Adams Diversified Equity Fund (ADX) 13F-HR Quarterly holdings report by institutional manager

The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE

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COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4	COLUMN 5			COLUMN 6	COLUMN 7	COLUMN 8
			VALUE	SHRS OR	SH/	PUT/	INVESTMENT	OTHER	VOTING AUTHORITY
NAME OF ISSUER	TITLE OF CLASS	CUSIP	(x$1000)	PRN AMT	PRN	CALL	DISCRETION	MANAGER	SOLE	SHARED	NONE
AbbVie Inc.	COM	00287Y109	33,767	380,000	SH		SOLE	0	380,000	0	0
Adams Natural Resources Fund, Inc.	COM	00548F105	42,970	2,186,774	SH		SOLE	0	2,186,774	0	0
Adobe Systems Inc.	COM	00724F101	17,484	117,200	SH		SOLE	0	117,200	0	0
Aetna Inc.	COM	00817Y108	29,242	183,900	SH		SOLE	0	183,900	0	0
Albemarle Corp.	COM	012653101	10,400	76,300	SH		SOLE	0	76,300	0	0
Alexion Pharmaceuticals, Inc.	COM	015351109	10,297	73,400	SH		SOLE	0	73,400	0	0
Allergan plc	COM	G0177J108	21,949	107,096	SH		SOLE	0	107,096	0	0
Alphabet Inc. (Class A)	COM	02079K305	30,088	30,900	SH		SOLE	0	30,900	0	0
Alphabet Inc. (Class C)	COM	02079K107	28,387	29,597	SH		SOLE	0	29,597	0	0
Altria Group, Inc.	COM	02209S103	17,333	273,300	SH		SOLE	0	273,300	0	0
Amazon.com, Inc.	COM	023135106	42,396	44,100	SH		SOLE	0	44,100	0	0
American Express Co.	COM	025816109	34,221	378,300	SH		SOLE	0	378,300	0	0
American Tower Corp.	COM	03027X100	11,741	85,900	SH		SOLE	0	85,900	0	0
Amgen Inc.	COM	031162100	21,125	113,300	SH		SOLE	0	113,300	0	0
Andeavor	COM	03349M105	7,014	68,000	SH		SOLE	0	68,000	0	0
Apple Inc.	COM	037833100	74,055	480,500	SH		SOLE	0	480,500	0	0
AT&T Inc.	COM	00206R102	10,270	262,200	SH		SOLE	0	262,200	0	0
AvalonBay Communities, Inc.	COM	053484101	9,599	53,800	SH		SOLE	0	53,800	0	0
Bank of America Corp.	COM	060505104	34,756	1,371,600	SH		SOLE	0	1,371,600	0	0
Becton, Dickinson and Co.	COM	075887109	12,345	63,000	SH		SOLE	0	63,000	0	0
Berkshire Hathaway Inc. (Class B)	COM	084670702	12,081	65,900	SH		SOLE	0	65,900	0	0
BlackRock, Inc.	COM	09247X101	18,510	41,400	SH		SOLE	0	41,400	0	0
Broadcom Ltd.	COM	Y09827109	19,136	78,900	SH		SOLE	0	78,900	0	0
CenterPoint Energy, Inc.	COM	15189T107	11,713	401,000	SH		SOLE	0	401,000	0	0
Chubb Ltd.	COM	H1467J104	11,233	78,800	SH		SOLE	0	78,800	0	0
Cisco Systems, Inc.	COM	17275R102	9,144	271,900	SH		SOLE	0	271,900	0	0
Citigroup Inc.	COM	172967424	25,139	345,600	SH		SOLE	0	345,600	0	0
Cognizant Technology Solutions Corp.	COM	192446102	14,515	200,100	SH		SOLE	0	200,100	0	0
Comcast Corp.	COM	20030N101	38,826	1,009,000	SH		SOLE	0	1,009,000	0	0
Concho Resources Inc.	COM	20605P101	9,602	72,900	SH		SOLE	0	72,900	0	0
Costco Wholesale Corp.	COM	22160K105	7,426	45,200	SH		SOLE	0	45,200	0	0
Cummins Inc.	COM	231021106	22,869	136,100	SH		SOLE	0	136,100	0	0
CVS Health Corp.	COM	126650100	20,119	247,400	SH		SOLE	0	247,400	0	0
Delta Air Lines, Inc.	COM	247361702	13,608	282,200	SH		SOLE	0	282,200	0	0
Dollar General Corp.	COM	256677105	12,128	149,637	SH		SOLE	0	149,637	0	0
DowDuPont Inc.	COM	26078J100	14,421	208,300	SH		SOLE	0	208,300	0	0
DXC Technology Co.	COM	23355L106	12,281	143,000	SH		SOLE	0	143,000	0	0
Edison International	COM	281020107	10,055	130,300	SH		SOLE	0	130,300	0	0
Exxon Mobil Corp.	COM	30231G102	29,373	358,300	SH		SOLE	0	358,300	0	0
Facebook, Inc.	COM	30303M102	46,613	272,800	SH		SOLE	0	272,800	0	0
Fortive Corp.	COM	34959J108	19,800	279,700	SH		SOLE	0	279,700	0	0
General Electric Co.	COM	369604103	12,346	510,600	SH		SOLE	0	510,600	0	0
Halliburton Co.	COM	406216101	16,313	354,400	SH		SOLE	0	354,400	0	0
Home Depot, Inc.	COM	437076102	29,016	177,400	SH		SOLE	0	177,400	0	0
Honeywell International Inc.	COM	438516106	27,356	193,000	SH		SOLE	0	193,000	0	0
Industrial Select Sector SPDR Fund	COM	81369Y704	10,217	143,900	SH		SOLE	0	143,900	0	0
Intercontinental Exchange, Inc.	COM	45866F104	26,099	379,900	SH		SOLE	0	379,900	0	0
Johnson & Johnson	COM	478160104	31,449	241,900	SH		SOLE	0	241,900	0	0
JPMorgan Chase & Co.	COM	46625H100	17,020	178,200	SH		SOLE	0	178,200	0	0
Lam Research Corp.	COM	512807108	15,599	84,300	SH		SOLE	0	84,300	0	0
Lowe's Companies, Inc.	COM	548661107	23,854	298,400	SH		SOLE	0	298,400	0	0
LyondellBasell Industries N.V.	COM	N53745100	13,491	136,200	SH		SOLE	0	136,200	0	0
Magna International Inc.	COM	559222401	13,452	252,000	SH		SOLE	0	252,000	0	0
MasterCard, Inc.	COM	57636Q104	20,855	147,700	SH		SOLE	0	147,700	0	0
McKesson Corp.	COM	58155Q103	15,499	100,900	SH		SOLE	0	100,900	0	0
Microsoft Corp.	COM	594918104	62,333	836,800	SH		SOLE	0	836,800	0	0
NextEra Energy, Inc.	COM	65339F101	16,384	111,800	SH		SOLE	0	111,800	0	0
Oracle Corp.	COM	68389X105	5,908	122,200	SH		SOLE	0	122,200	0	0
Parker-Hannifin Corp.	COM	701094104	18,097	103,400	SH		SOLE	0	103,400	0	0
PepsiCo, Inc.	COM	713448108	25,673	230,400	SH		SOLE	0	230,400	0	0
Pfizer Inc.	COM	717081103	25,095	702,940	SH		SOLE	0	702,940	0	0
Philip Morris International Inc.	COM	718172109	32,781	295,300	SH		SOLE	0	295,300	0	0
Pioneer Natural Resources Co.	COM	723787107	8,528	57,800	SH		SOLE	0	57,800	0	0
Prologis, Inc.	COM	74340W103	22,313	351,600	SH		SOLE	0	351,600	0	0
Prudential Financial, Inc.	COM	744320102	13,758	129,400	SH		SOLE	0	129,400	0	0
Public Services Enterprise Group Inc.	COM	744573106	11,516	249,000	SH		SOLE	0	249,000	0	0
salesforce.com, inc.	COM	79466L302	16,928	181,200	SH		SOLE	0	181,200	0	0
SBA Communications Corp.	COM	78410G104	6,742	46,800	SH		SOLE	0	46,800	0	0
Signature Bank	COM	82669G104	11,882	92,800	SH		SOLE	0	92,800	0	0
Simon Property Group, Inc.	COM	828806109	12,398	77,000	SH		SOLE	0	77,000	0	0
Starbucks Corp.	COM	855244109	13,497	251,300	SH		SOLE	0	251,300	0	0
SunTrust Banks, Inc.	COM	867914103	22,599	378,100	SH		SOLE	0	378,100	0	0
Boeing Co.	COM	097023105	29,158	114,700	SH		SOLE	0	114,700	0	0
Coca-Cola Co.	COM	191216100	8,372	186,000	SH		SOLE	0	186,000	0	0
Priceline Group Inc.	COM	741503403	18,857	10,300	SH		SOLE	0	10,300	0	0
Procter & Gamble Co.	COM	742718109	11,996	131,850	SH		SOLE	0	131,850	0	0
Walt Disney Co.	COM	254687106	11,533	117,000	SH		SOLE	0	117,000	0	0
Thermo Fisher Scientific Inc.	COM	883556102	27,510	145,400	SH		SOLE	0	145,400	0	0
T-Mobile US, Inc.	COM	872590104	6,055	98,200	SH		SOLE	0	98,200	0	0
Union Pacific Corp.	COM	907818108	25,455	219,500	SH		SOLE	0	219,500	0	0
Verizon Communications Inc.	COM	92343V104	8,492	171,600	SH		SOLE	0	171,600	0	0
Visa Inc. (Class A)	COM	92826C839	33,887	322,000	SH		SOLE	0	322,000	0	0
Walmart Stores, Inc.	COM	931142103	22,848	292,400	SH		SOLE	0	292,400	0	0
Waters Corp.	COM	941848103	11,166	62,200	SH		SOLE	0	62,200	0	0
Wells Fargo & Co.	COM	949746101	28,579	518,200	SH		SOLE	0	518,200	0	0
Acadia Realty Trust	COM	004239109	798	27,900	SH		DFND	1	27,900	0	0
Advanced Energy Industries, Inc.	COM	007973100	800	9,900	SH		DFND	1	9,900	0	0
Aegion Corp.	COM	00770F104	903	38,800	SH		DFND	1	38,800	0	0
Akebia Therapeutics, Inc.	COM	00972D105	930	47,300	SH		DFND	1	47,300	0	0
ALLETE, Inc.	COM	018522300	1,105	14,300	SH		DFND	1	14,300	0	0
AMAG Pharmaceuticals Inc.	COM	00163U106	511	27,700	SH		DFND	1	27,700	0	0
American Outdoor Brands Corp.	COM	02874P103	659	43,200	SH		DFND	1	43,200	0	0
Amkor Technology, Inc.	COM	031652100	619	58,700	SH		DFND	1	58,700	0	0
AMN Healthcare Services, Inc.	COM	001744101	1,156	25,300	SH		DFND	1	25,300	0	0
Archrock Inc.	COM	03957W106	830	66,100	SH		DFND	1	66,100	0	0
Aspen Technology Inc.	COM	045327103	1,105	17,600	SH		DFND	1	17,600	0	0
Bankrate, Inc.	COM	06647F102	1,000	71,700	SH		DFND	1	71,700	0	0
Barnes Group Inc.	COM	067806109	1,324	18,800	SH		DFND	1	18,800	0	0
Belden Inc.	COM	077454106	1,087	13,500	SH		DFND	1	13,500	0	0
Benchmark Electronics Inc.	COM	08160H101	1,120	32,800	SH		DFND	1	32,800	0	0
Blucora, Inc.	COM	095229100	989	39,100	SH		DFND	1	39,100	0	0
Cardtronics PLC	COM	G1991C105	642	27,900	SH		DFND	1	27,900	0	0
Cathay General Bancorp	COM	149150104	1,089	27,100	SH		DFND	1	27,100	0	0
Central Pacific Financial Corp.	COM	154760409	1,072	33,300	SH		DFND	1	33,300	0	0
Chefs' Warehouse, Inc.	COM	163086101	816	42,300	SH		DFND	1	42,300	0	0
ChemoCentryx, Inc.	COM	16383L106	533	71,800	SH		DFND	1	71,800	0	0
Cirrus Logic, Inc.	COM	172755100	555	10,400	SH		DFND	1	10,400	0	0
CNO Financial Group, Inc.	COM	12621E103	1,092	46,800	SH		DFND	1	46,800	0	0
Cogent Communications	COM	19239V302	1,159	23,700	SH		DFND	1	23,700	0	0
Collectors Universe, Inc.	COM	19421R200	808	33,700	SH		DFND	1	33,700	0	0
Commvault Systems, Inc.	COM	204166102	973	16,000	SH		DFND	1	16,000	0	0
Continental Building Products	COM	211171103	967	37,200	SH		DFND	1	37,200	0	0
Costamare Inc.	COM	Y1771G102	842	136,300	SH		DFND	1	136,300	0	0
CSG Systems International, Inc.	COM	126349109	1,003	25,000	SH		DFND	1	25,000	0	0
CubeSmart	COM	229663109	872	33,600	SH		DFND	1	33,600	0	0
Customers Bancorp, Inc.	COM	23204G100	959	29,400	SH		DFND	1	29,400	0	0
CyrusOne Inc.	COM	23283R100	1,096	18,600	SH		DFND	1	18,600	0	0
Dana Incorporated	COM	235825205	1,158	41,400	SH		DFND	1	41,400	0	0
Darling Ingredients, Inc.	COM	237266101	759	43,300	SH		DFND	1	43,300	0	0
DCT Industrial Trust, Inc.	COM	233153204	1,118	19,300	SH		DFND	1	19,300	0	0
Delek US Holdings, Inc.	COM	24665A103	764	28,600	SH		DFND	1	28,600	0	0
Deluxe Corp.	COM	248019101	897	12,300	SH		DFND	1	12,300	0	0
Digital Realty Trust Inc.	COM	253868103	993	8,393	SH		DFND	1	8,393	0	0
EMCOR Group, Inc.	COM	29084Q100	888	12,800	SH		DFND	1	12,800	0	0
Emergent Biosolutions Inc.	COM	29089Q105	724	17,900	SH		DFND	1	17,900	0	0
Empire State Realty Trust, Inc.	COM	292104106	933	45,400	SH		DFND	1	45,400	0	0
Enanta Pharmaceuticals, Inc.	COM	29251M106	936	20,000	SH		DFND	1	20,000	0	0
Esterline Technologies Corp.	COM	297425100	974	10,800	SH		DFND	1	10,800	0	0
Ethan Allen Interiors Inc.	COM	297602104	849	26,200	SH		DFND	1	26,200	0	0
Exact Sciences Corp.	COM	30063P105	905	19,200	SH		DFND	1	19,200	0	0
ExlService Holdings, Inc.	COM	302081104	956	16,400	SH		DFND	1	16,400	0	0
Federal Agricultural Mortgage Corp.	COM	313148306	1,353	18,600	SH		DFND	1	18,600	0	0
Fidelity & Guaranty Life	COM	315785105	1,143	36,800	SH		DFND	1	36,800	0	0
Flagstar Bancorp, Inc.	COM	337930705	1,380	38,900	SH		DFND	1	38,900	0	0
Globus Medical, Inc.	COM	379577208	906	30,500	SH		DFND	1	30,500	0	0
Great Western Bancorp, Inc.	COM	391416104	1,061	25,700	SH		DFND	1	25,700	0	0
Halyard Health, Inc.	COM	40650V100	959	21,300	SH		DFND	1	21,300	0	0
Hancock Holding Co.	COM	410120109	1,168	24,100	SH		DFND	1	24,100	0	0
Harsco Corp.	COM	415864107	1,281	61,300	SH		DFND	1	61,300	0	0
HealthSouth Corp.	COM	421924309	844	18,200	SH		DFND	1	18,200	0	0
Highwoods Properties, Inc.	COM	431284108	943	18,100	SH		DFND	1	18,100	0	0
Horizon Pharma PLC	COM	G4617B105	606	47,800	SH		DFND	1	47,800	0	0
Independent Bank Corp.	COM	453838609	1,071	47,300	SH		DFND	1	47,300	0	0
Ingles Markets, Inc.	COM	457030104	784	30,500	SH		DFND	1	30,500	0	0
Inogen, Inc.	COM	45780L104	618	6,500	SH		DFND	1	6,500	0	0
Inter Parfums, Inc.	COM	458334109	796	19,300	SH		DFND	1	19,300	0	0
iShares Russell 2000	COM	464287655	237	1,600	SH		DFND	1	1,600	0	0
j2 Global, Inc.	COM	48123V102	983	13,300	SH		DFND	1	13,300	0	0
Kaiser Aluminum Corp.	COM	483007704	1,135	11,000	SH		DFND	1	11,000	0	0
KapStone Paper and Packaging Corp.	COM	48562P103	817	38,000	SH		DFND	1	38,000	0	0
KLX Inc.	COM	482539103	1,143	21,600	SH		DFND	1	21,600	0	0
Lannett Company, Inc.	COM	516012101	727	39,400	SH		DFND	1	39,400	0	0
Ligand Pharmaceuticals, Inc.	COM	53220K504	667	4,900	SH		DFND	1	4,900	0	0
Lithia Motors, Inc.	COM	536797103	1,167	9,700	SH		DFND	1	9,700	0	0
Marriott Vacations Worldwide Corp.	COM	57164Y107	1,133	9,100	SH		DFND	1	9,100	0	0
Masimo Corp.	COM	574795100	892	10,300	SH		DFND	1	10,300	0	0
Matador Resources Co.	COM	576485205	858	31,600	SH		DFND	1	31,600	0	0
Minerals Technologies Inc.	COM	603158106	714	10,100	SH		DFND	1	10,100	0	0
MKS Instruments, Inc.	COM	55306N104	774	8,200	SH		DFND	1	8,200	0	0
National Bank Holdings Corp.	COM	633707104	1,064	29,800	SH		DFND	1	29,800	0	0
National Health Investors, Inc.	COM	63633D104	866	11,200	SH		DFND	1	11,200	0	0
Nelnet, Inc.	COM	64031N108	944	18,700	SH		DFND	1	18,700	0	0
Newpark Resources, Inc.	COM	651718504	835	83,500	SH		DFND	1	83,500	0	0
NIC Inc.	COM	62914B100	878	51,200	SH		DFND	1	51,200	0	0
Oasis Petroleum Inc.	COM	674215108	880	96,500	SH		DFND	1	96,500	0	0
Old Second Bancorp, Inc.	COM	680277100	1,135	84,400	SH		DFND	1	84,400	0	0
OraSure Technologies, Inc.	COM	68554V108	974	43,300	SH		DFND	1	43,300	0	0
PAREXEL International Corp.	COM	699462107	958	10,876	SH		DFND	1	10,876	0	0
Party City Holdco Inc.	COM	702149105	938	69,200	SH		DFND	1	69,200	0	0
Pattern Energy Group Co.	COM	70338P100	923	38,300	SH		DFND	1	38,300	0	0
Paycom Software, Inc.	COM	70432V102	1,117	14,900	SH		DFND	1	14,900	0	0
Pebblebrook Hotel Trust	COM	70509V100	1,041	28,800	SH		DFND	1	28,800	0	0
Penn National Gaming, Inc.	COM	707569109	1,123	48,000	SH		DFND	1	48,000	0	0
PennyMac Mortgage Investment Trust	COM	70931T103	949	54,600	SH		DFND	1	54,600	0	0
Perry Ellis International, Inc.	COM	288853104	1,226	51,800	SH		DFND	1	51,800	0	0
Photronics, Inc.	COM	719405102	614	69,400	SH		DFND	1	69,400	0	0
Piper Jaffray Companies	COM	724078100	742	12,500	SH		DFND	1	12,500	0	0
PNM Resources, Inc.	COM	69349H107	999	24,800	SH		DFND	1	24,800	0	0
PolyOne Corp.	COM	73179P106	1,049	26,200	SH		DFND	1	26,200	0	0
Portland General Electric Co.	COM	736508847	958	21,000	SH		DFND	1	21,000	0	0
Progress Software Corp.	COM	743312100	1,034	27,100	SH		DFND	1	27,100	0	0
RadNet, Inc.	COM	750491102	1,057	91,500	SH		DFND	1	91,500	0	0
Repligen Corp.	COM	759916109	648	16,900	SH		DFND	1	16,900	0	0
Resources Connection, Inc.	COM	76122Q105	1,155	83,100	SH		DFND	1	83,100	0	0
RLJ Lodging Trust	COM	74965L101	781	35,500	SH		DFND	1	35,500	0	0
Ruth's Hospitality Group, Inc.	COM	783332109	1,016	48,500	SH		DFND	1	48,500	0	0
Sanmina Corp.	COM	801056102	1,141	30,700	SH		DFND	1	30,700	0	0
Schnitzer Steel Industries, Inc.	COM	806882106	935	33,200	SH		DFND	1	33,200	0	0
Sinclair Broadcast Group Inc	COM	829226109	737	23,000	SH		DFND	1	23,000	0	0
Sotheby's Class A	COM	835898107	950	20,600	SH		DFND	1	20,600	0	0
SPX Corp.	COM	784635104	1,209	41,200	SH		DFND	1	41,200	0	0
Stifel Financial Corp.	COM	860630102	1,010	18,900	SH		DFND	1	18,900	0	0
Sucampo Pharmaceuticals, Inc.	COM	864909106	765	64,800	SH		DFND	1	64,800	0	0
Supernus Pharmaceuticals, Inc.	COM	868459108	736	18,400	SH		DFND	1	18,400	0	0
Tech Data Corp.	COM	878237106	1,040	11,700	SH		DFND	1	11,700	0	0
Tenet Healthcare Corp.	COM	88033G407	800	48,700	SH		DFND	1	48,700	0	0
Tetra Tech, Inc.	COM	88162G103	1,178	25,300	SH		DFND	1	25,300	0	0
Texas Capital Bancshares, Inc.	COM	88224Q107	1,073	12,500	SH		DFND	1	12,500	0	0
The Greenbrier Companies Inc.	COM	393657101	1,194	24,800	SH		DFND	1	24,800	0	0
Time Inc.	COM	887228104	968	71,700	SH		DFND	1	71,700	0	0
Travelport Worldwide Ltd	COM	G9019D104	884	56,300	SH		DFND	1	56,300	0	0
Trinseo S.A.	COM	L9340P101	879	13,100	SH		DFND	1	13,100	0	0
TTM Technologies, Inc.	COM	87305R109	1,185	77,100	SH		DFND	1	77,100	0	0
Unit Corp.	COM	909218109	790	38,400	SH		DFND	1	38,400	0	0
United Community Bank, Inc.	COM	90984P303	956	33,500	SH		DFND	1	33,500	0	0
Univar, Inc.	COM	91336L107	960	33,200	SH		DFND	1	33,200	0	0
Walker & Dunlop, Inc.	COM	93148P102	1,204	23,000	SH		DFND	1	23,000	0	0
Webster Financial Corp.	COM	947890109	956	18,200	SH		DFND	1	18,200	0	0
West Corp.	COM	952355204	953	40,600	SH		DFND	1	40,600	0	0
Wintrust Financial Corp.	COM	97650W108	1,042	13,300	SH		DFND	1	13,300	0	0
YRC Worldwide Inc.	COM	984249607	1,230	89,100	SH		DFND	1	89,100	0	0
Zumiez Inc.	COM	989817101	1,424	78,700	SH		DFND	1	78,700	0	0