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	13,541	116,800	SH		SOLE		116,800	0	0
AbbVie, Inc.	COM	00287Y109	36,293	322,200	SH		SOLE		322,200	0	0
Adams Natural Resources Fund, Inc.	COM	00548F105	35,426	2,186,774	SH		SOLE		2,186,774	0	0
Adobe Inc.	COM	00724F101	32,679	55,800	SH		SOLE		55,800	0	0
Air Products and Chemicals, Inc.	COM	009158106	4,574	15,900	SH		SOLE		15,900	0	0
Alphabet Inc. Class A	COM	02079K305	105,730	43,300	SH		SOLE		43,300	0	0
Amazon.com, Inc.	COM	023135106	109,053	31,700	SH		SOLE		31,700	0	0
AmerisourceBergen Corporation	COM	03073E105	17,815	155,600	SH		SOLE		155,600	0	0
Apple Inc.	COM	037833100	139,275	1,016,900	SH		SOLE		1,016,900	0	0
Arista Networks, Inc.	COM	040413106	20,036	55,300	SH		SOLE		55,300	0	0
AT&T Inc.	COM	00206R102	14,801	514,282	SH		SOLE		514,282	0	0
Bank of America Corp.	COM	060505104	47,349	1,148,400	SH		SOLE		1,148,400	0	0
Berkshire Hathaway Inc. Class B	COM	084670702	56,862	204,600	SH		SOLE		204,600	0	0
Boeing Company	COM	097023105	23,429	97,800	SH		SOLE		97,800	0	0
BorgWarner Inc.	COM	099724106	7,067	145,600	SH		SOLE		145,600	0	0
Capital One Financial Corporation	COM	14040H105	22,507	145,500	SH		SOLE		145,500	0	0
Carrier Global Corporation	COM	14448C104	25,923	533,400	SH		SOLE		533,400	0	0
Caterpillar Inc.	COM	149123101	27,595	126,800	SH		SOLE		126,800	0	0
CBRE Group, Inc. Class A	COM	12504L109	10,802	126,000	SH		SOLE		126,000	0	0
CDW Corp.	COM	12514G108	11,684	66,900	SH		SOLE		66,900	0	0
Centene Corporation	COM	15135B101	18,947	259,800	SH		SOLE		259,800	0	0
CenterPoint Energy, Inc.	COM	15189T107	15,874	647,400	SH		SOLE		647,400	0	0
Cisco Systems, Inc.	COM	17275R102	14,411	271,900	SH		SOLE		271,900	0	0
CMS Energy Corporation	COM	125896100	13,984	236,700	SH		SOLE		236,700	0	0
Coca-Cola Company	COM	191216100	12,164	224,800	SH		SOLE		224,800	0	0
Comcast Corporation Class A	COM	20030N101	34,075	597,600	SH		SOLE		597,600	0	0
ConocoPhillips	COM	20825C104	19,171	314,800	SH		SOLE		314,800	0	0
Constellation Brands, Inc. Class A	COM	21036P108	17,331	74,100	SH		SOLE		74,100	0	0
Costco Wholesale Corporation	COM	22160K105	25,244	63,800	SH		SOLE		63,800	0	0
CVS Health Corporation	COM	126650100	31,949	382,900	SH		SOLE		382,900	0	0
DuPont de Nemours, Inc.	COM	26614N102	13,756	177,700	SH		SOLE		177,700	0	0
Eli Lilly and Company	COM	532457108	30,297	132,000	SH		SOLE		132,000	0	0
Equinix, Inc.	COM	29444U700	20,627	25,700	SH		SOLE		25,700	0	0
Estee Lauder Companies Inc. Class A	COM	518439104	15,395	48,400	SH		SOLE		48,400	0	0
Facebook, Inc. Class A	COM	30303M102	71,385	205,300	SH		SOLE		205,300	0	0
Fair Isaac Corporation	COM	303250104	12,366	24,600	SH		SOLE		24,600	0	0
FedEx Corporation	COM	31428X106	26,701	89,500	SH		SOLE		89,500	0	0
Financial Select Sector SPDR Fund	COM	81369Y605	9,231	251,600	SH		SOLE		251,600	0	0
Fox Corporation Class A	COM	35137L105	9,097	245,000	SH		SOLE		245,000	0	0
General Electric Company	COM	369604103	25,272	1,877,600	SH		SOLE		1,877,600	0	0
General Motors Company	COM	37045V100	11,615	196,300	SH		SOLE		196,300	0	0
Health Care Select Sector SPDR Fund	COM	81369Y209	9,434	74,900	SH		SOLE		74,900	0	0
Hess Corporation	COM	42809H107	15,220	174,300	SH		SOLE		174,300	0	0
Hilton Worldwide Holdings, Inc.	COM	43300A203	13,799	114,400	SH		SOLE		114,400	0	0
Home Depot, Inc.	COM	437076102	8,706	27,300	SH		SOLE		27,300	0	0
Honeywell International Inc.	COM	438516106	21,935	100,000	SH		SOLE		100,000	0	0
Huntington Ingalls Industries, Inc.	COM	446413106	16,059	76,200	SH		SOLE		76,200	0	0
IDEXX Laboratories, Inc.	COM	45168D104	24,820	39,300	SH		SOLE		39,300	0	0
Intuit Inc.	COM	461202103	25,538	52,100	SH		SOLE		52,100	0	0
IQVIA Holdings Inc	COM	46266C105	21,809	90,000	SH		SOLE		90,000	0	0
Johnson & Johnson	COM	478160104	23,953	145,400	SH		SOLE		145,400	0	0
JPMorgan Chase & Co.	COM	46625H100	42,851	275,500	SH		SOLE		275,500	0	0
Lam Research Corporation	COM	512807108	27,720	42,600	SH		SOLE		42,600	0	0
Lamb Weston Holdings, Inc.	COM	513272104	12,026	149,100	SH		SOLE		149,100	0	0
Lowe's Companies, Inc.	COM	548661107	9,446	48,700	SH		SOLE		48,700	0	0
LyondellBasell Industries N.V.	COM	N53745100	11,809	114,800	SH		SOLE		114,800	0	0
Marathon Petroleum Corporation	COM	56585A102	7,565	125,200	SH		SOLE		125,200	0	0
Mastercard Incorporated Class A	COM	57636Q104	40,342	110,500	SH		SOLE		110,500	0	0
MetLife, Inc.	COM	59156R108	25,293	422,600	SH		SOLE		422,600	0	0
Microchip Technology Incorporated	COM	595017104	16,951	113,200	SH		SOLE		113,200	0	0
Micron Technology, Inc.	COM	595112103	23,480	276,300	SH		SOLE		276,300	0	0
Microsoft Corporation	COM	594918104	181,422	669,700	SH		SOLE		669,700	0	0
Moody's Corporation	COM	615369105	9,385	25,900	SH		SOLE		25,900	0	0
Morgan Stanley	COM	617446448	37,941	413,800	SH		SOLE		413,800	0	0
Netflix, Inc.	COM	64110L106	8,151	15,431	SH		SOLE		15,431	0	0
NIKE, Inc. Class B	COM	654106103	19,759	127,900	SH		SOLE		127,900	0	0
NVIDIA Corporation	COM	67066G104	46,486	58,100	SH		SOLE		58,100	0	0
Omnicom Group Inc	COM	681919106	10,879	136,000	SH		SOLE		136,000	0	0
Oracle Corporation	COM	68389X105	9,512	122,200	SH		SOLE		122,200	0	0
O'Reilly Automotive, Inc.	COM	67103H107	15,627	27,600	SH		SOLE		27,600	0	0
Parker-Hannifin Corporation	COM	701094104	22,573	73,500	SH		SOLE		73,500	0	0
PayPal Holdings Inc.	COM	70450Y103	30,489	104,600	SH		SOLE		104,600	0	0
PepsiCo, Inc.	COM	713448108	11,676	78,800	SH		SOLE		78,800	0	0
Philip Morris International Inc.	COM	718172109	30,694	309,700	SH		SOLE		309,700	0	0
Post Holdings, Inc.	COM	737446104	12,691	117,000	SH		SOLE		117,000	0	0
Procter & Gamble Company	COM	742718109	15,564	115,350	SH		SOLE		115,350	0	0
Prologis, Inc.	COM	74340W103	15,981	133,700	SH		SOLE		133,700	0	0
Public Service Enterprise Group Incorporated	COM	744573106	15,156	253,700	SH		SOLE		253,700	0	0
QUALCOMM Incorporated	COM	747525103	22,511	157,500	SH		SOLE		157,500	0	0
Quanta Services, Inc.	COM	74762E102	13,223	146,000	SH		SOLE		146,000	0	0
Sherwin-Williams Company	COM	824348106	16,510	60,600	SH		SOLE		60,600	0	0
Simon Property Group, Inc.	COM	828806109	11,991	91,900	SH		SOLE		91,900	0	0
Southern Company	COM	842587107	14,583	241,000	SH		SOLE		241,000	0	0
Steel Dynamics, Inc.	COM	858119100	12,361	207,400	SH		SOLE		207,400	0	0
T. Rowe Price Group	COM	74144T108	17,144	86,600	SH		SOLE		86,600	0	0
Target Corporation	COM	87612E106	27,437	113,500	SH		SOLE		113,500	0	0
Tesla Motors, Inc.	COM	88160R101	22,634	33,300	SH		SOLE		33,300	0	0
Thermo Fisher Scientific Inc.	COM	883556102	19,977	39,600	SH		SOLE		39,600	0	0
TJX Companies, Inc.	COM	872540109	25,208	373,900	SH		SOLE		373,900	0	0
Ulta Beauty, Inc.	COM	90384S303	18,015	52,100	SH		SOLE		52,100	0	0
Union Pacific Corporation	COM	907818108	11,370	51,700	SH		SOLE		51,700	0	0
UnitedHealth Group Incorporated	COM	91324P102	52,698	131,600	SH		SOLE		131,600	0	0
Universal Health Services, Inc. Class B	COM	913903100	22,082	150,800	SH		SOLE		150,800	0	0
V.F. Corporation	COM	918204108	15,374	187,400	SH		SOLE		187,400	0	0
Valero Energy Corporation	COM	91913Y100	7,113	91,100	SH		SOLE		91,100	0	0
Visa Inc. Class A	COM	92826C839	44,332	189,600	SH		SOLE		189,600	0	0
Walt Disney Company	COM	254687106	28,949	164,700	SH		SOLE		164,700	0	0
Wells Fargo & Company	COM	949746101	30,150	665,700	SH		SOLE		665,700	0	0