AB Discovery Growth Fund, Inc. - (CHCLX) NPORT-P Ab Discovery Growth Fund, Inc. (Oct 2020 report)

AB Discovery Growth Fund, Inc.

Portfolio of Investments

October 31, 2020 (unaudited)

Company	Shares		U.S. $ Value
COMMON STOCKS – 96.8%
Information Technology – 31.4%
Electronic Equipment, Instruments & Components – 4.8%
Cognex Corp.		685,280	$	45,159,952
IPG Photonics Corp.(a)		126,103		23,450,114
Littelfuse, Inc.		185,263		36,670,958
Novanta, Inc.(a)		310,961		33,807,680
				139,088,704
IT Services – 2.3%
Jack Henry & Associates, Inc.		130,766		19,386,059
MongoDB, Inc.(a) (b)		204,610		46,747,247
				66,133,306
Semiconductors & Semiconductor Equipment – 9.9%
Cree, Inc.(a) (b)		457,456		29,094,202
Entegris, Inc.(b)		801,436		59,923,370
Inphi Corp.(a)		280,125		39,150,270
Lattice Semiconductor Corp.(a)		1,299,638		45,357,366
MKS Instruments, Inc.		385,110		41,742,073
Monolithic Power Systems, Inc.		95,050		30,377,980
Universal Display Corp.(b)		226,063		44,830,553
				290,475,814
Software – 14.4%
Anaplan, Inc.(a) (b)		733,511		40,599,834
ANSYS, Inc.(a) (b)		95,752		29,144,036
Avalara, Inc.(a)		363,759		54,218,279
Coupa Software, Inc.(a) (b)		75,992		20,343,058
Crowdstrike Holdings, Inc. - Class A(a) (b)		186,470		23,092,445
Datadog, Inc. - Class A(a) (b)		314,730		28,561,748
Fair Isaac Corp.(a)		111,315		43,574,257
HubSpot, Inc.(a) (b)		173,831		50,423,158
Manhattan Associates, Inc.(a)		509,003		43,519,756
RingCentral, Inc. - Class A(a) (b)		120,263		31,068,743
Smartsheet, Inc. - Class A(a)		611,881		30,502,268
Trade Desk, Inc. (The) - Class A(a) (b)		42,842		24,267,851
				419,315,433
				915,013,257
Health Care – 24.5%
Biotechnology – 10.7%
ADC Therapeutics SA(a)		366,985		10,528,800
Allogene Therapeutics, Inc.(a) (b)		426,832		14,478,141
Arena Pharmaceuticals, Inc.(a)		187,485		16,071,214
Ascendis Pharma A/S (Sponsored ADR)(a)		110,887		18,113,391
BeiGene Ltd. (Sponsored ADR)(a)		50,445		14,957,951
Biohaven Pharmaceutical Holding Co., Ltd.(a)		279,191		21,626,135
Blueprint Medicines Corp.(a)		249,127		25,480,710
Coherus Biosciences, Inc.(a) (b)		1,033,882		17,234,813

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Company	Shares		U.S. $ Value
Deciphera Pharmaceuticals, Inc.(a)		327,151	$	18,997,659
Legend Biotech Corp. ADR(a)		260,129		6,729,537
Madrigal Pharmaceuticals, Inc.(a) (b)		119,190		15,166,928
Neurocrine Biosciences, Inc.(a) (b)		246,366		24,308,933
PTC Therapeutics, Inc.(a)		351,706		18,355,536
Sarepta Therapeutics, Inc.(a) (b)		224,896		30,565,615
Turning Point Therapeutics, Inc. - Class I(a)		193,128		17,804,470
Ultragenyx Pharmaceutical, Inc.(a) (b)		253,133		25,439,867
Vir Biotechnology, Inc.(a) (b)		519,916		16,346,159
				312,205,859
Health Care Equipment & Supplies – 4.9%
Insulet Corp.(a) (b)		120,886		26,866,914
iRhythm Technologies, Inc.(a)		195,780		41,397,681
Penumbra, Inc.(a) (b)		154,271		40,269,359
Silk Road Medical, Inc.(a) (b)		563,120		34,125,072
				142,659,026
Health Care Providers & Services – 3.3%
Amedisys, Inc.(a)		173,473		44,929,507
Guardant Health, Inc.(a)		459,171		48,975,179
HealthEquity, Inc.(a)		57,144		2,942,344
				96,847,030
Health Care Technology – 0.6%
American Well Corp. - Class A(a) (b)		623,949		16,104,124
Life Sciences Tools & Services – 4.5%
10X Genomics, Inc.(a)		316,519		43,331,451
Berkeley Lights, Inc.(a)		119,169		8,648,094
ICON PLC(a)		173,966		31,366,070
Repligen Corp.(a)		296,117		49,324,209
				132,669,824
Pharmaceuticals – 0.5%
Revance Therapeutics, Inc.(a)		591,729		15,313,947
				715,799,810
Consumer Discretionary – 15.9%
Automobiles – 0.3%
Fisker, Inc.(c)		871,920		8,841,269
Distributors – 1.4%
Pool Corp.		121,100		42,364,413
Diversified Consumer Services – 2.2%
Chegg, Inc.(a) (b)		612,189		44,959,160
Strategic Education, Inc.		218,445		18,144,042
				63,103,202
Hotels, Restaurants & Leisure – 2.0%
Penn National Gaming, Inc.(a) (b)		520,370		28,089,572
Planet Fitness, Inc.(a)		501,873		29,746,013
				57,835,585

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Company	Shares		U.S. $ Value
Household Durables – 3.0%
NVR, Inc.(a)		7,759	$	30,672,026
Tempur Sealy International, Inc.(a)		339,468		30,212,652
TopBuild Corp.(a) (b)		164,710		25,235,219
				86,119,897
Internet & Direct Marketing Retail – 0.6%
Etsy, Inc.(a)		143,310		17,425,063
Specialty Retail – 6.4%
Dynatrace, Inc.(a) (b)		963,745		34,029,836
Five Below, Inc.(a) (b)		240,833		32,112,672
Floor & Decor Holdings, Inc. - Class A(a)		541,082		39,498,986
Lithia Motors, Inc. - Class A(b)		132,770		30,480,009
National Vision Holdings, Inc.(a) (b)		1,271,604		51,283,789
				187,405,292
				463,094,721
Industrials – 13.4%
Aerospace & Defense – 1.5%
Axon Enterprise, Inc.(a) (b)		449,101		44,416,089
Building Products – 1.4%
Trex Co., Inc.(a) (b)		603,370		41,958,350
Commercial Services & Supplies – 1.0%
Copart, Inc.(a)		275,912		30,449,648
Construction & Engineering – 0.8%
Jacobs Engineering Group, Inc.		248,154		23,574,630
Electrical Equipment – 2.0%
AMETEK, Inc.		258,486		25,383,325
Array Technologies, Inc.(a)		703,170		25,911,815
Plug Power, Inc.(a) (b)		520,940		7,293,160
				58,588,300
Machinery – 3.2%
IDEX Corp.		151,130		25,751,041
Ingersoll Rand, Inc.(a)		796,595		27,833,029
Nordson Corp.		200,433		38,769,755
				92,353,825
Road & Rail – 1.5%
Kansas City Southern		167,989		29,589,583
Knight-Swift Transportation Holdings, Inc.		344,059		13,070,801
				42,660,384
Trading Companies & Distributors – 2.0%
SiteOne Landscape Supply, Inc.(a) (b)		302,984		36,203,558
United Rentals, Inc.(a) (b)		123,720		22,058,039
				58,261,597
				392,262,823

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Company	Shares		U.S. $ Value
Financials – 7.1%
Banks – 1.2%
SVB Financial Group(a)		122,470	$	35,602,029
Capital Markets – 2.2%
Ares Management Corp. - Class A(b)		828,014		35,024,992
PJT Partners, Inc.(b)		413,423		27,972,200
				62,997,192
Insurance – 3.7%
GoHealth, Inc.(a) (b)		1,628,333		16,869,530
Goosehead Insurance, Inc. - Class A(b)		297,623		36,470,723
Inari Medical, Inc.(a)		386,470		25,584,314
Kinsale Capital Group, Inc.(b)		153,447		28,766,709
				107,691,276
				206,290,497
Consumer Staples – 3.5%
Food & Staples Retailing – 2.1%
Casey’s General Stores, Inc.(b)		139,583		23,529,506
Grocery Outlet Holding Corp.(a) (b)		831,686		36,610,818
				60,140,324
Food Products – 1.4%
Freshpet, Inc.(a)		360,550		41,282,975
				101,423,299
Materials – 1.0%
Chemicals – 1.0%
FMC Corp.		298,502		30,668,095
Total Common Stocks (cost $2,007,834,502)				2,824,552,502
INVESTMENT COMPANIES – 1.4%
Funds and Investment Trusts – 1.4%
iShares Russell 2000 Growth ETF(b) (d) (cost $33,377,190)		186,826		41,693,959
PREFERRED STOCKS – 0.1%
Consumer Discretionary – 0.1%
Household Durables – 0.1%
Honest Co., Inc. (The) - Series D 0.00% (a) (c) (e)		42,660		1,427,403
Honest Co., Inc. (The) - Series E 0.00% (a) (c) (e)		11,161		261,056
Total Preferred Stocks (cost $2,170,718)				1,688,459

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Company	Shares		U.S. $ Value
SHORT-TERM INVESTMENTS – 0.7%
Investment Companies – 0.7%
AB Fixed Income Shares, Inc. - AB Government Money Market Portfolio - Class AB, 0.03%(d) (f) (g) (cost $20,211,395)		20,211,395	$	20,211,395
Total Investments Before Security Lending Collateral for Securities Loaned – 99.0% (cost $2,063,593,805)				2,888,146,315
INVESTMENTS OF CASH COLLATERAL FOR SECURITIES LOANED – 1.7%
Investment Companies – 1.7%
AB Fixed Income Shares, Inc. - Government Money Market Portfolio - Class AB, 0.03%(d) (f) (g) (cost $47,755,140)		47,755,140		47,755,140
Total Investments – 100.7% (cost $2,111,348,945)(h)				2,935,901,455
Other assets less liabilities – (0.7)%				(19,105,345	)
Net Assets – 100.0%			$	2,916,796,110

(a) Non-income producing security.

(b) Represents entire or partial securities out on loan.

(c) Security in which significant unobservable inputs (Level 3) were used in determining fair value.

(d) To obtain a copy of the fund’s shareholder report, please go to the Securities and Exchange Commission’s website at www.sec.gov. Additionally, shareholder reports for AB funds can be obtained by calling AB at (800) 227-4618.

(e) Fair valued by the Adviser.

(f) Affiliated investments.

(g) The rate shown represents the 7-day yield as of period end.

(h) As of October 31, 2020, the cost basis of investment securities owned was substantially identical for both book and tax purposes. Gross unrealized appreciation of investments was $864,943,006 and gross unrealized depreciation of investments was $(40,390,496), resulting in net unrealized appreciation of $824,552,510.

Please note: The sector classifications presented herein are based on the Global Industry Classification Standard (GICS) which was developed by Morgan Stanley Capital International and Standard & Poor’s. The components are divided into sector, industry group, and industry sub-indices as classified by the GICS for each of the market capitalization indices in the broad market.

Glossary:

ADR – American Depositary Receipt

ETF – Exchange Traded Fund

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AB Discovery Growth Fund, Inc.

October 31, 2020 (unaudited)

In accordance with U.S. GAAP regarding fair value measurements, fair value is defined as the price that the Fund would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a framework for measuring fair value, and a three-level hierarchy for fair value measurements based upon the transparency of inputs to the valuation of an asset or liability (including those valued based on their market values). Inputs may be observable or unobservable and refer broadly to the assumptions that market participants would use in pricing the asset or liability. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Fund. Unobservable inputs reflect the Fund’s own assumptions about the assumptions that market participants would use in pricing the asset or liability based on the best information available in the circumstances. Each investment is assigned a level based upon the observability of the inputs which are significant to the overall valuation. The three-tier hierarchy of inputs is summarized below.

• Level 1 - quoted prices in active markets for identical investments

• Level 2 - other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 - significant unobservable inputs (including the Fund’s own assumptions in determining the fair value of investments)

Where readily available market prices or relevant bid prices are not available for certain equity investments, such investments may be valued based on similar publicly traded investments, movements in relevant indices since last available prices or based upon underlying company fundamentals and comparable company data (such as multiples to earnings or other multiples to equity). Where an investment is valued using an observable input, by pricing vendors, such as another publicly traded security, the investment will be classified as Level 2. If management determines that an adjustment is appropriate based on restrictions on resale, illiquidity or uncertainty, and such adjustment is a significant component of the valuation, the investment will be classified as Level 3. An investment will also be classified as Level 3 where management uses company fundamentals and other significant inputs to determine the valuation.

The following table summarizes the valuation of the Fund’s investments by the above fair value hierarchy levels as of October 31, 2020:

Investments in Securities:	Level 1		Level 2		Level 3		Total
Assets:
Common Stocks(a)	$	2,815,711,233	$	—	$	8,841,269	$	2,824,552,502
Investment Companies		41,693,959		—		—		41,693,959
Preferred Stocks		—		—		1,688,459		1,688,459
Short-Term Investments		20,211,395		—		—		20,211,395
Investments of Cash Collateral for Securities Loaned in Affiliated Money Market Fund		47,755,140		—		—		47,755,140
Total Investments in Securities		2,925,371,727		—		10,529,728		2,935,901,455
Other Financial Instruments(b)		—		—		—		—
Total	$	2,925,371,727	$	—	$	10,529,728	$	2,935,901,455

^(a)  See Portfolio of Investments for sector classifications.

^(b)  Other financial instruments are derivative instruments, such as futures, forwards and swaps, which are valued at the unrealized appreciation/(depreciation) on the instrument. Other financial instruments may also include swaps with upfront premiums, options written and swaptions written which are valued at market value.

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A summary of the Fund’s transactions in AB mutual funds for the three months ended October 31, 2020 is as follows:

Fund	Market Value 07/31/2020 (000)		Purchases at Cost (000)		Sales Proceeds (000)		Market Value 10/31/2020 (000)		Dividend Income (000)
Government Money Market Portfolio	$	46,768	$	175,357	$	201,914	$	20,211	$	5
Government Money Market Portfolio*		71,907		148,016		172,168		47,755		7
Total	$	118,675	$	323,373	$	374,082	$	67,966	$	12

* Investments of cash collateral for securities lending transactions.

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