T. Rowe Price Equity Index 500 Fund (PREIX) N-CSRS Certified semi-annual shareholder report (management investment company)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-05986

T. Rowe Price Index Trust, Inc.

(Exact name of registrant as specified in charter)

100 East Pratt Street, Baltimore, MD 21202

(Address of principal executive offices)

David Oestreicher

100 East Pratt Street, Baltimore, MD 21202

(Name and address of agent for service)

Registrant’s telephone number, including area code: (410) 345-2000

Date of fiscal year end: December 31

Date of reporting period: June 30, 2024

Item 1. Reports to Shareholders

(a) Report pursuant to Rule 30e-1

Semi-Annual Shareholder Report

June 30, 2024

Extended Equity Market Index Fund

(PEXMX)

This semi-annual shareholder report contains important information about Extended Equity Market Index Fund (the "fund") for the period of January 1, 2024 to June 30, 2024. You can find the fund’s prospectus, financial information on Form N‑CSR (which includes required tax information for dividends), holdings, proxy voting information, and other information atwww.troweprice.com/prospectus. You can also request this information without charge by contacting T. Rowe Price at 1‑800‑638‑5660 or info@troweprice.com or contacting your intermediary. 

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment
Extended Equity Market Index Fund	$12	0.24%

What are some fund statistics?

Fund Statistics

Total Net Assets (000s)	$936,232
Number of Portfolio Holdings	1,658

Portfolio Turnover Rate 5.6%

What did the fund invest in?

Sector Allocation (as a % of Net Assets)

Industrials & Business Services	17.7%
Information Technology	17.5
Financials	17.0
Health Care	12.1
Consumer Discretionary	11.3
Real Estate	5.5
Materials	4.9
Energy	4.8
Communication Services	4.0
Other	5.2

Top Ten Holdings (as a % of Net Assets)

Marvell Technology	0.9%
CRH	0.8
Apollo Global Management	0.8
Palantir Technologies	0.8
Workday	0.7
Snowflake	0.7
Trade Desk	0.7
Datadog	0.6
Cheniere Energy	0.6
Coinbase Global	0.6

If you invest directly with T. Rowe Price, you can elect to receive future shareholder reports or other important documents through electronic delivery by enrolling at www.troweprice.com/paperless. If you invest through a financial intermediary such as an investment advisor, a bank, retirement plan sponsor or a brokerage firm, please contact that organization and ask if it can provide electronic delivery.

202407-3695801

F124-053 8/24

Extended Equity Market Index Fund 

 (PEXMX)

T. Rowe Price Investment Services, Inc.

100 East Pratt Street

Baltimore, MD 21202

Item 1. (b) Notice pursuant to Rule 30e-3.

Not applicable.

Item 2. Code of Ethics.

A code of ethics, as defined in Item 2 of Form N-CSR, applicable to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions is filed as an exhibit to the registrant’s annual Form N-CSR. No substantive amendments were approved or waivers were granted to this code of ethics during the registrant’s most recent fiscal half-year.

Item 3. Audit Committee Financial Expert.

Disclosure required in registrant’s annual Form N-CSR.

Item 4. Principal Accountant Fees and Services.

Disclosure required in registrant’s annual Form N-CSR.

Item 5. Audit Committee of Listed Registrants.

Not applicable.

Item 6. Investments.

(a) Not applicable. The complete schedule of investments is included in Item 7 of this Form N-CSR.

(b) Not applicable.

Item 7. Financial Statements and Financial Highlights for Open-End Management Investment Companies.

(a – b) Report pursuant to Regulation S-X.

Financial

Highlights

Portfolio

of

Investments

Financial

Statements

and

Notes

Additional

Fund

Information

June

30,

2024

Financial

Statements

and

Other

Information

For

more

insights

from

T.

Rowe

Price

investment

professionals,

go

to

troweprice.com

.

T.

ROWE

PRICE

PEXMX

Extended

Equity

Market

Index

Fund

–

.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Financial

Highlights

2

For

a

share

outstanding

throughout

each

period

6

Months

.

Ended

6/30/24

..

Year

..

..

Ended

.

12/31/23

12/31/22

12/31/21

12/31/20

12/31/19

NET

ASSET

VALUE

Beginning

of

period

$

30.12‌

$

24.92‌

$

36.18‌

$

37.12‌

$

29.25‌

$

23.98‌

Investment

activities

Net

investment

income

(1)(2)

0.13‌

0.32‌

0.29‌

0.27‌

0.24‌

0.32‌

Net

realized

and

unrealized

gain/

loss

0.86‌

5.98‌

(9.67‌)

4.17‌

8.74‌

6.30‌

Total

from

investment

activities

0.99‌

6.30‌

(9.38‌)

4.44‌

8.98‌

6.62‌

Distributions

Net

investment

income

—‌

(0.32‌)

(0.33‌)

(0.27‌)

(0.24‌)

(0.31‌)

Net

realized

gain

—‌

(0.78‌)

(1.55‌)

(5.11‌)

(0.87‌)

(1.04‌)

Total

distributions

—‌

(1.10‌)

(1.88‌)

(5.38‌)

(1.11‌)

(1.35‌)

NET

ASSET

VALUE

End

of

period

$

31.11‌

$

30.12‌

$

24.92‌

$

36.18‌

$

37.12‌

$

29.25‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Financial

Highlights

3

For

a

share

outstanding

throughout

each

period

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

6

Months

.

Ended

6/30/24

..

Year

..

..

Ended

.

12/31/23

12/31/22

12/31/21

12/31/20

12/31/19

Ratios/Supplemental

Data

Total

return

(2)(3)

3.29‌%

25.35‌%

(26.00‌)%

12.31‌%

30.82‌%

27.70‌%

Ratios

to

average

net

assets:

(2)

Gross

expenses

before

waivers/

payments

by

Price

Associates

0.24‌%

(4)

0.25‌%

0.26‌%

0.30‌%

0.35‌%

0.35‌%

Net

expenses

after

waivers/

payments

by

Price

Associates

0.24‌%

(4)

0.25‌%

0.25‌%

0.30‌%

0.35‌%

0.35‌%

Net

investment

income

0.84‌%

(4)

1.16‌%

1.01‌%

0.66‌%

0.83‌%

1.13‌%

Portfolio

turnover

rate

5.6‌%

13.3‌%

13.7‌%

36.7‌%

35.9‌%

17.4‌%

Net

assets,

end

of

period

(in

thousands)

$936,232

$953,770

$826,200

$1,281,380

$1,161,458

$938,905

0‌%

0‌%

0‌%

0‌%

0‌%

0‌%

(1)

Per

share

amounts

calculated

using

average

shares

outstanding

method.

(2)

Includes

the

impact

of

expense-related

arrangements

with

Price

Associates.

(3)

Total

return

reflects

the

rate

that

an

investor

would

have

earned

on

an

investment

in

the

fund

during

each

period,

assuming

reinvestment

of

all

distributions,

and

payment

of

no

redemption

or

account

fees,

if

applicable.

Total

return

is

not

annualized

for

periods

less

than

one

year.

(4)

Annualized

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

June

30,

2024

(Unaudited)

4

Portfolio

of

Investments

‡

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

COMMON

STOCKS

 99.3%

COMMUNICATION

SERVICES

 4.0%

Diversified

Telecommunication

Services

 0.4%

AST

SpaceMobile (1)(2)

22,600‌

262‌

Cogent

Communications

Holdings 

6,500‌

367‌

Frontier

Communications

Parent (1)

27,853‌

729‌

GCI

Liberty,

Class

A,

EC (1)(3)

21,362‌

—‌

Globalstar (1)

138,400‌

155‌

IDT,

Class

B 

8,242‌

296‌

Iridium

Communications 

22,491‌

599‌

Liberty

Global,

Class

A (1)

24,334‌

424‌

Liberty

Global,

Class

C (1)

26,275‌

469‌

Liberty

Latin

America,

Class

C (1)

15,146‌

146‌

Lumen

Technologies (1)(2)

173,520‌

191‌

Shenandoah

Telecommunications 

16,721‌

273‌

3,911‌

Entertainment

 1.1%

AMC

Entertainment

Holdings,

Class

A (1)

15,532‌

77‌

Cinemark

Holdings (1)

9,440‌

204‌

Endeavor

Group

Holdings,

Class

A 

33,064‌

894‌

Kartoon

Studios (1)(2)

31,610‌

33‌

Liberty

Media

Corp-Liberty

Formula

One,

Class

A (1)

6,187‌

397‌

Liberty

Media

Corp-Liberty

Formula

One,

Class

C (1)

31,160‌

2,239‌

Liberty

Media

Corp-Liberty

Live,

Class

A (1)

2,414‌

91‌

Liberty

Media

Corp-Liberty

Live,

Class

C (1)

6,646‌

254‌

Lions

Gate

Entertainment,

Class

B (1)

17,763‌

152‌

Madison

Square

Garden

Entertainment (1)

6,783‌

232‌

Madison

Square

Garden

Sports (1)

2,521‌

474‌

Playtika

Holding 

20,600‌

162‌

ROBLOX,

Class

A (1)

68,686‌

2,556‌

Roku (1)

15,765‌

945‌

Skillz (1)

19,852‌

143‌

Sphere

Entertainment (1)

7,618‌

267‌

TKO

Group

Holdings 

7,600‌

821‌

Warner

Music

Group,

Class

A (2)

23,501‌

720‌

10,661‌

Interactive

Media

&

Services

 1.0%

Angi (1)(2)

34,000‌

65‌

Bumble,

Class

A (1)

18,992‌

200‌

Cargurus (1)

14,052‌

368‌

Cars.com (1)

9,920‌

195‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

5

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

fuboTV (1)(2)

53,700‌

67‌

IAC (1)

6,234‌

292‌

MediaAlpha,

Class

A (1)

7,794‌

103‌

Pinterest,

Class

A (1)

86,226‌

3,800‌

Reddit,

Class

A (1)

4,976‌

318‌

Rumble (1)(2)

13,700‌

76‌

Shutterstock 

2,800‌

108‌

Snap,

Class

A (1)

144,220‌

2,396‌

TripAdvisor (1)

12,900‌

230‌

TrueCar (1)

55,425‌

173‌

Trump

Media

&

Technology

Group (1)

1,235‌

40‌

Vimeo (1)

40,596‌

151‌

Yelp (1)

7,192‌

266‌

Ziff

Davis (1)

4,444‌

245‌

ZoomInfo

Technologies (1)

37,300‌

476‌

9,569‌

Media

 1.4%

Cable

One (2)

535‌

190‌

Cardlytics (1)(2)

8,134‌

67‌

Clear

Channel

Outdoor

Holdings (1)

123,500‌

174‌

EchoStar,

Class

A (1)

24,070‌

429‌

EW

Scripps,

Class

A (1)

24,845‌

78‌

Gray

Television 

21,200‌

110‌

iHeartMedia,

Class

A (1)(2)

42,400‌

46‌

John

Wiley

&

Sons,

Class

A 

7,370‌

300‌

Liberty

Broadband,

Class

A (1)

2,793‌

153‌

Liberty

Broadband,

Class

C (1)

14,816‌

812‌

Liberty

Media

Corp-Liberty

SiriusXM (1)

21,317‌

472‌

Liberty

Media

Corp-Liberty

SiriusXM,

Class

A (1)

8,600‌

191‌

Magnite (1)

17,700‌

235‌

New

York

Times,

Class

A 

22,400‌

1,147‌

Nexstar

Media

Group 

5,897‌

979‌

PubMatic,

Class

A (1)

10,300‌

209‌

Sinclair (2)

11,410‌

152‌

Sirius

XM

Holdings (2)

93,872‌

266‌

TechTarget (1)

4,200‌

131‌

TEGNA 

33,210‌

463‌

Thryv

Holdings (1)

11,122‌

198‌

Trade

Desk,

Class

A (1)

62,745‌

6,128‌

12,930‌

Wireless

Telecommunication

Services

 0.1%

Gogo (1)

18,063‌

174‌

Telephone

&

Data

Systems 

18,103‌

375‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

6

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

United

States

Cellular (1)

3,857‌

215‌

764‌

Total

Communication

Services

37,835‌

CONSUMER

DISCRETIONARY

 11.3%

Automobile

Components

 0.9%

Adient (1)

14,100‌

348‌

Autoliv 

11,403‌

1,220‌

Dana 

21,572‌

261‌

Dorman

Products (1)

4,800‌

439‌

Fox

Factory

Holding (1)

6,800‌

328‌

Gentex 

28,248‌

952‌

Gentherm (1)

6,000‌

296‌

Goodyear

Tire

&

Rubber (1)

39,435‌

448‌

LCI

Industries 

4,309‌

446‌

Lear 

7,000‌

800‌

Mobileye

Global,

Class

A (1)(2)

9,004‌

253‌

Modine

Manufacturing (1)

6,600‌

661‌

Motorcar

Parts

of

America (1)

14,500‌

90‌

Patrick

Industries 

4,278‌

464‌

Phinia 

6,482‌

255‌

QuantumScape (1)

46,862‌

231‌

Standard

Motor

Products 

5,388‌

149‌

Stoneridge (1)

9,536‌

152‌

Superior

Industries

International (1)

15,200‌

49‌

Visteon (1)

4,300‌

459‌

XPEL (1)

2,900‌

103‌

8,404‌

Automobiles

 0.4%

Harley-Davidson 

19,116‌

641‌

Lucid

Group (1)(2)

133,539‌

349‌

Rivian

Automotive,

Class

A (1)

106,135‌

1,424‌

Thor

Industries 

7,541‌

705‌

Winnebago

Industries 

3,781‌

205‌

3,324‌

Broadline

Retail

 0.3%

Big

Lots (1)

10,000‌

17‌

Dillard's,

Class

A (2)

400‌

176‌

Kohl's 

22,042‌

507‌

Macy's 

39,300‌

755‌

Nordstrom 

13,832‌

293‌

Ollie's

Bargain

Outlet

Holdings (1)

8,800‌

864‌

2,612‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

7

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Distributors

 0.0%

A-Mark

Precious

Metals (2)

4,771‌

154‌

154‌

Diversified

Consumer

Services

 1.0%

ADT 

29,184‌

222‌

Adtalem

Global

Education (1)

6,300‌

430‌

Bright

Horizons

Family

Solutions (1)

9,521‌

1,048‌

Carriage

Services 

6,600‌

177‌

Chegg (1)

16,300‌

51‌

Clear

Secure,

Class

A 

14,457‌

270‌

Coursera (1)

15,400‌

110‌

Duolingo (1)

5,555‌

1,159‌

Frontdoor (1)

14,450‌

488‌

Graham

Holdings,

Class

B 

341‌

239‌

Grand

Canyon

Education (1)

4,909‌

687‌

H&R

Block 

20,118‌

1,091‌

Laureate

Education 

23,200‌

347‌

Service

Corp

International 

22,831‌

1,624‌

Strategic

Education 

5,463‌

605‌

Stride (1)

6,000‌

423‌

WW

International (1)

12,700‌

15‌

8,986‌

Hotels,

Restaurants

&

Leisure

 3.0%

Aramark 

41,482‌

1,411‌

Bally's (1)

11,600‌

139‌

BJ's

Restaurants (1)

4,933‌

171‌

Bloomin'

Brands 

17,943‌

345‌

Boyd

Gaming 

11,457‌

631‌

Brinker

International (1)

8,279‌

599‌

Canterbury

Park

Holding 

6,213‌

136‌

Cava

Group (1)

2,355‌

218‌

Cheesecake

Factory (2)

5,840‌

229‌

Choice

Hotels

International 

4,290‌

510‌

Churchill

Downs 

9,632‌

1,345‌

Chuy's

Holdings (1)

6,906‌

179‌

Cracker

Barrel

Old

Country

Store 

1,900‌

80‌

Dave

&

Buster's

Entertainment (1)

6,800‌

271‌

Denny's (1)

16,465‌

117‌

Dine

Brands

Global 

5,000‌

181‌

DoorDash,

Class

A (1)

44,603‌

4,852‌

DraftKings,

Class

A (1)

71,328‌

2,723‌

Dutch

Bros,

Class

A (1)

6,200‌

257‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

8

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Everi

Holdings (1)

20,600‌

173‌

Hilton

Grand

Vacations (1)

12,610‌

510‌

Hyatt

Hotels,

Class

A 

5,790‌

880‌

Jack

in

the

Box 

4,600‌

234‌

Light

&

Wonder (1)

11,805‌

1,238‌

Marriott

Vacations

Worldwide 

4,761‌

416‌

Papa

John's

International 

2,845‌

134‌

Penn

Entertainment (1)(2)

22,162‌

429‌

Planet

Fitness,

Class

A (1)

14,072‌

1,036‌

Red

Robin

Gourmet

Burgers (1)

7,700‌

58‌

Red

Rock

Resorts,

Class

A 

9,100‌

500‌

Sabre (1)

48,300‌

129‌

Shake

Shack,

Class

A (1)

4,200‌

378‌

Six

Flags

Entertainment (1)

9,800‌

325‌

Sweetgreen,

Class

A (1)

13,100‌

395‌

Texas

Roadhouse 

8,740‌

1,501‌

Travel

+

Leisure 

12,876‌

579‌

United

Parks

&

Resorts (1)

4,767‌

259‌

Vail

Resorts 

5,310‌

956‌

Wendy's 

31,152‌

528‌

Wingstop 

4,894‌

2,068‌

Wyndham

Hotels

&

Resorts 

11,840‌

876‌

27,996‌

Household

Durables

 1.5%

Cavco

Industries (1)

1,773‌

614‌

Century

Communities 

1,765‌

144‌

Cricut,

Class

A (1)

13,400‌

80‌

Flexsteel

Industries 

2,994‌

93‌

GoPro,

Class

A (1)

38,800‌

55‌

Green

Brick

Partners (1)

4,602‌

263‌

Helen

of

Troy (1)

3,300‌

306‌

Hovnanian

Enterprises,

Class

A (1)

1,384‌

196‌

Installed

Building

Products 

3,900‌

802‌

iRobot (1)

14,700‌

134‌

KB

Home 

11,900‌

835‌

La-Z-Boy 

9,950‌

371‌

Leggett

&

Platt 

11,147‌

128‌

LGI

Homes (1)

3,937‌

352‌

Lovesac (1)(2)

5,600‌

127‌

M/I

Homes (1)

3,270‌

399‌

Meritage

Homes 

4,700‌

761‌

Newell

Brands 

46,505‌

298‌

Skyline

Champion (1)

8,882‌

602‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

9

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Sonos (1)

21,901‌

323‌

Taylor

Morrison

Home (1)

15,100‌

837‌

Tempur

Sealy

International 

22,761‌

1,078‌

Toll

Brothers 

14,015‌

1,614‌

TopBuild (1)

4,522‌

1,742‌

Tri

Pointe

Homes (1)

16,178‌

603‌

Universal

Electronics (1)

9,900‌

115‌

Whirlpool 

5,650‌

578‌

Worthington

Enterprises 

4,479‌

212‌

13,662‌

Leisure

Products

 0.4%

Acushnet

Holdings 

5,075‌

322‌

Brunswick 

10,000‌

728‌

Funko,

Class

A (1)

10,100‌

99‌

Malibu

Boats,

Class

A (1)

4,300‌

151‌

Marine

Products 

11,600‌

117‌

Mattel (1)

54,226‌

882‌

Peloton

Interactive,

Class

A (1)

58,131‌

196‌

Polaris 

8,240‌

645‌

Topgolf

Callaway

Brands (1)

17,500‌

268‌

YETI

Holdings (1)

13,500‌

515‌

3,923‌

Specialty

Retail

 3.0%

1-800-Flowers.com,

Class

A (1)

13,368‌

127‌

Aaron's 

14,168‌

141‌

Abercrombie

&

Fitch,

Class

A (1)

7,000‌

1,245‌

Academy

Sports

&

Outdoors 

10,843‌

577‌

Advance

Auto

Parts 

10,600‌

671‌

American

Eagle

Outfitters 

18,645‌

372‌

Asbury

Automotive

Group (1)

2,429‌

554‌

AutoNation (1)

3,204‌

511‌

Boot

Barn

Holdings (1)

5,300‌

683‌

Burlington

Stores (1)

10,449‌

2,508‌

Caleres 

6,430‌

216‌

Carvana (1)

15,352‌

1,976‌

Chewy,

Class

A (1)(2)

16,041‌

437‌

Dick's

Sporting

Goods 

8,000‌

1,719‌

Five

Below (1)

8,524‌

929‌

Floor

&

Decor

Holdings,

Class

A (1)

16,471‌

1,637‌

Foot

Locker 

12,803‌

319‌

GameStop,

Class

A (1)

38,104‌

941‌

Gap 

31,100‌

743‌

Genesco (1)

5,100‌

132‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

10

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Group

1

Automotive 

2,109‌

627‌

Guess? 

8,920‌

182‌

Hibbett 

3,800‌

331‌

Lithia

Motors 

3,600‌

909‌

Monro 

7,100‌

169‌

Murphy

USA 

2,840‌

1,333‌

National

Vision

Holdings (1)

9,922‌

130‌

ODP (1)

6,512‌

256‌

Penske

Automotive

Group 

2,708‌

404‌

PetMed

Express 

30,900‌

125‌

RealReal (1)

35,000‌

112‌

Revolve

Group (1)

8,700‌

138‌

RH (1)

2,602‌

636‌

Sally

Beauty

Holdings (1)

15,300‌

164‌

Signet

Jewelers 

6,267‌

561‌

Sleep

Number (1)

5,500‌

53‌

Sonic

Automotive,

Class

A 

5,003‌

273‌

Stitch

Fix,

Class

A (1)

33,100‌

137‌

Upbound

Group 

7,450‌

229‌

Urban

Outfitters (1)

5,500‌

226‌

Valvoline (1)

20,117‌

869‌

Victoria's

Secret (1)

9,624‌

170‌

Vroom (1)(2)

1,071‌

10‌

Wayfair,

Class

A (1)(2)

12,400‌

654‌

Williams-Sonoma 

8,964‌

2,531‌

27,667‌

Textiles,

Apparel

&

Luxury

Goods

 0.8%

Capri

Holdings (1)

14,895‌

493‌

Carter's 

5,900‌

366‌

Columbia

Sportswear 

3,462‌

274‌

Crocs (1)

8,200‌

1,197‌

Figs,

Class

A (1)

19,600‌

104‌

G-III

Apparel

Group (1)

9,000‌

244‌

Hanesbrands (1)

9,175‌

45‌

Kontoor

Brands 

8,300‌

549‌

Levi

Strauss,

Class

A 

4,202‌

81‌

Movado

Group 

6,705‌

167‌

Oxford

Industries 

2,200‌

220‌

PVH 

7,205‌

763‌

Skechers

USA,

Class

A (1)

19,200‌

1,327‌

Steven

Madden 

12,050‌

510‌

Superior

Group 

12,443‌

235‌

Under

Armour,

Class

A (1)

18,600‌

124‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

11

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Under

Armour,

Class

C (1)

20,100‌

131‌

Vera

Bradley (1)

24,500‌

153‌

VF 

54,329‌

733‌

Wolverine

World

Wide 

15,200‌

206‌

7,922‌

Total

Consumer

Discretionary

104,650‌

CONSUMER

STAPLES

 2.9%

Beverages

 0.3%

Boston

Beer,

Class

A (1)

1,500‌

458‌

Celsius

Holdings (1)

22,632‌

1,292‌

Coca-Cola

Consolidated 

700‌

759‌

National

Beverage 

3,696‌

189‌

Willamette

Valley

Vineyards (1)

10,850‌

43‌

2,741‌

Consumer

Staples

Distribution

&

Retail

 1.1%

Albertsons,

Class

A 

50,698‌

1,001‌

Andersons 

7,300‌

362‌

BJ's

Wholesale

Club

Holdings (1)

19,898‌

1,748‌

Casey's

General

Stores 

5,089‌

1,942‌

Chefs'

Warehouse (1)

6,300‌

246‌

Grocery

Outlet

Holding (1)

12,632‌

279‌

Ingles

Markets,

Class

A 

3,900‌

268‌

Performance

Food

Group (1)

20,452‌

1,352‌

PriceSmart 

3,450‌

280‌

SpartanNash 

10,226‌

192‌

Sprouts

Farmers

Market (1)

13,000‌

1,088‌

U.S.

Foods

Holding (1)

30,344‌

1,608‌

United

Natural

Foods (1)

9,300‌

122‌

10,488‌

Food

Products

 0.8%

B&G

Foods (2)

15,400‌

124‌

Calavo

Growers 

7,863‌

179‌

Cal-Maine

Foods 

5,564‌

340‌

Darling

Ingredients (1)

26,700‌

981‌

Flowers

Foods 

33,083‌

734‌

Fresh

Del

Monte

Produce 

8,200‌

179‌

Freshpet (1)

5,850‌

757‌

Hain

Celestial

Group (1)

17,000‌

118‌

Ingredion 

8,500‌

975‌

J

&

J

Snack

Foods 

2,749‌

446‌

John

B.

Sanfilippo

&

Son 

2,942‌

286‌

Lancaster

Colony 

2,425‌

458‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

12

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Post

Holdings (1)

7,517‌

783‌

Simply

Good

Foods (1)

14,840‌

536‌

TreeHouse

Foods (1)

7,943‌

291‌

Utz

Brands 

15,300‌

255‌

Vital

Farms (1)

2,500‌

117‌

7,559‌

Household

Products

 0.2%

Central

Garden

&

Pet (1)(2)

3,185‌

123‌

Central

Garden

&

Pet,

Class

A (1)

10,671‌

352‌

Energizer

Holdings 

9,250‌

273‌

Spectrum

Brands

Holdings 

5,011‌

431‌

WD-40 

2,200‌

483‌

1,662‌

Personal

Care

Products

 0.5%

Beauty

Health (1)(2)

21,638‌

42‌

BellRing

Brands (1)

18,509‌

1,058‌

Coty,

Class

A (1)

40,849‌

409‌

Edgewell

Personal

Care 

8,050‌

323‌

elf

Beauty (1)

8,399‌

1,770‌

Herbalife (1)

15,900‌

165‌

Inter

Parfums 

3,300‌

383‌

Lifevantage 

20,700‌

133‌

Medifast 

4,946‌

108‌

Nu

Skin

Enterprises,

Class

A 

15,316‌

161‌

USANA

Health

Sciences (1)

2,600‌

118‌

4,670‌

Tobacco

 0.0%

22nd

Century

Group (1)(2)

399‌

—‌

Universal 

3,808‌

183‌

Vector

Group 

22,482‌

238‌

421‌

Total

Consumer

Staples

27,541‌

ENERGY

 4.8%

Energy

Equipment

&

Services

 1.3%

Archrock 

21,867‌

442‌

Atlas

Energy

Solutions 

11,932‌

238‌

Cactus,

Class

A 

9,410‌

496‌

ChampionX 

26,100‌

867‌

DMC

Global (1)

8,000‌

115‌

Expro

Group

Holdings (1)

21,433‌

491‌

Forum

Energy

Technologies (1)

3,999‌

68‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

13

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Helix

Energy

Solutions

Group (1)

15,300‌

183‌

Helmerich

&

Payne 

13,977‌

505‌

Liberty

Energy 

23,967‌

501‌

Mammoth

Energy

Services (1)

18,000‌

59‌

Nabors

Industries (1)

1,900‌

135‌

Newpark

Resources (1)

12,576‌

105‌

Noble 

19,762‌

882‌

NOV 

49,575‌

942‌

Oceaneering

International (1)

15,825‌

374‌

Patterson-UTI

Energy 

48,226‌

500‌

Solaris

Oilfield

Infrastructure,

Class

A 

18,562‌

159‌

TechnipFMC 

70,699‌

1,849‌

TETRA

Technologies (1)

30,241‌

105‌

Tidewater (1)

9,466‌

901‌

Transocean (1)(2)

105,600‌

565‌

Valaris (1)

7,900‌

589‌

Weatherford

International (1)

12,629‌

1,546‌

12,617‌

Oil,

Gas

&

Consumable

Fuels

 3.5%

Adams

Resources

&

Energy 

4,341‌

122‌

Antero

Midstream 

41,300‌

609‌

Antero

Resources (1)

40,961‌

1,337‌

California

Resources 

11,200‌

596‌

Centrus

Energy,

Class

A (1)

2,500‌

107‌

Cheniere

Energy 

33,163‌

5,798‌

Chesapeake

Energy 

18,771‌

1,543‌

Chord

Energy 

7,696‌

1,290‌

Civitas

Resources 

10,748‌

742‌

CNX

Resources (1)

25,800‌

627‌

Comstock

Resources (2)

14,200‌

147‌

CONSOL

Energy 

4,700‌

480‌

Crescent

Energy,

Class

A 

15,920‌

189‌

CVR

Energy 

7,000‌

187‌

Delek

U.S.

Holdings 

12,107‌

300‌

Dorian

LPG 

7,169‌

301‌

DT

Midstream 

11,000‌

781‌

Equitrans

Midstream 

47,029‌

610‌

Green

Plains (1)

8,700‌

138‌

Gulfport

Energy (1)

1,661‌

251‌

HF

Sinclair 

21,141‌

1,128‌

International

Seaways 

1,100‌

65‌

Kosmos

Energy (1)

86,775‌

481‌

Magnolia

Oil

&

Gas,

Class

A 

28,971‌

734‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

14

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Matador

Resources 

14,376‌

857‌

Murphy

Oil 

18,740‌

773‌

New

Fortress

Energy (2)

8,200‌

180‌

Northern

Oil

&

Gas 

11,310‌

420‌

Ovintiv 

33,992‌

1,593‌

Par

Pacific

Holdings (1)

6,900‌

174‌

PBF

Energy,

Class

A 

15,403‌

709‌

Peabody

Energy 

17,000‌

376‌

Permian

Resources 

78,843‌

1,273‌

Range

Resources 

36,100‌

1,210‌

REX

American

Resources (1)

6,150‌

280‌

Ring

Energy (1)(2)

95,600‌

162‌

SandRidge

Energy 

15,785‌

204‌

Sitio

Royalties,

Class

A 

12,500‌

295‌

SM

Energy 

20,300‌

878‌

Southwestern

Energy (1)

184,944‌

1,245‌

Talos

Energy (1)

14,800‌

180‌

Tellurian (1)

192,400‌

133‌

Texas

Pacific

Land 

2,388‌

1,753‌

Uranium

Energy (1)

59,300‌

356‌

Viper

Energy 

16,796‌

630‌

Vitesse

Energy 

6,283‌

149‌

World

Kinect 

15,300‌

395‌

32,788‌

Total

Energy

45,405‌

FINANCIALS

 17.0%

Banks

 5.4%

1st

Source 

5,161‌

277‌

Ameris

Bancorp 

10,100‌

509‌

Arrow

Financial 

9,910‌

258‌

Associated

Banc-Corp 

28,827‌

610‌

Atlantic

Union

Bankshares 

14,747‌

484‌

Axos

Financial (1)

8,400‌

480‌

Banc

of

California 

22,247‌

284‌

BancFirst 

2,817‌

247‌

Bancorp (1)

13,261‌

501‌

Bank

of

Hawaii (2)

5,166‌

296‌

Bank

OZK 

17,134‌

703‌

BankUnited 

16,018‌

469‌

Banner 

4,471‌

222‌

Berkshire

Hills

Bancorp 

10,741‌

245‌

BOK

Financial 

4,060‌

372‌

Brookline

Bancorp 

22,331‌

186‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

15

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Cadence

Bank 

20,859‌

590‌

Capitol

Federal

Financial 

20,644‌

113‌

Cathay

General

Bancorp 

7,294‌

275‌

City

Holding 

2,357‌

250‌

Columbia

Banking

System 

29,099‌

579‌

Comerica 

14,903‌

761‌

Commerce

Bancshares 

17,014‌

949‌

Community

Financial

System 

9,628‌

455‌

ConnectOne

Bancorp 

11,183‌

211‌

Cullen/Frost

Bankers 

8,450‌

859‌

CVB

Financial 

26,706‌

460‌

Dime

Community

Bancshares 

8,900‌

182‌

East

West

Bancorp 

23,464‌

1,718‌

Eastern

Bankshares 

29,000‌

405‌

Enterprise

Financial

Services 

4,053‌

166‌

First

Bancorp

North

Carolina 

8,913‌

285‌

First

BanCorp

Puerto

Rico 

37,849‌

692‌

First

Busey 

13,229‌

320‌

First

Citizens

BancShares,

Class

A 

1,692‌

2,849‌

First

Commonwealth

Financial 

17,900‌

247‌

First

Community

Bankshares 

7,844‌

289‌

First

Financial 

6,317‌

233‌

First

Financial

Bancorp 

13,000‌

289‌

First

Financial

Bankshares 

23,176‌

684‌

First

Hawaiian 

14,900‌

309‌

First

Horizon 

73,206‌

1,154‌

First

Interstate

BancSystem,

Class

A 

12,942‌

359‌

First

Merchants 

11,013‌

367‌

First

United 

9,111‌

186‌

Flushing

Financial 

19,125‌

252‌

FNB 

38,250‌

523‌

Fulton

Financial 

28,682‌

487‌

German

American

Bancorp 

9,733‌

344‌

Glacier

Bancorp 

15,512‌

579‌

Hancock

Whitney 

12,400‌

593‌

Hilltop

Holdings 

6,936‌

217‌

Home

BancShares 

28,776‌

690‌

HomeStreet 

8,965‌

102‌

Hope

Bancorp 

25,700‌

276‌

Independent

Bank 

6,690‌

339‌

Independent

Bank

Group 

3,600‌

164‌

International

Bancshares 

8,002‌

458‌

Kearny

Financial 

29,937‌

184‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

16

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Lakeland

Financial 

3,457‌

213‌

Live

Oak

Bancshares 

6,400‌

224‌

Macatawa

Bank 

10,454‌

153‌

MVB

Financial 

11,116‌

207‌

National

Bank

Holdings,

Class

A 

9,000‌

351‌

NBT

Bancorp 

6,411‌

248‌

New

York

Community

Bancorp (2)

90,533‌

292‌

Nicolet

Bankshares 

3,400‌

282‌

Northrim

BanCorp 

4,567‌

263‌

Northwest

Bancshares 

24,083‌

278‌

OceanFirst

Financial 

16,200‌

257‌

OFG

Bancorp 

12,892‌

483‌

Old

National

Bancorp 

29,748‌

511‌

Pacific

Premier

Bancorp 

15,900‌

365‌

Park

National 

2,440‌

347‌

Peapack-Gladstone

Financial 

6,557‌

149‌

Peoples

Bancorp 

9,913‌

297‌

Pinnacle

Financial

Partners 

8,960‌

717‌

Popular 

13,376‌

1,183‌

Preferred

Bank 

3,072‌

232‌

Prosperity

Bancshares 

12,760‌

780‌

Provident

Bancorp (1)

17,600‌

179‌

Provident

Financial

Services 

16,823‌

241‌

Renasant 

10,652‌

325‌

S&T

Bancorp 

9,220‌

308‌

Sandy

Spring

Bancorp 

11,930‌

291‌

Seacoast

Banking 

11,639‌

275‌

ServisFirst

Bancshares 

8,300‌

525‌

Simmons

First

National,

Class

A 

17,010‌

299‌

Southside

Bancshares 

8,690‌

240‌

SouthState 

8,826‌

675‌

Stock

Yards

Bancorp 

7,181‌

357‌

Synovus

Financial 

23,084‌

928‌

Texas

Capital

Bancshares (1)

9,000‌

550‌

Tompkins

Financial 

4,323‌

211‌

Towne

Bank 

15,200‌

415‌

TriCo

Bancshares 

7,900‌

313‌

Triumph

Financial (1)

1,465‌

120‌

TrustCo

Bank 

7,232‌

208‌

Trustmark 

13,000‌

391‌

UMB

Financial 

7,312‌

610‌

United

Bankshares 

22,100‌

717‌

United

Community

Banks 

16,196‌

412‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

17

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Univest

Financial 

13,342‌

305‌

Valley

National

Bancorp 

45,300‌

316‌

Veritex

Holdings 

9,000‌

190‌

WaFd 

5,368‌

153‌

Washington

Trust

Bancorp 

5,962‌

163‌

Webster

Financial 

30,163‌

1,315‌

WesBanco 

14,042‌

392‌

West

BanCorp 

13,222‌

237‌

Westamerica

BanCorp 

5,346‌

259‌

Western

Alliance

Bancorp 

19,665‌

1,235‌

Western

New

England

Bancorp 

27,519‌

189‌

Wintrust

Financial 

6,938‌

684‌

WSFS

Financial 

8,550‌

402‌

Zions

Bancorp 

21,207‌

920‌

50,769‌

Capital

Markets

 3.7%

Affiliated

Managers

Group 

3,700‌

578‌

Ares

Management,

Class

A 

26,109‌

3,480‌

Artisan

Partners

Asset

Management,

Class

A 

9,800‌

404‌

BGC

Group,

Class

A 

49,400‌

410‌

Blue

Owl

Capital 

63,261‌

1,123‌

Carlyle

Group 

28,414‌

1,141‌

Cohen

&

Steers 

3,200‌

232‌

Coinbase

Global,

Class

A (1)

25,996‌

5,777‌

Donnelley

Financial

Solutions (1)

5,175‌

308‌

Evercore,

Class

A 

5,494‌

1,145‌

Federated

Hermes 

14,500‌

477‌

Hamilton

Lane,

Class

A 

5,200‌

643‌

Houlihan

Lokey 

7,315‌

986‌

Interactive

Brokers

Group,

Class

A 

13,466‌

1,651‌

Janus

Henderson

Group 

19,423‌

655‌

Jefferies

Financial

Group 

23,247‌

1,157‌

Lazard 

20,500‌

783‌

LPL

Financial

Holdings 

11,543‌

3,224‌

Moelis,

Class

A 

6,390‌

363‌

Morningstar 

4,590‌

1,358‌

Open

Lending (1)

37,046‌

207‌

Piper

Sandler 

2,550‌

587‌

PJT

Partners,

Class

A 

4,800‌

518‌

Robinhood

Markets,

Class

A (1)

72,354‌

1,643‌

SEI

Investments 

10,783‌

697‌

StepStone

Group,

Class

A 

10,977‌

504‌

Stifel

Financial 

12,729‌

1,071‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

18

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

StoneX

Group (1)

6,721‌

506‌

TPG 

8,900‌

369‌

Tradeweb

Markets,

Class

A 

18,878‌

2,001‌

Victory

Capital

Holdings,

Class

A 

955‌

46‌

Virtu

Financial,

Class

A 

14,596‌

328‌

Virtus

Investment

Partners 

2,122‌

479‌

WisdomTree 

25,737‌

255‌

35,106‌

Consumer

Finance

 0.8%

Ally

Financial 

39,989‌

1,586‌

Bread

Financial

Holdings 

6,900‌

308‌

Credit

Acceptance (1)

900‌

463‌

Encore

Capital

Group (1)

5,000‌

209‌

Enova

International (1)

3,339‌

208‌

EZCORP,

Class

A (1)

24,495‌

257‌

FirstCash

Holdings 

4,338‌

455‌

Green

Dot,

Class

A (1)

13,100‌

124‌

Navient 

20,000‌

291‌

Nelnet,

Class

A 

510‌

51‌

NerdWallet,

Class

A (1)

10,979‌

160‌

OneMain

Holdings 

20,198‌

979‌

PRA

Group (1)

6,206‌

122‌

PROG

Holdings 

8,935‌

310‌

SLM 

40,500‌

842‌

SoFi

Technologies (1)(2)

130,728‌

864‌

Upstart

Holdings (1)(2)

10,000‌

236‌

7,465‌

Financial

Services

 3.3%

Affirm

Holdings (1)

34,014‌

1,028‌

Apollo

Global

Management 

63,407‌

7,486‌

AvidXchange

Holdings (1)

21,900‌

264‌

Block (1)

78,099‌

5,037‌

Cannae

Holdings 

9,900‌

180‌

Corebridge

Financial 

43,072‌

1,254‌

Equitable

Holdings 

51,250‌

2,094‌

Essent

Group 

16,807‌

944‌

Euronet

Worldwide (1)

6,189‌

641‌

EVERTEC 

12,778‌

425‌

Federal

Agricultural

Mortgage,

Class

C 

1,802‌

326‌

Flywire (1)

12,229‌

200‌

Hannon

Armstrong

Sustainable

Infrastructure

Capital (2)

16,476‌

488‌

Jackson

Financial,

Class

A 

7,779‌

578‌

Marqeta,

Class

A (1)

69,400‌

380‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

19

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

MGIC

Investment 

32,097‌

692‌

Mr

Cooper

Group (1)

8,885‌

722‌

NCR

Atleos (1)

4,660‌

126‌

NMI

Holdings,

Class

A (1)

5,811‌

198‌

Onity

Group (1)

4,762‌

114‌

Payoneer

Global (1)

85,916‌

476‌

PennyMac

Financial

Services 

4,095‌

387‌

Radian

Group 

18,312‌

569‌

Remitly

Global (1)

17,960‌

218‌

Rocket,

Class

A (1)

15,600‌

214‌

Shift4

Payments,

Class

A (1)(2)

8,730‌

640‌

Toast,

Class

A (1)

54,558‌

1,406‌

Voya

Financial 

17,448‌

1,241‌

Walker

&

Dunlop 

5,000‌

491‌

Western

Union 

64,001‌

782‌

WEX (1)

5,189‌

919‌

30,520‌

Insurance

 3.0%

Ambac

Financial

Group (1)

14,700‌

188‌

American

Financial

Group 

8,910‌

1,096‌

Assured

Guaranty 

8,871‌

684‌

Axis

Capital

Holdings 

15,073‌

1,065‌

Baldwin

Insurance

Group (1)

9,386‌

333‌

Brighthouse

Financial (1)

9,300‌

403‌

CNA

Financial 

2,018‌

93‌

CNO

Financial

Group 

18,700‌

518‌

eHealth (1)

9,700‌

44‌

Enstar

Group (1)

2,200‌

673‌

Erie

Indemnity,

Class

A 

3,407‌

1,235‌

Fidelity

National

Financial 

36,131‌

1,786‌

First

American

Financial 

14,430‌

778‌

Genworth

Financial (1)

79,292‌

479‌

Hanover

Insurance

Group 

7,123‌

894‌

Hippo

Holdings (1)

8,200‌

141‌

Horace

Mann

Educators 

7,210‌

235‌

James

River

Group

Holdings 

19,500‌

151‌

Kemper 

10,148‌

602‌

Kinsale

Capital

Group 

3,151‌

1,214‌

Lemonade (1)(2)

10,100‌

167‌

Lincoln

National 

16,385‌

510‌

Markel

Group (1)

1,725‌

2,718‌

MBIA 

13,200‌

72‌

Mercury

General 

5,600‌

298‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

20

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

National

Western

Life

Group,

Class

A 

306‌

152‌

Old

Republic

International 

32,787‌

1,013‌

Oscar

Health,

Class

A (1)

25,468‌

403‌

Palomar

Holdings (1)

6,096‌

495‌

Primerica 

4,913‌

1,162‌

ProAssurance (1)

13,640‌

167‌

Reinsurance

Group

of

America 

7,820‌

1,605‌

RenaissanceRe

Holdings 

8,270‌

1,848‌

RLI 

4,111‌

578‌

Root,

Class

A (1)

2,405‌

124‌

Ryan

Specialty

Holdings 

14,659‌

849‌

Safety

Insurance

Group 

3,486‌

262‌

Selective

Insurance

Group 

8,670‌

813‌

Skyward

Specialty

Insurance

Group (1)

5,928‌

214‌

Stewart

Information

Services 

4,480‌

278‌

United

Fire

Group 

8,838‌

190‌

Unum

Group 

18,900‌

966‌

White

Mountains

Insurance

Group 

308‌

560‌

28,056‌

Mortgage

Real

Estate

Investment

Trusts

 0.8%

ACRES

Commercial

Realty,

REIT (1)(2)

16,332‌

208‌

AGNC

Investment,

REIT (2)

80,709‌

770‌

Annaly

Capital

Management,

REIT 

68,230‌

1,300‌

Apollo

Commercial

Real

Estate

Finance,

REIT 

8,500‌

83‌

Arbor

Realty

Trust,

REIT (2)

15,343‌

220‌

Ares

Commercial

Real

Estate,

REIT (2)

23,100‌

154‌

ARMOUR

Residential

REIT,

REIT 

4,100‌

79‌

Blackstone

Mortgage

Trust,

Class

A,

REIT 

16,827‌

293‌

BrightSpire

Capital,

REIT 

31,500‌

180‌

Cherry

Hill

Mortgage

Investment,

REIT (2)

44,762‌

162‌

Chimera

Investment,

REIT 

12,033‌

154‌

Claros

Mortgage

Trust 

22,453‌

180‌

Ellington

Financial,

REIT (2)

14,005‌

169‌

Invesco

Mortgage

Capital,

REIT (2)

9,260‌

87‌

Ladder

Capital,

REIT 

27,500‌

310‌

MFA

Financial,

REIT 

28,122‌

299‌

PennyMac

Mortgage

Investment

Trust,

REIT 

21,600‌

297‌

Ready

Capital,

REIT 

13,636‌

112‌

Redwood

Trust,

REIT 

33,367‌

217‌

Rithm

Capital,

REIT 

68,610‌

749‌

Starwood

Property

Trust,

REIT 

43,800‌

830‌

TPG

RE

Finance

Trust,

REIT 

26,100‌

226‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

21

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Two

Harbors

Investment,

REIT 

13,200‌

174‌

7,253‌

Total

Financials

159,169‌

HEALTH

CARE

 12.1%

Biotechnology

 5.6%

4D

Molecular

Therapeutics (1)

5,689‌

119‌

89bio (1)

8,700‌

70‌

Aadi

Bioscience (1)

6,779‌

10‌

ACADIA

Pharmaceuticals (1)

20,210‌

328‌

Adamas

Pharmaceuticals,

CVR (1)(3)

26,000‌

3‌

Adamas

Pharmaceuticals,

CVR (1)(3)

26,000‌

—‌

ADMA

Biologics (1)

30,593‌

342‌

Agenus (1)

8,170‌

137‌

Agios

Pharmaceuticals (1)

10,100‌

436‌

Akero

Therapeutics (1)

13,875‌

326‌

Aldeyra

Therapeutics (1)

7,591‌

25‌

Alector (1)

13,300‌

60‌

Alkermes (1)

31,457‌

758‌

Alnylam

Pharmaceuticals (1)

17,808‌

4,327‌

Amicus

Therapeutics (1)

39,500‌

392‌

Anavex

Life

Sciences (1)(2)

13,100‌

55‌

Annovis

Bio (1)(2)

4,800‌

28‌

Apellis

Pharmaceuticals (1)

15,510‌

595‌

Apogee

Therapeutics (1)

5,224‌

206‌

Arcellx (1)

4,643‌

256‌

Arcturus

Therapeutics

Holdings (1)

4,800‌

117‌

Arcus

Biosciences (1)

9,900‌

151‌

Ardelyx (1)

29,400‌

218‌

Arrowhead

Pharmaceuticals (1)

16,000‌

416‌

Atara

Biotherapeutics (1)

1,364‌

12‌

Avid

Bioservices (1)

12,400‌

89‌

Avidity

Biosciences (1)

19,234‌

786‌

Beam

Therapeutics (1)(2)

8,846‌

207‌

BioCryst

Pharmaceuticals (1)

40,475‌

250‌

Biohaven (1)

12,164‌

422‌

BioMarin

Pharmaceutical (1)

26,731‌

2,201‌

Biomea

Fusion (1)

5,500‌

25‌

Blueprint

Medicines (1)

10,500‌

1,132‌

Bridgebio

Pharma (1)

17,205‌

436‌

C4

Therapeutics (1)(2)

12,400‌

57‌

Cabaletta

Bio (1)

7,400‌

55‌

CareDx (1)

14,500‌

225‌

Cargo

Therapeutics (1)

5,973‌

98‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

22

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Catalyst

Pharmaceuticals (1)

14,000‌

217‌

Celldex

Therapeutics (1)

11,125‌

412‌

CEL-SCI (1)(2)

26,800‌

31‌

Cerevel

Therapeutics

Holdings (1)

12,824‌

524‌

CG

oncology (1)

4,156‌

131‌

Cogent

Biosciences (1)

11,400‌

96‌

Corbus

Pharmaceuticals

Holdings (1)

3,672‌

166‌

Crinetics

Pharmaceuticals (1)

12,342‌

553‌

CRISPR

Therapeutics (1)(2)

10,118‌

546‌

Cullinan

Therapeutics (1)

8,484‌

148‌

Curis (1)(2)

3,675‌

25‌

Cytokinetics (1)

15,257‌

827‌

Day

One

Biopharmaceuticals (1)

17,862‌

246‌

Denali

Therapeutics (1)

20,345‌

472‌

Disc

Medicine (1)

3,324‌

150‌

Dynavax

Technologies (1)

22,800‌

256‌

Dyne

Therapeutics (1)

13,048‌

460‌

Editas

Medicine (1)

12,600‌

59‌

Emergent

BioSolutions (1)

7,800‌

53‌

Entrada

Therapeutics (1)

8,620‌

123‌

Exact

Sciences (1)

25,081‌

1,060‌

Exelixis (1)

46,490‌

1,045‌

FibroGen (1)(2)

52,400‌

47‌

G1

Therapeutics (1)(2)

17,755‌

40‌

Generation

Bio (1)

39,365‌

111‌

Geron (1)

59,300‌

251‌

GRAIL (1)

3,487‌

54‌

Gritstone

bio (1)

26,900‌

17‌

Halozyme

Therapeutics (1)

18,562‌

972‌

Ideaya

Biosciences (1)

11,722‌

412‌

IGM

Biosciences (1)(2)

12,085‌

83‌

Immunome (1)

13,779‌

167‌

Immunovant (1)(2)

10,513‌

278‌

Insmed (1)

25,421‌

1,703‌

Intellia

Therapeutics (1)

14,567‌

326‌

Ionis

Pharmaceuticals (1)

24,749‌

1,180‌

Iovance

Biotherapeutics (1)

38,034‌

305‌

Ironwood

Pharmaceuticals (1)

17,120‌

112‌

Janux

Therapeutics (1)

4,474‌

187‌

KalVista

Pharmaceuticals (1)(2)

13,200‌

155‌

Karyopharm

Therapeutics (1)

26,700‌

23‌

Keros

Therapeutics (1)

4,300‌

197‌

Krystal

Biotech (1)

3,966‌

728‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

23

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Kymera

Therapeutics (1)

10,400‌

310‌

Kyverna

Therapeutics (1)

3,777‌

28‌

Lexicon

Pharmaceuticals (1)

40,600‌

68‌

Lineage

Cell

Therapeutics (1)(2)

119,700‌

119‌

Lyell

Immunopharma (1)(2)

67,158‌

97‌

Madrigal

Pharmaceuticals (1)(2)

2,677‌

750‌

MannKind (1)

46,400‌

242‌

Mersana

Therapeutics (1)

18,800‌

38‌

Mirum

Pharmaceuticals (1)

5,350‌

183‌

Monte

Rosa

Therapeutics (1)

12,945‌

48‌

Morphic

Holding (1)

8,613‌

293‌

Mural

Oncology (1)

9,695‌

30‌

Myriad

Genetics (1)

14,280‌

349‌

Natera (1)

15,400‌

1,668‌

Neurocrine

Biosciences (1)

15,102‌

2,079‌

Novavax (1)

3,957‌

50‌

Nurix

Therapeutics (1)

11,800‌

246‌

Nuvalent,

Class

A (1)

5,355‌

406‌

Olema

Pharmaceuticals (1)

9,400‌

102‌

PMV

Pharmaceuticals (1)

33,600‌

54‌

Praxis

Precision

Medicines (1)

3,147‌

130‌

Precigen (1)(2)

70,000‌

111‌

Protagonist

Therapeutics (1)

8,000‌

277‌

Prothena (1)

9,118‌

188‌

PTC

Therapeutics (1)

11,200‌

343‌

Recursion

Pharmaceuticals,

Class

A (1)(2)

22,400‌

168‌

REGENXBIO (1)

6,421‌

75‌

Relay

Therapeutics (1)

26,057‌

170‌

Replimune

Group (1)

23,934‌

215‌

REVOLUTION

Medicines (1)

22,487‌

873‌

Rhythm

Pharmaceuticals (1)

7,300‌

300‌

Rigel

Pharmaceuticals (1)

6,350‌

52‌

Rocket

Pharmaceuticals (1)

14,196‌

306‌

Roivant

Sciences (1)

61,003‌

645‌

Sage

Therapeutics (1)

9,969‌

108‌

Sana

Biotechnology (1)(2)

22,300‌

122‌

Sangamo

Therapeutics (1)

144,100‌

52‌

Sarepta

Therapeutics (1)

12,416‌

1,962‌

Scholar

Rock

Holding (1)(2)

20,334‌

169‌

Shattuck

Labs (1)(2)

19,300‌

75‌

Soleno

Therapeutics (1)

5,287‌

216‌

SpringWorks

Therapeutics (1)

12,008‌

452‌

Spyre

Therapeutics (1)

5,912‌

139‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

24

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Summit

Therapeutics (1)

23,388‌

182‌

Syndax

Pharmaceuticals (1)

9,600‌

197‌

Syros

Pharmaceuticals (1)

22,550‌

116‌

Tenaya

Therapeutics (1)

46,502‌

144‌

TG

Therapeutics (1)

20,100‌

358‌

Travere

Therapeutics (1)

10,200‌

84‌

Twist

Bioscience (1)

6,813‌

336‌

Ultragenyx

Pharmaceutical (1)

14,007‌

576‌

United

Therapeutics (1)

6,500‌

2,071‌

Vaxcyte (1)

15,288‌

1,154‌

Vera

Therapeutics (1)

9,827‌

356‌

Veracyte (1)

8,500‌

184‌

Vericel (1)

5,805‌

266‌

Verve

Therapeutics (1)

6,600‌

32‌

Viking

Therapeutics (1)

14,900‌

790‌

Vir

Biotechnology (1)

15,400‌

137‌

Viridian

Therapeutics (1)

7,900‌

103‌

Voyager

Therapeutics (1)

8,900‌

70‌

Xencor (1)

13,824‌

262‌

XOMA (1)

6,534‌

155‌

Zentalis

Pharmaceuticals (1)

11,476‌

47‌

52,246‌

Health

Care

Equipment

&

Supplies

 1.9%

Artivion (1)

11,550‌

296‌

AtriCure (1)

9,700‌

221‌

Avanos

Medical (1)

9,042‌

180‌

Axonics (1)

6,400‌

430‌

Butterfly

Network (1)

83,400‌

70‌

Cerus (1)(2)

58,800‌

104‌

ClearPoint

Neuro (1)

17,700‌

95‌

CONMED 

4,950‌

343‌

DENTSPLY

SIRONA 

34,860‌

868‌

Embecta 

9,800‌

123‌

Enovis (1)

8,690‌

393‌

Envista

Holdings (1)

23,543‌

392‌

Glaukos (1)

7,500‌

888‌

Globus

Medical,

Class

A (1)

16,900‌

1,157‌

Haemonetics (1)

6,800‌

563‌

ICU

Medical (1)

2,000‌

238‌

Inari

Medical (1)

7,972‌

384‌

Inogen (1)

17,500‌

142‌

Inspire

Medical

Systems (1)

4,500‌

602‌

Integer

Holdings (1)

3,850‌

446‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

25

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Integra

LifeSciences

Holdings (1)

9,900‌

289‌

iRhythm

Technologies (1)

4,836‌

521‌

Lantheus

Holdings (1)

11,520‌

925‌

LeMaitre

Vascular 

2,834‌

233‌

LivaNova (1)

6,500‌

356‌

Masimo (1)

6,300‌

793‌

Merit

Medical

Systems (1)

9,100‌

782‌

Neogen (1)

32,132‌

502‌

Nevro (1)

7,746‌

65‌

Novocure (1)

16,528‌

283‌

Omnicell (1)

7,612‌

206‌

OraSure

Technologies (1)

20,282‌

86‌

Orchestra

BioMed

Holdings (1)

7,551‌

62‌

Orthofix

Medical (1)

11,780‌

156‌

Outset

Medical (1)(2)

30,300‌

117‌

Penumbra (1)

6,285‌

1,131‌

PROCEPT

BioRobotics (1)

6,153‌

376‌

Pulmonx (1)

11,500‌

73‌

QuidelOrtho (1)

6,900‌

229‌

Silk

Road

Medical (1)

10,000‌

270‌

STAAR

Surgical (1)

7,700‌

367‌

Tactile

Systems

Technology (1)

7,950‌

95‌

Tandem

Diabetes

Care (1)

11,300‌

455‌

TransMedics

Group (1)

4,600‌

693‌

UFP

Technologies (1)

1,001‌

264‌

Zimvie (1)

7,400‌

135‌

17,399‌

Health

Care

Providers

&

Services

 1.8%

Acadia

Healthcare (1)

12,048‌

814‌

AdaptHealth (1)

11,800‌

118‌

Addus

HomeCare (1)

2,305‌

268‌

agilon

health (1)(2)

28,824‌

188‌

Alignment

Healthcare (1)

20,500‌

160‌

Amedisys (1)

3,695‌

339‌

AMN

Healthcare

Services (1)

6,505‌

333‌

Astrana

Health (1)

7,600‌

308‌

Aveanna

Healthcare

Holdings (1)

61,400‌

169‌

BrightSpring

Health

Services (1)

12,891‌

146‌

Brookdale

Senior

Living (1)

24,407‌

167‌

CareMax (1)

1,034‌

3‌

Castle

Biosciences (1)

4,600‌

100‌

Chemed 

2,063‌

1,119‌

Community

Health

Systems (1)

24,200‌

81‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

26

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

CorVel (1)

2,150‌

547‌

Cross

Country

Healthcare (1)

6,800‌

94‌

DocGo (1)(2)

24,500‌

76‌

Encompass

Health 

13,400‌

1,150‌

Enhabit (1)

11,500‌

103‌

Ensign

Group 

8,144‌

1,007‌

Guardant

Health (1)

16,600‌

479‌

HealthEquity (1)

12,700‌

1,095‌

Hims

&

Hers

Health (1)

18,977‌

383‌

LifeStance

Health

Group (1)

11,800‌

58‌

ModivCare (1)

5,300‌

139‌

National

HealthCare 

1,905‌

206‌

National

Research 

8,572‌

197‌

NeoGenomics (1)

18,155‌

252‌

OPKO

Health (1)(2)

101,686‌

127‌

Option

Care

Health (1)

22,835‌

632‌

Owens

&

Minor (1)

12,100‌

163‌

Patterson 

11,719‌

283‌

Pediatrix

Medical

Group (1)

17,700‌

134‌

Pennant

Group (1)

10,850‌

252‌

Premier,

Class

A 

13,480‌

252‌

Privia

Health

Group (1)

12,700‌

221‌

Progyny (1)

11,600‌

332‌

R1

RCM (1)

22,100‌

278‌

RadNet (1)

8,652‌

510‌

Select

Medical

Holdings 

23,479‌

823‌

Surgery

Partners (1)

10,700‌

255‌

Tenet

Healthcare (1)

16,488‌

2,193‌

16,554‌

Health

Care

Technology

 0.6%

CareCloud (1)

23,700‌

46‌

Certara (1)

13,900‌

193‌

Doximity,

Class

A (1)

15,002‌

420‌

Evolent

Health,

Class

A (1)

14,300‌

273‌

Health

Catalyst (1)

16,500‌

105‌

HealthStream 

9,300‌

259‌

Multiplan (1)

62,700‌

24‌

Phreesia (1)

10,300‌

218‌

Schrodinger (1)

8,800‌

170‌

Sharecare (1)

87,200‌

118‌

Teladoc

Health (1)

20,962‌

205‌

Veeva

Systems,

Class

A (1)

20,477‌

3,748‌

5,779‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

27

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Life

Sciences

Tools

&

Services

 1.0%

10X

Genomics,

Class

A (1)

18,921‌

368‌

Avantor (1)

98,635‌

2,091‌

Azenta (1)

6,334‌

333‌

BioLife

Solutions (1)

5,100‌

109‌

Bruker 

11,755‌

750‌

Fortrea

Holdings (1)

10,900‌

254‌

Illumina (1)

20,920‌

2,184‌

Medpace

Holdings (1)

3,416‌

1,407‌

Mesa

Laboratories 

1,400‌

122‌

Omniab,

Earn

Out

Shares

$12.50 (1)

525‌

—‌

Omniab,

Earn

Out

Shares

$15.00 (1)

525‌

—‌

Pacific

Biosciences

of

California (1)(2)

65,366‌

90‌

Personalis (1)(2)

37,100‌

43‌

Quanterix (1)

7,200‌

95‌

Quantum-Si (1)(2)

30,000‌

32‌

Repligen (1)

9,306‌

1,173‌

Sotera

Health (1)

12,200‌

145‌

9,196‌

Pharmaceuticals

 1.2%

Aclaris

Therapeutics (1)

42,500‌

47‌

Alto

Neuroscience (1)

5,346‌

57‌

Amphastar

Pharmaceuticals (1)

5,290‌

212‌

Amylyx

Pharmaceuticals (1)

15,900‌

30‌

Arvinas (1)

13,120‌

349‌

Atea

Pharmaceuticals (1)

44,100‌

146‌

Axsome

Therapeutics (1)

5,400‌

435‌

Cassava

Sciences (1)(2)

6,600‌

82‌

Collegium

Pharmaceutical (1)

9,900‌

319‌

Corcept

Therapeutics (1)

8,743‌

284‌

Elanco

Animal

Health (1)

80,973‌

1,168‌

Evolus (1)

15,500‌

168‌

EyePoint

Pharmaceuticals (1)(2)

16,926‌

147‌

Harmony

Biosciences

Holdings (1)

5,000‌

151‌

Harrow (1)(2)

7,600‌

159‌

Innoviva (1)

17,400‌

285‌

Intra-Cellular

Therapies (1)

13,192‌

904‌

Jazz

Pharmaceuticals (1)

7,500‌

800‌

Ligand

Pharmaceuticals (1)

2,686‌

226‌

Longboard

Pharmaceuticals (1)

8,400‌

227‌

Nuvation

Bio (1)

69,100‌

202‌

Ocular

Therapeutix (1)(2)

37,180‌

254‌

Organon 

28,787‌

596‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

28

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Pacira

BioSciences (1)

10,400‌

298‌

Perrigo 

18,403‌

473‌

Phibro

Animal

Health,

Class

A 

9,514‌

160‌

Pliant

Therapeutics (1)(2)

22,518‌

242‌

Prestige

Consumer

Healthcare (1)

8,571‌

590‌

Revance

Therapeutics (1)

21,100‌

54‌

Royalty

Pharma,

Class

A 

50,812‌

1,340‌

Scilex

Holding (1)(2)

10,602‌

19‌

Supernus

Pharmaceuticals (1)

7,900‌

211‌

Tarsus

Pharmaceuticals (1)

5,359‌

146‌

Terns

Pharmaceuticals (1)

8,300‌

57‌

Ventyx

Biosciences (1)

18,402‌

43‌

WaVe

Life

Sciences (1)

28,911‌

144‌

Xeris

Biopharma

Holdings (1)(2)

3,653‌

8‌

Xeris

Biopharma

Holdings,

CVR (1)(3)

36,100‌

—‌

11,033‌

Total

Health

Care

112,207‌

INDUSTRIALS

&

BUSINESS

SERVICES

 17.7%

Aerospace

&

Defense

 1.3%

AAR (1)

2,355‌

171‌

AeroVironment (1)

3,900‌

711‌

Archer

Aviation,

Class

A (1)(2)

25,500‌

90‌

BWX

Technologies 

13,037‌

1,239‌

Cadre

Holdings 

5,305‌

178‌

Curtiss-Wright 

5,776‌

1,565‌

HEICO 

4,695‌

1,050‌

HEICO,

Class

A 

10,278‌

1,825‌

Hexcel 

10,100‌

631‌

Kratos

Defense

&

Security

Solutions (1)

15,494‌

310‌

Leonardo

DRS (1)

15,751‌

402‌

Loar

Holdings (1)

4,026‌

215‌

Mercury

Systems (1)

7,900‌

213‌

Moog,

Class

A 

3,468‌

580‌

National

Presto

Industries 

2,413‌

181‌

Park

Aerospace 

17,700‌

242‌

Rocket

Lab

USA (1)

35,000‌

168‌

Spirit

AeroSystems

Holdings,

Class

A (1)

23,846‌

784‌

Triumph

Group (1)

20,200‌

311‌

V2X (1)

2,879‌

138‌

Woodward 

8,908‌

1,553‌

12,557‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

29

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Air

Freight

&

Logistics

 0.2%

Air

Transport

Services

Group (1)

12,200‌

169‌

Forward

Air (2)

6,300‌

120‌

GXO

Logistics (1)

16,666‌

842‌

Hub

Group,

Class

A 

10,600‌

456‌

1,587‌

Building

Products

 2.1%

AAON 

9,135‌

797‌

Advanced

Drainage

Systems 

10,200‌

1,636‌

Alpha

Pro

Tech (1)

16,000‌

88‌

Apogee

Enterprises 

3,752‌

236‌

Armstrong

World

Industries 

8,171‌

925‌

AZEK (1)

23,711‌

999‌

AZZ 

4,929‌

381‌

Carlisle 

6,392‌

2,590‌

CSW

Industrials 

2,400‌

637‌

Fortune

Brands

Innovations 

16,665‌

1,082‌

Gibraltar

Industries (1)

6,800‌

466‌

Griffon 

5,800‌

370‌

Hayward

Holdings (1)

15,800‌

194‌

JELD-WEN

Holding (1)

14,000‌

189‌

Lennox

International 

4,403‌

2,355‌

Masterbrand (1)

17,900‌

263‌

Owens

Corning 

12,840‌

2,231‌

Resideo

Technologies (1)

22,644‌

443‌

Simpson

Manufacturing 

5,600‌

944‌

Trex (1)

15,800‌

1,171‌

UFP

Industries 

9,575‌

1,072‌

Zurn

Elkay

Water

Solutions 

19,800‌

582‌

19,651‌

Commercial

Services

&

Supplies

 1.5%

ABM

Industries 

11,150‌

564‌

ACCO

Brands 

30,789‌

145‌

ACV

Auctions,

Class

A (1)

19,300‌

352‌

Brady,

Class

A 

9,500‌

627‌

Brink's 

6,749‌

691‌

Casella

Waste

Systems,

Class

A (1)

9,203‌

913‌

Cimpress (1)

3,500‌

307‌

Clean

Harbors (1)

7,000‌

1,583‌

CoreCivic (1)

24,596‌

319‌

Ennis 

13,291‌

291‌

Enviri (1)

19,160‌

165‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

30

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

GEO

Group (1)

27,395‌

394‌

HNI 

9,310‌

419‌

Interface 

14,400‌

211‌

MillerKnoll 

9,500‌

252‌

Montrose

Environmental

Group (1)

5,100‌

227‌

MSA

Safety 

5,300‌

995‌

OPENLANE (1)

20,400‌

339‌

Pitney

Bowes 

63,200‌

321‌

Quad/Graphics 

25,000‌

136‌

RB

Global 

24,921‌

1,903‌

Stericycle (1)

14,300‌

831‌

Tetra

Tech 

7,150‌

1,462‌

UniFirst 

1,501‌

258‌

Vestis 

16,450‌

201‌

Viad (1)

7,325‌

249‌

14,155‌

Construction

&

Engineering

 1.6%

AECOM 

18,059‌

1,592‌

Ameresco,

Class

A (1)(2)

6,400‌

184‌

API

Group (1)

39,930‌

1,503‌

Arcosa 

6,887‌

574‌

Comfort

Systems

USA 

5,398‌

1,642‌

Construction

Partners,

Class

A (1)

7,161‌

395‌

Dycom

Industries (1)

4,123‌

696‌

EMCOR

Group 

5,791‌

2,114‌

Fluor (1)

20,198‌

880‌

Granite

Construction 

7,114‌

441‌

MasTec (1)

8,950‌

957‌

Matrix

Service (1)

17,911‌

178‌

MDU

Resources

Group 

26,791‌

672‌

MYR

Group (1)

2,200‌

299‌

Primoris

Services 

9,001‌

449‌

Sterling

Infrastructure (1)

4,386‌

519‌

Valmont

Industries 

3,400‌

933‌

WillScot

Mobile

Mini

Holdings (1)

33,237‌

1,251‌

15,279‌

Electrical

Equipment

 1.6%

Acuity

Brands 

4,600‌

1,111‌

American

Superconductor (1)

16,911‌

396‌

Array

Technologies (1)

21,100‌

216‌

Atkore 

6,214‌

838‌

Blink

Charging (1)(2)

26,100‌

71‌

Bloom

Energy,

Class

A (1)(2)

28,400‌

348‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

31

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Encore

Wire 

2,500‌

725‌

Energy

Vault

Holdings (1)(2)

23,500‌

22‌

EnerSys 

4,800‌

497‌

Enovix (1)(2)

19,000‌

294‌

Fluence

Energy (1)(2)

5,900‌

102‌

FTC

Solar (1)

68,100‌

24‌

FuelCell

Energy (1)(2)

122,800‌

78‌

GrafTech

International 

50,500‌

49‌

LSI

Industries 

14,693‌

213‌

NEXTracker,

Class

A (1)

13,555‌

635‌

nVent

Electric 

24,500‌

1,877‌

Plug

Power (1)(2)

76,500‌

178‌

Regal

Rexnord 

8,547‌

1,156‌

Sensata

Technologies

Holding 

21,500‌

804‌

SES

AI (1)(2)

37,900‌

47‌

Shoals

Technologies

Group,

Class

A (1)

24,846‌

155‌

Stem (1)

36,500‌

41‌

SunPower (1)(2)

20,700‌

61‌

Sunrun (1)(2)

30,205‌

358‌

Thermon

Group

Holdings (1)

4,900‌

151‌

Vertiv

Holdings,

Class

A 

51,595‌

4,467‌

Vicor (1)

4,000‌

133‌

15,047‌

Ground

Transportation

 1.0%

ArcBest 

3,500‌

375‌

Avis

Budget

Group 

2,951‌

308‌

Covenant

Logistics

Group 

4,012‌

198‌

Heartland

Express 

17,323‌

214‌

Hertz

Global

Holdings (1)(2)

21,884‌

77‌

Knight-Swift

Transportation

Holdings 

23,292‌

1,163‌

Landstar

System 

5,200‌

959‌

Lyft,

Class

A (1)

44,400‌

626‌

Marten

Transport 

8,800‌

162‌

RXO (1)

15,500‌

405‌

Ryder

System 

5,075‌

629‌

Saia (1)

4,368‌

2,072‌

U-Haul

Holding 

12,600‌

756‌

Werner

Enterprises (2)

7,353‌

264‌

XPO (1)

15,500‌

1,645‌

9,853‌

Machinery

 3.3%

3D

Systems (1)

31,850‌

98‌

AGCO 

8,650‌

847‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

32

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Alamo

Group 

2,700‌

467‌

Albany

International,

Class

A 

5,803‌

490‌

Allison

Transmission

Holdings 

10,330‌

784‌

Astec

Industries 

4,900‌

145‌

Atmus

Filtration

Technologies (1)

12,035‌

346‌

Barnes

Group 

7,600‌

315‌

Blue

Bird (1)

3,295‌

177‌

Chart

Industries (1)(2)

5,751‌

830‌

CNH

Industrial 

125,309‌

1,269‌

Commercial

Vehicle

Group (1)

22,400‌

110‌

Crane 

6,841‌

992‌

Desktop

Metal,

Class

A (1)(2)

11,480‌

47‌

Donaldson 

13,905‌

995‌

Douglas

Dynamics 

8,300‌

194‌

Enerpac

Tool

Group 

13,629‌

520‌

Enpro 

2,753‌

401‌

Esab 

10,742‌

1,014‌

ESCO

Technologies 

3,070‌

322‌

Federal

Signal 

9,000‌

753‌

Flowserve 

15,281‌

735‌

Franklin

Electric 

4,500‌

433‌

Gates

Industrial (1)

12,098‌

191‌

Graco 

22,454‌

1,780‌

Greenbrier 

6,800‌

337‌

Helios

Technologies 

6,000‌

287‌

Hillenbrand 

9,461‌

379‌

Hillman

Solutions (1)

12,851‌

114‌

Hurco 

8,500‌

130‌

Hyster-Yale 

3,300‌

230‌

ITT 

10,395‌

1,343‌

John

Bean

Technologies 

5,472‌

520‌

Kadant 

2,038‌

599‌

Kennametal 

7,000‌

165‌

Lincoln

Electric

Holdings 

7,827‌

1,476‌

Middleby (1)

8,778‌

1,076‌

Mueller

Industries 

14,800‌

843‌

Mueller

Water

Products,

Class

A 

37,943‌

680‌

NN (1)

39,671‌

119‌

Oshkosh 

7,600‌

822‌

Park-Ohio

Holdings 

6,209‌

161‌

Proto

Labs (1)

6,299‌

195‌

RBC

Bearings (1)

4,575‌

1,234‌

REV

Group 

2,031‌

51‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

33

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Shyft

Group 

8,300‌

98‌

SPX

Technologies (1)

6,305‌

896‌

Standex

International 

857‌

138‌

Symbotic (1)(2)

3,200‌

113‌

Tennant 

3,100‌

305‌

Terex 

10,200‌

559‌

Timken 

11,750‌

942‌

Titan

International (1)

14,250‌

106‌

Toro 

17,672‌

1,653‌

Trinity

Industries 

9,658‌

289‌

Wabash

National 

11,400‌

249‌

Watts

Water

Technologies,

Class

A 

3,943‌

723‌

31,087‌

Marine

Transportation

 0.2%

Kirby (1)

7,465‌

894‌

Matson 

6,250‌

818‌

1,712‌

Passenger

Airlines

 0.2%

Alaska

Air

Group (1)

13,863‌

560‌

Allegiant

Travel 

2,500‌

126‌

Frontier

Group

Holdings (1)(2)

14,400‌

71‌

JetBlue

Airways (1)

37,100‌

226‌

Joby

Aviation (1)(2)

51,000‌

260‌

SkyWest (1)

6,130‌

503‌

Spirit

Airlines 

16,900‌

62‌

Sun

Country

Airlines

Holdings (1)

8,200‌

103‌

1,911‌

Professional

Services

 2.6%

Alight,

Class

A (1)

47,800‌

353‌

Asure

Software (1)

11,441‌

96‌

Booz

Allen

Hamilton

Holding 

17,732‌

2,729‌

CACI

International,

Class

A (1)

2,900‌

1,247‌

CBIZ (1)

8,377‌

621‌

Clarivate (1)(2)

54,240‌

309‌

Concentrix 

6,200‌

392‌

Conduent (1)

36,040‌

117‌

CRA

International 

2,173‌

374‌

CSG

Systems

International 

3,020‌

124‌

Dun

&

Bradstreet

Holdings 

32,362‌

300‌

ExlService

Holdings (1)

27,000‌

847‌

Exponent 

8,100‌

770‌

FTI

Consulting (1)

5,869‌

1,265‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

34

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Genpact 

20,538‌

661‌

Huron

Consulting

Group (1)

3,160‌

311‌

ICF

International 

2,305‌

342‌

Innodata (1)

8,400‌

125‌

Insperity 

4,900‌

447‌

KBR 

17,976‌

1,153‌

Kforce 

3,228‌

201‌

Korn

Ferry 

7,441‌

500‌

Legalzoom.com (1)

14,700‌

123‌

ManpowerGroup 

7,142‌

498‌

Mastech

Digital (1)

14,882‌

112‌

Maximus 

7,138‌

612‌

Parsons (1)

2,909‌

238‌

Paycor

HCM (1)

6,700‌

85‌

Paylocity

Holding (1)

6,551‌

864‌

Robert

Half 

11,844‌

758‌

Science

Applications

International 

7,755‌

912‌

SS&C

Technologies

Holdings 

35,011‌

2,194‌

TaskUS,

Class

A (1)(2)

5,600‌

74‌

TransUnion 

30,798‌

2,284‌

TriNet

Group 

4,200‌

420‌

TrueBlue (1)

10,600‌

109‌

TTEC

Holdings 

4,990‌

29‌

Upwork (1)

24,625‌

265‌

Verra

Mobility (1)

34,582‌

941‌

Willdan

Group (1)

8,700‌

251‌

24,053‌

Trading

Companies

&

Distributors

 2.1%

Air

Lease 

14,425‌

686‌

Applied

Industrial

Technologies 

5,444‌

1,056‌

Beacon

Roofing

Supply (1)

9,025‌

817‌

BlueLinx

Holdings (1)

2,100‌

196‌

Boise

Cascade 

4,800‌

572‌

Core

&

Main,

Class

A (1)

27,914‌

1,366‌

Distribution

Solutions

Group (1)

408‌

12‌

DNOW (1)

6,000‌

82‌

Ferguson 

28,373‌

5,494‌

FTAI

Aviation 

14,828‌

1,531‌

GATX 

5,450‌

721‌

GMS (1)

6,185‌

499‌

H&E

Equipment

Services 

4,526‌

200‌

Herc

Holdings 

3,855‌

514‌

McGrath

RentCorp 

4,300‌

458‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

35

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

MRC

Global (1)

20,600‌

266‌

MSC

Industrial

Direct,

Class

A 

4,948‌

392‌

Rush

Enterprises,

Class

A 

7,516‌

315‌

SiteOne

Landscape

Supply (1)

7,626‌

926‌

Titan

Machinery (1)

6,900‌

110‌

Watsco 

4,451‌

2,062‌

WESCO

International 

5,858‌

929‌

Willis

Lease

Finance 

3,600‌

249‌

Xometry,

Class

A (1)(2)

8,300‌

96‌

19,549‌

Total

Industrials

&

Business

Services

166,441‌

INFORMATION

TECHNOLOGY

 17.5%

Communications

Equipment

 0.4%

Calix (1)

9,200‌

326‌

Ciena (1)

24,539‌

1,182‌

Clearfield (1)(2)

3,765‌

145‌

CommScope

Holding (1)

39,600‌

49‌

Comtech

Telecommunications (1)

9,943‌

30‌

Digi

International (1)

5,148‌

118‌

Extreme

Networks (1)

15,246‌

205‌

Harmonic (1)

16,900‌

199‌

Infinera (1)

37,300‌

227‌

KVH

Industries (1)

37,763‌

176‌

Lumentum

Holdings (1)

7,454‌

380‌

NETGEAR (1)

4,204‌

64‌

NetScout

Systems (1)

10,900‌

199‌

Ribbon

Communications (1)

28,496‌

94‌

Ubiquiti 

752‌

109‌

Viasat (1)

13,200‌

168‌

Viavi

Solutions (1)

35,800‌

246‌

3,917‌

Electronic

Equipment,

Instruments

&

Components

 2.1%

Advanced

Energy

Industries 

5,750‌

625‌

Arlo

Technologies (1)

21,152‌

276‌

Arrow

Electronics (1)

6,456‌

780‌

Avnet 

11,150‌

574‌

Badger

Meter 

4,400‌

820‌

Belden 

8,226‌

772‌

Benchmark

Electronics 

6,799‌

268‌

Cognex 

26,993‌

1,262‌

Coherent (1)

18,823‌

1,364‌

Crane

NXT 

6,841‌

420‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

36

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

CTS 

7,158‌

362‌

ePlus (1)

3,279‌

242‌

Fabrinet (1)

5,700‌

1,395‌

FARO

Technologies (1)

5,900‌

94‌

Insight

Enterprises (1)

3,663‌

727‌

IPG

Photonics (1)

4,400‌

371‌

Itron (1)

6,200‌

614‌

Kimball

Electronics (1)

10,770‌

237‌

Knowles (1)

20,700‌

357‌

Lightwave

Logic (1)(2)

21,200‌

63‌

Littelfuse 

4,139‌

1,058‌

Luna

Innovations (1)

17,915‌

57‌

Methode

Electronics 

7,250‌

75‌

MicroVision (1)(2)

42,600‌

45‌

Mirion

Technologies (1)

22,000‌

236‌

Novanta (1)

5,451‌

889‌

OSI

Systems (1)

1,938‌

267‌

PAR

Technology (1)

6,843‌

322‌

PC

Connection 

4,800‌

308‌

Plexus (1)

4,260‌

440‌

Rogers (1)

2,650‌

320‌

Sanmina (1)

9,900‌

656‌

ScanSource (1)

8,500‌

377‌

TD

SYNNEX 

11,028‌

1,273‌

TTM

Technologies (1)

2,780‌

54‌

Vishay

Intertechnology 

10,620‌

237‌

Vishay

Precision

Group (1)

7,422‌

226‌

Vontier 

22,000‌

840‌

19,303‌

IT

Services

 2.0%

ASGN (1)

8,601‌

758‌

BigCommerce

Holdings,

Series

1 (1)(2)

11,685‌

94‌

Cloudflare,

Class

A (1)

41,516‌

3,439‌

DigitalOcean

Holdings (1)(2)

6,954‌

242‌

DXC

Technology (1)

26,961‌

515‌

Fastly,

Class

A (1)(2)

15,400‌

113‌

Grid

Dynamics

Holdings (1)

9,400‌

99‌

Hackett

Group 

9,473‌

206‌

Kyndryl

Holdings (1)

30,300‌

797‌

MongoDB (1)

10,644‌

2,661‌

Okta (1)

21,574‌

2,019‌

Perficient (1)

5,700‌

426‌

Snowflake,

Class

A (1)

45,905‌

6,201‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

37

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Squarespace,

Class

A (1)

5,700‌

249‌

Twilio,

Class

A (1)

24,000‌

1,363‌

Unisys (1)

9,852‌

41‌

19,223‌

Semiconductors

&

Semiconductor

Equipment

 3.2%

ACM

Research,

Class

A (1)

6,642‌

153‌

Aehr

Test

Systems (1)

3,400‌

38‌

Allegro

MicroSystems (1)

7,929‌

224‌

Alpha

&

Omega

Semiconductor (1)

5,600‌

209‌

Ambarella (1)

3,700‌

200‌

Amkor

Technology 

12,520‌

501‌

Astera

Labs (1)

3,587‌

217‌

Atomera (1)

10,100‌

39‌

Axcelis

Technologies (1)

4,718‌

671‌

Cirrus

Logic (1)

7,440‌

950‌

Cohu (1)

10,300‌

341‌

Credo

Technology

Group

Holding (1)

14,400‌

460‌

Diodes (1)

7,298‌

525‌

Entegris 

23,409‌

3,170‌

FormFactor (1)

13,200‌

799‌

Impinj (1)

3,600‌

564‌

Kopin (1)

69,500‌

58‌

Kulicke

&

Soffa

Industries 

9,600‌

472‌

Lattice

Semiconductor (1)

22,250‌

1,290‌

MACOM

Technology

Solutions

Holdings (1)

9,105‌

1,015‌

Marvell

Technology 

122,363‌

8,553‌

MaxLinear (1)

11,870‌

239‌

MKS

Instruments 

11,069‌

1,445‌

NVE 

3,600‌

269‌

Onto

Innovation (1)

7,300‌

1,603‌

Photronics (1)

10,888‌

269‌

Pixelworks (1)

62,300‌

61‌

Power

Integrations 

8,711‌

611‌

Rambus (1)

16,255‌

955‌

Semtech (1)

12,300‌

368‌

Silicon

Laboratories (1)

3,535‌

391‌

SiTime (1)

2,303‌

286‌

SMART

Global

Holdings (1)

9,470‌

217‌

SolarEdge

Technologies (1)

7,954‌

201‌

Synaptics (1)

6,082‌

536‌

Ultra

Clean

Holdings (1)

2,195‌

108‌

Universal

Display 

5,339‌

1,123‌

Veeco

Instruments (1)

3,060‌

143‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

38

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Wolfspeed (1)(2)

19,826‌

451‌

29,725‌

Software

 8.9%

8x8 (1)

43,100‌

96‌

A10

Networks 

24,572‌

340‌

ACI

Worldwide (1)

16,282‌

645‌

Adeia 

22,764‌

255‌

Agilysys (1)

4,295‌

447‌

Alarm.com

Holdings (1)

7,850‌

499‌

Altair

Engineering,

Class

A (1)

5,745‌

563‌

Appfolio,

Class

A (1)

3,184‌

779‌

AppLovin,

Class

A (1)

27,432‌

2,283‌

Asana,

Class

A (1)(2)

9,198‌

129‌

Aspen

Technology (1)

4,210‌

836‌

Atlassian,

Class

A (1)

23,047‌

4,076‌

Aurora

Innovation (1)(2)

158,170‌

438‌

Bentley

Systems,

Class

B 

30,040‌

1,483‌

BILL

Holdings (1)

16,183‌

851‌

Blackbaud (1)

6,600‌

503‌

BlackLine (1)

6,082‌

295‌

Box,

Class

A (1)

22,341‌

591‌

Braze,

Class

A (1)

10,626‌

413‌

C3.ai,

Class

A (1)(2)

12,300‌

356‌

CCC

Intelligent

Solutions

Holdings (1)

42,494‌

472‌

Cerence (1)

9,888‌

28‌

Cleanspark (1)

27,100‌

432‌

Clearwater

Analytics

Holdings,

Class

A (1)

21,318‌

395‌

CommVault

Systems (1)

5,300‌

644‌

Confluent,

Class

A (1)

38,196‌

1,128‌

Consensus

Cloud

Solutions (1)

7,067‌

121‌

Datadog,

Class

A (1)

44,977‌

5,833‌

Digimarc (1)(2)

4,000‌

124‌

DocuSign (1)

32,631‌

1,746‌

Dolby

Laboratories,

Class

A 

7,340‌

581‌

Domo,

Class

B (1)

7,700‌

59‌

DoubleVerify

Holdings (1)

22,525‌

438‌

Dropbox,

Class

A (1)

29,878‌

671‌

Dynatrace (1)

37,885‌

1,695‌

Elastic (1)

11,000‌

1,253‌

Envestnet (1)

10,067‌

630‌

Five9 (1)

9,410‌

415‌

Freshworks,

Class

A (1)

22,858‌

290‌

Gitlab,

Class

A (1)

11,700‌

582‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

39

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Guidewire

Software (1)

12,166‌

1,678‌

HashiCorp,

Class

A (1)

18,053‌

608‌

HubSpot (1)

7,600‌

4,482‌

Informatica,

Class

A (1)

7,837‌

242‌

Intapp (1)

4,800‌

176‌

Intellicheck (1)

19,500‌

67‌

InterDigital (2)

3,460‌

403‌

Jamf

Holding (1)

10,900‌

180‌

LivePerson (1)

79,453‌

46‌

LiveRamp

Holdings (1)

2,190‌

68‌

Manhattan

Associates (1)

9,140‌

2,255‌

Marathon

Digital

Holdings (1)

29,328‌

582‌

Matterport (1)

4,225‌

19‌

MicroStrategy,

Class

A (1)(2)

2,238‌

3,083‌

Mitek

Systems (1)

18,497‌

207‌

N-able (1)

20,350‌

310‌

nCino (1)

10,223‌

321‌

NCR

Voyix (1)

15,367‌

190‌

Nutanix,

Class

A (1)

38,327‌

2,179‌

Olo,

Class

A (1)

18,700‌

83‌

ON24 (1)

27,500‌

165‌

OneSpan (1)

11,000‌

141‌

PagerDuty (1)

21,124‌

484‌

Palantir

Technologies,

Class

A (1)

277,338‌

7,025‌

Pegasystems 

5,500‌

333‌

PowerSchool

Holdings,

Class

A (1)

12,386‌

277‌

Procore

Technologies (1)

15,105‌

1,002‌

Progress

Software 

8,700‌

472‌

PROS

Holdings (1)

9,200‌

264‌

Q2

Holdings (1)

9,800‌

591‌

Qualys (1)

4,500‌

642‌

Rapid7 (1)

8,404‌

363‌

RingCentral,

Class

A (1)

10,600‌

299‌

Riot

Platforms (1)(2)

30,300‌

277‌

Samsara,

Class

A (1)

33,401‌

1,126‌

SentinelOne,

Class

A (1)

31,608‌

665‌

Smartsheet,

Class

A (1)

19,436‌

857‌

SolarWinds 

18,150‌

219‌

Sprinklr,

Class

A (1)

11,000‌

106‌

Sprout

Social,

Class

A (1)

7,300‌

260‌

SPS

Commerce (1)

4,294‌

808‌

Telos (1)

27,006‌

109‌

Tenable

Holdings (1)

15,964‌

696‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

40

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Teradata (1)

11,751‌

406‌

UiPath,

Class

A (1)

55,411‌

703‌

Unity

Software (1)

31,640‌

514‌

Upland

Software (1)

20,100‌

50‌

Varonis

Systems (1)

13,300‌

638‌

Verint

Systems (1)

13,400‌

431‌

Veritone (1)

28,200‌

64‌

Vertex,

Class

A (1)

8,730‌

315‌

Workday,

Class

A (1)

30,022‌

6,712‌

Workiva (1)

7,547‌

551‌

Xperi (1)

16,485‌

135‌

Yext (1)(2)

20,000‌

107‌

Zeta

Global

Holdings,

Class

A (1)

28,068‌

495‌

Zoom

Video

Communications,

Class

A (1)

34,911‌

2,066‌

Zscaler (1)

13,204‌

2,538‌

Zuora,

Class

A (1)

29,600‌

294‌

83,794‌

Technology

Hardware,

Storage

&

Peripherals

 0.9%

Dell

Technologies,

Class

C 

37,884‌

5,224‌

Eastman

Kodak (1)

19,000‌

102‌

Immersion 

20,635‌

194‌

Intevac (1)

30,000‌

116‌

IonQ (1)(2)

23,100‌

162‌

Pure

Storage,

Class

A (1)

43,571‌

2,798‌

Turtle

Beach (1)

10,100‌

145‌

Xerox

Holdings 

13,400‌

156‌

8,897‌

Total

Information

Technology

164,859‌

MATERIALS

 4.9%

Chemicals

 1.6%

American

Vanguard 

21,166‌

182‌

Arcadium

Lithium (1)

116,025‌

390‌

Ashland 

6,100‌

576‌

Aspen

Aerogels (1)

1,521‌

36‌

Avient 

14,230‌

621‌

Axalta

Coating

Systems (1)

28,767‌

983‌

Balchem 

5,300‌

816‌

Cabot 

8,250‌

758‌

Chemours 

22,400‌

506‌

Ecovyst (1)

26,100‌

234‌

Element

Solutions 

31,558‌

856‌

Ginkgo

Bioworks

Holdings (1)(2)

205,600‌

69‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

41

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

HB

Fuller 

10,107‌

778‌

Huntsman 

30,797‌

701‌

Ingevity (1)

7,700‌

337‌

Innospec 

4,700‌

581‌

Minerals

Technologies 

3,010‌

250‌

NewMarket 

680‌

351‌

Olin 

17,130‌

808‌

PureCycle

Technologies (1)(2)

23,200‌

137‌

Quaker

Chemical 

2,500‌

424‌

RPM

International 

20,391‌

2,196‌

Scotts

Miracle-Gro 

9,554‌

622‌

Sensient

Technologies 

3,980‌

295‌

Stepan 

3,100‌

260‌

Tronox

Holdings 

17,600‌

276‌

Westlake 

4,442‌

643‌

14,686‌

Construction

Materials

 1.0%

CRH 

100,437‌

7,531‌

Eagle

Materials 

4,482‌

974‌

Knife

River (1)

6,697‌

470‌

Summit

Materials,

Class

A (1)

23,247‌

851‌

9,826‌

Containers

&

Packaging

 0.7%

AptarGroup 

8,170‌

1,150‌

Berry

Global

Group 

15,400‌

906‌

Crown

Holdings 

17,820‌

1,326‌

Graphic

Packaging

Holding 

39,730‌

1,041‌

Greif,

Class

A 

5,200‌

299‌

Myers

Industries 

11,416‌

153‌

O-I

Glass (1)

27,600‌

307‌

Sealed

Air 

15,632‌

544‌

Silgan

Holdings 

8,240‌

349‌

Sonoco

Products 

10,947‌

555‌

TriMas 

12,000‌

307‌

6,937‌

Metals

&

Mining

 1.5%

Alcoa 

29,106‌

1,158‌

Alpha

Metallurgical

Resources 

1,676‌

470‌

Ampco-Pittsburgh (1)(2)

21,600‌

17‌

Arch

Resources 

2,400‌

365‌

ATI (1)

18,382‌

1,019‌

Carpenter

Technology 

7,900‌

866‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

42

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Century

Aluminum (1)

7,258‌

122‌

Cleveland-Cliffs (1)

70,280‌

1,082‌

Coeur

Mining (1)

73,000‌

410‌

Commercial

Metals 

14,100‌

775‌

Compass

Minerals

International (2)

4,600‌

48‌

Gold

Resource (1)

84,700‌

32‌

Haynes

International 

2,988‌

175‌

Hecla

Mining 

85,000‌

412‌

Ivanhoe

Electric (1)

21,440‌

201‌

Kaiser

Aluminum 

1,236‌

109‌

Materion 

2,600‌

281‌

Metallus (1)

10,000‌

203‌

MP

Materials (1)(2)

25,776‌

328‌

Olympic

Steel 

2,610‌

117‌

Piedmont

Lithium (1)(2)

4,300‌

43‌

Radius

Recycling 

4,448‌

68‌

Reliance 

9,052‌

2,585‌

Royal

Gold 

9,979‌

1,249‌

Ryerson

Holding 

5,500‌

107‌

United

States

Steel 

29,700‌

1,123‌

Warrior

Met

Coal 

9,646‌

605‌

Worthington

Steel 

4,479‌

149‌

14,119‌

Paper

&

Forest

Products

 0.1%

Clearwater

Paper (1)

1,988‌

96‌

Louisiana-Pacific 

11,726‌

966‌

Sylvamo 

4,400‌

302‌

1,364‌

Total

Materials

46,932‌

REAL

ESTATE

 5.5%

Diversified

Real

Estate

Investment

Trusts

 0.4%

Broadstone

Net

Lease,

REIT 

26,596‌

422‌

Empire

State

Realty

Trust,

Class

A,

REIT 

40,800‌

383‌

Essential

Properties

Realty

Trust,

REIT 

19,300‌

535‌

Gladstone

Commercial,

REIT 

12,182‌

174‌

Global

Net

Lease,

REIT 

29,521‌

217‌

WP

Carey,

REIT 

30,015‌

1,652‌

3,383‌

Health

Care

Real

Estate

Investment

Trusts

 0.5%

CareTrust

REIT,

REIT 

15,976‌

401‌

Community

Healthcare

Trust,

REIT 

9,000‌

210‌

Diversified

Healthcare

Trust,

REIT 

31,089‌

95‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

43

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Healthcare

Realty

Trust,

REIT 

65,265‌

1,076‌

LTC

Properties,

REIT 

2,950‌

102‌

Medical

Properties

Trust,

REIT 

89,722‌

387‌

National

Health

Investors,

REIT 

5,820‌

394‌

Omega

Healthcare

Investors,

REIT 

30,406‌

1,041‌

Sabra

Health

Care

REIT,

REIT 

20,669‌

318‌

Universal

Health

Realty

Income

Trust,

REIT 

6,850‌

268‌

4,292‌

Hotel

&

Resort

Real

Estate

Investment

Trusts

 0.4%

Apple

Hospitality

REIT,

REIT 

39,240‌

570‌

DiamondRock

Hospitality,

REIT 

30,600‌

259‌

Park

Hotels

&

Resorts,

REIT 

23,648‌

354‌

Pebblebrook

Hotel

Trust,

REIT 

29,353‌

404‌

RLJ

Lodging

Trust,

REIT 

32,700‌

315‌

Ryman

Hospitality

Properties,

REIT 

6,715‌

671‌

Service

Properties

Trust,

REIT 

19,400‌

100‌

Summit

Hotel

Properties,

REIT 

30,400‌

182‌

Sunstone

Hotel

Investors,

REIT 

16,394‌

171‌

Xenia

Hotels

&

Resorts,

REIT 

25,900‌

371‌

3,397‌

Industrial

Real

Estate

Investment

Trusts

 0.8%

Americold

Realty

Trust,

REIT 

32,723‌

836‌

EastGroup

Properties,

REIT 

7,337‌

1,248‌

First

Industrial

Realty

Trust,

REIT 

16,852‌

801‌

Innovative

Industrial

Properties,

REIT 

5,000‌

546‌

LXP

Industrial

Trust,

REIT 

37,929‌

346‌

Rexford

Industrial

Realty,

REIT 

34,744‌

1,549‌

STAG

Industrial,

REIT 

26,000‌

938‌

Terreno

Realty,

REIT 

16,467‌

974‌

7,238‌

Office

Real

Estate

Investment

Trusts

 0.5%

Brandywine

Realty

Trust,

REIT 

34,143‌

153‌

COPT

Defense

Properties,

REIT 

7,705‌

193‌

Cousins

Properties,

REIT 

13,531‌

313‌

Douglas

Emmett,

REIT 

24,962‌

332‌

Easterly

Government

Properties,

REIT 

14,986‌

186‌

Equity

Commonwealth,

REIT (1)

8,676‌

168‌

Franklin

Street

Properties,

REIT 

72,826‌

112‌

Highwoods

Properties,

REIT 

6,094‌

160‌

JBG

SMITH

Properties,

REIT 

16,315‌

249‌

Kilroy

Realty,

REIT 

19,100‌

595‌

NET

Lease

Office

Properties,

REIT 

4,521‌

111‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

44

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Office

Properties

Income

Trust,

REIT 

19,941‌

41‌

Paramount

Group,

REIT 

33,300‌

154‌

Piedmont

Office

Realty

Trust,

Class

A,

REIT 

20,700‌

150‌

Postal

Realty

Trust,

Class

A,

REIT 

19,154‌

255‌

SL

Green

Realty,

REIT 

10,988‌

622‌

Vornado

Realty

Trust,

REIT 

30,055‌

790‌

4,584‌

Real

Estate

Management

&

Development

 0.6%

Anywhere

Real

Estate (1)

21,100‌

70‌

Compass,

Class

A (1)

52,800‌

190‌

Cushman

&

Wakefield (1)

21,900‌

228‌

DigitalBridge

Group 

22,800‌

312‌

Douglas

Elliman (1)

54,538‌

63‌

eXp

World

Holdings (2)

13,900‌

157‌

FRP

Holdings (1)

8,130‌

232‌

Howard

Hughes

Holdings (1)

2,800‌

182‌

Jones

Lang

LaSalle (1)

6,014‌

1,235‌

Kennedy-Wilson

Holdings 

23,700‌

230‌

Newmark

Group,

Class

A 

25,804‌

264‌

Opendoor

Technologies (1)

76,732‌

141‌

Rafael

Holdings,

Class

B (1)

29,321‌

42‌

Redfin (1)

19,500‌

117‌

Seritage

Growth

Properties,

Class

A (1)

10,245‌

48‌

St.

Joe 

4,458‌

244‌

Tejon

Ranch (1)

14,850‌

253‌

Zillow

Group,

Class

A (1)

5,741‌

259‌

Zillow

Group,

Class

C (1)

20,552‌

953‌

5,220‌

Residential

Real

Estate

Investment

Trusts

 0.8%

American

Homes

4

Rent,

Class

A,

REIT 

50,933‌

1,893‌

Apartment

Investment

&

Management,

Class

A,

REIT (1)

41,458‌

344‌

Bluerock

Homes

Trust 

6,174‌

108‌

Centerspace,

REIT 

3,200‌

216‌

Equity

LifeStyle

Properties,

REIT 

29,462‌

1,919‌

Independence

Realty

Trust,

REIT 

20,540‌

385‌

Sun

Communities,

REIT 

19,322‌

2,325‌

UMH

Properties,

REIT 

15,372‌

246‌

Veris

Residential,

REIT 

11,270‌

169‌

7,605‌

Retail

Real

Estate

Investment

Trusts

 0.7%

Acadia

Realty

Trust,

REIT 

25,481‌

457‌

Agree

Realty,

REIT 

11,651‌

722‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

45

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Alexander's,

REIT 

1,048‌

236‌

Brixmor

Property

Group,

REIT 

44,200‌

1,020‌

Getty

Realty,

REIT 

11,643‌

310‌

InvenTrust

Properties,

REIT 

2,744‌

68‌

Kite

Realty

Group

Trust,

REIT 

26,421‌

591‌

Macerich,

REIT 

28,457‌

439‌

NNN

REIT,

REIT 

24,030‌

1,024‌

Phillips

Edison,

REIT 

12,370‌

405‌

Retail

Opportunity

Investments,

REIT 

4,973‌

62‌

Saul

Centers,

REIT 

6,819‌

251‌

SITE

Centers,

REIT 

33,900‌

491‌

Tanger,

REIT 

14,100‌

382‌

Urban

Edge

Properties,

REIT 

26,700‌

493‌

6,951‌

Specialized

Real

Estate

Investment

Trusts

 0.8%

CubeSmart,

REIT 

37,281‌

1,684‌

EPR

Properties,

REIT 

8,468‌

355‌

Four

Corners

Property

Trust,

REIT 

6,401‌

158‌

Gaming

&

Leisure

Properties,

REIT 

39,247‌

1,774‌

Gladstone

Land,

REIT 

13,309‌

182‌

Global

Self

Storage,

REIT 

33,399‌

162‌

Lamar

Advertising,

Class

A,

REIT 

14,607‌

1,746‌

National

Storage

Affiliates

Trust,

REIT 

8,532‌

352‌

Outfront

Media,

REIT 

15,700‌

225‌

PotlatchDeltic,

REIT 

8,095‌

319‌

Rayonier,

REIT 

24,151‌

703‌

Safehold,

REIT 

8,208‌

158‌

Uniti

Group,

REIT 

35,100‌

103‌

7,921‌

Total

Real

Estate

50,591‌

UTILITIES

 1.6%

Electric

Utilities

 0.5%

ALLETE 

7,182‌

448‌

Avangrid 

7,700‌

274‌

Genie

Energy,

Class

B 

7,486‌

110‌

Hawaiian

Electric

Industries (2)

17,031‌

154‌

IDACORP 

7,938‌

739‌

MGE

Energy 

7,155‌

535‌

OGE

Energy 

27,600‌

985‌

Otter

Tail 

6,850‌

600‌

PNM

Resources 

10,019‌

370‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

46

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Portland

General

Electric 

10,300‌

445‌

4,660‌

Gas

Utilities

 0.5%

Chesapeake

Utilities 

4,302‌

457‌

National

Fuel

Gas 

14,292‌

774‌

New

Jersey

Resources 

13,755‌

588‌

Northwest

Natural

Holding 

10,183‌

368‌

ONE

Gas 

8,800‌

562‌

RGC

Resources 

8,179‌

167‌

Southwest

Gas

Holdings 

8,100‌

570‌

Spire 

4,310‌

262‌

UGI 

26,990‌

618‌

4,366‌

Independent

Power

&

Renewable

Electricity

Producers

 0.1%

Clearway

Energy,

Class

C 

7,693‌

190‌

Montauk

Renewables (1)

24,100‌

137‌

Ormat

Technologies 

7,618‌

546‌

Spruce

Power

Holding (1)

19,162‌

70‌

Sunnova

Energy

International (1)(2)

20,600‌

115‌

1,058‌

Multi-Utilities

 0.2%

Avista 

10,890‌

377‌

Black

Hills 

8,140‌

442‌

Northwestern

Energy

Group 

8,500‌

426‌

Unitil 

5,719‌

296‌

1,541‌

Water

Utilities

 0.3%

American

States

Water 

6,825‌

495‌

California

Water

Service

Group 

9,650‌

468‌

Essential

Utilities 

32,032‌

1,196‌

Middlesex

Water 

6,378‌

333‌

SJW

Group 

4,960‌

269‌

2,761‌

Total

Utilities

14,386‌

Total

Common

Stocks

(Cost

$595,505)

930,016‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

47

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

SHORT-TERM

INVESTMENTS

 0.5%

Money

Market

Funds

 0.5%

T.

Rowe

Price

Government

Reserve

Fund,

5.38% (4)(5)

4,502,059‌

4,502‌

4,502‌

U.S.

Treasury

Obligations

 0.0%

U.S.

Treasury

Bills,

5.291%,

9/19/24 (6)

325,000‌

321‌

321‌

Total

Short-Term

Investments

(Cost

$4,823)

4,823‌

SECURITIES

LENDING

COLLATERAL

 2.5%

INVESTMENTS

IN

A

POOLED

ACCOUNT

THROUGH

SECURITIES

LENDING

PROGRAM

WITH

STATE

STREET

BANK

AND

TRUST

COMPANY 2.5%

Money

Market

Funds 2.5%

T.

Rowe

Price

Government

Reserve

Fund,

5.38% (4)(5)

23,384,067‌

23,384‌

Total

Investments

in

a

Pooled

Account

through

Securities

Lending

Program

with

State

Street

Bank

and

Trust

Company

23,384‌

Total

Securities

Lending

Collateral

(Cost

$23,384)

23,384‌

Total

Investments

in

Securities

102.3%

of

Net

Assets

(Cost

$623,712)

$

958,223‌

‡

Shares/Par

and

Notional

Amount

are

denominated

in

U.S.

dollars

unless

otherwise

noted.

(1)

Non-income

producing

(2)

See

Note

4.

All

or

a

portion

of

this

security

is

on

loan

at

June

30,

2024.

(3)

See

Note

2.

Level

3

in

fair

value

hierarchy.

(4)

Seven-day

yield

(5)

Affiliated

Companies

(6)

At

June

30,

2024,

all

or

a

portion

of

this

security

is

pledged

as

collateral

and/

or

margin

deposit

to

cover

future

funding

obligations.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

48

CVR

Contingent

Value

Rights

EC

Escrow

CUSIP;

represents

a

beneficial

interest

in

a

residual

pool

of

assets;

the

amount

and

timing

of

future

distributions,

if

any,

is

uncertain;

when

presented,

interest

rate

and

maturity

date

are

those

of

the

original

security.

REIT

A

domestic

Real

Estate

Investment

Trust

whose

distributions

pass-through

with

original

tax

character

to

the

shareholder

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

49

FUTURES

CONTRACTS

($000s)

Expiration

Date

Notional

Amount

Value

and

Unrealized

Gain

(Loss)

Long,

37

Russell

2000

E-Mini

Index

contracts

9/24

3,820

$

31‌

Long,

5

S&P

400

E-Mini

MidCap

Index

contracts

9/24

1,479

4‌

Net

payments

(receipts)

of

variation

margin

to

date

(24‌)

Variation

margin

receivable

(payable)

on

open

futures

contracts

$

11‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

50

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

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

six

months

ended

June

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

Government

Reserve

Fund,

5.38%

$

—‌

$

—‌

$

109‌++

Totals

$

—‌#

$

—‌

$

109‌+

Supplementary

Investment

Schedule

Affiliate

Value

12/31/23

Purchase

Cost

Sales

Cost

Value

06/30/24

T.

Rowe

Price

Government

Reserve

Fund,

5.38%

$

57,881‌

 ¤

 ¤

$

27,886‌

Total

$

27,886‌^

#

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

as

described

in

Note

4.

+

Investment

income

comprised

$109

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

$27,886.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

June

30,

2024

(Unaudited)

Statement

of

Assets

and

Liabilities

51

($000s,

except

shares

and

per

share

amounts)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Assets

Investments

in

securities,

at

value

(cost

$623,712)

$

958,223‌

Dividends

receivable

726‌

Receivable

for

investment

securities

sold

618‌

Cash

218‌

Receivable

for

shares

sold

126‌

Variation

margin

receivable

on

futures

contracts

11‌

Other

assets

64‌

Total

assets

959,986‌

Liabilities

Obligation

to

return

securities

lending

collateral

23,384‌

Payable

for

shares

redeemed

150‌

Investment

management

fees

payable

69‌

Due

to

affiliates

57‌

Payable

to

directors

1‌

Other

liabilities

93‌

Total

liabilities

23,754‌

NET

ASSETS

$

936,232‌

Net

Assets

Consist

of:

Total

distributable

earnings

(loss)

$

403,915‌

Paid-in

capital

applicable

to

30,095,908

shares

of

$0.0001

par

value

capital

stock

outstanding;

2,000,000,000

shares

of

the

Corporation

authorized

532,317‌

NET

ASSETS

$

936,232‌

NET

ASSET

VALUE

PER

SHARE

$

31.11‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Statement

of

Operations

52

($000s)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

6

Months

Ended

6/30/24

Investment

Income

(Loss)

Income

Dividend

(net

of

foreign

taxes

of

$7)

$

4,811‌

Securities

lending

255‌

    Interest

10‌

Total

income

5,076‌

Expenses

Investment

management

424‌

Shareholder

servicing

523‌

Prospectus

and

shareholder

reports

12‌

Custody

and

accounting

111‌

Legal

and

audit

21‌

Registration

20‌

Directors

2‌

Miscellaneous

10‌

Repaid

to

Price

Associates

15‌

Total

expenses

1,138‌

Net

investment

income

3,938‌

Realized

and

Unrealized

Gain

/

Loss

–

Net

realized

gain

(loss)

Securities

45,365‌

Futures

331‌

Net

realized

gain

45,696‌

Change

in

net

unrealized

gain

/

loss

Securities

(

18,521‌

)

Futures

(

349‌

)

Change

in

net

unrealized

gain

/

loss

(

18,870‌

)

Net

realized

and

unrealized

gain

/

loss

26,826‌

INCREASE

IN

NET

ASSETS

FROM

OPERATIONS

$

30,764‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Statement

of

Changes

in

Net

Assets

53

($000s)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

6

Months

Ended

6/30/24

Year

Ended

12/31/23

Increase

(Decrease)

in

Net

Assets

Operations

Net

investment

income

$

3,938‌

$

10,088‌

Net

realized

gain

45,696‌

44,804‌

Change

in

net

unrealized

gain

/

loss

(

18,870‌

)

144,262‌

Increase

in

net

assets

from

operations

30,764‌

199,154‌

Distributions

to

shareholders

Net

earnings

–‌

(

33,659‌

)

Capital

share

transactions

*

Shares

sold

35,484‌

61,049‌

Distributions

reinvested

–‌

31,104‌

Shares

redeemed

(

83,786‌

)

(

130,078‌

)

Decrease

in

net

assets

from

capital

share

transactions

(

48,302‌

)

(

37,925‌

)

Net

Assets

Increase

(decrease)

during

period

(

17,538‌

)

127,570‌

Beginning

of

period

953,770‌

826,200‌

End

of

period

$

936,232‌

$

953,770‌

*Share

information

(000s)

Shares

sold

1,159‌

2,223‌

Distributions

reinvested

–‌

1,052‌

Shares

redeemed

(

2,732‌

)

(

4,762‌

)

Decrease

in

shares

outstanding

(

1,573‌

)

(

1,487‌

)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

Unaudited

NOTES

TO

FINANCIAL

STATEMENTS

54

T.

Rowe

Price

Index

Trust,

Inc. (the

corporation) is

registered

under

the

Investment

Company

Act

of

1940

(the

1940

Act).

The

Extended

Equity

Market

Index

Fund

(the

fund)

is

an

open-end

management

investment

company

established

by

the

corporation

and

intends

to

be

diversified

in

approximately

the

same

proportion

as

the

index

it

tracks

is

diversified.

The

fund

may

become

nondiversified

for

periods

of

time

solely

as

a

result

of

changes

in

the

composition

of

the

index

(for

example,

changes

in

the

relative

market

capitalization

or

index

weighting

of

one

or

more

securities

represented

in

the

index). The

fund

seeks

to

track

the

performance

of

a

benchmark

index

that

measures

the

investment

return

of

small-

and

mid-capitalization

U.S.

stocks.

NOTE

1

-

SIGNIFICANT

ACCOUNTING

POLICIES 

Basis

of

Preparation

 The fund

is

an

investment

company

and

follows

accounting

and

reporting

guidance

in

the

Financial

Accounting

Standards

Board

(FASB)

Accounting

Standards

Codification

Topic

946

(ASC

946).

The

accompanying

financial

statements

were

prepared

in

accordance

with

accounting

principles

generally

accepted

in

the

United

States

of

America

(GAAP),

including,

but

not

limited

to,

ASC

946.

GAAP

requires

the

use

of

estimates

made

by

management.

Management

believes

that

estimates

and

valuations

are

appropriate;

however,

actual

results

may

differ

from

those

estimates,

and

the

valuations

reflected

in

the

accompanying

financial

statements

may

differ

from

the

value

ultimately

realized

upon

sale

or

maturity.

Investment

Transactions,

Investment

Income,

and

Distributions

 Investment

transactions

are

accounted

for

on

the

trade

date

basis.

Income

and

expenses

are

recorded

on

the

accrual

basis.

Realized

gains

and

losses

are

reported

on

the

identified

cost

basis. Premiums

and

discounts

on

debt

securities

are

amortized

for

financial

reporting

purposes. Income

tax-related

interest

and

penalties,

if

incurred,

are

recorded

as

income

tax

expense. Dividends

received

from other

investment

companies are

reflected

as

dividend income;

capital

gain

distributions

are

reflected

as

realized

gain/loss. Dividend

income and

capital

gain

distributions

are

recorded

on

the

ex-dividend

date. Distributions

from

REITs

are

initially

recorded

as

dividend

income

and,

to

the

extent

such

represent

a

return

of

capital

or

capital

gain

for

tax

purposes,

are

reclassified

when

such

information

becomes

available. Non-cash

dividends,

if

any,

are

recorded

at

the

fair

market

value

of

the

asset

received. Proceeds

from

litigation

payments,

if

any,

are

included

in

either

net

realized

gain

(loss)

or

change

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in

net

unrealized

gain/loss

from

securities. Distributions

to

shareholders

are

recorded

on

the

ex-dividend

date. Income

distributions,

if

any,

are

declared

and

paid annually. A

capital

gain

distribution,

if

any, may

also

be

declared

and

paid

by

the

fund

annually.

In-Kind

Redemptions

 In

accordance

with

guidelines

described

in

the

fund’s

prospectus,

and

when

considered

to

be

in

the

best

interest

of

all

shareholders,

the

fund

may

distribute

portfolio

securities

rather

than

cash

as

payment

for

a

redemption

of

fund

shares

(in-kind

redemption).

Gains

and

losses

realized

on

in-kind

redemptions

are

not

recognized

for

tax

purposes

and

are

reclassified

from

undistributed

realized

gain

(loss)

to

paid-in

capital.

During

the

six

months ended

June

30,

2024,

the

fund

realized

$1,783,000 of

net

gain

on

$2,496,000

of

in-kind

redemptions.

Capital

Transactions

 Each

investor’s

interest

in

the

net

assets

of the

fund

is

represented

by

fund

shares. The

fund’s

net

asset

value

(NAV)

per

share

is

computed

at

the

close

of

the

New

York

Stock

Exchange

(NYSE),

normally

4

p.m.

ET,

each

day

the

NYSE

is

open

for

business.

However,

the

NAV

per

share

may

be

calculated

at

a

time

other

than

the

normal

close

of

the

NYSE

if

trading

on

the

NYSE

is

restricted,

if

the

NYSE

closes

earlier,

or

as

may

be

permitted

by

the

SEC.

Purchases

and

redemptions

of

fund

shares

are

transacted

at

the

next-computed

NAV

per

share,

after

receipt

of

the

transaction

order

by

T.

Rowe

Price

Associates,

Inc.,

or

its

agents.

Indemnification

 In

the

normal

course

of

business, the

fund

may

provide

indemnification

in

connection

with

its

officers

and

directors,

service

providers,

and/or

private

company

investments. The

fund’s

maximum

exposure

under

these

arrangements

is

unknown;

however,

the

risk

of

material

loss

is

currently

considered

to

be

remote.

NOTE

2

-

VALUATION 

Fair

Value

  The

fund’s

financial

instruments

are

valued

at

the

close

of

the

NYSE

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

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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)

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

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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.

Debt

securities

generally

are

traded

in

the over-the-counter

(OTC)

market

and

are

valued

at

prices

furnished

by

independent

pricing

services

or

by

broker

dealers

who

make

markets

in

such

securities.

When

valuing

securities,

the

independent

pricing

services

consider

factors

such

as,

but

not

limited

to,

the

yield

or

price

of

bonds

of

comparable

quality,

coupon,

maturity,

and

type,

as

well

as

prices

quoted

by

dealers

who

make

markets

in

such

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.

Assets

and

liabilities

other

than

financial

instruments,

including

short-

term

receivables

and

payables,

are

carried

at

cost,

or

estimated

realizable

value,

if

less,

which

approximates

fair

value. 

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

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.

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Valuation

Inputs

  The

following

table

summarizes

the

fund’s

financial

instruments,

based

on

the

inputs

used

to

determine

their

fair

values

on

June

30,

2024

(for

further

detail

by

category,

please

refer

to

the

accompanying

Portfolio

of

Investments):

NOTE

3

-

DERIVATIVE

INSTRUMENTS 

During

the

six

months ended

June

30,

2024,

the

fund

invested

in

derivative

instruments.

As

defined

by

GAAP,

a

derivative

is

a

financial

instrument

whose

value

is

derived

from

an

underlying

security

price,

foreign

exchange

rate,

interest

rate,

index

of

prices

or

rates,

or

other

variable;

it

requires

little

or

no

initial

investment

and

permits

or

requires

net

settlement.

The

fund

invests

in

derivatives

only

if

the

expected

risks

and

rewards

are

consistent

with

its

investment

objectives,

policies,

and

overall

risk

profile,

as

described

in

its

prospectus

and

Statement

of

Additional

Information.

The

fund

may

use

derivatives

for

a

variety

of

purposes

and

may

use

them

to

establish

both

long

and

short

positions

within

the

fund’s

portfolio.

Potential

uses

include

to

hedge

against

declines

in

principal

value,

increase

yield,

invest

in

an

asset

with

greater

efficiency

and

at

a

lower

cost

than

is

possible

through

direct

investment,

to

enhance

return,

or

to

adjust

credit

exposure.

The

risks

associated

with

the

use

of

derivatives

are

different

from,

and

potentially

much

greater

than,

the

risks

associated

with

investing

directly

in

the

instruments

on

which

the

derivatives

are

based.

($000s)

Level

1

Level

2

Level

3

Total

Value

Assets

Common

Stocks

$

930,013‌

$

—‌

$

3‌

$

930,016‌

Short-Term

Investments

4,502‌

321‌

—‌

4,823‌

Securities

Lending

Collateral

23,384‌

—‌

—‌

23,384‌

Total

Securities

957,899‌

321‌

3‌

958,223‌

Futures

Contracts*

35‌

—‌

—‌

35‌

Total

$

957,934‌

$

321‌

$

3‌

$

958,258‌

*

The

fair

value

presented

includes

cumulative

gain

(loss)

on

open

futures

contracts;

however,

the

net

value

reflected

on

the

accompanying

Portfolio

of

Investments

is

only

the

unsettled

variation

margin

receivable

(payable)

at

that

date.

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The

fund

values

its

derivatives

at

fair

value

and

recognizes

changes

in

fair

value

currently

in

its

results

of

operations.

Accordingly,

the

fund

does

not

follow

hedge

accounting,

even

for

derivatives

employed

as

economic

hedges.

Generally,

the

fund

accounts

for

its

derivatives

on

a

gross

basis.

It

does

not

offset

the

fair

value

of

derivative

liabilities

against

the

fair

value

of

derivative

assets

on

its

financial

statements,

nor

does

it

offset

the

fair

value

of

derivative

instruments

against

the

right

to

reclaim

or

obligation

to

return

collateral.

The

following

table

summarizes

the

fair

value

of

the

fund’s

derivative

instruments

held

as

of

June

30,

2024,

and

the

related

location

on

the

accompanying

Statement

of

Assets

and

Liabilities,

presented

by

primary

underlying

risk

exposure: 

Additionally,

the

amount

of

gains

and

losses

on

derivative

instruments

recognized

in

fund

earnings

during

the

six

months ended

June

30,

2024,

and

the

related

location

on

the

accompanying

Statement

of

Operations

is

summarized

in

the

following

table

by

primary

underlying

risk

exposure: 

($000s)

Location

on

Statement

of

Assets

and

Liabilities

Fair

Value*

Assets

Equity

derivatives

Futures

$

35‌

*

Total

$

35‌

*

The

fair

value

presented

includes

cumulative

gain

(loss)

on

open

futures

contracts;

however,

the

value

reflected

on

the

accompanying

Statement

of

Assets

and

Liabilities

is

only

the

unsettled

variation

margin

receivable

(payable)

at

that

date.

($000s)                                              

Location

of

Gain

(Loss)

on

Statement

of

Operations

Futures

Realized

Gain

(Loss)

Equity

derivatives

$

331‌

Total

$

331‌

Change

in

Unrealized

Gain

(Loss)

Equity

derivatives

$

(349‌)

Total

$

(349‌)

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Counterparty

Risk

and

Collateral

 The

fund

invests

in

exchange-traded

and/or

centrally

cleared

derivative

contracts,

such

as

futures,

exchange-traded

options,

and

centrally

cleared

swaps.

Counterparty

risk

on

such

derivatives

is

minimal

because

the

clearinghouse

provides

protection

against

counterparty

defaults.

For

futures

and

centrally

cleared

swaps,

the

fund

is

required

to

deposit

collateral

in

an

amount

specified

by

the

clearinghouse

and

the

clearing

firm

(margin

requirement),

and

the

margin

requirement

must

be

maintained

over

the

life

of

the

contract.

Each

clearinghouse

and

clearing

firm,

in

its

sole

discretion,

may

adjust

the

margin

requirements

applicable

to

the

fund.

Collateral may

be

in

the

form

of

cash

or

debt

securities

issued

by

the

U.S.

government

or

related

agencies.

Cash

posted

by

the

fund

is

reflected

as

cash

deposits

in

the

accompanying

financial

statements

and

generally

is

restricted

from

withdrawal

by

the

fund;

securities

posted

by

the

fund

are

so

noted

in

the

accompanying

Portfolio

of

Investments;

both

remain

in

the

fund’s

assets.

While

typically

not

sold

in

the

same

manner

as

equity

or

fixed

income

securities,

exchange-traded

or

centrally

cleared

derivatives

may

be

closed

out

only

on

the

exchange

or

clearinghouse

where

the

contracts

were

cleared.

This

ability

is

subject

to

the

liquidity

of

underlying

positions. As

of

June

30,

2024,

securities

valued

at $321,000

had

been

posted

by

the

fund

for

exchange-traded

and/or

centrally

cleared

derivatives. 

Futures

Contracts

 The

fund

is

subject

to equity

price

risk in

the

normal

course

of

pursuing

its

investment

objectives

and

uses

futures

contracts

to

help

manage

such

risk.

The

fund

may

enter

into

futures

contracts

as

an

efficient

means

of

maintaining

liquidity

while

being

invested

in

the

market,

to

facilitate

trading,

or

to

reduce

transaction

costs. A

futures

contract

provides

for

the

future

sale

by

one

party

and

purchase

by

another

of

a

specified

amount

of

a

specific

underlying

financial

instrument

at

an

agreed-upon

price,

date,

time,

and

place.

The

fund

currently

invests

only

in

exchange-traded

futures,

which

generally

are

standardized

as

to

maturity

date,

underlying

financial

instrument,

and

other

contract

terms.

Payments

are

made

or

received

by

the

fund

each

day

to

settle

daily

fluctuations

in

the

value

of

the

contract

(variation

margin),

which

reflect

changes

in

the

value

of

the

underlying

financial

instrument.

Variation

margin

is

recorded

as

unrealized

gain

or

loss

until

the

contract

is

closed.

The

value

of

a

futures

contract

included

in

net

assets

is

the

amount

of

unsettled

variation

margin;

net

variation

margin

receivable

is

reflected

as

an

asset

and

net

variation

margin

payable

is

reflected

as

a

liability

on

the

accompanying

Statement

of

Assets

and

Liabilities.

When

a

contract

is

closed,

a

realized

gain

or

loss

is

recorded

on

the

accompanying

Statement

of

Operations.

Risks

related

to

the

use

of

futures

contracts

include

possible

illiquidity

of

the

futures

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

61

markets,

contract

prices

that

can

be

highly

volatile

and

imperfectly

correlated

to

movements

in

hedged

security

values,

and

potential

losses

in

excess

of

the

fund’s

initial

investment.

During

the

six

months ended

June

30,

2024,

the

volume

of

the

fund’s

activity

in

futures,

based

on

underlying

notional

amounts,

was

generally

less

than

1%

of

net

assets.

NOTE

4

-

OTHER

INVESTMENT

TRANSACTIONS 

Consistent

with

its

investment

objective, the

fund

engages

in

the

following

practices

to

manage

exposure

to

certain

risks

and/or

to

enhance

performance.

The

investment

objective,

policies,

program,

and

risk

factors

of the

fund

are

described

more

fully

in the

fund’s prospectus

and

Statement

of

Additional

Information.

Securities

Lending

 The fund

may

lend

its

securities

to

approved

borrowers

to

earn

additional

income.

Its

securities

lending

activities

are

administered

by

a

lending

agent

in

accordance

with

a

securities

lending

agreement.

Security

loans

generally

do

not

have

stated

maturity

dates,

and

the

fund

may

recall

a

security

at

any

time.

The

fund

receives

collateral

in

the

form

of

cash

or

U.S.

government

securities.

Collateral

is

maintained

over

the

life

of

the

loan

in

an

amount

not

less

than

the

value

of

loaned

securities;

any

additional

collateral

required

due

to

changes

in

security

values

is

delivered

to

the

fund

the

next

business

day.

Cash

collateral

is

invested

in

accordance

with

investment

guidelines

approved

by

fund

management.

Additionally,

the

lending

agent

indemnifies

the

fund

against

losses

resulting

from

borrower

default.

Although

risk

is

mitigated

by

the

collateral

and

indemnification,

the

fund

could

experience

a

delay

in

recovering

its

securities

and

a

possible

loss

of

income

or

value

if

the

borrower

fails

to

return

the

securities,

collateral

investments

decline

in

value,

and

the

lending

agent

fails

to

perform.

Securities

lending

revenue

consists

of

earnings

on

invested

collateral

and

borrowing

fees,

net

of

any

rebates

to

the

borrower,

compensation

to

the

lending

agent,

and

other

administrative

costs.

In

accordance

with

GAAP,

investments

made

with

cash

collateral

are

reflected

in

the

accompanying

financial

statements,

but

collateral

received

in

the

form

of

securities

is

not.

At

June

30,

2024,

the

value

of

loaned

securities

was

$21,639,000;

the

value

of

cash

collateral

and

related

investments

was

$23,384,000.

Other 

Purchases

and

sales

of

portfolio

securities

other

than

in-kind

transactions,

if

any,

and short-term securities

aggregated $52,486,000 and

$93,607,000,

respectively,

for

the

six

months ended

June

30,

2024.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

62

NOTE

5

-

FEDERAL

INCOME

TAXES

Generally,

no

provision

for

federal

income

taxes

is

required

since

the

fund

intends

to continue

to

qualify

as

a

regulated

investment

company

under

Subchapter

M

of

the

Internal

Revenue

Code

and

distribute

to

shareholders

all

of

its taxable

income

and

gains.

Distributions

determined

in

accordance

with

federal

income

tax

regulations

may

differ

in

amount

or

character

from

net

investment

income

and

realized

gains

for

financial

reporting

purposes.

Financial

reporting

records

are

adjusted

for

permanent

book/tax

differences

to

reflect

tax

character

but

are

not

adjusted

for

temporary

differences.

The

amount

and

character

of

tax-basis

distributions

and

composition

of

net

assets

are

finalized

at

fiscal

year-end;

accordingly,

tax-basis

balances

have

not

been

determined

as

of

the

date

of

this

report. 

At

June

30,

2024,

the

cost

of

investments

(including

derivatives,

if

any)

for

federal

income

tax

purposes

was

$626,597,000.

Net

unrealized

gain

aggregated

$331,661,000

at

period-end,

of

which

$437,324,000

related

to

appreciated

investments

and

$105,663,000

related

to

depreciated

investments.

NOTE

6

-

FOREIGN TAXES

The

fund

is

subject

to

foreign

income

taxes

imposed

by

certain

countries

in

which

it

invests.

Additionally,

capital

gains

realized

upon

disposition

of

securities

issued

in

or

by

certain

foreign

countries

are

subject

to

capital

gains

tax

imposed

by

those

countries.

All

taxes

are

computed

in

accordance

with

the

applicable

foreign

tax

law,

and,

to

the

extent

permitted,

capital

losses

are

used

to

offset

capital

gains.

Taxes

attributable

to

income

are

accrued

by

the

fund

as

a

reduction

of

income.

Current

and

deferred

tax

expense

attributable

to

capital

gains

is

reflected

as

a

component

of

realized

or

change

in

unrealized

gain/

loss

on

securities

in

the

accompanying

financial

statements.

To

the

extent

that

the

fund

has

country

specific

capital

loss

carryforwards,

such

carryforwards

are

applied

against

net

unrealized

gains

when

determining

the

deferred

tax

liability.

Any

deferred

tax

liability

incurred

by

the

fund

is

included

in

either

Other

liabilities

or

Deferred

tax

liability

on

the

accompanying

Statement

of

Assets

and

Liabilities.

T.

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PRICE

Extended

Equity

Market

Index

Fund

63

NOTE

7

-

RELATED

PARTY

TRANSACTIONS

The

fund

is

managed

by

T.

Rowe

Price

Associates,

Inc.

(Price

Associates),

a

wholly

owned

subsidiary

of

T.

Rowe

Price

Group,

Inc.

(Price

Group). Price

Associates

has

entered

into

a

sub-advisory

agreement(s)

with

one

or

more

of

its

wholly

owned

subsidiaries,

to

provide

investment

advisory

services

to

the

fund. The

investment

management

agreement

between

the

fund

and

Price

Associates

provides

for

an

annual

investment

management

fee

equal

to 0.09%

of

the

fund’s

average

daily

net

assets.

The

fee

is

computed

daily

and

paid

monthly.

The fund is

subject

to

a

contractual

expense

limitation

through

the

expense

limitation

date

indicated

in

the

table

below.

This

agreement

will

continue

through

the

expense

limitation

date

indicated

in

the

table

below,

and

may

be

renewed,

revised,

or

revoked

only

with

approval

of

the

fund’s

Board.

During

the

limitation

period,

Price

Associates

is required

to

waive

or

pay

any

expenses

(excluding

interest;

expenses

related

to

borrowings,

taxes,

and

brokerage;

non-recurring,

extraordinary

expenses;

and

acquired

fund

fees

and

expenses)

that

would

otherwise

cause

the fund’s ratio

of

annualized

total

expenses

to

average

net

assets

(net

expense

ratio)

to

exceed

its

expense

limitation.

The

Fund

is

required

to

repay

Price

Associates

for

expenses

previously

waived/paid

to

the

extent

its net

assets

grow

or

expenses

decline

sufficiently

to

allow

repayment

without

causing

the fund’s net

expense

ratio

(after

the

repayment

is

taken

into

account)

to

exceed

the

lesser

of:

(1)

the

expense

limitation

in

place

at

the

time

such

amounts

were

waived;

or

(2)

the fund’s

current

expense

limitation.

However,

no

repayment

will

be

made

more

than

three

years

after

the

date

of

a

payment

or

waiver.

Pursuant

to

this

agreement,

expenses

were waived/paid

by

and/or

repaid

to

Price

Associates

during

the six

months

ended June

30,

2024 as

indicated

in

the

table

below.

At

June

30,

2024,

there

were

no

amounts

subject

to

repayment

by

the

fund.

Any

repayment

of

expenses

previously

waived/paid

by

Price

Associates

during

the

period

would

be

included

in

the

net

investment

income

and

expense

ratios

presented

on

the

accompanying

Financial

Highlights.

Expense

limitation

0.25%

Expense

limitation

date

04/30/26

(Waived)/repaid

during

the

period

($000s)

$15

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

64

In

addition, the

fund

is

subject

to

a

permanent

contractual

expense

limitation,

pursuant

to

which

Price

Associates

is

required

to

waive or

pay

any

expenses

(excluding

interest;

expenses

related

to

borrowings,

taxes,

and

brokerage;

non-

recurring,

extraordinary

expenses;

and

acquired

fund

fees

and

expenses)

that

would

otherwise

cause

the fund’s

ratio

of

annualized

total

expenses

to

average

net

assets

(net

expense

ratio)

to

exceed

0.35%.

The

agreement

may

only

be

terminated

with

approval

by

the

fund’s

shareholders.

The

fund is

required

to

repay

Price

Associates

for

expenses

previously

waived/paid

to

the

extent

the fund’s

net

assets

grow

or

expenses

decline

sufficiently

to

allow

repayment

without

causing

the fund’s

net

expense

ratio

(after

the

repayment

is

taken

into

account)

to

exceed

the

lesser

of:

(1)

the

expense

limitation

in

place

at

the

time

such

amounts

were

waived;

or

(2)

the fund’s

current

expense

limitation.

However,

no

repayment

will

be

made

more

than

three

years

after

the

date

of

a

payment

or

waiver. No

management

fees

were

waived

or

any

expenses

paid

under

this

arrangement

for

the

six

months ended

June

30,

2024.

In

addition,

the

fund

has

entered

into

service

agreements

with

Price

Associates

and

two

wholly

owned

subsidiaries

of

Price

Associates,

each

an

affiliate

of

the

fund

(collectively,

Price).

Price

Associates

provides

certain

accounting

and

administrative

services

to

the

fund.

T.

Rowe

Price

Services,

Inc.

provides

shareholder

and

administrative

services

in

its

capacity

as

the

fund’s

transfer

and

dividend-disbursing

agent.

T.

Rowe

Price

Retirement

Plan

Services,

Inc.

provides

subaccounting

and

recordkeeping

services

for

certain

retirement

accounts

invested

in

the

fund.

For

the

six

months

ended

June

30,

2024,

expenses

incurred

pursuant

to

these

service

agreements

were

$58,000

for

Price

Associates;

$307,000

for

T.

Rowe

Price

Services,

Inc.;

and

$38,000

for

T.

Rowe

Price

Retirement

Plan

Services,

Inc.

All

amounts

due

to

and

due

from

Price,

exclusive

of

investment

management

fees

payable,

are

presented

net

on

the

accompanying

Statement

of

Assets

and

Liabilities.

T.

Rowe

Price

Investment

Services,

Inc.

(Investment

Services)

serves

as

distributor

to

the

fund.

Pursuant

to

an

underwriting

agreement,

no

compensation

for

any

distribution

services

provided

is

paid

to

Investment

Services

by

the

fund

(except

for

12b-1

fees

under

a

Board-approved

Rule

12b-1

plan).

The fund

may

invest

its

cash

reserves

in

certain

open-end

management

investment

companies

managed

by

Price

Associates

and

considered

affiliates

of

the

fund:

the

T.

Rowe

Price

Government

Reserve

Fund

or

the

T.

Rowe

Price

Treasury

Reserve

Fund,

organized

as

money

market

funds

(together,

the

Price

Reserve

Funds).

The

Price

Reserve

Funds

are

offered

as

short-term

investment

options

to

mutual

funds,

trusts,

and

other

accounts

managed

by

Price

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

65

Associates

or

its

affiliates

and

are

not

available

for

direct

purchase

by

members

of

the

public.

Cash

collateral

from

securities

lending,

if

any,

is

invested

in

the

T.

Rowe

Price

Government

Reserve Fund. The

Price

Reserve

Funds

pay

no

investment

management

fees.

The fund may

participate

in

securities

purchase

and

sale

transactions

with

other

funds

or

accounts

advised

by

Price

Associates

(cross

trades),

in

accordance

with

procedures

adopted

by the

fund’s

Board

and

Securities

and

Exchange

Commission

rules,

which

require,

among

other

things,

that

such

purchase

and

sale

cross

trades

be

effected

at

the

independent

current

market

price

of

the

security.

During

the

six

months

ended

June

30,

2024,

the

fund

had

no

purchases

or

sales

cross

trades

with

other

funds

or

accounts

advised

by

Price

Associates.

NOTE

8

-

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

66

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

Each

year,

the

fund’s

Board

of

Directors

(Board)

considers

the

continuation

of

the

investment

management

agreement

(Advisory

Contract)

between

the

fund

and

its

investment

adviser,

T.

Rowe

Price

Associates,

Inc.

(Adviser),

as

well

as

the

investment

subadvisory

agreement

(Subadvisory

Contract)

that

the

Adviser

has

entered

into

with

T.

Rowe

Price

International

Ltd

(Subadviser)

on

behalf

of

the

fund.

In

that

regard,

at

a

meeting

held

on

March

11–12,

2024

(Meeting),

the

Board,

including

all

of

the

fund’s

independent

directors

present

in

person

at

the

Meeting,

approved

the

continuation

of

the

fund’s

Advisory

Contract

and

Subadvisory

Contract.

At

the

Meeting,

the

Board

considered

the

factors

and

reached

the

conclusions

described

below

relating

to

the

selection

of

the

Adviser

and

Subadviser

and

the

approval

of

the

Advisory

Contract

and

Subadvisory

Contract.

The

independent

directors

were

assisted

in

their

evaluation

of

the

Advisory

Contract

and

Subadvisory

Contract

by

independent

legal

counsel

from

whom

they

received

separate

legal

advice

and

with

whom

they

met

separately.

In

providing

information

to

the

Board,

the

Adviser

was

guided

by

a

detailed

set

of

requests

for

information

submitted

by

independent

legal

counsel

on

behalf

of

the

independent

directors.

In

considering

and

approving

the

continuation

of

the

Advisory

Contract

and

Subadvisory

Contract,

the

Board

considered

the

information

it

believed

was

relevant,

including,

but

not

limited

to,

the

information

discussed

below.

The

Board

considered

not

only

the

specific

information

presented

in

connection

with

the

Meeting,

but

also

the

knowledge

gained

over

time

through

interaction

with

the

Adviser

and

Subadviser

about

various

topics.

The

Board

meets

regularly

and,

at

each

of

its

meetings,

covers

an

extensive

agenda

of

topics

and

materials

and

considers

factors

that

are

relevant

to

its

annual

consideration

of

the

renewal

of

the

T.

Rowe

Price

funds’

advisory

contracts,

including

performance

and

the

services

and

support

provided

to

the

funds

and

their

shareholders.

Services

Provided

by

the

Adviser

and

Subadviser

The

Board

considered

the

nature,

quality,

and

extent

of

the

services

provided

to

the

fund

by

the

Adviser

and

Subadviser.

These

services

included,

but

were

not

limited

to,

directing

the

fund’s

investments

in

accordance

with

its

investment

program

and

the

overall

management

of

the

fund’s

portfolio,

as

well

as

a

variety

of

related

activities

such

as

financial,

investment

operations,

and

administrative

services;

compliance;

maintaining

the

fund’s

records

and

registrations;

and

shareholder

communications.

The

Board

also

reviewed

the

background

and

experience

of

the

Adviser’s

and

Subadviser’s

senior

management

teams

and

investment

personnel

involved

in

the

management

of

the

fund,

as

well

as

the

Adviser’s

compliance

record.

The

Board

concluded

that

the

information

it

considered

with

respect

to

the

nature,

quality,

and

extent

of

the

services

provided

by

the

Adviser

and

Subadviser,

as

well

as

the

other

factors

considered

at

the

Meeting,

supported

the

Board’s

approval

of

the

continuation

of

the

Advisory

Contract

and

Subadvisory

Contract.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

67

Investment

Performance

of

the

Fund

The

Board

took

into

account

discussions

with

the

Adviser

and

detailed

reports

that

it

regularly

receives

throughout

the

year

on

relative

and

absolute

performance

for

the

T.

Rowe

Price

funds.

In

connection

with

the

Meeting,

the

Board

reviewed

information

provided

by

the

Adviser

that

compared

the

fund’s

total

returns,

as

well

as

a

wide

variety

of

other

previously

agreed-upon

performance

measures

and

market

data,

against

relevant

benchmark

indexes

and

peer

groups

of

funds

with

similar

investment

programs

for

various

periods

through

December

31,

2023.

Additionally,

the

Board

reviewed

the

fund’s

relative

performance

information

as

of

September

30,

2023,

which

ranked

the

fund’s

returns

for

various

periods

against

a

universe

of

funds

with

similar

investment

programs

selected

by

Broadridge,

an

independent

provider

of

mutual

fund

data.

In

the

course

of

its

deliberations,

the

Board

considered

performance

information

provided

throughout

the

year

and

in

connection

with

the

Advisory

Contract

review

at

the

Meeting,

as

well

as

information

provided

during

investment

review

meetings

conducted

with

portfolio

managers

and

senior

investment

personnel

during

the

course

of

the

year

regarding

the

fund’s

performance.

The

Board

also

considered

relevant

factors,

such

as

overall

market

conditions

and

trends

that

could

adversely

impact

the

fund’s

performance,

the

length

of

the

fund’s

performance

track

record,

and

how

closely

the

fund’s

strategies

align

with

its

benchmarks

and

peer

groups.

The

Board

concluded

that

the

information

it

considered

with

respect

to

the

fund’s

performance,

as

well

as

the

other

factors

considered

at

the

Meeting,

supported

the

Board’s

approval

of

the

continuation

of

the

Advisory

Contract

and

Subadvisory

Contract.

Costs,

Benefits,

Profits,

and

Economies

of

Scale

The

Board

reviewed

detailed

information

regarding

the

revenues

received

by

the

Adviser

under

the

Advisory

Contract

and

other

direct

and

indirect

benefits

that

the

Adviser

(and

its

affiliates,

including

the

Subadviser)

may

have

realized

from

its

relationship

with

the

fund.

In

considering

soft-dollar

arrangements

pursuant

to

which

research

may

be

received

from

broker-dealers

that

execute

the

fund’s

portfolio

transactions,

the

Board

noted

that

during

2023

the

Adviser

paid

the

costs

of

research

services

for

all

client

accounts

that

it

advises,

including

the

T.

Rowe

Price

funds.

However,

effective

January

1,

2024,

the

Adviser

will

begin

using

brokerage

commissions

in

connection

with

certain

T.

Rowe

Price

funds’

securities

transactions

to

pay

for

research

when

permissible.

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

68

The

Board

received

information

on

the

estimated

costs

incurred

and

profits

realized

by

the

Adviser

from

managing

the

T.

Rowe

Price

funds.

The

Board

also

reviewed

estimates

of

the

profits

realized

from

managing

the

fund

in

particular,

and

the

Board

concluded

that

the

Adviser’s

profits

were

reasonable

in

light

of

the

services

provided

to

the

fund.

The

Board

also

considered

whether

the

fund

benefits

under

the

fee

levels

set

forth

in

the

Advisory

Contract

or

otherwise

from

any

economies

of

scale

realized

by

the

Adviser.

Under

the

Advisory

Contract,

the

fund

pays

a

fee

to

the

Adviser

for

investment

management

services

based

on

the

fund’s

average

daily

net

assets

and

the

fund

pays

its

own

expenses

of

operations.

Under

the

Subadvisory

Contract,

the

Adviser

may

pay

the

Subadviser

up

to

60%

of

the

advisory

fees

that

the

Adviser

receives

from

the

fund.

The

fund’s

shareholders

benefit

from

potential

economies

of

scale

through

a

decline

in

certain

operating

expenses

as

the

fund

grows

in

size.

However,

the

fund

is

also

subject

to

contractual

expense

limitations

that

require

the

Adviser

to

waive

its

fees

and/or

bear

any

expenses

that

would

otherwise

cause

the

fund’s

expenses

to

exceed

a

certain

percentage

based

on

the

fund’s

net

assets.

The

expense

limitation

mitigates

the

potential

for

an

increase

in

total

operating

expenses

above

a

certain

level

that

could

impact

shareholders.

In

addition,

the

Board

noted

that

the

fund

potentially

shares

in

indirect

economies

of

scale

through

the

Adviser’s

and

Subadviser’s

ongoing

investments

in

their

business

in

support

of

the

T.

Rowe

Price

funds,

including

investments

in

trading

systems,

technology,

and

regulatory

support

enhancements,

and

the

ability

to

possibly

negotiate

lower

fee

arrangements

with

third-party

service

providers.

The

Board

concluded

that

the

advisory

fee

structure

for

the

fund

provides

for

a

reasonable

sharing

of

benefits

from

any

economies

of

scale

with

the

fund’s

investors.

Fees

and

Expenses

The

Board

was

provided

with

information

regarding

industry

trends

in

management

fees

and

expenses.

Among

other

things,

the

Board

reviewed

data

for

peer

groups

that

were

compiled

by

Broadridge,

which

compared:

(i)

contractual

management

fees,

actual

management

fees,

nonmanagement

expenses,

and

total

expenses

of

the

fund

with

a

group

of

competitor

funds

selected

by

Broadridge

(Expense

Group)

and

(ii)

actual

management

fees,

nonmanagement

expenses,

and

total

expenses

of

the

fund

with

a

broader

set

of

funds

within

the

Lipper

investment

classification

(Expense

Universe).

The

Board

considered

the

fund’s

contractual

management

fee

rate,

actual

management

fee

rate

(which

reflects

the

management

fees

actually

received

from

the

fund

by

the

Adviser

after

any

applicable

waivers,

reductions,

or

reimbursements),

operating

expenses,

and

total

expenses

(which

reflect

the

net

total

expense

ratio

of

the

fund

after

any

waivers,

reductions,

or

reimbursements)

in

comparison

with

the

information

for

the

Broadridge

peer

groups.

Broadridge

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

69

generally

constructed

the

peer

groups

by

seeking

the

most

comparable

funds

based

on

similar

investment

classifications

and

objectives,

expense

structure,

asset

size,

and

operating

components

and

attributes

and

ranked

funds

into

quintiles,

with

the

first

quintile

representing

the

funds

with

the

lowest

relative

expenses

and

the

fifth

quintile

representing

the

funds

with

the

highest

relative

expenses,

although

there

were

not

sufficient

funds

in

the

Expense

Group

to

rank

within

quintiles.

The

information

provided

to

the

Board

indicated

that

the

fund’s

contractual

management

fee

ranked

third

out

of

five

funds

(Expense

Group),

the

fund’s

actual

management

fee

rate

ranked

fourth

out

of

five

funds

(Expense

Group)

and

in

the

third

quintile

(Expense

Universe),

and

the

fund’s

total

expenses

ranked

fourth

out

of

five

funds

(Expense

Group)

and

in

the

third

quintile

(Expense

Universe).

The

Board

also

reviewed

the

fee

schedules

for

other

investment

portfolios

with

similar

mandates

that

are

advised

or

subadvised

by

the

Adviser

and

its

affiliates,

including

separately

managed

accounts

for

institutional

and

individual

investors;

subadvised

funds;

and

other

sponsored

investment

portfolios,

including

collective

investment

trusts

and

pooled

vehicles

organized

and

offered

to

investors

outside

the

United

States.

Management

provided

the

Board

with

information

about

the

Adviser’s

responsibilities

and

services

provided

to

subadvisory

and

other

institutional

account

clients,

including

information

about

how

the

requirements

and

economics

of

the

institutional

business

are

fundamentally

different

from

those

of

the

proprietary

mutual

fund

business.

The

Board

considered

information

showing

that

the

Adviser’s

mutual

fund

business

is

generally

more

complex

from

a

business

and

compliance

perspective

than

its

institutional

account

business

and

considered

various

relevant

factors,

such

as

the

broader

scope

of

operations

and

oversight,

more

extensive

shareholder

communication

infrastructure,

greater

asset

flows,

heightened

business

risks,

and

differences

in

applicable

laws

and

regulations

associated

with

the

Adviser’s

proprietary

mutual

fund

business.

In

assessing

the

reasonableness

of

the

fund’s

management

fee

rate,

the

Board

considered

the

differences

in

the

nature

of

the

services

required

for

the

Adviser

to

manage

its

mutual

fund

business

versus

managing

a

discrete

pool

of

assets

as

a

subadviser

to

another

institution’s

mutual

fund

or

for

an

institutional

account

and

that

the

Adviser

generally

performs

significant

additional

services

and

assumes

greater

risk

in

managing

the

fund

and

other

T.

Rowe

Price

funds

than

it

does

for

institutional

account

clients,

including

subadvised

funds.

On

the

basis

of

the

information

provided

and

the

factors

considered,

the

Board

concluded

that

the

fees

paid

by

the

fund

under

the

Advisory

Contract

are

reasonable.

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

70

Approval

of

the

Advisory

Contract

and

Subadvisory

Contract

As

noted,

the

Board

approved

the

continuation

of

the

Advisory

Contract

and

Subadvisory

Contract.

No

single

factor

was

considered

in

isolation

or

to

be

determinative

to

the

decision.

Rather,

the

Board

concluded,

in

light

of

a

weighting

and

balancing

of

all

factors

considered,

that

it

was

in

the

best

interests

of

the

fund

and

its

shareholders

for

the

Board

to

approve

the

continuation

of

the

Advisory

Contract

and

Subadvisory

Contract

(including

the

fees

to

be

charged

for

services

thereunder).

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

(continued)

100

East

Pratt

Street

Baltimore,

MD

21202

T.

Rowe

Price

Investment

Services,

Inc.

Call

1-800-225-5132

to

request

a

prospectus

or

summary

prospectus;

each

includes

investment

objectives,

risks,

fees,

expenses,

and

other

information

that

you

should

read

and

consider

carefully

before

investing.

F124-051

8/24

Item 8. Changes in and Disagreements with Accountants for Open-End Management Investment Companies.

Not applicable.

Item 9. Proxy Disclosures for Open-End Management Investment Companies.

Not applicable.

Item 10. Remuneration Paid to Directors, Officers, and Others of Open-End Management Investment Companies.

Remuneration paid to Directors is included in Item 7 of this Form N-CSR and/or the Statement of Additional Information.

Item 11. Statement Regarding Basis for Approval of Investment Advisory Contract.

If applicable, see Item 7.

Item 12. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable.

Item 13. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable.

Item 14. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable.

Item 15. Submission of Matters to a Vote of Security Holders.

There has been no change to the procedures by which shareholders may recommend nominees to the registrant’s board of directors.

Item 16. Controls and Procedures.

(a)  The registrant’s principal executive officer and principal financial officer have evaluated the registrant’s disclosure controls and procedures within 90 days of this filing and have concluded that the registrant’s disclosure controls and procedures were effective, as of that date, in ensuring that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized, and reported timely.

(b)  The registrant’s principal executive officer and principal financial officer are aware of no change in the registrant’s internal control over financial reporting that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 17. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

Not applicable.

Item 18. Recovery of Erroneously Awarded Compensation.

Not applicable.

Item 19. Exhibits.

(a)(1)	The registrant’s code of ethics pursuant to Item 2 of Form N-CSR is filed with the registrant’s annual Form N-CSR.
(2)	Listing standards relating to recovery of erroneously awarded compensation: Not applicable.
(3)	Separate certifications by the registrant’s principal executive officer and principal financial officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(a) under the Investment Company Act of 1940, are attached.
(b)	A certification by the registrant’s principal executive officer and principal financial officer, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and required by Rule 30a-2(b) under the Investment Company Act of 1940, is attached.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

T. Rowe Price Extended Equity Market Index Fund
By	/s/ David Oestreicher
	David Oestreicher
	Principal Executive Officer
Date	August 20, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By	/s/ David Oestreicher
	David Oestreicher
	Principal Executive Officer
Date	August 20, 2024

By	/s/ Alan S. Dupski
	Alan S. Dupski
	Principal Financial Officer
Date	August 20, 2024