UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-21809

Nuveen S&P 500 Dynamic Overwrite Fund

(Exact name of registrant as specified in charter)

    333 West Wacker Drive, Chicago, Illinois 60606    

(Address of principal executive offices) (Zip code)

Kevin J. McCarthy—Vice President and Secretary

    333 West Wacker Drive, Chicago, Illinois 60606    

(Name and address of agent for service)

Registrant’s telephone number, including area code:     312-917-7700    

Date of fiscal year end:       December 31      

Date of reporting period:  March 31, 2016  

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Schedule of Investments

SPXX

Nuveen S&P 500 Dynamic Overwrite Fund
Portfolio of Investments	March 31, 2016 (Unaudited)

Shares		Description (1)	Value
		LONG-TERM INVESTMENTS – 100.7%
		COMMON STOCKS – 100.7%
		Aerospace & Defense – 2.5%
	10,660	Boeing Company	$	1,353,180
	13,978	Honeywell International Inc.		1,566,235
	4,500	Lockheed Martin Corporation		996,750
	6,361	Raytheon Company		780,049
	12,156	United Technologies Corporation, (2)		1,216,816
		Total Aerospace & Defense		5,913,030
		Air Freight & Logistics – 0.7%
	15,007	United Parcel Service, Inc., Class B, (2)		1,582,788
		Airlines – 0.4%
	9,915	Alaska Air Group, Inc.		813,228
	7,400	JetBlue Airways Corporation, (3)		156,288
		Total Airlines		969,516
		Auto Components – 0.1%
	9,310	Cooper Tire & Rubber Company		344,656
		Automobiles – 0.6%
	79,596	Ford Motor Company		1,074,546
	1,696	Tesla Motors Inc., (3)		389,690
		Total Automobiles		1,464,236
		Banks – 5.5%
	160,447	Bank of America Corporation		2,169,243
	44,963	Citigroup Inc.		1,877,205
	12,743	Comerica Incorporated		482,577
	12,783	Fifth Third Bancorp.		213,348
	49,105	Huntington BancShares Inc.		468,462
	53,958	JP Morgan Chase & Co.		3,195,393
	33,673	Regions Financial Corporation		264,333
	33,569	U.S. Bancorp		1,362,566
	58,722	Wells Fargo & Company, (2)		2,839,796
		Total Banks		12,872,923
		Beverages – 2.3%
	58,122	Coca-Cola Company		2,696,280
	24,852	PepsiCo, Inc.		2,546,833
		Total Beverages		5,243,113
		Biotechnology – 3.3%
	23,042	AbbVie Inc.		1,316,159
	12,002	Amgen Inc.		1,799,460
	18,529	Celgene Corporation, (3)		1,854,568
	29,010	Gilead Sciences, Inc., (2)		2,664,859
		Total Biotechnology		7,635,046
		Capital Markets – 1.5%
	39,672	Charles Schwab Corporation		1,111,609
	16,013	Federated Investors Inc.		461,975
	7,670	Goldman Sachs Group, Inc.		1,204,037
	30,033	Morgan Stanley		751,125
		Total Capital Markets		3,528,746

Nuveen Investments 1

SPXX	Nuveen S&P 500 Dynamic Overwrite Fund
	Portfolio of Investments (continued)	March 31, 2016 (Unaudited)

Shares		Description (1)	Value
		Chemicals – 1.9%
	3,540	Chemours Company	$	24,780
	16,000	Dow Chemical Company		813,760
	14,703	E.I. Du Pont de Nemours and Company		930,994
	8,790	Eastman Chemical Company		634,902
	10,640	Monsanto Company		933,554
	11,826	Olin Corporation		205,418
	7,820	PPG Industries, Inc.		871,852
		Total Chemicals		4,415,260
		Commercial Services & Supplies – 0.3%
	9,103	Deluxe Corporation		568,846
		Communications Equipment – 1.2%
	73,511	Cisco Systems, Inc.		2,092,858
	9,742	Motorola Solutions Inc.		737,469
		Total Communications Equipment		2,830,327
		Consumer Finance – 0.4%
	15,373	American Express Company		943,902
		Containers & Packaging – 0.2%
	5,330	Avery Dennison Corporation		384,346
		Distributors – 0.0%
	100	LKQ Corporation, (3)		3,193
		Diversified Consumer Services – 0.0%
	3,600	Sothebys Holdings Inc.		96,228
		Diversified Financial Services – 2.2%
	27,775	Berkshire Hathaway Inc., Class B, (2), (3)		3,940,717
	5,681	CME Group, Inc.		545,660
	2,724	Intercontinental Exchange, Inc.		640,521
		Total Diversified Financial Services		5,126,898
		Diversified Telecommunication Services – 2.7%
	75,456	AT&T Inc.		2,955,612
	52,803	Frontier Communications Corporation		295,169
	55,000	Verizon Communications Inc., (2)		2,974,400
		Total Diversified Telecommunication Services		6,225,181
		Electric Utilities – 1.3%
	20,970	Duke Energy Corporation		1,691,860
	29,051	Westar Energy Inc.		1,441,220
		Total Electric Utilities		3,133,080
		Electrical Equipment – 0.7%
	6,500	Eaton Corporation PLC		406,640
	10,000	Emerson Electric Company		543,800
	6,854	Rockwell Automation, Inc.		779,643
		Total Electrical Equipment		1,730,083
		Electronic Equipment, Instruments & Components – 0.3%
	35,466	Corning Incorporated		740,885
		Energy Equipment & Services – 0.9%
	5,863	Baker Hughes Incorporated		256,975
	11,506	Halliburton Company		410,994
	4,900	National-Oilwell Varco Inc.		152,390
	18,006	Schlumberger Limited		1,327,943
		Total Energy Equipment & Services		2,148,302

2 Nuveen Investments

Shares		Description (1)	Value
		Food & Staples Retailing – 2.4%
	700	Casey’s General Stores, Inc.	$	79,324
	18,974	CVS Health Corporation		1,968,173
	3,000	Sprouts Farmers Market Inc., (3)		87,120
	21,700	SUPERVALU INC.		124,992
	2,000	United Natural Foods Inc., (3)		80,600
	17,816	Walgreens Boots Alliance Inc.		1,500,820
	24,502	Wal-Mart Stores, Inc.		1,678,142
		Total Food & Staples Retailing		5,519,171
		Food Products – 0.6%
	13,960	Archer-Daniels-Midland Company		506,888
	17,628	ConAgra Foods, Inc.		786,561
	100	Hain Celestial Group Inc., (3)		4,091
	700	Post Holdings Inc., (3)		48,139
	1,600	WhiteWave Foods Company, (3)		65,024
		Total Food Products		1,410,703
		Gas Utilities – 0.3%
	9,045	AGL Resources Inc.		589,191
		Health Care Equipment & Supplies – 1.8%
	27,082	Abbott Laboratories		1,132,840
	48,053	Boston Scientific Corporation, (3)		903,877
	30,198	Medtronic, PLC		2,264,850
		Total Health Care Equipment & Supplies		4,301,567
		Health Care Providers & Services – 2.9%
	9,358	Aetna Inc.		1,051,371
	4,648	Anthem Inc.		646,026
	16,284	Express Scripts Holding Company, (3)		1,118,548
	2,896	Humana Inc.		529,823
	8,074	Laboratory Corporation of America Holdings, (3)		945,708
	4,815	McKesson HBOC Inc.		757,159
	13,804	UnitedHealth Group Incorporated, (2)		1,779,336
		Total Health Care Providers & Services		6,827,971
		Hotels, Restaurants & Leisure – 2.0%
	6,278	Dominos Pizza Inc.		827,817
	15,000	McDonald’s Corporation		1,885,200
	32,208	Starbucks Corporation		1,922,818
		Total Hotels, Restaurants & Leisure		4,635,835
		Household Durables – 1.1%
	21,184	Lennar Corporation, Class A, (2)		1,024,458
	16,964	Newell Rubbermaid Inc.		751,336
	4,241	Whirlpool Corporation		764,822
		Total Household Durables		2,540,616
		Household Products – 2.2%
	17,234	Colgate-Palmolive Company		1,217,582
	9,737	Kimberly-Clark Corporation		1,309,724
	31,000	Procter & Gamble Company, (2)		2,551,610
		Total Household Products		5,078,916
		Industrial Conglomerates – 2.8%
	13,841	3M Co.		2,306,326
	135,400	General Electric Company		4,304,366
		Total Industrial Conglomerates		6,610,692

Nuveen Investments 3

SPXX	Nuveen S&P 500 Dynamic Overwrite Fund
	Portfolio of Investments (continued)	March 31, 2016 (Unaudited)

Shares		Description (1)	Value
		Insurance – 3.3%
	100	Alleghany Corporation, Term Loan, (3)	$	49,620
	19,900	American International Group, Inc.		1,075,595
	16,090	Arthur J. Gallagher & Co.		715,683
	100	Brown & Brown Inc.		3,580
	2,700	First American Corporation		102,897
	17,655	FNF Group		598,505
	52,930	Genworth Financial Inc., Class A, (3)		144,499
	17,377	Marsh & McLennan Companies, Inc.		1,056,348
	15,000	MetLife, Inc.		659,100
	10,189	Prudential Financial, Inc.		735,850
	1,700	Reinsurance Group of America Inc.		163,625
	100	RenaisasnceRE Holdings, Limited		11,983
	18,469	Torchmark Corporation		1,000,281
	11,626	Travelers Companies, Inc.		1,356,870
	100	WR Berkley Corporation		5,620
		Total Insurance		7,680,056
		Internet & Catalog Retail – 2.1%
	5,300	Amazon.com, Inc., (3)		3,146,292
	8,000	Netflix Inc., (3)		817,840
	790	Priceline Group, Inc. (The), (3)		1,018,278
		Total Internet & Catalog Retail		4,982,410
		Internet Software & Services – 5.2%
	10,011	Akamai Technologies, Inc., (3)		556,311
	4,120	Alphabet Inc., Class A, (3)		3,143,148
	4,327	Alphabet Inc., Class C, (3)		3,223,399
	30,000	eBay Inc., (3)		715,800
	34,000	Facebook Inc., Class A, (3)		3,879,400
	7,424	VeriSign, Inc., (3)		657,321
		Total Internet Software & Services		12,175,379
		IT Services – 3.5%
	17,164	Fidelity National Information Services		1,086,653
	12,300	International Business Machines Corporation, (2)		1,862,835
	20,318	MasterCard, Inc.		1,920,051
	20,000	PayPal Holdings, Inc., (3)		772,000
	34,024	Visa Inc., Class A		2,602,156
		Total IT Services		8,243,695
		Life Sciences Tools & Services – 0.7%
	2,883	Bio-Techne Corporation		272,501
	9,477	Thermo Fisher Scientific, Inc.		1,341,848
		Total Life Sciences Tools & Services		1,614,349
		Machinery – 1.8%
	12,391	Caterpillar Inc.		948,407
	3,049	Cummins Inc.		335,207
	10,446	Deere & Company		804,238
	9,843	Illinois Tool Works, Inc., (2)		1,008,317
	4,451	Pentair Limited		241,510
	3,300	Snap-on Incorporated		518,067
	3,000	Stanley Black & Decker Inc.		315,630
		Total Machinery		4,171,376
		Media – 2.9%
	12,544	CBS Corporation, Class B		691,049
	44,745	Comcast Corporation, Class A, (2)		2,733,025
	4,063	Gannett Company, Inc.		61,514
	24,435	Regal Entertainment Group, Class A		516,556

4 Nuveen Investments

Shares		Description (1)	Value
		Media (continued)
	8,126	TEGNA Inc.	$	190,636
	25,000	Walt Disney Company		2,482,750
		Total Media		6,675,530
		Metals & Mining – 0.2%
	38,558	Freeport-McMoRan, Inc.		398,690
	3,237	Southern Copper Corporation		89,697
		Total Metals & Mining		488,387
		Multiline Retail – 0.8%
	100	Big Lots, Inc.		4,529
	9,600	J.C. Penney Company, Inc.		106,176
	7,375	Nordstrom, Inc.		421,924
	16,408	Target Corporation		1,350,050
		Total Multiline Retail		1,882,679
		Multi-Utilities – 1.8%
	14,444	Alliant Energy Corporation		1,072,900
	20,000	CenterPoint Energy, Inc., (2)		418,400
	13,676	Consolidated Edison, Inc.		1,047,855
	22,250	Dominion Resources, Inc.		1,671,420
		Total Multi-Utilities		4,210,575
		Oil, Gas & Consumable Fuels – 5.8%
	21,799	California Resources Corporation		22,453
	27,329	Chevron Corporation, (2)		2,607,187
	20,462	ConocoPhillips		824,005
	11,317	CONSOL Energy Inc.		127,769
	2,100	Energen Corporation		76,839
	10,972	EOG Resources, Inc.		796,348
	55,300	Exxon Mobil Corporation, (2)		4,622,527
	1,900	Gulfport Energy Corporation, (3)		53,846
	8,000	Hess Corporation		421,200
	41,700	Marathon Oil Corporation		464,538
	12,072	Marathon Petroleum Corporation		448,837
	16,016	Occidental Petroleum Corporation		1,095,975
	10,602	ONEOK, Inc.		316,576
	9,273	Phillips 66		802,949
	3,800	QEP Resources Inc.		53,618
	1,900	SM Energy Company		35,606
	11,156	Valero Energy Corporation		715,546
	11,500	WPX Energy Inc., (3)		80,385
		Total Oil, Gas & Consumable Fuels		13,566,204
		Personal Products – 0.1%
	43,827	Avon Products, Inc.		210,808
		Pharmaceuticals – 5.7%
	6,000	Allergan PLC, (3)		1,608,180
	26,890	Bristol-Myers Squibb Company		1,717,733
	16,000	Eli Lilly and Company		1,152,160
	2,000	Jazz Pharmaceuticals, Inc., (3)		261,100
	34,730	Johnson & Johnson, (2)		3,757,786
	35,863	Merck & Co. Inc.		1,897,510
	10,840	Mylan NV, (3)		502,434
	80,494	Pfizer Inc.		2,385,842
		Total Pharmaceuticals		13,282,745
		Real Estate Investment Trust – 2.0%
	48,257	Brandywine Realty Trust		677,046
	12,111	Care Capital Properties, Inc.		325,059

Nuveen Investments 5

SPXX	Nuveen S&P 500 Dynamic Overwrite Fund
	Portfolio of Investments (continued)	March 31, 2016 (Unaudited)

Shares		Description (1)	Value
		Real Estate Investment Trust (continued)
	43,377	CubeSmart	$	1,444,454
	25,042	Hospitality Properties Trust		665,116
	20,277	Omega Healthcare Investors Inc.		715,778
	11,600	Ventas Inc.		730,336
		Total Real Estate Investment Trust		4,557,789
		Real Estate Management & Development – 0.2%
	900	Jones Lang LaSalle Inc.		105,588
	10,994	The RMR Group Inc., (3)		274,960
		Total Real Estate Management & Development		380,548
		Road & Rail – 0.6%
	16,045	Union Pacific Corporation, (2)		1,276,380
		Semiconductors & Semiconductor Equipment – 3.2%
	14,590	Analog Devices, Inc.		863,582
	62,815	Intel Corporation		2,032,065
	12,219	Microchip Technology Incorporated		588,956
	40,013	Micron Technology, Inc., (3)		418,936
	19,215	NVIDIA Corporation		684,630
	27,896	QUALCOMM, Inc.		1,426,601
	25,284	Texas Instruments Incorporated		1,451,807
		Total Semiconductors & Semiconductor Equipment		7,466,577
		Software – 4.1%
	11,786	Autodesk, Inc., (3)		687,242
	8,353	CDK Global Inc.		388,832
	116,985	Microsoft Corporation, (2)		6,461,082
	49,970	Oracle Corporation		2,044,273
		Total Software		9,581,429
		Specialty Retail – 3.5%
	100	Aaron Rents Inc.		2,510
	13,107	Best Buy Co., Inc.		425,190
	1,700	Dick’s Sporting Goods Inc.		79,475
	24,869	Home Depot, Inc., (2)		3,318,270
	9,369	L Brands Inc.		822,692
	27,903	Lowe’s Companies, Inc.		2,113,652
	6,300	Office Depot, Inc., (3)		44,730
	7,525	Tiffany & Co.		552,185
	10,968	TJX Companies, Inc.		859,343
		Total Specialty Retail		8,218,047
		Technology Hardware, Storage & Peripherals – 4.6%
	76,608	Apple, Inc.		8,349,506
	40,436	EMC Corporation		1,077,619
	43,381	Hewlett Packard Enterprise Co		769,145
	46,853	HP Inc.		577,229
		Total Technology Hardware, Storage & Peripherals		10,773,499
		Textiles, Apparel & Luxury Goods – 1.0%
	100	Deckers Outdoor Corporation, (3)		5,990
	2,700	Fossil Group Inc., (3)		119,934
	2,100	Kate Spade & Company, (3)		53,592
	20,000	Nike, Inc., Class B		1,229,400
	2,200	Skechers USA Inc., (3)		66,990
	5,300	Under Armour, Inc., (3)		449,599
	7,352	VF Corporation, (2)		476,116
		Total Textiles, Apparel & Luxury Goods		2,401,621

6 Nuveen Investments

Shares		Description (1)					Value
		Tobacco – 2.2%
	26,349	Altria Group, Inc.					$	1,651,028
	23,490	Philip Morris International, Inc.						2,304,604
	23,574	Reynolds American Inc.						1,186,008
		Total Tobacco						5,141,640
		Trading Companies & Distributors – 0.3%
	3,313	W.W. Grainger, Inc.						773,354
		Total Long-Term Investments ($156,886,493)						235,170,324
Principal Amount (000)		Description (1)	Coupon		Maturity		Value
		SHORT-TERM INVESTMENTS – 0.4%
		REPURCHASE AGREEMENTS – 0.4%
$	797	Repurchase Agreement with Fixed Income Clearing Corporation, dated 3/31/16, repurchase price $797,170, collateralized by $775,000 U.S. Treasury Bonds, 2.875%, due 8/15/45, value $814,719		0.030%		4/01/16	$	797,169
		Total Short-Term Investments (cost $797,169)						797,169
		Total Investments (cost $157,683,662) – 101.1%						235,967,493
		Other Assets Less Liabilities – (1.1)% (4)						(2,460,036	)
		Net Assets – 100%					$	233,507,457

Investments in Derivatives as of March 31, 2016

Call Options Purchased outstanding:

Number of Contracts		Description	Notional Amount (5)		Expiration Date		Strike Price		Value
	100	CBOE Volatility Index®	$	250,000		4/20/16	$	25	$	1,750
	100	Total Options Purchased (premiums paid $4,504)	$	250,000					$	1,750

Call Options Written outstanding:

Number of Contracts			Description	Notional Amount (5)			Expiration Date		Strike Price		Value
	(100	)	CBOE Volatility Index®	$	(200,000	)		4/20/16	$	20	$	(4,250	)
	(16	)	NASDAQ 100® Index		(7,120,000	)		4/15/16		4,450		(110,480	)
	(11	)	NASDAQ 100® Index		(4,867,500	)		4/15/16		4,425		(95,920	)
	(55	)	Russell 2000® Index		(5,912,500	)		4/15/16		1,075		(226,600	)
	(400	)	S&P 500® Index		(82,000,000	)		4/15/16		2,050		(944,000	)
	(121	)	S&P 500® Index		(25,107,500	)		4/15/16		2,075		(122,210	)
	(23	)	S&P 500® Index		(4,669,000	)		4/15/16		2,030		(86,825	)
	(60	)	S&P 500® Index		(12,600,000	)		5/20/16		2,100		(93,300	)
	(786	)	Total Options Written (premiums received $1,385,499)	$	(142,476,500	)					$	(1,683,585	)

Nuveen Investments 7

SPXX	Nuveen S&P 500 Dynamic Overwrite Fund
	Portfolio of Investments (continued)	March 31, 2016 (Unaudited)

Fair Value Measurements

Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.

Level 1 –	Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2 –	Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).
Level 3 –	Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).

The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:

	Level 1			Level 2		Level 3		Total
Long-term Investments:
Common Stocks	$	235,170,324		$	—	$	—	$	235,170,324
Short-Term Investments:
Repurchase Agreements		—			797,169		—		797,169
Investments in Derivatives:
Options Purchased		1,750			—		—		1,750
Options Written		(1,683,585	)		—		—		(1,683,585	)
Total	$	233,488,489		$	797,169	$	—	$	234,285,658

Income Tax Information

The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recording income, timing differences in recognizing certain gains and losses on investment transactions and the recognition of unrealized gain or loss for tax (mart-to-market) on option contracts. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset value of the Fund.

As of March 31, 2016, the cost of investments (excluding investments in derivatives) was $157,671,180.

Gross unrealized appreciation and gross unrealized depreciation of investments (excluding investments in derivatives) as of March 31, 2016, were as follows:

Gross unrealized:
Appreciation	$	89,851,561
Depreciation		(11,555,248	)
Net unrealized appreciation (depreciation) of investments	$	78,296,313

For Fund portfolio compliance purposes, the Fund’s industry classifications refer to any one or more of the industry sub-classifications used by one or more widely recognized market indexes or ratings group indexes, and/or as defined by Fund management. This definition may not apply for purposes of this report, which may combine industry sub-classifications into sectors for reporting ease.

(1) All percentages in the Portfolio of Investments are based on net assets.

(2) Investment, or portion of investment, has been pledged to collateralize the net payment obligations for investments in derivatives.

(3) Non-income producing: issuer has not declared a dividend within the past twelve months.

(4) Other assets less liabilities includes the unrealized appreciation (depreciation) of certain over-the-counter derivatives as well as the exchange-cleared and exchange-traded derivatives, when applicable. Other assets less liabilities also includes the value of options.

(5) For disclosure purposes, Notional Amount is calculated by multiplying the Number of Contracts by the Strike Price by 100.

8 Nuveen Investments

Item 2. Controls and Procedures.

a. The registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).

b. There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: EX-99 CERT Attached hereto.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant)	Nuveen S&P 500 Dynamic Overwrite Fund
By (Signature and Title)	/s/ Kevin J. McCarthy
	Kevin J. McCarthy
	Vice President and Secretary

Date: May 27, 2016

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)	/s/ Gifford R. Zimmerman
	Gifford R. Zimmerman
	Chief Administrative Officer (principal executive officer)
Date: May 27, 2016
By (Signature and Title)	/s/ Stephen D. Foy
	Stephen D. Foy
	Vice President and Controller (principal financial officer)
Date: May 27, 2016