T.

ROWE

PRICE

Equity

Index

500

Fund

September

30,

2024

(Unaudited)

1

Portfolio

of

Investments

‡

Shares

$

Value

(Cost

and

value

in

$000s)

‡

COMMON

STOCKS

 99.9%

COMMUNICATION

SERVICES

 8.8%

Diversified

Telecommunication

Services

 0.7%

AT&T 

4,969,085‌

109,320‌

Verizon

Communications 

2,905,871‌

130,503‌

239,823‌

Entertainment

 1.2%

Electronic

Arts 

165,069‌

23,677‌

Live

Nation

Entertainment (1)

108,244‌

11,852‌

Netflix (1)

296,396‌

210,225‌

Take-Two

Interactive

Software (1)

112,665‌

17,318‌

Walt

Disney 

1,251,798‌

120,410‌

Warner

Bros

Discovery (1)

1,537,530‌

12,685‌

396,167‌

Interactive

Media

&

Services

 6.2%

Alphabet,

Class

A 

4,048,458‌

671,437‌

Alphabet,

Class

C 

3,318,686‌

554,851‌

Match

Group (1)

174,054‌

6,586‌

Meta

Platforms,

Class

A 

1,509,686‌

864,205‌

2,097,079‌

Media

 0.5%

Charter

Communications,

Class

A (1)(2)

67,839‌

21,985‌

Comcast,

Class

A 

2,666,095‌

111,363‌

Fox,

Class

A 

156,362‌

6,619‌

Fox,

Class

B 

91,327‌

3,544‌

Interpublic

Group 

265,107‌

8,385‌

News,

Class

A 

265,874‌

7,080‌

News,

Class

B (2)

78,927‌

2,206‌

Omnicom

Group 

137,093‌

14,174‌

Paramount

Global,

Class

B 

411,030‌

4,365‌

179,721‌

Wireless

Telecommunication

Services

 0.2%

T-Mobile

U.S. 

337,922‌

69,734‌

69,734‌

Total

Communication

Services

2,982,524‌

CONSUMER

DISCRETIONARY

 10.1%

Automobile

Components

 0.1%

Aptiv (1)

181,490‌

13,069‌

BorgWarner 

153,002‌

5,553‌

18,622‌

T.

ROWE

PRICE

Equity

Index

500

Fund

2

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Automobiles

 1.7%

Ford

Motor 

2,684,367‌

28,347‌

General

Motors 

773,617‌

34,689‌

Tesla (1)

1,917,015‌

501,549‌

564,585‌

Broadline

Retail

 3.6%

Amazon.com (1)

6,456,009‌

1,202,948‌

eBay 

335,528‌

21,846‌

1,224,794‌

Distributors

 0.1%

Genuine

Parts 

97,118‌

13,565‌

LKQ 

185,242‌

7,395‌

Pool 

27,017‌

10,180‌

31,140‌

Hotels,

Restaurants

&

Leisure

 1.9%

Airbnb,

Class

A (1)

304,980‌

38,675‌

Booking

Holdings 

23,131‌

97,431‌

Caesars

Entertainment (1)

150,647‌

6,288‌

Carnival (1)

700,442‌

12,944‌

Chipotle

Mexican

Grill (1)

950,063‌

54,743‌

Darden

Restaurants 

83,343‌

13,679‌

Domino's

Pizza 

24,152‌

10,389‌

Expedia

Group (1)(2)

85,072‌

12,592‌

Hilton

Worldwide

Holdings 

169,632‌

39,100‌

Las

Vegas

Sands 

240,640‌

12,114‌

Marriott

International,

Class

A 

160,865‌

39,991‌

McDonald's 

495,262‌

150,812‌

MGM

Resorts

International (1)

155,474‌

6,077‌

Norwegian

Cruise

Line

Holdings (1)(2)

300,300‌

6,159‌

Royal

Caribbean

Cruises 

165,535‌

29,359‌

Starbucks 

784,404‌

76,472‌

Wynn

Resorts 

66,399‌

6,366‌

Yum!

Brands 

194,196‌

27,131‌

640,322‌

Household

Durables

 0.4%

DR

Horton 

202,023‌

38,540‌

Garmin 

108,093‌

19,028‌

Lennar,

Class

A 

166,250‌

31,169‌

Mohawk

Industries (1)

37,568‌

6,036‌

NVR (1)

2,112‌

20,722‌

T.

ROWE

PRICE

Equity

Index

500

Fund

3

Shares

$

Value

(Cost

and

value

in

$000s)

‡

PulteGroup 

142,365‌

20,434‌

135,929‌

Leisure

Products

 0.0%

Hasbro 

92,273‌

6,673‌

6,673‌

Specialty

Retail

 1.9%

AutoZone (1)

11,756‌

37,032‌

Best

Buy 

134,109‌

13,853‌

CarMax (1)

111,061‌

8,594‌

Home

Depot 

684,952‌

277,542‌

Lowe's 

393,247‌

106,511‌

O'Reilly

Automotive (1)

39,953‌

46,010‌

Ross

Stores 

229,550‌

34,549‌

TJX 

779,791‌

91,657‌

Tractor

Supply 

74,550‌

21,689‌

Ulta

Beauty (1)

32,596‌

12,684‌

650,121‌

Textiles,

Apparel

&

Luxury

Goods

 0.4%

Deckers

Outdoor (1)

106,998‌

17,061‌

Lululemon

Athletica (1)

80,248‌

21,775‌

NIKE,

Class

B 

828,478‌

73,238‌

Ralph

Lauren (2)

27,447‌

5,321‌

Tapestry 

158,497‌

7,446‌

124,841‌

Total

Consumer

Discretionary

3,397,027‌

CONSUMER

STAPLES

 5.8%

Beverages

 1.3%

Brown-Forman,

Class

B (2)

128,156‌

6,305‌

Coca-Cola 

2,678,678‌

192,490‌

Constellation

Brands,

Class

A 

107,670‌

27,745‌

Keurig

Dr

Pepper 

732,840‌

27,467‌

Molson

Coors

Beverage,

Class

B 

118,638‌

6,824‌

Monster

Beverage (1)

484,467‌

25,275‌

PepsiCo 

948,452‌

161,284‌

447,390‌

Consumer

Staples

Distribution

&

Retail

 1.9%

Costco

Wholesale 

306,236‌

271,484‌

Dollar

General 

153,379‌

12,971‌

Dollar

Tree (1)

137,555‌

9,673‌

Kroger 

463,750‌

26,573‌

Sysco 

337,795‌

26,368‌

T.

ROWE

PRICE

Equity

Index

500

Fund

4

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Target 

320,002‌

49,876‌

Walgreens

Boots

Alliance 

496,574‌

4,449‌

Walmart 

3,001,991‌

242,411‌

643,805‌

Food

Products

 0.7%

Archer-Daniels-Midland 

327,993‌

19,594‌

Bunge

Global 

97,343‌

9,407‌

Campbell

Soup (2)

138,933‌

6,797‌

Conagra

Brands 

330,923‌

10,762‌

General

Mills 

382,644‌

28,258‌

Hershey 

103,392‌

19,829‌

Hormel

Foods 

202,934‌

6,433‌

J

M

Smucker 

73,480‌

8,898‌

Kellanova 

184,791‌

14,915‌

Kraft

Heinz 

610,022‌

21,418‌

Lamb

Weston

Holdings 

100,362‌

6,497‌

McCormick 

174,032‌

14,323‌

Mondelez

International,

Class

A 

921,165‌

67,862‌

Tyson

Foods,

Class

A 

195,859‌

11,665‌

246,658‌

Household

Products

 1.2%

Church

&

Dwight 

169,213‌

17,720‌

Clorox 

85,886‌

13,992‌

Colgate-Palmolive 

563,211‌

58,467‌

Kimberly-Clark 

231,678‌

32,963‌

Procter

&

Gamble 

1,626,088‌

281,638‌

404,780‌

Personal

Care

Products

 0.1%

Estee

Lauder,

Class

A 

162,828‌

16,233‌

Kenvue 

1,316,917‌

30,460‌

46,693‌

Tobacco

 0.6%

Altria

Group 

1,176,173‌

60,032‌

Philip

Morris

International 

1,073,303‌

130,299‌

190,331‌

Total

Consumer

Staples

1,979,657‌

ENERGY

 3.3%

Energy

Equipment

&

Services

 0.2%

Baker

Hughes 

682,354‌

24,667‌

Halliburton 

620,345‌

18,021‌

T.

ROWE

PRICE

Equity

Index

500

Fund

5

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Schlumberger 

987,974‌

41,446‌

84,134‌

Oil,

Gas

&

Consumable

Fuels

 3.1%

APA 

252,876‌

6,186‌

Chevron 

1,174,496‌

172,968‌

ConocoPhillips 

801,194‌

84,350‌

Coterra

Energy 

504,397‌

12,080‌

Devon

Energy 

437,888‌

17,130‌

Diamondback

Energy 

128,655‌

22,180‌

EOG

Resources 

391,751‌

48,158‌

EQT 

415,741‌

15,233‌

Exxon

Mobil 

3,069,300‌

359,783‌

Hess 

192,697‌

26,168‌

Kinder

Morgan 

1,332,190‌

29,428‌

Marathon

Oil 

395,055‌

10,520‌

Marathon

Petroleum 

230,388‌

37,533‌

Occidental

Petroleum 

464,138‌

23,922‌

ONEOK 

403,249‌

36,748‌

Phillips

66 

288,128‌

37,875‌

Targa

Resources 

150,402‌

22,261‌

Valero

Energy 

220,316‌

29,749‌

Williams 

842,129‌

38,443‌

1,030,715‌

Total

Energy

1,114,849‌

FINANCIALS

 12.9%

Banks

 3.1%

Bank

of

America 

4,662,018‌

184,989‌

Citigroup 

1,321,229‌

82,709‌

Citizens

Financial

Group 

312,991‌

12,855‌

Fifth

Third

Bancorp 

475,357‌

20,364‌

Huntington

Bancshares 

1,003,023‌

14,744‌

JPMorgan

Chase 

1,965,684‌

414,484‌

KeyCorp 

654,537‌

10,964‌

M&T

Bank 

115,844‌

20,634‌

PNC

Financial

Services

Group 

273,903‌

50,631‌

Regions

Financial 

644,177‌

15,029‌

Truist

Financial 

924,824‌

39,555‌

U.S.

Bancorp 

1,079,410‌

49,361‌

Wells

Fargo 

2,349,729‌

132,736‌

1,049,055‌

Capital

Markets

 3.0%

Ameriprise

Financial 

67,529‌

31,726‌

T.

ROWE

PRICE

Equity

Index

500

Fund

6

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Bank

of

New

York

Mellon 

507,882‌

36,496‌

BlackRock 

96,069‌

91,218‌

Blackstone 

497,676‌

76,209‌

Cboe

Global

Markets 

73,121‌

14,980‌

Charles

Schwab 

1,030,113‌

66,762‌

CME

Group 

249,151‌

54,975‌

FactSet

Research

Systems 

26,312‌

12,100‌

Franklin

Resources (2)

216,167‌

4,356‌

Goldman

Sachs

Group 

217,956‌

107,912‌

Intercontinental

Exchange 

397,104‌

63,791‌

Invesco 

318,310‌

5,589‌

KKR 

466,124‌

60,866‌

MarketAxess

Holdings 

26,345‌

6,750‌

Moody's 

107,923‌

51,219‌

Morgan

Stanley 

859,464‌

89,591‌

MSCI 

54,081‌

31,525‌

Nasdaq 

286,714‌

20,933‌

Northern

Trust 

137,695‌

12,397‌

Raymond

James

Financial 

128,877‌

15,782‌

S&P

Global 

221,877‌

114,626‌

State

Street 

208,111‌

18,412‌

T.

Rowe

Price

Group (3)

152,452‌

16,607‌

1,004,822‌

Consumer

Finance

 0.5%

American

Express 

387,586‌

105,113‌

Capital

One

Financial 

265,411‌

39,740‌

Discover

Financial

Services 

172,454‌

24,194‌

Synchrony

Financial 

270,135‌

13,474‌

182,521‌

Financial

Services

 4.1%

Berkshire

Hathaway,

Class

B (1)

1,266,028‌

582,702‌

Corpay (1)

47,494‌

14,854‌

Fidelity

National

Information

Services 

375,236‌

31,426‌

Fiserv (1)

397,045‌

71,329‌

Global

Payments 

178,779‌

18,311‌

Jack

Henry

&

Associates 

51,137‌

9,028‌

Mastercard,

Class

A 

569,583‌

281,260‌

PayPal

Holdings (1)

704,590‌

54,979‌

Visa,

Class

A 

1,154,517‌

317,434‌

1,381,323‌

Insurance

 2.2%

Aflac 

346,922‌

38,786‌

T.

ROWE

PRICE

Equity

Index

500

Fund

7

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Allstate 

181,680‌

34,456‌

American

International

Group 

442,974‌

32,439‌

Aon,

Class

A 

150,436‌

52,049‌

Arch

Capital

Group (1)

261,637‌

29,272‌

Arthur

J

Gallagher 

151,087‌

42,511‌

Assurant 

37,020‌

7,362‌

Brown

&

Brown 

165,405‌

17,136‌

Chubb 

259,103‌

74,723‌

Cincinnati

Financial 

108,675‌

14,793‌

Erie

Indemnity,

Class

A 

17,238‌

9,305‌

Everest

Group 

30,055‌

11,776‌

Globe

Life 

59,262‌

6,276‌

Hartford

Financial

Services

Group 

204,946‌

24,104‌

Loews 

126,734‌

10,018‌

Marsh

&

McLennan 

341,286‌

76,138‌

MetLife 

404,679‌

33,378‌

Principal

Financial

Group 

147,473‌

12,668‌

Progressive 

405,893‌

102,999‌

Prudential

Financial 

245,472‌

29,727‌

Travelers 

156,884‌

36,730‌

W

R

Berkley 

211,609‌

12,005‌

Willis

Towers

Watson 

70,371‌

20,726‌

729,377‌

Total

Financials

4,347,098‌

HEALTH

CARE

 11.7%

Biotechnology

 1.9%

AbbVie 

1,220,000‌

240,926‌

Amgen 

371,857‌

119,816‌

Biogen (1)

102,300‌

19,830‌

Gilead

Sciences 

862,646‌

72,324‌

Incyte (1)

111,976‌

7,402‌

Moderna (1)

232,457‌

15,535‌

Regeneron

Pharmaceuticals (1)

73,480‌

77,245‌

Vertex

Pharmaceuticals (1)

178,768‌

83,141‌

636,219‌

Health

Care

Equipment

&

Supplies

 2.4%

Abbott

Laboratories 

1,201,166‌

136,945‌

Align

Technology (1)

49,337‌

12,547‌

Baxter

International 

351,424‌

13,344‌

Becton

Dickinson

&

Company 

199,873‌

48,189‌

Boston

Scientific (1)

1,018,449‌

85,346‌

Cooper (1)

136,231‌

15,032‌

T.

ROWE

PRICE

Equity

Index

500

Fund

8

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Dexcom (1)

278,655‌

18,681‌

Edwards

Lifesciences (1)

414,050‌

27,323‌

GE

HealthCare

Technologies 

317,948‌

29,840‌

Hologic (1)

163,459‌

13,315‌

IDEXX

Laboratories (1)

56,586‌

28,588‌

Insulet (1)

49,041‌

11,414‌

Intuitive

Surgical (1)

244,837‌

120,281‌

Medtronic 

884,737‌

79,653‌

ResMed 

102,658‌

25,061‌

Solventum (1)

96,228‌

6,709‌

STERIS 

67,515‌

16,375‌

Stryker 

236,962‌

85,605‌

Teleflex 

32,966‌

8,153‌

Zimmer

Biomet

Holdings 

141,905‌

15,319‌

797,720‌

Health

Care

Providers

&

Services

 2.5%

Cardinal

Health 

167,502‌

18,512‌

Cencora 

120,568‌

27,137‌

Centene (1)

361,521‌

27,215‌

Cigna

Group 

192,776‌

66,785‌

CVS

Health 

873,549‌

54,929‌

DaVita (1)

30,946‌

5,073‌

Elevance

Health 

159,979‌

83,189‌

HCA

Healthcare 

128,041‌

52,040‌

Henry

Schein (1)

90,336‌

6,586‌

Humana 

82,720‌

26,201‌

Labcorp

Holdings 

59,418‌

13,279‌

McKesson 

89,888‌

44,442‌

Molina

Healthcare (1)

40,391‌

13,917‌

Quest

Diagnostics 

78,112‌

12,127‌

UnitedHealth

Group 

638,652‌

373,407‌

Universal

Health

Services,

Class

B 

42,202‌

9,665‌

834,504‌

Life

Sciences

Tools

&

Services

 1.3%

Agilent

Technologies 

200,561‌

29,779‌

Bio-Techne 

110,620‌

8,842‌

Charles

River

Laboratories

International (1)

35,398‌

6,972‌

Danaher 

443,687‌

123,354‌

IQVIA

Holdings (1)

119,064‌

28,215‌

Mettler-Toledo

International (1)

14,792‌

22,183‌

Revvity 

85,432‌

10,914‌

Thermo

Fisher

Scientific 

263,766‌

163,158‌

Waters (1)

40,956‌

14,740‌

T.

ROWE

PRICE

Equity

Index

500

Fund

9

Shares

$

Value

(Cost

and

value

in

$000s)

‡

West

Pharmaceutical

Services 

51,020‌

15,314‌

423,471‌

Pharmaceuticals

 3.6%

Bristol-Myers

Squibb 

1,403,693‌

72,627‌

Catalent (1)

127,051‌

7,695‌

Eli

Lilly 

545,042‌

482,875‌

Johnson

&

Johnson 

1,662,814‌

269,476‌

Merck 

1,750,601‌

198,798‌

Pfizer 

3,927,645‌

113,666‌

Viatris 

831,144‌

9,650‌

Zoetis 

312,325‌

61,022‌

1,215,809‌

Total

Health

Care

3,907,723‌

INDUSTRIALS

&

BUSINESS

SERVICES

 8.8%

Aerospace

&

Defense

 2.0%

Axon

Enterprise (1)

49,620‌

19,828‌

Boeing (1)

404,566‌

61,510‌

General

Dynamics 

178,229‌

53,861‌

General

Electric 

748,585‌

141,168‌

Howmet

Aerospace 

282,088‌

28,279‌

Huntington

Ingalls

Industries 

27,961‌

7,392‌

L3Harris

Technologies 

132,121‌

31,428‌

Lockheed

Martin 

146,346‌

85,548‌

Northrop

Grumman 

94,717‌

50,017‌

RTX 

921,488‌

111,648‌

Textron 

127,760‌

11,317‌

TransDigm

Group 

38,945‌

55,580‌

657,576‌

Air

Freight

&

Logistics

 0.4%

CH

Robinson

Worldwide 

82,333‌

9,087‌

Expeditors

International

of

Washington 

98,933‌

13,000‌

FedEx 

156,550‌

42,844‌

United

Parcel

Service,

Class

B 

504,972‌

68,848‌

133,779‌

Building

Products

 0.6%

A.O.

Smith 

84,975‌

7,633‌

Allegion 

61,690‌

8,991‌

Builders

FirstSource (1)

79,721‌

15,455‌

Carrier

Global 

578,340‌

46,550‌

Johnson

Controls

International 

459,614‌

35,671‌

Masco 

148,988‌

12,506‌

T.

ROWE

PRICE

Equity

Index

500

Fund

10

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Trane

Technologies 

155,566‌

60,473‌

187,279‌

Commercial

Services

&

Supplies

 0.6%

Cintas 

236,038‌

48,595‌

Copart (1)

603,813‌

31,640‌

Republic

Services 

142,574‌

28,635‌

Rollins 

194,327‌

9,829‌

Veralto 

170,785‌

19,104‌

Waste

Management 

252,530‌

52,425‌

190,228‌

Construction

&

Engineering

 0.1%

Quanta

Services 

101,837‌

30,363‌

30,363‌

Electrical

Equipment

 0.8%

AMETEK 

160,880‌

27,625‌

Eaton 

274,675‌

91,038‌

Emerson

Electric 

394,360‌

43,131‌

GE

Vernova (1)

189,375‌

48,287‌

Generac

Holdings (1)

42,458‌

6,746‌

Hubbell 

37,145‌

15,911‌

Rockwell

Automation 

79,004‌

21,209‌

253,947‌

Ground

Transportation

 1.0%

CSX 

1,335,513‌

46,115‌

JB

Hunt

Transport

Services 

56,432‌

9,725‌

Norfolk

Southern 

157,575‌

39,158‌

Old

Dominion

Freight

Line 

130,336‌

25,890‌

Uber

Technologies (1)

1,448,036‌

108,834‌

Union

Pacific 

420,423‌

103,626‌

333,348‌

Industrial

Conglomerates

 0.6%

3M 

378,529‌

51,745‌

Honeywell

International 

451,193‌

93,266‌

Roper

Technologies 

73,995‌

41,174‌

186,185‌

Machinery

 1.7%

Caterpillar 

334,720‌

130,916‌

Cummins 

94,950‌

30,744‌

Deere 

176,749‌

73,763‌

Dover 

96,256‌

18,456‌

Fortive 

243,522‌

19,221‌

T.

ROWE

PRICE

Equity

Index

500

Fund

11

Shares

$

Value

(Cost

and

value

in

$000s)

‡

IDEX 

52,962‌

11,360‌

Illinois

Tool

Works 

186,134‌

48,780‌

Ingersoll

Rand 

282,206‌

27,701‌

Nordson 

38,031‌

9,988‌

Otis

Worldwide 

275,240‌

28,609‌

PACCAR 

361,957‌

35,718‌

Parker-Hannifin 

88,929‌

56,187‌

Pentair 

115,664‌

11,311‌

Snap-on 

36,548‌

10,588‌

Stanley

Black

&

Decker 

107,516‌

11,841‌

Westinghouse

Air

Brake

Technologies 

120,211‌

21,851‌

Xylem 

169,682‌

22,912‌

569,946‌

Passenger

Airlines

 0.1%

Delta

Air

Lines 

445,853‌

22,645‌

Southwest

Airlines 

418,430‌

12,398‌

United

Airlines

Holdings (1)

227,806‌

12,999‌

48,042‌

Professional

Services

 0.6%

Amentum

Holdings (1)

87,207‌

2,813‌

Automatic

Data

Processing 

281,289‌

77,841‌

Broadridge

Financial

Solutions 

79,924‌

17,186‌

Dayforce (1)(2)

107,933‌

6,611‌

Equifax 

85,817‌

25,218‌

Jacobs

Solutions 

87,207‌

11,415‌

Leidos

Holdings 

92,119‌

15,015‌

Paychex 

220,362‌

29,570‌

Paycom

Software 

34,773‌

5,792‌

Verisk

Analytics 

97,856‌

26,222‌

217,683‌

Trading

Companies

&

Distributors

 0.3%

Fastenal 

394,753‌

28,193‌

United

Rentals 

45,829‌

37,109‌

WW

Grainger 

30,708‌

31,900‌

97,202‌

Total

Industrials

&

Business

Services

2,905,578‌

INFORMATION

TECHNOLOGY

 31.5%

Communications

Equipment

 0.8%

Arista

Networks (1)

178,042‌

68,336‌

Cisco

Systems 

2,781,489‌

148,031‌

F5 (1)

39,573‌

8,714‌

T.

ROWE

PRICE

Equity

Index

500

Fund

12

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Juniper

Networks 

233,020‌

9,083‌

Motorola

Solutions 

115,382‌

51,879‌

286,043‌

Electronic

Equipment,

Instruments

&

Components

 0.6%

Amphenol,

Class

A 

831,033‌

54,150‌

CDW 

91,643‌

20,739‌

Corning 

536,128‌

24,206‌

Jabil 

77,014‌

9,228‌

Keysight

Technologies (1)

119,638‌

19,014‌

TE

Connectivity 

209,019‌

31,560‌

Teledyne

Technologies (1)

32,687‌

14,306‌

Trimble (1)

174,258‌

10,820‌

Zebra

Technologies,

Class

A (1)

35,554‌

13,166‌

197,189‌

IT

Services

 1.2%

Accenture,

Class

A 

432,460‌

152,866‌

Akamai

Technologies (1)

105,407‌

10,641‌

Cognizant

Technology

Solutions,

Class

A 

342,855‌

26,461‌

EPAM

Systems (1)

39,962‌

7,954‌

Gartner (1)

52,958‌

26,837‌

GoDaddy,

Class

A (1)

98,756‌

15,483‌

International

Business

Machines 

636,838‌

140,792‌

VeriSign (1)

57,166‌

10,859‌

391,893‌

Semiconductors

&

Semiconductor

Equipment

 11.1%

Advanced

Micro

Devices (1)

1,117,618‌

183,379‌

Analog

Devices 

343,459‌

79,054‌

Applied

Materials 

571,465‌

115,465‌

Broadcom 

3,217,193‌

554,966‌

Enphase

Energy (1)

94,553‌

10,686‌

First

Solar (1)

73,343‌

18,295‌

Intel 

2,946,156‌

69,117‌

KLA 

92,707‌

71,793‌

Lam

Research 

90,524‌

73,875‌

Microchip

Technology 

368,845‌

29,615‌

Micron

Technology 

766,714‌

79,516‌

Monolithic

Power

Systems 

33,877‌

31,319‌

NVIDIA 

17,000,822‌

2,064,580‌

NXP

Semiconductors 

176,752‌

42,422‌

ON

Semiconductor (1)

293,952‌

21,344‌

Qorvo (1)

67,357‌

6,958‌

QUALCOMM 

769,047‌

130,776‌

T.

ROWE

PRICE

Equity

Index

500

Fund

13

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Skyworks

Solutions 

111,916‌

11,054‌

Teradyne 

112,778‌

15,104‌

Texas

Instruments 

631,196‌

130,386‌

3,739,704‌

Software

 10.2%

Adobe (1)

306,159‌

158,523‌

ANSYS (1)

61,015‌

19,441‌

Autodesk (1)

148,784‌

40,987‌

Cadence

Design

Systems (1)

188,214‌

51,012‌

Crowdstrike

Holdings,

Class

A (1)

159,444‌

44,719‌

Fair

Isaac (1)

16,866‌

32,779‌

Fortinet (1)

436,749‌

33,870‌

Gen

Digital 

377,821‌

10,364‌

Intuit 

192,971‌

119,835‌

Microsoft 

5,136,945‌

2,210,427‌

Oracle 

1,105,440‌

188,367‌

Palantir

Technologies,

Class

A (1)

1,391,813‌

51,776‌

Palo

Alto

Networks (1)

223,787‌

76,490‌

PTC (1)

83,855‌

15,149‌

Salesforce 

669,138‌

183,150‌

ServiceNow (1)

142,106‌

127,098‌

Synopsys (1)

105,524‌

53,436‌

Tyler

Technologies (1)

29,808‌

17,400‌

3,434,823‌

Technology

Hardware,

Storage

&

Peripherals

 7.6%

Apple 

10,508,241‌

2,448,420‌

Dell

Technologies,

Class

C 

198,822‌

23,568‌

Hewlett

Packard

Enterprise 

890,074‌

18,211‌

HP 

676,325‌

24,260‌

NetApp 

144,621‌

17,862‌

Seagate

Technology

Holdings 

145,132‌

15,896‌

Super

Micro

Computer (1)

35,470‌

14,770‌

Western

Digital (1)

225,240‌

15,382‌

2,578,369‌

Total

Information

Technology

10,628,021‌

MATERIALS

 2.2%

Chemicals

 1.5%

Air

Products

&

Chemicals 

154,579‌

46,024‌

Albemarle (2)

81,253‌

7,695‌

Celanese 

75,517‌

10,267‌

CF

Industries

Holdings 

125,181‌

10,741‌

Corteva 

480,637‌

28,257‌

T.

ROWE

PRICE

Equity

Index

500

Fund

14

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Dow 

484,723‌

26,480‌

DuPont

de

Nemours 

292,320‌

26,049‌

Eastman

Chemical 

82,032‌

9,183‌

Ecolab 

175,722‌

44,867‌

FMC 

88,332‌

5,825‌

International

Flavors

&

Fragrances 

175,543‌

18,420‌

Linde 

331,915‌

158,277‌

LyondellBasell

Industries,

Class

A 

177,586‌

17,030‌

Mosaic 

228,025‌

6,107‌

PPG

Industries 

161,977‌

21,455‌

Sherwin-Williams 

159,993‌

61,065‌

497,742‌

Construction

Materials

 0.1%

Martin

Marietta

Materials 

41,960‌

22,585‌

Vulcan

Materials 

90,665‌

22,705‌

45,290‌

Containers

&

Packaging

 0.2%

Amcor 

1,012,996‌

11,477‌

Avery

Dennison 

55,769‌

12,312‌

Ball 

207,507‌

14,092‌

International

Paper 

239,518‌

11,700‌

Packaging

Corp.

of

America 

62,060‌

13,368‌

Smurfit

WestRock 

337,856‌

16,697‌

79,646‌

Metals

&

Mining

 0.4%

Freeport-McMoRan 

992,859‌

49,563‌

Newmont 

790,156‌

42,234‌

Nucor 

163,000‌

24,505‌

Steel

Dynamics 

97,896‌

12,343‌

128,645‌

Total

Materials

751,323‌

REAL

ESTATE

 2.2%

Health

Care

Real

Estate

Investment

Trusts

 0.3%

Alexandria

Real

Estate

Equities,

REIT 

106,337‌

12,628‌

Healthpeak

Properties,

REIT 

497,650‌

11,381‌

Ventas,

REIT 

285,548‌

18,312‌

Welltower,

REIT 

398,728‌

51,049‌

93,370‌

Hotel

&

Resort

Real

Estate

Investment

Trusts

 0.0%

Host

Hotels

&

Resorts,

REIT 

488,370‌

8,595‌

8,595‌

T.

ROWE

PRICE

Equity

Index

500

Fund

15

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Industrial

Real

Estate

Investment

Trusts

 0.2%

Prologis,

REIT 

641,348‌

80,989‌

80,989‌

Office

Real

Estate

Investment

Trusts

 0.0%

BXP,

REIT 

100,934‌

8,121‌

8,121‌

Real

Estate

Management

&

Development

 0.1%

CBRE

Group,

Class

A (1)

207,826‌

25,870‌

CoStar

Group (1)

286,221‌

21,593‌

47,463‌

Residential

Real

Estate

Investment

Trusts

 0.3%

AvalonBay

Communities,

REIT 

97,791‌

22,027‌

Camden

Property

Trust,

REIT 

73,933‌

9,133‌

Equity

Residential,

REIT 

233,800‌

17,409‌

Essex

Property

Trust,

REIT 

44,578‌

13,169‌

Invitation

Homes,

REIT 

398,568‌

14,054‌

Mid-America

Apartment

Communities,

REIT 

80,815‌

12,842‌

UDR,

REIT 

209,400‌

9,494‌

98,128‌

Retail

Real

Estate

Investment

Trusts

 0.3%

Federal

Realty

Investment

Trust,

REIT 

51,242‌

5,891‌

Kimco

Realty,

REIT 

460,248‌

10,687‌

Realty

Income,

REIT 

601,665‌

38,158‌

Regency

Centers,

REIT 

115,305‌

8,329‌

Simon

Property

Group,

REIT 

210,894‌

35,645‌

98,710‌

Specialized

Real

Estate

Investment

Trusts

 1.0%

American

Tower,

REIT 

323,426‌

75,216‌

Crown

Castle,

REIT 

302,453‌

35,880‌

Digital

Realty

Trust,

REIT 

211,739‌

34,266‌

Equinix,

REIT 

65,668‌

58,289‌

Extra

Space

Storage,

REIT 

145,962‌

26,301‌

Iron

Mountain,

REIT 

201,874‌

23,988‌

Public

Storage,

REIT 

108,437‌

39,457‌

SBA

Communications,

REIT 

74,819‌

18,009‌

VICI

Properties,

REIT 

718,919‌

23,947‌

Weyerhaeuser,

REIT 

505,813‌

17,127‌

352,480‌

Total

Real

Estate

787,856‌

T.

ROWE

PRICE

Equity

Index

500

Fund

16

Shares

$

Value

(Cost

and

value

in

$000s)

‡

UTILITIES

 2.6%

Electric

Utilities

 1.7%

Alliant

Energy 

178,463‌

10,831‌

American

Electric

Power 

367,771‌

37,733‌

Constellation

Energy 

215,372‌

56,001‌

Duke

Energy 

534,260‌

61,600‌

Edison

International 

265,079‌

23,086‌

Entergy 

147,640‌

19,431‌

Evergy 

161,452‌

10,012‌

Eversource

Energy 

243,677‌

16,582‌

Exelon 

697,549‌

28,286‌

FirstEnergy 

357,717‌

15,865‌

NextEra

Energy 

1,418,103‌

119,872‌

NRG

Energy 

145,443‌

13,250‌

PG&E 

1,485,713‌

29,372‌

Pinnacle

West

Capital 

79,096‌

7,007‌

PPL 

510,594‌

16,890‌

Southern 

757,098‌

68,275‌

Xcel

Energy 

388,508‌

25,370‌

559,463‌

Gas

Utilities

 0.0%

Atmos

Energy 

106,821‌

14,817‌

14,817‌

Independent

Power

&

Renewable

Electricity

Producers

 0.1%

AES 

497,959‌

9,989‌

Vistra 

237,449‌

28,147‌

38,136‌

Multi-Utilities

 0.7%

Ameren 

183,010‌

16,006‌

CenterPoint

Energy 

450,432‌

13,252‌

CMS

Energy 

206,809‌

14,607‌

Consolidated

Edison 

238,377‌

24,822‌

Dominion

Energy 

583,333‌

33,711‌

DTE

Energy 

143,990‌

18,490‌

NiSource 

314,124‌

10,884‌

Public

Service

Enterprise

Group 

343,586‌

30,651‌

Sempra 

435,725‌

36,440‌

WEC

Energy

Group 

220,516‌

21,209‌

220,072‌

T.

ROWE

PRICE

Equity

Index

500

Fund

17

Shares

$

Value

(Cost

and

value

in

$000s)

‡

Water

Utilities

 0.1%

American

Water

Works 

136,063‌

19,898‌

19,898‌

Total

Utilities

852,386‌

Total

Common

Stocks

(Cost

$9,534,925)

33,654,042‌

SHORT-TERM

INVESTMENTS

 0.1%

Money

Market

Funds

 0.1%

T.

Rowe

Price

Government

Reserve

Fund,

4.97% (3)(4)

46,800,752‌

46,801‌

Total

Short-Term

Investments

(Cost

$46,801)

46,801‌

SECURITIES

LENDING

COLLATERAL

 0.0%

INVESTMENTS

IN

A

POOLED

ACCOUNT

THROUGH

SECURITIES

LENDING

PROGRAM

WITH

STATE

STREET

BANK

AND

TRUST

COMPANY 0.0%

Money

Market

Funds 0.0%

T.

Rowe

Price

Government

Reserve

Fund,

4.97% (3)(4)

11,393,148‌

11,393‌

Total

Investments

in

a

Pooled

Account

through

Securities

Lending

Program

with

State

Street

Bank

And

Trust

Company

11,393‌

Total

Securities

Lending

Collateral

(Cost

$11,393)

11,393‌

Total

Investments

in

Securities

 100.0%

(Cost

$9,593,119)

$

33,712,236‌

Other

Assets

Less

Liabilities

0.0%

11,933‌

Net

Assets

100.0%

$

33,724,169‌

‡

Shares

and

Notional

Amount

are

denominated

in

U.S.

dollars

unless

otherwise

noted.

(1)

Non-income

producing

(2)

All

or

a

portion

of

this

security

is

on

loan

at

September

30,

2024.

(3)

Affiliated

Companies

(4)

Seven-day

yield

REIT

A

domestic

Real

Estate

Investment

Trust

whose

distributions

pass-through

with

original

tax

character

to

the

shareholder

T.

ROWE

PRICE

Equity

Index

500

Fund

18

FUTURES

CONTRACTS

($000s)

Expiration

Date

Notional

Amount

Value

and

Unrealized

Gain

(Loss)

Long,

233

S&P

500

E-Mini

Index

contracts

12/24

67,736

$

876‌

Net

payments

(receipts)

of

variation

margin

to

date

(596‌)

Variation

margin

receivable

(payable)

on

open

futures

contracts

$

280‌

T.

ROWE

PRICE

Equity

Index

500

Fund

19

The

accompanying

notes

are

an

integral

part

of

this

Portfolio

of

Investments.

AFFILIATED

COMPANIES

($000s)

The

fund

may

invest

in

certain

securities

that

are

considered

affiliated

companies.

As

defined

by

the

1940

Act,

an

affiliated

company

is

one

in

which

the

fund

owns

5%

or

more

of

the

outstanding

voting

securities,

or

a

company

that

is

under

common

ownership

or

control.

The

following

securities

were

considered

affiliated

companies

for

all

or

some

portion

of

the

nine

months

ended

September

30,

2024.

Net

realized

gain

(loss),

investment

income,

change

in

net

unrealized

gain/loss,

and

purchase

and

sales

cost

reflect

all

activity

for

the

period

then

ended.

Affiliate

Net

Realized

Gain

(Loss)

Change

in

Net

Unrealized

Gain/Loss

Investment

Income

T.

Rowe

Price

Group 

$

285‌

$

(111‌)

$

584‌

T.

Rowe

Price

Government

Reserve

Fund,

4.97%

—‌

—‌

2,860‌++

Totals

$

285‌#

$

(111‌)

$

3,444‌+

Supplementary

Investment

Schedule

Affiliate

Value

12/31/23

Purchase

Cost

Sales

Cost

Value

09/30/24

T.

Rowe

Price

Group 

$

17,190‌

$

296‌

$

768‌

$

16,607‌

T.

Rowe

Price

Government

Reserve

Fund,

4.97%

218,349‌

 ¤

 ¤

58,194‌

Total

$

74,801‌^

#

Capital

gain

distributions

from

underlying

Price

funds

represented

$0

of

the

net

realized

gain

(loss).

++

Excludes

earnings

on

securities

lending

collateral,

which

are

subject

to

rebates

and

fees.

+

Investment

income

comprised

$3,444

of

dividend

income

and

$0

of

interest

income.

¤

Purchase

and

sale

information

not

shown

for

cash

management

funds.

^

The

cost

basis

of

investments

in

affiliated

companies

was

$64,918.

T.

ROWE

PRICE

Equity

Index

500

Fund

Unaudited

Notes

to

Portfolio

of

Investments

20

T.

Rowe

Price

Equity

Index

500

Fund (the

fund) is

registered

under

the

Investment

Company

Act

of

1940

(the

1940

Act)

as

an

open-end

management

investment

company

and

follows

accounting

and

reporting

guidance

of

the

Financial

Accounting

Standards

Board

Accounting

Standards

Codification

Topic

946.

The

accompanying

Portfolio

of

Investments

was

prepared

in

accordance

with

accounting

principles

generally

accepted

in

the

United

States

of

America

(GAAP).

For

additional

information

on

the

fund’s

significant

accounting

policies

and

investment

related

disclosures,

please

refer

to

the

fund’s most

recent

semiannual

or

annual

shareholder

report

and

its

prospectus.

VALUATION 

Fair

Value

  The

fund’s

financial

instruments

are

valued

at

the

close

of

the

New

York

Stock

Exchange

(NYSE),

normally

4

p.m.

ET,

each

day

the

NYSE

is

open

for

business,

and

are

reported

at

fair

value,

which

GAAP

defines

as

the

price

that

would

be

received

to

sell

an

asset

or

paid

to

transfer

a

liability

in

an

orderly

transaction

between

market

participants

at

the

measurement

date. The fund’s

Board

of

Directors

(the

Board)

has

designated

T.

Rowe

Price

Associates,

Inc.

as

the

fund’s

valuation

designee

(Valuation

Designee).

Subject

to

oversight

by

the

Board,

the

Valuation

Designee

performs

the

following

functions

in

performing

fair

value

determinations:

assesses

and

manages

valuation

risks;

establishes

and

applies

fair

value

methodologies;

tests

fair

value

methodologies;

and

evaluates

pricing

vendors

and

pricing

agents.

The

duties

and

responsibilities

of

the

Valuation

Designee

are

performed

by

its

Valuation

Committee. The

Valuation

Designee provides

periodic

reporting

to

the

Board

on

valuation

matters.

Various

valuation

techniques

and

inputs

are

used

to

determine

the

fair

value

of

financial

instruments.

GAAP

establishes

the

following

fair

value

hierarchy

that

categorizes

the

inputs

used

to

measure

fair

value:

Level

1

–

quoted

prices

(unadjusted)

in

active

markets

for

identical

financial

instruments

that

the

fund

can

access

at

the

reporting

date

Level

2

–

inputs

other

than

Level

1

quoted

prices

that

are

observable,

either

directly

or

indirectly

(including,

but

not

limited

to,

quoted

prices

for

similar

financial

instruments

in

active

markets,

quoted

prices

for

identical

or

similar

financial

instruments

in

inactive

markets,

interest

rates

and

yield

curves,

implied

volatilities,

and

credit

spreads)

T.

ROWE

PRICE

Equity

Index

500

Fund

21

Level

3

–

unobservable

inputs

(including

the Valuation

Designee’s assumptions

in

determining

fair

value)

Observable

inputs

are

developed

using

market

data,

such

as

publicly

available

information

about

actual

events

or

transactions,

and

reflect

the

assumptions

that

market

participants

would

use

to

price

the

financial

instrument.

Unobservable

inputs

are

those

for

which

market

data

are

not

available

and

are

developed

using

the

best

information

available

about

the

assumptions

that

market

participants

would

use

to

price

the

financial

instrument.

GAAP

requires

valuation

techniques

to

maximize

the

use

of

relevant

observable

inputs

and

minimize

the

use

of

unobservable

inputs.

When

multiple

inputs

are

used

to

derive

fair

value,

the

financial

instrument

is

assigned

to

the

level

within

the

fair

value

hierarchy

based

on

the

lowest-level

input

that

is

significant

to

the

fair

value

of

the

financial

instrument.

Input

levels

are

not

necessarily

an

indication

of

the

risk

or

liquidity

associated

with

financial

instruments

at

that

level

but

rather

the

degree

of

judgment

used

in

determining

those

values.

Valuation

Techniques 

Equity

securities,

including

exchange-traded

funds, listed

or

regularly

traded

on

a

securities

exchange

or

in

the

over-the-

counter

(OTC)

market

are

valued

at

the

last

quoted

sale

price

or,

for

certain

markets,

the

official

closing

price

at

the

time

the

valuations

are

made.

OTC

Bulletin

Board

securities

are

valued

at

the

mean

of

the

closing

bid

and

asked

prices.

A

security

that

is

listed

or

traded

on

more

than

one

exchange

is

valued

at

the

quotation

on

the

exchange

determined

to

be

the

primary

market

for

such

security.

Listed

securities

not

traded

on

a

particular

day

are

valued

at

the

mean

of

the

closing

bid

and

asked

prices

for

domestic

securities.

Investments

in

mutual

funds

are

valued

at

the

mutual

fund’s

closing

NAV

per

share

on

the

day

of

valuation.

Futures

contracts

are

valued

at

closing

settlement

prices.

Investments

for

which

market

quotations are

not

readily

available

or

deemed

unreliable

are

valued

at

fair

value

as

determined

in

good

faith

by

the

Valuation

Designee.

The

Valuation

Designee

has

adopted

methodologies

for

determining

the

fair

value

of

investments

for

which

market

quotations

are

not

readily

available

or

deemed

unreliable,

including

the

use

of

other

pricing

sources.

Factors

used

in

determining

fair

value

vary

by

type

of

investment

and

may

include

market

or

investment

specific

considerations.

The

Valuation

Designee typically

will

afford

greatest

weight

to

actual

prices

in

arm’s

length

transactions,

to

the

extent

they

represent

orderly

transactions

between

market

participants,

transaction

information

can

be

reliably

obtained,

and

prices

are

deemed

representative

of

fair

value.

However,

the

Valuation

Designee may

also

T.

ROWE

PRICE

Equity

Index

500

Fund

22

consider

other

valuation

methods

such

as

market-based

valuation

multiples;

a

discount

or

premium

from

market

value

of

a

similar,

freely

traded

security

of

the

same

issuer;

discounted

cash

flows;

yield

to

maturity;

or

some

combination.

Fair

value

determinations

are

reviewed

on

a

regular

basis.

Because

any

fair

value

determination

involves

a

significant

amount

of

judgment,

there

is

a

degree

of

subjectivity

inherent

in

such

pricing

decisions. Fair

value

prices

determined

by

the

Valuation

Designee could

differ

from

those

of

other

market

participants,

and

it

is

possible

that

the

fair

value

determined

for

a

security

may

be

materially

different

from

the

value

that

could

be

realized

upon

the

sale

of

that

security.

Valuation

Inputs

  On

September

30,

2024,

all

of

the

fund’s

financial

instruments

were

classified

as

Level

1,

based

on

the

inputs

used

to

determine

their

fair

values.

OTHER

MATTERS 

Unpredictable environmental,

political,

social

and

economic

events,

including

but

not

limited

to,

environmental

or

natural

disasters,

war

and

conflict

(including

Russia’s

military

invasion

of

Ukraine

and

the

conflict

in

Israel,

Gaza

and

surrounding

areas),

terrorism,

geopolitical

developments

(including

trading

and

tariff

arrangements,

sanctions

and

cybersecurity

attacks),

and

public

health

epidemics

(including

the

global

outbreak

of

COVID-19)

and

similar

public

health

threats,

may

significantly

affect

the

economy

and

the

markets

and

issuers

in

which

a

fund

invests.

The

extent

and

duration

of

such

events

and

resulting

market

disruptions

cannot

be

predicted.

These

and

other

similar

events

may

cause

instability

across

global

markets,

including

reduced

liquidity

and

disruptions

in

trading

markets,

while

some

events

may

affect

certain

geographic

regions,

countries,

sectors,

and

industries

more

significantly

than

others,

and

exacerbate

other

pre-existing

political,

social,

and

economic

risks.

The

fund’s

performance

could

be

negatively

impacted

if

the

value

of

a

portfolio

holding

were

harmed

by

these

or

such

events.

Management

actively

monitors

the

risks

and

financial

impacts

arising

from

such

events.

F50-054Q3

09/24