2]		3.00%	2.41%	3.94%

[1] The contingent deferred sales charge on Class C shares applies only to redemptions within 12 months of purchase.

[2] Fee applies to the following types of accounts under $1,000 held directly with the Fund: individual retirement accounts (IRAs), Coverdell Education Savings Accounts and accounts established pursuant to the Uniform Transfers to Minors Act (UTMA) or Uniform Gifts to Minors Act (UGMA).

[1] The Fund’s investment adviser has agreed to waive fees and/or reimburse other Fund expenses through October 31, 2018 so that Total Annual Fund Operating Expenses (excluding 12b-1 distribution and/or service fees, interest expenses, taxes, Acquired Fund Fees and Expenses, fees incurred in acquiring and disposing of portfolio securities and extraordinary expenses) do not exceed 0.53% of the average daily net assets of any class of Fund shares. However, because Class R6 shares are not subject to sub-transfer agent and similar fees, the Total Annual Fund Operating Expenses for the Class R6 shares will be less than the expense limitation. Fee waivers and/or expense reimbursements will not be terminated prior to that time without the approval of the Board of Directors of the Fund.

[1] The performance of the other share classes will differ due to their different expense structures.

[1] An unmanaged fixed income index covering the U.S. investment grade fixed-rate bond market.

[2] Represents the average annualized returns for all reporting funds in the Lipper Core Bond Funds Category.