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
Abbott Laboratories	COM	002824100	17,755	225,000	SH		SOLE		225,000	0	0
AbbVie, Inc.	COM	00287Y109	24,587	322,700	SH		SOLE		322,700	0	0
Accenture plc Class A	COM	G1151C101	6,449	39,500	SH		SOLE		39,500	0	0
Adams Natural Resources Fund, Inc.	COM	00548F105	18,128	2,186,774	SH		SOLE		2,186,774	0	0
Adobe Inc.	COM	00724F101	21,099	66,300	SH		SOLE		66,300	0	0
Agilent Technologies, Inc.	COM	00846U101	12,684	177,100	SH		SOLE		177,100	0	0
Alphabet Inc. Class C	COM	02079K107	13,020	11,197	SH		SOLE		11,197	0	0
Alphabet Inc. Class A	COM	02079K305	47,756	41,100	SH		SOLE		41,100	0	0
Amazon.com, Inc.	COM	023135106	73,309	37,600	SH		SOLE		37,600	0	0
Ameren Corporation	COM	023608102	11,769	161,600	SH		SOLE		161,600	0	0
American Tower Corporation	COM	03027X100	16,026	73,600	SH		SOLE		73,600	0	0
Amphenol Corporation Class A	COM	032095101	2,864	39,300	SH		SOLE		39,300	0	0
Apple Inc.	COM	037833100	74,329	292,300	SH		SOLE		292,300	0	0
Applied Materials, Inc.	COM	038222105	10,195	222,500	SH		SOLE		222,500	0	0
AT&T Inc.	COM	00206R102	17,227	590,982	SH		SOLE		590,982	0	0
AvalonBay Communities, Inc.	COM	053484101	10,199	69,300	SH		SOLE		69,300	0	0
Bank of America Corp.	COM	060505104	23,950	1,128,100	SH		SOLE		1,128,100	0	0
Berkshire Hathaway Inc. Class B	COM	084670702	19,672	107,600	SH		SOLE		107,600	0	0
Bristol-Myers Squibb Company	COM	110122108	8,523	152,900	SH		SOLE		152,900	0	0
Caterpillar Inc.	COM	149123101	10,919	94,100	SH		SOLE		94,100	0	0
Chevron Corporation	COM	166764100	11,833	163,300	SH		SOLE		163,300	0	0
Chipotle Mexican Grill, Inc.	COM	169656105	9,881	15,100	SH		SOLE		15,100	0	0
Cintas Corporation	COM	172908105	5,370	31,000	SH		SOLE		31,000	0	0
Cisco Systems, Inc.	COM	17275R102	11,510	292,800	SH		SOLE		292,800	0	0
Citigroup Inc.	COM	172967424	1,499	35,600	SH		SOLE		35,600	0	0
Comcast Corporation Class A	COM	20030N101	22,973	668,200	SH		SOLE		668,200	0	0
ConocoPhillips	COM	20825C104	6,009	195,100	SH		SOLE		195,100	0	0
Consumer Staples Select Sector SPDR Fund	COM	81369Y308	4,717	86,600	SH		SOLE		86,600	0	0
Costco Wholesale Corporation	COM	22160K105	18,134	63,600	SH		SOLE		63,600	0	0
CVS Health Corporation	COM	126650100	17,615	296,900	SH		SOLE		296,900	0	0
Darden Restaurants, Inc.	COM	237194105	1,465	26,900	SH		SOLE		26,900	0	0
DuPont de Nemours, Inc.	COM	26614N102	1,879	55,100	SH		SOLE		55,100	0	0
Edwards Lifesciences Corporation	COM	28176E108	11,713	62,100	SH		SOLE		62,100	0	0
Equinix, Inc.	COM	29444U700	7,058	11,300	SH		SOLE		11,300	0	0
Exxon Mobil Corporation	COM	30231G102	6,288	165,600	SH		SOLE		165,600	0	0
Facebook, Inc. Class A	COM	30303M102	23,669	141,900	SH		SOLE		141,900	0	0
Fidelity National Information Services, Inc.	COM	31620M106	15,047	123,700	SH		SOLE		123,700	0	0
FirstEnergy Corp.	COM	337932107	10,482	261,600	SH		SOLE		261,600	0	0
General Electric Company	COM	369604103	11,196	1,410,022	SH		SOLE		1,410,022	0	0
Hartford Financial Services Group, Inc.	COM	416515104	1,607	45,600	SH		SOLE		45,600	0	0
HCA Healthcare Inc	COM	40412C101	1,554	17,300	SH		SOLE		17,300	0	0
Health Care Select Sector SPDR Fund	COM	81369Y209	2,312	26,100	SH		SOLE		26,100	0	0
Honeywell International Inc.	COM	438516106	27,159	203,000	SH		SOLE		203,000	0	0
Intel Corporation	COM	458140100	9,076	167,700	SH		SOLE		167,700	0	0
Intercontinental Exchange, Inc.	COM	45866F104	18,306	226,700	SH		SOLE		226,700	0	0
Johnson & Johnson	COM	478160104	26,292	200,500	SH		SOLE		200,500	0	0
JPMorgan Chase & Co.	COM	46625H100	32,834	364,700	SH		SOLE		364,700	0	0
Kansas City Southern	COM	485170302	17,614	138,500	SH		SOLE		138,500	0	0
L3Harris Technologies Inc.	COM	502431109	20,227	112,300	SH		SOLE		112,300	0	0
Lam Research Corporation	COM	512807108	13,224	55,100	SH		SOLE		55,100	0	0
Las Vegas Sands Corp.	COM	517834107	2,298	54,100	SH		SOLE		54,100	0	0
Lincoln Electric Holdings, Inc.	COM	533900106	7,714	111,800	SH		SOLE		111,800	0	0
Linde plc	COM	G5494J103	13,148	76,000	SH		SOLE		76,000	0	0
Lowe's Companies, Inc.	COM	548661107	13,148	152,800	SH		SOLE		152,800	0	0
LyondellBasell Industries N.V.	COM	N53745100	3,563	71,800	SH		SOLE		71,800	0	0
Magna International Inc.	COM	559222401	2,771	86,800	SH		SOLE		86,800	0	0
Mastercard Incorporated Class A	COM	57636Q104	23,286	96,400	SH		SOLE		96,400	0	0
Medtronic plc	COM	G5960L103	20,083	222,700	SH		SOLE		222,700	0	0
Merck & Co., Inc.	COM	58933Y105	22,259	289,300	SH		SOLE		289,300	0	0
MetLife, Inc.	COM	59156R108	12,849	420,300	SH		SOLE		420,300	0	0
Microsoft Corporation	COM	594918104	112,794	715,200	SH		SOLE		715,200	0	0
Mondelez International, Inc. Class A	COM	609207105	17,433	348,100	SH		SOLE		348,100	0	0
Netflix, Inc.	COM	64110L106	5,632	15,000	SH		SOLE		15,000	0	0
NextEra Energy, Inc.	COM	65339F101	21,728	90,300	SH		SOLE		90,300	0	0
NIKE, Inc. Class B	COM	654106103	19,692	238,000	SH		SOLE		238,000	0	0
Oracle Corporation	COM	68389X105	5,906	122,200	SH		SOLE		122,200	0	0
Parker-Hannifin Corporation	COM	701094104	11,572	89,200	SH		SOLE		89,200	0	0
PepsiCo, Inc.	COM	713448108	14,256	118,700	SH		SOLE		118,700	0	0
Philip Morris International Inc.	COM	718172109	19,225	263,500	SH		SOLE		263,500	0	0
Pioneer Natural Resources Company	COM	723787107	5,388	76,800	SH		SOLE		76,800	0	0
Prologis, Inc.	COM	74340W103	16,910	210,400	SH		SOLE		210,400	0	0
Ross Stores, Inc.	COM	778296103	3,853	44,300	SH		SOLE		44,300	0	0
S&P Global, Inc.	COM	78409V104	17,595	71,800	SH		SOLE		71,800	0	0
salesforce.com, inc.	COM	79466L302	19,408	134,800	SH		SOLE		134,800	0	0
Sherwin-Williams Company	COM	824348106	9,282	20,200	SH		SOLE		20,200	0	0
SPDR S&P 500 ETF Trust	COM	78462F103	22,837	88,600	SH		SOLE		88,600	0	0
Starbucks Corporation	COM	855244109	14,338	218,100	SH		SOLE		218,100	0	0
T. Rowe Price Group	COM	74144T108	16,347	167,400	SH		SOLE		167,400	0	0
Target Corporation	COM	87612E106	15,777	169,700	SH		SOLE		169,700	0	0
Technology Select Sector SPDR Fund	COM	81369Y803	16,074	200,000	SH		SOLE		200,000	0	0
Texas Instruments Incorporated	COM	882508104	16,399	164,100	SH		SOLE		164,100	0	0
Allstate Corporation	COM	020002101	8,338	90,900	SH		SOLE		90,900	0	0
Coca-Cola Company	COM	191216100	26,568	600,400	SH		SOLE		600,400	0	0
Procter & Gamble Company	COM	742718109	12,688	115,350	SH		SOLE		115,350	0	0
Walt Disney Company	COM	254687106	12,771	132,200	SH		SOLE		132,200	0	0
Thermo Fisher Scientific Inc.	COM	883556102	26,602	93,800	SH		SOLE		93,800	0	0
Travelers Companies, Inc.	COM	89417E109	11,892	119,700	SH		SOLE		119,700	0	0
Union Pacific Corporation	COM	907818108	20,916	148,300	SH		SOLE		148,300	0	0
United Rentals, Inc.	COM	911363109	2,521	24,500	SH		SOLE		24,500	0	0
UnitedHealth Group Incorporated	COM	91324P102	34,390	137,900	SH		SOLE		137,900	0	0
VeriSign, Inc.	COM	92343E102	12,282	68,200	SH		SOLE		68,200	0	0
Verizon Communications Inc.	COM	92343V104	4,664	86,800	SH		SOLE		86,800	0	0
Visa Inc. Class A	COM	92826C839	34,109	211,700	SH		SOLE		211,700	0	0
Walmart Inc.	COM	931142103	11,476	101,000	SH		SOLE		101,000	0	0
WEC Energy Group Inc.	COM	92939U106	13,757	156,100	SH		SOLE		156,100	0	0
Wells Fargo & Company	COM	949746101	12,559	437,600	SH		SOLE		437,600	0	0
Williams-Sonoma, Inc.	COM	969904101	876	20,600	SH		SOLE		20,600	0	0