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, 2023

Item 1. Reports to Shareholders

(a) Report pursuant to Rule 30e-1

Market

Commentary

Portfolio

Summary

Fund

Expense

Example

Financial

Highlights

Portfolio

of

Investments

Financial

Statements

and

Notes

Additional

Fund

Information

June

30,

2023

SemiAnnual

Report

T.

ROWE

PRICE

Equity

Market

Index

Funds

For

more

insights

from

T.

Rowe

Price

investment

professionals,

go

to

troweprice.com

.

T.

ROWE

PRICE

Equity

Market

Index

Funds

Log

in

to

your

account

at

troweprice.com

for

more

information.

*

Certain

mutual

fund

accounts

that

are

assessed

an

annual

account

service

fee

can

also

save

money

by

switching

to

e-delivery.

T.

ROWE

PRICE

Equity

Market

Index

Funds

Market

Commentary

1

Dear

Shareholder

Most

major

global

stock

and

bond

indexes

produced

positive

returns

during

the

first

half

of

your

fund’s

fiscal

year,

the

six-month

period

ended

June

30,

2023.

Despite

turmoil

in

the

banking

sector

and

a

protracted

debt

ceiling

standoff,

markets

were

resilient

as

growth

remained

positive

in

the

major

economies

and

corporate

earnings

results

came

in

stronger

than

expected.

For

the

six-month

period,

the

technology-oriented

Nasdaq

Composite

Index

gained

more

than

30%,

the

strongest

result

of

the

major

benchmarks,

as

tech

companies

benefited

from

investor

enthusiasm

for

artificial

intelligence

applications.

Growth

stocks

outperformed

value

shares,

and

developed

market

stocks

generally

outpaced

their

emerging

market

counterparts.

Currency

movements

were

mixed

over

the

period,

although

a

weaker

dollar

versus

major

European

currencies

was

beneficial

for

U.S.

investors

in

European

securities.

Within

the

S&P

500

Index,

the

information

technology,

communication

services,

and

consumer

discretionary

sectors

were

all

lifted

by

the

tech

rally

and

recorded

significant

gains.

Conversely,

the

defensive

utilities

sector

had

the

weakest

returns

in

the

growth-focused

environment,

and

the

energy

sector

also

lost

ground

amid

declining

oil

prices.

The

financials

sector

partly

recovered

from

the

failure

of

three

large

regional

banks

during

the

period

but

still

finished

with

modest

losses.

Cheaper

oil

contributed

to

slowing

inflation,

although

core

inflation

readings—

which

exclude

volatile

food

and

energy

prices—remained

stubbornly

high.

In

response,

the

Federal

Reserve

raised

its

short-term

lending

benchmark

rate

to

a

target

range

of

5.00%

to

5.25%

by

early

May,

the

highest

level

since

2007.

The

Fed

held

rates

steady

at

its

June

meeting,

but

policymakers

indicated

that

two

more

rate

hikes

could

come

by

the

end

of

the

year.

In

the

fixed

income

market,

returns

were

generally

positive

across

most

sectors

as

investors

benefited

from

the

higher

interest

rates

that

have

become

available

over

the

past

year.

Investment-grade

corporate

bonds

were

supported

by

generally

solid

balance

sheets

and

were

among

the

strongest

performers.

Global

economies

and

markets

showed

surprising

resilience

in

recent

months,

but,

moving

into

the

second

half

of

2023,

we

believe

investors

could

face

potential

challenges.

The

impact

of

the

Fed’s

rate

hikes

has

yet

to

be

fully

felt

in

the

economy,

and

while

the

regional

banking

turmoil

appears

to

have

been

contained

by

the

swift

actions

of

regulators,

it

could

weigh

on

credit

conditions.

Moreover,

market

consensus

still

seems

to

point

to

a

coming

recession,

although

hopes

have

emerged

that

such

a

downturn

could

be

more

modest.

T.

ROWE

PRICE

Equity

Market

Index

Funds

2

We

believe

this

environment

makes

skilled

active

management

a

critical

tool

for

identifying

risks

and

opportunities,

and

our

investment

teams

will

continue

to

use

fundamental

research

to

identify

securities

that

can

add

value

to

your

portfolio

over

the

long

term.

You

may

notice

that

this

report

no

longer

contains

the

commentary

on

your

fund’s

performance

and

positioning

that

we

previously

included

in

the

semiannual

shareholder

letters.

The

Securities

and

Exchange

Commission

(SEC)

adopted

new

rules

in

January

that

will

require

fund

reports

to

transition

to

a

new

format

known

as

a

Tailored

Shareholder

Report.

This

change

will

require

a

much

more

concise

summary

of

performance

rather

than

the

level

of

detail

we

have

provided

historically

while

also

aiming

to

be

more

visually

engaging.

As

we

prepare

to

make

changes

to

the

annual

reports

to

meet

the

new

report

regulatory

requirements

by

mid-2024,

we

felt

the

time

was

right

to

discontinue

the

optional

six-month

semiannual

fund

letter

to

focus

on

the

changes

to

come.

While

semiannual

fund

letters

will

no

longer

be

produced,

you

may

continue

to

access

current

fund

information

as

well

as

insights

and

perspectives

from

our

investment

team

on

our

personal

investing

website.

Thank

you

for

your

continued

confidence

in

T.

Rowe

Price.

Sincerely, 

Robert

Sharps

CEO

and

President

T.

ROWE

PRICE

Equity

Market

Index

Funds

Portfolio

Summary

3

EQUITY

INDEX

500

FUND

SECTOR

DIVERSIFICATION

Periods

Ended

12/31/22

6/30/23

Information

Technology

25.5‌%

28.1‌%

Health

Care

15.7‌

13.4‌

Financials

11.6‌

12.4‌

Consumer

Discretionary

9.8‌

10.6‌

Industrials

and

Business

Services

8.8‌

8.7‌

Communication

Services

7.2‌

8.3‌

Consumer

Staples

7.2‌

6.6‌

Energy

5.2‌

4.1‌

Utilities

3.2‌

2.5‌

Materials

2.7‌

2.5‌

Real

Estate

2.7‌

2.5‌

Other

and

Reserves

0.4‌

0.3‌

Total

100.0‌%

100.0‌%

Historical

weightings

reflect

current

industry/sector

classifications.

T.

ROWE

PRICE

Equity

Market

Index

Funds

4

TOTAL

EQUITY

MARKET

INDEX

FUND

SECTOR

DIVERSIFICATION

Periods

Ended

12/31/22

6/30/23

Information

Technology

24.3‌%

26.4‌%

Health

Care

15.5‌

13.4‌

Financials

12.2‌

12.9‌

Consumer

Discretionary

9.9‌

10.8‌

Industrials

and

Business

Services

9.8‌

10.0‌

Communication

Services

6.7‌

7.7‌

Consumer

Staples

6.6‌

6.1‌

Energy

5.2‌

4.1‌

Real

Estate

3.3‌

2.9‌

Materials

3.0‌

2.7‌

Utilities

3.0‌

2.5‌

Other

and

Reserves

0.5‌

0.5‌

Total

100.0‌%

100.0‌%

Historical

weightings

reflect

current

industry/sector

classifications.

T.

ROWE

PRICE

Equity

Market

Index

Funds

5

EXTENDED

EQUITY

MARKET

INDEX

FUND

SECTOR

DIVERSIFICATION

Periods

Ended

12/31/22

6/30/23

Industrials

and

Business

Services

15.8‌%

18.1‌%

Information

Technology

18.0‌

17.7‌

Financials

16.0‌

15.6‌

Health

Care

13.8‌

12.9‌

Consumer

Discretionary

11.3‌

12.1‌

Real

Estate

6.4‌

5.9‌

Energy

4.9‌

4.3‌

Materials

4.3‌

4.0‌

Communication

Services

3.7‌

4.1‌

Consumer

Staples

3.0‌

2.8‌

Utilities

2.2‌

1.9‌

Other

and

Reserves

0.6‌

0.6‌

Total

100.0‌%

100.0‌%

Historical

weightings

reflect

current

industry/sector

classifications.

T.

ROWE

PRICE

Equity

Market

Index

Funds

6

PORTFOLIO

HIGHLIGHTS

TWENTY-FIVE

LARGEST

HOLDINGS

Equity

Index

500

Fund

Percent

of

Net

Assets

6/30/23

Apple

7.7‌%

Microsoft

6.8‌ 

Alphabet

3.6‌ 

Amazon.com

3.1‌ 

NVIDIA

2.8‌ 

Tesla

1.9‌

Meta

Platforms

1.7‌

Berkshire

Hathaway

1.6‌

UnitedHealth

Group

1.2‌

Exxon

Mobil

1.2‌

Johnson

&

Johnson

1.2‌

JPMorgan

Chase

1.1‌

Visa

1.0‌

Eli

Lilly

1.0‌

Broadcom

1.0‌

Procter

&

Gamble

1.0‌

Mastercard

0.9‌

Home

Depot

0.8‌

Merck

0.8‌

Chevron

0.7‌

PepsiCo

0.7‌

Costco

Wholesale

0.6‌

AbbVie

0.6‌

Coca-Cola

0.6‌

Adobe

0.6‌

Total

44.2‌%

Note:

The

information

shown

does

not

reflect

any

exchange-traded

funds

(ETFs),

cash

reserves,

or

collateral

for

securities

lending

that

may

be

held

in

the

portfolio.

T.

ROWE

PRICE

Equity

Market

Index

Funds

7

PORTFOLIO

HIGHLIGHTS

TWENTY-FIVE

LARGEST

HOLDINGS

Total

Equity

Market

Index

Fund

Percent

of

Net

Assets

6/30/23

Apple

6.6‌%

Microsoft

5.8‌ 

Alphabet

3.1‌ 

Amazon.com

2.7‌ 

NVIDIA

2.4‌ 

Tesla

1.6‌

Meta

Platforms

1.5‌

Berkshire

Hathaway

1.4‌

UnitedHealth

Group

1.0‌

Exxon

Mobil

1.0‌

JPMorgan

Chase

1.0‌

Johnson

&

Johnson

1.0‌

Visa

0.9‌

Eli

Lilly

0.9‌

Broadcom

0.8‌

Procter

&

Gamble

0.8‌

Mastercard

0.8‌

Home

Depot

0.7‌

Merck

0.7‌

Chevron

0.6‌

PepsiCo

0.6‌

Costco

Wholesale

0.6‌

AbbVie

0.6‌

Coca-Cola

0.6‌

Walmart

0.5‌

Total

38.2‌%

Note:

The

information

shown

does

not

reflect

any

exchange-traded

funds

(ETFs),

cash

reserves,

or

collateral

for

securities

lending

that

may

be

held

in

the

portfolio.

T.

ROWE

PRICE

Equity

Market

Index

Funds

8

PORTFOLIO

HIGHLIGHTS

TWENTY-FIVE

LARGEST

HOLDINGS

Extended

Equity

Market

Index

Fund

Percent

of

Net

Assets

6/30/23

Uber

Technologies

1.4‌%

Blackstone

1.0‌ 

Marvell

Technology

0.8‌ 

Airbnb

0.8‌ 

Snowflake

0.8‌ 

Workday

0.8‌

Lululemon

Athletica

0.7‌

Cheniere

Energy

0.6‌

Trade

Desk

0.6‌

Apollo

Global

Management

0.6‌

Block

0.5‌

Ferguson

0.5‌

Crowdstrike

Holdings

0.5‌

KKR

0.5‌

Veeva

Systems

0.5‌

MongoDB

0.5‌

VMware

0.5‌

Seagen

0.4‌

HubSpot

0.4‌

Atlassian

0.4‌

Palantir

Technologies

0.4‌

Datadog

0.4‌

Alnylam

Pharmaceuticals

0.4‌

Horizon

Therapeutics

0.4‌

DoorDash

0.3‌

Total

14.7‌%

Note:

The

information

shown

does

not

reflect

any

exchange-traded

funds

(ETFs),

cash

reserves,

or

collateral

for

securities

lending

that

may

be

held

in

the

portfolio.

T.

ROWE

PRICE

Equity

Market

Index

Funds

9

FUND

EXPENSE

EXAMPLE

As

a

mutual

fund

shareholder,

you

may

incur

two

types

of

costs:

(1)

transaction

costs,

such

as

redemption

fees

or

sales

loads,

and

(2)

ongoing

costs,

including

management

fees,

distribution

and

service

(12b-1)

fees,

and

other

fund

expenses.

The

following

example

is

intended

to

help

you

understand

your

ongoing

costs

(in

dollars)

of

investing

in

the

fund

and

to

compare

these

costs

with

the

ongoing

costs

of

investing

in

other

mutual

funds.

The

example

is

based

on

an

investment

of

$1,000

invested

at

the

beginning

of

the

most

recent

six-month

period

and

held

for

the

entire

period.

Please note

that

the

Equity

Index

500

Fund

has

three

share

classes:

The

original

share

class

(Investor

Class)

charges

no

distribution

and

service

(12b-1)

fee,

I

Class

shares

are

also

available

to

institutionally

oriented

clients

and

impose

no

12b-1

or

administrative

fee

payment,

and

Z

Class

shares

are

offered

only

to

funds

advised

by

T.

Rowe

Price

and

other

advisory

clients

of

T.

Rowe

Price

or

its

affiliates

that

are

subject

to

a

contractual

fee

for

investment

management

services

and

impose

no

12b-1

fee

or

administrative

fee

payment.

Each

share

class

is

presented

separately

in

the

table.

Actual

Expenses

The

first

line

of

the

following

table

(Actual)

provides

information

about

actual

account

values

and

actual

expenses.

You

may

use

the

information

on

this

line,

together

with

your

account

balance,

to

estimate

the

expenses

that

you

paid

over

the

period.

Simply

divide

your

account

value

by

$1,000

(for

example,

an

$8,600

account

value

divided

by

$1,000

=

8.6),

then

multiply

the

result

by

the

number

on

the

first

line

under

the

heading

“Expenses

Paid

During

Period”

to

estimate

the

expenses

you

paid

on

your

account

during

this

period. 

Hypothetical

Example

for

Comparison

Purposes

The

information

on

the

second

line

of

the

table

(Hypothetical)

is

based

on

hypothetical

account

values

and

expenses

derived

from

the

fund’s

actual

expense

ratio

and

an

assumed

5%

per

year

rate

of

return

before

expenses

(not

the

fund’s

actual

return).

You

may

compare

the

ongoing

costs

of

investing

in

the

fund

with

other

funds

by

contrasting

this

5%

hypothetical

example

and

the

5%

hypothetical

examples

that

appear

in

the

shareholder

reports

of

the

other

funds.

The

hypothetical

account

values

and

expenses

may

not

be

used

to

estimate

the

actual

ending

account

balance

or

expenses

you

paid

for

the

period.

Note:

T.

Rowe

Price

charges

an

account

service

fee

that

is

not

included

in

the

accompanying

table.

The

account

service

fee

is

charged

on

a

quarterly

basis,

usually

during

the

last

week

of

a

calendar

quarter,

and

applies

to

accounts

with

balances

below

$10,000

on

the

day

of

the

assessment.

The

fee

is

charged

to

accounts

that

fall

below

$10,000

for

any

reason,

including

market

fluctuations,

redemptions,

or

exchanges.

When

an

account

with

less

than

$10,000

is

closed

either

through

redemption

or

exchange,

the

fee

is

charged

and

deducted

from

the

proceeds.

The

fee

applies

to

IRAs

but

not

to

retirement

plans

directly

registered

with

T.

Rowe

Price

Services

or

accounts

maintained

by

intermediaries

through

NSCC

®

Networking.

If

you

are

subject

to

the

fee,

keep

it

in

mind

when

you

are

estimating

the

ongoing

expenses

of

investing

in

the

fund

and

when

comparing

the

expenses

of

this

fund

with

other

funds.

You

should

also

be

aware

that

the

expenses

shown

in

the

table

highlight

only

your

ongoing

costs

and

do

not

reflect

any

transaction

costs,

such

as

redemption

fees

or

sales

loads.

Therefore,

the

second

line

of

the

table

is

useful

in

comparing

ongoing

costs

only

and

will

not

help

you

determine

the

relative

total

costs

of

owning

different

funds.

To

the

extent

a

fund

charges

transaction

costs,

however,

the

total

cost

of

owning

that

fund

is

higher.

T.

ROWE

PRICE

Equity

Market

Index

Funds

10

EQUITY

INDEX

500

FUND

Beginning

Account

Value

1/1/23

Ending

Account

Value

6/30/23

Expenses

Paid

During

Period*

1/1/23

to

6/30/23

Investor

Class

Actual

$1,000.00

$1,167.90

$1.02

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,023.85

  0.95

I

Class

Actual

  1,000.00

  1,168.70

  0.27

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,024.55

  0.25

Z

Class

Actual

  1,000.00

  1,169.00

  0.00

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,024.79

  0.00

*

Expenses

are

equal

to

the

fund’s

annualized

expense

ratio

for

the

6-month

period,

multiplied

by

the

average

account

value

over

the

period,

multiplied

by

the

number

of

days

in

the

most

recent

fiscal

half

year

(181),

and

divided

by

the

days

in

the

year

(365)

to

reflect

the

half-year

period.

The

annualized

expense

ratio

of

the

1

Investor

Class

was

0.19%,

the

2

I Class

was

0.05%,

and

the

3

Z Class

was

0.00%.

TOTAL

EQUITY

MARKET

INDEX

FUND

Beginning

Account

Value

1/1/23

Ending

Account

Value

6/30/23

Expenses

Paid

During

Period*

1/1/23

to

6/30/23

Actual

$1,000.00

$1,163.30

$1.07

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,023.80

  1.00

*

Expenses

are

equal

to

the

fund’s

annualized

expense

ratio

for

the

6-month

period

(0.20%),

multiplied

by

the

average

account

value

over

the

period,

multiplied

by

the

number

of

days

in

the

most

recent

fiscal

half

year

(181),

and

divided

by

the

days

in

the

year

(365)

to

reflect

the

half-year

period.

FUND

EXPENSE

EXAMPLE

(CONTINUED)

T.

ROWE

PRICE

Equity

Market

Index

Funds

11

EXTENDED

EQUITY

MARKET

INDEX

FUND

Beginning

Account

Value

1/1/23

Ending

Account

Value

6/30/23

Expenses

Paid

During

Period*

1/1/23

to

6/30/23

Actual

$1,000.00

$1,125.20

$1.32

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,023.55

  1.25

*

Expenses

are

equal

to

the

fund’s

annualized

expense

ratio

for

the

6-month

period

(0.25%),

multiplied

by

the

average

account

value

over

the

period,

multiplied

by

the

number

of

days

in

the

most

recent

fiscal

half

year

(181),

and

divided

by

the

days

in

the

year

(365)

to

reflect

the

half-year

period.

FUND

EXPENSE

EXAMPLE

(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.

C50-051

8/23

Market

Commentary

Portfolio

Summary

Fund

Expense

Example

Financial

Highlights

Portfolio

of

Investments

Financial

Statements

and

Notes

Additional

Fund

Information

June

30,

2023

SemiAnnual

Report

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

14

For

a

share

outstanding

throughout

each

period

6

Months

.

Ended

6/30/23

..

Year

..

..

Ended

.

12/31/22

12/31/21

12/31/20

12/31/19

12/31/18

NET

ASSET

VALUE

Beginning

of

period

$

24

.92‌

$

36

.18‌

$

37

.12‌

$

29

.25‌

$

23

.98‌

$

28

.20‌

Investment

activities

Net

investment

income

(1)(2)

0

.12‌

0

.29‌

0

.27‌

0

.24‌

0

.32‌

0

.34‌

Net

realized

and

unrealized

gain/loss

3

.00‌

(

9

.67‌

)

4

.17‌

8

.74‌

6

.30‌

(

2

.96‌

)

Total

from

investment

activities

3

.12‌

(

9

.38‌

)

4

.44‌

8

.98‌

6

.62‌

(

2

.62‌

)

Distributions

Net

investment

income

—‌

(

0

.33‌

)

(

0

.27‌

)

(

0

.24‌

)

(

0

.31‌

)

(

0

.31‌

)

Net

realized

gain

—‌

(

1

.55‌

)

(

5

.11‌

)

(

0

.87‌

)

(

1

.04‌

)

(

1

.29‌

)

Total

distributions

—‌

(

1

.88‌

)

(

5

.38‌

)

(

1

.11‌

)

(

1

.35‌

)

(

1

.60‌

)

NET

ASSET

VALUE

End

of

period

$

28

.04‌

$

24

.92‌

$

36

.18‌

$

37

.12‌

$

29

.25‌

$

23

.98‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Financial

Highlights

15

For

a

share

outstanding

throughout

each

period

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

6

Months

.

Ended

6/30/23

..

Year

..

..

Ended

.

12/31/22

12/31/21

12/31/20

12/31/19

12/31/18

Ratios/Supplemental

Data

Total

return

(2)(3)

12

.52‌

%

(

26

.00‌

)

%

12

.31‌

%

30

.82‌

%

27

.70‌

%

(

9

.66‌

)

%

Ratios

to

average

net

assets:

(2)

Gross

expenses

before

waivers/

payments

by

Price

Associates

0

.25‌

%

(4)

0

.26‌

%

0

.30‌

%

0

.35‌

%

0

.35‌

%

0

.35‌

%

Net

expenses

after

waivers/payments

by

Price

Associates

0

.25‌

%

(4)

0

.25‌

%

0

.30‌

%

0

.35‌

%

0

.35‌

%

0

.35‌

%

Net

investment

income

0

.92‌

%

(4)

1

.01‌

%

0

.66‌

%

0

.83‌

%

1

.13‌

%

1

.17‌

%

Portfolio

turnover

rate

4

.4‌

%

13

.7‌

%

36

.7‌

%

35

.9‌

%

17

.4‌

%

20

.9‌

%

Net

assets,

end

of

period

(in

thousands)

$892,358

$826,200

$1,281,380

$1,161,458

$938,905

$758,328

0‌

%

0‌

%

0‌

%

0‌

%

0‌

%

0‌

%

(1)

Per

share

amounts

calculated

using

average

shares

outstanding

method.

(2)

See

Note

7

for

details

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,

2023

(Unaudited)

16

Portfolio

of

Investments

‡

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

COMMON

STOCKS

99.4%

COMMUNICATION

SERVICES

4.1%

Diversified

Telecommunication

Services

0.5%

AST

SpaceMobile  (1)

13,000‌

61‌

Cogent

Communications

Holdings 

6,500‌

437‌

EchoStar,

Class

A  (1)

7,715‌

134‌

Frontier

Communications

Parent  (1)

26,353‌

491‌

GCI

Liberty,

Class

A,

EC  (1)(2)

21,362‌

—‌

Globalstar  (1)

138,400‌

149‌

IDT,

Class

B  (1)

8,242‌

213‌

Iridium

Communications 

18,318‌

1,138‌

Liberty

Global,

Class

A  (1)

24,334‌

410‌

Liberty

Global,

Class

C  (1)

42,928‌

763‌

Liberty

Latin

America,

Class

C  (1)

15,146‌

131‌

Lumen

Technologies  (3)

125,920‌

285‌

Radius

Global

Infrastructure,

Class

A  (1)

11,500‌

171‌

4,383‌

Entertainment

1.1%

AMC

Entertainment

Holdings,

Class

A  (1)(3)

73,374‌

323‌

Chicken

Soup

For

The

Soul

Entertainment  (1)(3)

18,800‌

22‌

Cinemark

Holdings  (1)

18,612‌

307‌

Endeavor

Group

Holdings,

Class

A  (1)

34,564‌

827‌

Kartoon

Studios  (1)(3)

31,610‌

60‌

Liberty

Media-Liberty

Formula

One,

Class

A  (1)

6,187‌

418‌

Liberty

Media-Liberty

Formula

One,

Class

C  (1)

30,788‌

2,318‌

Lions

Gate

Entertainment,

Class

B  (1)

17,763‌

148‌

Madison

Square

Garden

Entertainment  (1)

6,783‌

228‌

Madison

Square

Garden

Sports 

2,521‌

474‌

Playtika

Holding  (1)

20,600‌

239‌

ROBLOX,

Class

A  (1)

50,859‌

2,050‌

Roku  (1)

14,814‌

948‌

Skillz  (1)(3)

4,052‌

37‌

Sphere

Entertainment  (1)

6,783‌

186‌

Warner

Music

Group,

Class

A 

22,857‌

596‌

World

Wrestling

Entertainment,

Class

A 

6,000‌

651‌

9,832‌

Interactive

Media

&

Services

1.0%

Angi (1)(3)

34,000‌

112‌

Bumble,

Class

A  (1)

18,992‌

319‌

Cargurus  (1)

17,900‌

405‌

Cars.com  (1)

9,920‌

197‌

Eventbrite,

Class

A  (1)

17,300‌

165‌

IAC  (1)

12,730‌

800‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

17

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

MediaAlpha,

Class

A  (1)

10,100‌

104‌

Pinterest,

Class

A  (1)

89,962‌

2,460‌

Rumble  (1)(3)

9,900‌

88‌

Shutterstock 

2,800‌

136‌

Snap,

Class

A  (1)

136,402‌

1,615‌

TripAdvisor  (1)

12,900‌

213‌

TrueCar  (1)

55,425‌

125‌

Vimeo  (1)

22,296‌

92‌

Yelp  (1)

11,600‌

422‌

Ziff

Davis  (1)

7,000‌

490‌

ZoomInfo

Technologies  (1)

44,492‌

1,130‌

8,873‌

Media

1.4%

Altice

USA,

Class

A  (1)

30,500‌

92‌

Cable

One 

335‌

220‌

Cardlytics  (1)(3)

10,634‌

67‌

Clear

Channel

Outdoor

Holdings  (1)(3)

123,500‌

169‌

EW

Scripps,

Class

A  (1)

15,345‌

140‌

Gray

Television 

17,400‌

137‌

iHeartMedia,

Class

A  (1)

19,700‌

72‌

John

Wiley

&

Sons,

Class

A 

7,370‌

251‌

Liberty

Broadband,

Class

A  (1)

1,826‌

146‌

Liberty

Broadband,

Class

C  (1)

14,216‌

1,139‌

Liberty

Media-Liberty

SiriusXM,

Class

A  (1)

8,600‌

282‌

Liberty

Media-Liberty

SiriusXM,

Class

C  (1)

21,317‌

698‌

Magnite  (1)

17,700‌

242‌

New

York

Times,

Class

A 

20,800‌

819‌

Nexstar

Media

Group 

6,197‌

1,032‌

PubMatic,

Class

A  (1)

10,300‌

188‌

Scholastic 

8,858‌

345‌

Sinclair  (3)

11,410‌

158‌

Sirius

XM

Holdings  (3)

116,587‌

528‌

TechTarget  (1)

4,200‌

131‌

TEGNA 

33,210‌

539‌

Trade

Desk,

Class

A  (1)

66,100‌

5,104‌

12,499‌

Wireless

Telecommunication

Services

0.1%

Gogo (1)

13,463‌

229‌

Shenandoah

Telecommunications 

12,721‌

247‌

Telephone

&

Data

Systems 

14,262‌

118‌

594‌

Total

Communication

Services

36,181‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

18

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

CONSUMER

DISCRETIONARY

12.1%

Automobile

Components

1.0%

Adient (1)

14,100‌

540‌

Autoliv 

13,103‌

1,114‌

Dana 

21,572‌

367‌

Dorman

Products  (1)

4,800‌

378‌

Fox

Factory

Holding  (1)

7,000‌

760‌

Gentex 

25,720‌

753‌

Gentherm  (1)

6,000‌

339‌

Goodyear

Tire

&

Rubber  (1)

39,435‌

539‌

LCI

Industries 

3,900‌

493‌

Lear 

7,000‌

1,005‌

Luminar

Technologies  (1)(3)

29,600‌

204‌

Mobileye

Global,

Class

A  (1)

1,404‌

54‌

Modine

Manufacturing  (1)

6,100‌

201‌

Motorcar

Parts

of

America  (1)

14,500‌

112‌

Patrick

Industries 

4,000‌

320‌

QuantumScape  (1)(3)

35,862‌

287‌

Standard

Motor

Products 

5,388‌

202‌

Stoneridge  (1)

9,536‌

180‌

Superior

Industries

International  (1)

15,200‌

55‌

Visteon  (1)

4,300‌

617‌

XPEL  (1)

1,600‌

135‌

8,655‌

Automobiles

0.5%

Fisker (1)(3)

34,200‌

193‌

Harley-Davidson 

19,116‌

673‌

Lucid

Group  (1)(3)

125,639‌

866‌

Rivian

Automotive,

Class

A  (1)(3)

71,766‌

1,196‌

Thor

Industries  (3)

8,900‌

921‌

Winnebago

Industries 

3,781‌

252‌

4,101‌

Broadline

Retail

0.3%

Big

Lots  (3)

10,000‌

88‌

Dillard's,

Class

A  (3)

400‌

131‌

Kohl's 

22,042‌

508‌

Macy's 

39,300‌

631‌

Nordstrom 

13,832‌

283‌

Ollie's

Bargain

Outlet

Holdings  (1)

9,500‌

550‌

Qurate

Retail,

Series

A  (1)

80,200‌

79‌

2,270‌

Diversified

Consumer

Services

0.8%

2U (1)

19,800‌

80‌

ADT 

22,184‌

134‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

19

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Adtalem

Global

Education  (1)

6,300‌

216‌

Bright

Horizons

Family

Solutions  (1)

11,316‌

1,046‌

Carriage

Services 

6,600‌

214‌

Chegg  (1)

16,300‌

145‌

Clear

Secure,

Class

A  (3)

10,657‌

247‌

Coursera  (1)

17,600‌

229‌

Duolingo  (1)

4,541‌

649‌

Frontdoor  (1)

14,450‌

461‌

Graham

Holdings,

Class

B 

341‌

195‌

Grand

Canyon

Education  (1)

5,609‌

579‌

H&R

Block 

20,118‌

641‌

Laureate

Education 

23,200‌

281‌

Service

Corp

International 

22,831‌

1,475‌

Strategic

Education 

5,143‌

349‌

Stride  (1)

6,000‌

223‌

WW

International  (1)

12,700‌

85‌

7,249‌

Hotels,

Restaurants

&

Leisure

3.5%

Airbnb,

Class

A  (1)

58,369‌

7,480‌

Aramark 

32,900‌

1,416‌

Bally's  (1)

11,600‌

180‌

BJ's

Restaurants  (1)

4,933‌

157‌

Bloomin'

Brands 

11,900‌

320‌

Boyd

Gaming 

10,300‌

714‌

Brinker

International  (1)

8,279‌

303‌

Canterbury

Park

Holding 

6,213‌

145‌

Cheesecake

Factory 

5,840‌

202‌

Choice

Hotels

International  (3)

4,000‌

470‌

Churchill

Downs 

10,000‌

1,392‌

Chuy's

Holdings  (1)

6,906‌

282‌

Cracker

Barrel

Old

Country

Store  (3)

1,500‌

140‌

Dave

&

Buster's

Entertainment  (1)

6,800‌

303‌

Denny's  (1)

23,700‌

292‌

Dine

Brands

Global 

5,000‌

290‌

DoorDash,

Class

A  (1)

38,323‌

2,929‌

DraftKings,

Class

A  (1)

69,689‌

1,852‌

Dutch

Bros,

Class

A  (1)(3)

3,300‌

94‌

Everi

Holdings  (1)

20,600‌

298‌

Hilton

Grand

Vacations  (1)

12,610‌

573‌

Hyatt

Hotels,

Class

A 

6,300‌

722‌

Jack

in

the

Box 

4,600‌

449‌

Light

&

Wonder  (1)

10,530‌

724‌

Marriott

Vacations

Worldwide 

6,490‌

796‌

Papa

John's

International 

5,040‌

372‌

Penn

Entertainment  (1)

22,162‌

532‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

20

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Planet

Fitness,

Class

A  (1)

13,226‌

892‌

Red

Robin

Gourmet

Burgers  (1)

7,700‌

106‌

Red

Rock

Resorts,

Class

A  (3)

9,100‌

426‌

Rush

Street

Interactive  (1)

33,100‌

103‌

Sabre  (1)(3)

41,700‌

133‌

SeaWorld

Entertainment  (1)

4,767‌

267‌

Shake

Shack,

Class

A  (1)

4,200‌

326‌

Six

Flags

Entertainment  (1)

9,800‌

255‌

Sweetgreen,

Class

A  (1)

15,100‌

194‌

Texas

Roadhouse 

9,400‌

1,055‌

Travel

+

Leisure 

4,700‌

190‌

Vail

Resorts 

5,800‌

1,460‌

Wendy's 

33,140‌

721‌

Wingstop 

4,400‌

881‌

Wyndham

Hotels

&

Resorts 

11,840‌

812‌

31,248‌

Household

Durables

1.2%

Cavco

Industries  (1)

1,458‌

430‌

Cricut,

Class

A  (3)

8,000‌

98‌

Flexsteel

Industries 

5,600‌

110‌

GoPro,

Class

A  (1)

25,500‌

106‌

Helen

of

Troy  (1)(3)

3,300‌

356‌

Hovnanian

Enterprises,

Class

A  (1)

1,384‌

137‌

Installed

Building

Products 

4,100‌

575‌

iRobot  (1)

4,900‌

222‌

KB

Home 

11,900‌

615‌

La-Z-Boy 

9,950‌

285‌

Leggett

&

Platt 

11,147‌

330‌

LGI

Homes  (1)

3,937‌

531‌

Lovesac  (1)(3)

5,600‌

151‌

M/I

Homes  (1)

5,670‌

494‌

MDC

Holdings 

4,962‌

232‌

Meritage

Homes 

6,300‌

896‌

Skyline

Champion  (1)

8,000‌

524‌

Sonos  (1)

21,901‌

358‌

Taylor

Morrison

Home  (1)

17,000‌

829‌

Tempur

Sealy

International 

22,500‌

902‌

Toll

Brothers 

13,420‌

1,061‌

TopBuild  (1)

4,626‌

1,231‌

Tri

Pointe

Homes  (1)

18,572‌

610‌

Universal

Electronics  (1)

9,900‌

95‌

11,178‌

Leisure

Products

0.6%

Acushnet

Holdings 

5,075‌

278‌

Brunswick 

10,000‌

867‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

21

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Funko,

Class

A  (1)(3)

10,100‌

109‌

Malibu

Boats,

Class

A  (1)

4,300‌

252‌

Marine

Products 

8,600‌

145‌

Mattel  (1)

62,139‌

1,214‌

Peloton

Interactive,

Class

A  (1)

49,457‌

380‌

Polaris 

8,440‌

1,021‌

Topgolf

Callaway

Brands  (1)

17,500‌

347‌

YETI

Holdings  (1)

13,500‌

524‌

5,137‌

Specialty

Retail

2.6%

1-800-Flowers.com,

Class

A  (1)

13,368‌

104‌

Aaron's 

14,168‌

200‌

Abercrombie

&

Fitch,

Class

A  (1)

10,100‌

381‌

Academy

Sports

&

Outdoors 

8,600‌

465‌

American

Eagle

Outfitters 

16,580‌

196‌

Asbury

Automotive

Group  (1)

2,129‌

512‌

AutoNation  (1)

3,204‌

527‌

Boot

Barn

Holdings  (1)

5,300‌

449‌

Burlington

Stores  (1)

10,902‌

1,716‌

Caleres 

6,430‌

154‌

CarParts.com  (1)

32,800‌

139‌

Carvana  (1)

15,182‌

394‌

Chewy,

Class

A  (1)

8,841‌

349‌

Dick's

Sporting

Goods 

8,100‌

1,071‌

Five

Below  (1)

8,524‌

1,675‌

Floor

&

Decor

Holdings,

Class

A  (1)

17,944‌

1,865‌

Foot

Locker  (3)

12,803‌

347‌

Franchise

Group 

5,600‌

160‌

GameStop,

Class

A  (1)

35,204‌

854‌

Gap 

31,100‌

278‌

Genesco  (1)

5,100‌

128‌

Group

1

Automotive 

2,109‌

544‌

Guess? 

8,920‌

174‌

Hibbett 

3,800‌

138‌

Leslie's  (1)(3)

24,100‌

226‌

Lithia

Motors 

3,600‌

1,095‌

Monro 

7,100‌

288‌

Murphy

USA 

3,600‌

1,120‌

National

Vision

Holdings  (1)

9,922‌

241‌

ODP  (1)

7,757‌

363‌

Overstock.com  (1)

8,200‌

267‌

Penske

Automotive

Group 

2,708‌

451‌

Petco

Health

&

Wellness  (1)(3)

22,800‌

203‌

PetMed

Express  (3)

7,600‌

105‌

RealReal  (1)(3)

51,100‌

113‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

22

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Revolve

Group  (1)(3)

8,700‌

143‌

RH  (1)(3)

2,600‌

857‌

Sally

Beauty

Holdings  (1)

12,000‌

148‌

Signet

Jewelers 

7,600‌

496‌

Sleep

Number  (1)

5,500‌

150‌

Sonic

Automotive,

Class

A 

5,003‌

239‌

Stitch

Fix,

Class

A  (1)

25,500‌

98‌

Upbound

Group 

7,450‌

232‌

Urban

Outfitters  (1)

2,700‌

89‌

Valvoline 

21,717‌

815‌

Victoria's

Secret  (1)

13,200‌

230‌

Vroom  (1)

45,600‌

66‌

Warby

Parker,

Class

A  (1)

19,956‌

233‌

Wayfair,

Class

A  (1)

11,200‌

728‌

Williams-Sonoma  (3)

9,567‌

1,197‌

23,013‌

Textiles,

Apparel

&

Luxury

Goods

1.6%

Capri

Holdings  (1)

12,995‌

466‌

Carter's 

5,900‌

428‌

Columbia

Sportswear 

3,462‌

267‌

Crocs  (1)

8,200‌

922‌

Deckers

Outdoor  (1)

3,658‌

1,930‌

Figs,

Class

A  (1)

19,600‌

162‌

G-III

Apparel

Group  (1)

9,000‌

173‌

Hanesbrands  (3)

42,099‌

191‌

Kontoor

Brands 

8,300‌

349‌

Lululemon

Athletica  (1)

16,335‌

6,183‌

Movado

Group 

6,705‌

180‌

Oxford

Industries 

2,200‌

217‌

PVH 

5,705‌

485‌

Skechers

USA,

Class

A  (1)

21,900‌

1,153‌

Steven

Madden 

12,050‌

394‌

Superior

Group 

23,500‌

220‌

Under

Armour,

Class

A  (1)

18,600‌

134‌

Under

Armour,

Class

C  (1)

20,100‌

135‌

Vera

Bradley  (1)

24,500‌

157‌

Wolverine

World

Wide 

9,300‌

137‌

14,283‌

Total

Consumer

Discretionary

107,134‌

CONSUMER

STAPLES

2.8%

Beverages

0.2%

Boston

Beer,

Class

A  (1)

1,500‌

463‌

Celsius

Holdings  (1)

5,600‌

835‌

Coca-Cola

Consolidated 

900‌

572‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

23

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

National

Beverage  (1)

3,696‌

179‌

Willamette

Valley

Vineyards  (1)

10,850‌

63‌

2,112‌

Consumer

Staples

Distribution

&

Retail

0.9%

Albertsons,

Class

A 

15,685‌

342‌

Andersons 

8,400‌

388‌

BJ's

Wholesale

Club

Holdings  (1)

22,513‌

1,419‌

Casey's

General

Stores 

5,289‌

1,290‌

Chefs'

Warehouse  (1)

6,300‌

225‌

Grocery

Outlet

Holding  (1)

9,632‌

295‌

Ingles

Markets,

Class

A 

3,500‌

289‌

Performance

Food

Group  (1)

18,468‌

1,112‌

PriceSmart 

3,450‌

255‌

SpartanNash 

8,826‌

199‌

Sprouts

Farmers

Market  (1)(3)

17,200‌

632‌

U.S.

Foods

Holding  (1)

29,909‌

1,316‌

United

Natural

Foods  (1)

9,300‌

182‌

7,944‌

Food

Products

1.0%

B&G

Foods 

11,600‌

161‌

Beyond

Meat  (1)(3)

11,300‌

147‌

Calavo

Growers 

7,863‌

228‌

Cal-Maine

Foods 

3,864‌

174‌

Darling

Ingredients  (1)

26,700‌

1,703‌

Flowers

Foods 

33,083‌

823‌

Fresh

Del

Monte

Produce 

8,200‌

211‌

Freshpet  (1)

6,770‌

446‌

Hain

Celestial

Group  (1)

11,000‌

138‌

Hostess

Brands  (1)

19,008‌

481‌

Ingredion 

8,500‌

901‌

J

&

J

Snack

Foods 

1,549‌

245‌

John

B.

Sanfilippo

&

Son 

2,942‌

345‌

Lancaster

Colony 

2,200‌

442‌

Post

Holdings  (1)

7,985‌

692‌

Seaboard 

80‌

285‌

Simply

Good

Foods  (1)

14,840‌

543‌

TreeHouse

Foods  (1)

5,543‌

279‌

Utz

Brands  (3)

8,200‌

134‌

Vital

Farms  (1)

17,500‌

210‌

8,588‌

Household

Products

0.2%

Central

Garden

&

Pet,

Class

A  (1)

7,900‌

288‌

Energizer

Holdings 

9,250‌

310‌

Spectrum

Brands

Holdings 

6,211‌

485‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

24

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

WD-40  (3)

2,500‌

472‌

1,555‌

Personal

Care

Products

0.4%

Beauty

Health  (1)(3)

13,138‌

110‌

BellRing

Brands  (1)

17,446‌

639‌

Coty,

Class

A  (1)

40,849‌

502‌

Edgewell

Personal

Care 

8,050‌

333‌

elf

Beauty  (1)

9,099‌

1,039‌

Herbalife  (1)

15,900‌

210‌

Inter

Parfums 

3,500‌

473‌

Lifevantage 

25,900‌

113‌

Medifast 

1,446‌

133‌

Nu

Skin

Enterprises,

Class

A 

7,016‌

233‌

USANA

Health

Sciences  (1)

2,100‌

132‌

3,917‌

Tobacco

0.1%

22nd

Century

Group  (1)

95,900‌

37‌

Universal 

3,808‌

190‌

Vector

Group 

22,482‌

288‌

515‌

Total

Consumer

Staples

24,631‌

ENERGY

4.3%

Energy

Equipment

&

Services

1.1%

Archrock 

38,867‌

398‌

Cactus,

Class

A 

11,000‌

466‌

ChampionX 

27,700‌

860‌

DMC

Global  (1)

10,100‌

179‌

Forum

Energy

Technologies  (1)

7,800‌

200‌

Helmerich

&

Payne 

17,500‌

620‌

Liberty

Energy,

Class

A 

27,467‌

367‌

Mammoth

Energy

Services  (1)

18,000‌

87‌

Nabors

Industries  (1)

1,900‌

177‌

Newpark

Resources  (1)

57,576‌

301‌

Noble  (1)

13,920‌

575‌

NOV 

49,575‌

795‌

Oceaneering

International  (1)

15,825‌

296‌

Patterson-UTI

Energy 

34,626‌

415‌

Solaris

Oilfield

Infrastructure,

Class

A 

31,556‌

263‌

TechnipFMC  (1)

63,381‌

1,053‌

TETRA

Technologies  (1)

41,541‌

140‌

Tidewater  (1)

9,766‌

542‌

Transocean  (1)(3)

105,600‌

740‌

Valaris  (1)

7,900‌

497‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

25

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Weatherford

International  (1)

9,900‌

658‌

9,629‌

Oil,

Gas

&

Consumable

Fuels

3.2%

Adams

Resources

&

Energy 

4,341‌

153‌

Antero

Midstream 

52,300‌

607‌

Antero

Resources  (1)

40,961‌

943‌

Arch

Resources 

2,200‌

248‌

California

Resources 

11,200‌

507‌

Callon

Petroleum  (1)

7,253‌

254‌

Centrus

Energy,

Class

A  (1)

2,500‌

81‌

Cheniere

Energy 

34,441‌

5,247‌

Chesapeake

Energy 

16,404‌

1,373‌

Chord

Energy 

6,275‌

965‌

Civitas

Resources 

7,863‌

545‌

CNX

Resources  (1)

25,800‌

457‌

Comstock

Resources  (3)

14,200‌

165‌

CONSOL

Energy 

4,700‌

319‌

Crescent

Energy,

Class

A 

11,120‌

116‌

CVR

Energy 

8,300‌

249‌

Delek

U.S.

Holdings 

12,107‌

290‌

Denbury  (1)

7,000‌

604‌

Dorian

LPG 

7,169‌

184‌

DT

Midstream 

11,600‌

575‌

Equitrans

Midstream 

61,023‌

583‌

Green

Plains  (1)

8,700‌

281‌

HF

Sinclair 

17,741‌

791‌

International

Seaways 

6,800‌

260‌

Kosmos

Energy  (1)

82,000‌

491‌

Magnolia

Oil

&

Gas,

Class

A 

30,071‌

629‌

Matador

Resources 

11,476‌

600‌

Murphy

Oil 

23,918‌

916‌

New

Fortress

Energy 

7,200‌

193‌

Northern

Oil

&

Gas  (3)

9,610‌

330‌

Ovintiv 

35,960‌

1,369‌

PBF

Energy,

Class

A 

15,403‌

631‌

PDC

Energy 

16,036‌

1,141‌

Peabody

Energy 

17,000‌

368‌

Permian

Resources 

36,400‌

399‌

Range

Resources 

36,100‌

1,061‌

REX

American

Resources  (1)

6,150‌

214‌

Ring

Energy  (1)

38,900‌

67‌

SandRidge

Energy 

10,585‌

161‌

Sitio

Royalties,

Class

A 

8,100‌

213‌

SM

Energy 

20,300‌

642‌

Southwestern

Energy  (1)

159,100‌

956‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

26

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Talos

Energy  (1)

12,000‌

166‌

Tellurian  (1)(3)

70,700‌

100‌

Texas

Pacific

Land 

900‌

1,185‌

Uranium

Energy  (1)(3)

59,300‌

202‌

Vitesse

Energy 

4,583‌

103‌

World

Kinect 

15,300‌

316‌

28,250‌

Total

Energy

37,879‌

FINANCIALS

15.6%

Banks

4.6%

1st

Source 

2,261‌

95‌

Ameris

Bancorp 

10,100‌

346‌

Arrow

Financial 

13,468‌

271‌

Associated

Banc-Corp 

28,827‌

468‌

Atlantic

Union

Bankshares 

14,747‌

383‌

Axos

Financial  (1)

8,400‌

331‌

Banc

of

California 

13,700‌

159‌

BancFirst 

2,817‌

259‌

Bancorp  (1)

12,300‌

402‌

Bank

of

Hawaii  (3)

5,166‌

213‌

Bank

OZK 

19,000‌

763‌

BankUnited 

16,018‌

345‌

Banner 

3,571‌

156‌

Berkshire

Hills

Bancorp 

10,741‌

223‌

BOK

Financial 

4,060‌

328‌

Brookline

Bancorp 

22,331‌

195‌

Cadence

Bank 

31,375‌

616‌

Capitol

Federal

Financial 

20,644‌

127‌

Cathay

General

Bancorp 

7,294‌

235‌

City

Holding 

2,357‌

212‌

Columbia

Banking

System 

29,099‌

590‌

Commerce

Bancshares 

16,204‌

789‌

Community

Bank

System 

9,628‌

451‌

ConnectOne

Bancorp 

11,183‌

186‌

Cullen/Frost

Bankers 

8,450‌

909‌

CVB

Financial 

26,706‌

355‌

Dime

Community

Bancshares 

7,700‌

136‌

East

West

Bancorp 

21,000‌

1,109‌

Eastern

Bankshares 

29,000‌

356‌

First

Bancorp

North

Carolina 

8,913‌

265‌

First

BanCorp

Puerto

Rico 

37,849‌

462‌

First

Busey 

11,729‌

236‌

First

Citizens

BancShares,

Class

A 

1,744‌

2,238‌

First

Commonwealth

Financial 

17,900‌

226‌

First

Community

Bankshares 

13,925‌

414‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

27

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

First

Financial 

5,968‌

194‌

First

Financial

Bancorp 

13,000‌

266‌

First

Financial

Bankshares 

23,176‌

660‌

First

Hawaiian 

14,900‌

268‌

First

Horizon 

73,206‌

825‌

First

Interstate

BancSystem,

Class

A 

12,942‌

309‌

First

Merchants 

11,013‌

311‌

First

United 

7,811‌

111‌

Flushing

Financial 

19,125‌

235‌

FNB 

30,756‌

352‌

Fulton

Financial 

8,302‌

99‌

German

American

Bancorp 

7,533‌

205‌

Glacier

Bancorp 

15,512‌

483‌

Hancock

Whitney 

12,400‌

476‌

Hilltop

Holdings 

6,936‌

218‌

Home

BancShares 

28,776‌

656‌

HomeStreet 

8,965‌

53‌

Hope

Bancorp 

25,700‌

216‌

Independent

Bank 

6,690‌

298‌

Independent

Bank

Group 

3,600‌

124‌

International

Bancshares 

8,002‌

354‌

Kearny

Financial 

29,937‌

211‌

Live

Oak

Bancshares 

6,400‌

168‌

Macatawa

Bank 

29,488‌

274‌

MVB

Financial 

12,300‌

259‌

National

Bank

Holdings,

Class

A 

9,000‌

261‌

NBT

Bancorp 

5,611‌

179‌

New

York

Community

Bancorp 

82,633‌

929‌

Nicolet

Bankshares 

3,400‌

231‌

Northrim

BanCorp 

3,809‌

150‌

Northwest

Bancshares 

24,083‌

255‌

OceanFirst

Financial 

16,200‌

253‌

OFG

Bancorp 

12,892‌

336‌

Old

National

Bancorp 

29,748‌

415‌

Pacific

Premier

Bancorp 

15,900‌

329‌

PacWest

Bancorp 

9,812‌

80‌

Park

National 

2,440‌

250‌

Peapack-Gladstone

Financial 

6,557‌

178‌

Peoples

Bancorp 

9,913‌

263‌

Pinnacle

Financial

Partners 

12,449‌

705‌

Popular 

13,647‌

826‌

Preferred

Bank 

3,072‌

169‌

Prosperity

Bancshares 

12,760‌

721‌

Provident

Bancorp 

17,600‌

146‌

Provident

Financial

Services 

16,823‌

275‌

Renasant 

10,652‌

278‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

28

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

S&T

Bancorp 

9,220‌

251‌

Sandy

Spring

Bancorp 

11,930‌

271‌

Seacoast

Banking 

11,639‌

257‌

ServisFirst

Bancshares  (3)

8,300‌

340‌

Simmons

First

National,

Class

A 

17,010‌

293‌

Southside

Bancshares 

8,690‌

227‌

SouthState 

12,516‌

824‌

Stock

Yards

Bancorp 

7,181‌

326‌

Synovus

Financial 

23,084‌

698‌

Texas

Capital

Bancshares  (1)

9,000‌

463‌

Tompkins

Financial 

3,423‌

191‌

Towne

Bank 

15,200‌

353‌

TriCo

Bancshares 

7,900‌

262‌

TrustCo

Bank 

7,232‌

207‌

Trustmark 

13,000‌

275‌

UMB

Financial 

7,312‌

445‌

United

Bankshares 

22,100‌

656‌

United

Community

Banks 

16,196‌

405‌

Univest

Financial 

12,300‌

222‌

Valley

National

Bancorp 

45,300‌

351‌

Veritex

Holdings 

9,000‌

161‌

Washington

Federal 

5,368‌

142‌

Washington

Trust

Bancorp 

5,200‌

139‌

Webster

Financial 

27,938‌

1,055‌

WesBanco 

14,042‌

360‌

West

BanCorp 

17,300‌

318‌

Westamerica

BanCorp 

5,346‌

205‌

Western

Alliance

Bancorp 

18,019‌

657‌

Western

New

England

Bancorp 

27,519‌

161‌

Wintrust

Financial 

5,400‌

392‌

WSFS

Financial 

8,550‌

322‌

40,932‌

Capital

Markets

4.0%

Affiliated

Managers

Group 

5,300‌

794‌

Ares

Management,

Class

A 

24,390‌

2,350‌

Artisan

Partners

Asset

Management,

Class

A 

9,800‌

385‌

BGC

Partners,

Class

A 

49,400‌

219‌

Blackstone 

99,426‌

9,244‌

Blue

Owl

Capital 

58,152‌

677‌

Carlyle

Group 

30,314‌

969‌

Cohen

&

Steers 

3,200‌

186‌

Coinbase

Global,

Class

A  (1)

20,051‌

1,435‌

Donnelley

Financial

Solutions  (1)

5,875‌

268‌

Evercore,

Class

A 

5,400‌

667‌

Federated

Hermes 

14,500‌

520‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

29

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Focus

Financial

Partners,

Class

A  (1)

6,800‌

357‌

Hamilton

Lane,

Class

A 

5,200‌

416‌

Houlihan

Lokey 

7,715‌

758‌

Interactive

Brokers

Group,

Class

A 

12,200‌

1,013‌

Janus

Henderson

Group 

20,323‌

554‌

Jefferies

Financial

Group 

27,047‌

897‌

KKR 

78,492‌

4,396‌

Lazard,

Class

A 

20,500‌

656‌

LPL

Financial

Holdings 

11,901‌

2,588‌

Moelis,

Class

A  (3)

3,067‌

139‌

Morningstar 

3,300‌

647‌

Open

Lending,

Class

A  (1)

37,046‌

389‌

Piper

Sandler 

2,550‌

330‌

PJT

Partners,

Class

A 

4,800‌

334‌

Robinhood

Markets,

Class

A  (1)

72,354‌

722‌

SEI

Investments 

13,256‌

790‌

StepStone

Group,

Class

A 

10,977‌

272‌

Stifel

Financial 

15,229‌

909‌

StoneX

Group  (1)

4,481‌

372‌

Tradeweb

Markets,

Class

A 

17,148‌

1,174‌

U.S.

Global

Investors,

Class

A 

26,700‌

82‌

Virtu

Financial,

Class

A 

14,596‌

249‌

Virtus

Investment

Partners 

1,832‌

362‌

36,120‌

Consumer

Finance

0.8%

Ally

Financial 

35,725‌

965‌

Bread

Financial

Holdings 

6,900‌

216‌

Credit

Acceptance  (1)(3)

1,000‌

508‌

Encore

Capital

Group  (1)

5,000‌

243‌

Enova

International  (1)

3,339‌

177‌

EZCORP,

Class

A  (1)

24,495‌

205‌

FirstCash

Holdings 

4,138‌

386‌

Green

Dot,

Class

A  (1)

9,800‌

184‌

LendingClub  (1)

26,638‌

260‌

LendingTree  (1)

5,225‌

115‌

Navient 

20,000‌

372‌

OneMain

Holdings 

19,800‌

865‌

PRA

Group  (1)

6,206‌

142‌

PROG

Holdings  (1)

9,735‌

313‌

SLM 

40,500‌

661‌

SoFi

Technologies  (1)

114,528‌

955‌

Upstart

Holdings  (1)(3)

10,800‌

387‌

6,954‌

Financial

Services

2.6%

Affirm

Holdings  (1)

29,702‌

455‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

30

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Apollo

Global

Management 

65,200‌

5,008‌

AvidXchange

Holdings  (1)

17,800‌

185‌

Block,

Class

A  (1)

72,557‌

4,830‌

Cannae

Holdings  (1)

9,900‌

200‌

Corebridge

Financial 

17,001‌

300‌

Equitable

Holdings 

56,626‌

1,538‌

Essent

Group 

8,874‌

415‌

Euronet

Worldwide  (1)

6,189‌

726‌

EVERTEC 

12,500‌

460‌

Federal

Agricultural

Mortgage,

Class

C 

2,028‌

292‌

Flywire  (1)

8,929‌

277‌

Jackson

Financial,

Class

A 

12,682‌

388‌

Marqeta,

Class

A  (1)

69,400‌

338‌

MGIC

Investment 

44,400‌

701‌

Mr

Cooper

Group  (1)

8,885‌

450‌

NMI

Holdings,

Class

A  (1)

16,800‌

434‌

Ocwen

Financial  (1)

4,762‌

143‌

Payoneer

Global  (1)

60,600‌

292‌

PennyMac

Financial

Services 

5,265‌

370‌

Radian

Group 

15,658‌

396‌

Remitly

Global  (1)

14,660‌

276‌

Rocket,

Class

A  (1)

15,600‌

140‌

Shift4

Payments,

Class

A  (1)(3)

7,800‌

530‌

Toast,

Class

A  (1)(3)

42,493‌

959‌

UWM

Holdings  (3)

36,700‌

206‌

Voya

Financial 

16,575‌

1,189‌

Walker

&

Dunlop 

5,000‌

395‌

Western

Union 

36,513‌

428‌

WEX  (1)

5,889‌

1,072‌

23,393‌

Insurance

2.8%

Ambac

Financial

Group  (1)

14,700‌

209‌

American

Equity

Investment

Life

Holding 

11,000‌

573‌

American

Financial

Group 

8,910‌

1,058‌

Argo

Group

International

Holdings 

7,622‌

226‌

Assured

Guaranty 

10,800‌

603‌

Axis

Capital

Holdings 

15,073‌

811‌

Brighthouse

Financial  (1)

9,300‌

440‌

BRP

Group,

Class

A  (1)

12,000‌

297‌

CNA

Financial 

7,288‌

281‌

CNO

Financial

Group 

18,700‌

443‌

eHealth  (1)

9,700‌

78‌

Enstar

Group  (1)

2,500‌

611‌

Erie

Indemnity,

Class

A 

3,407‌

716‌

Fidelity

National

Financial 

37,731‌

1,358‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

31

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

First

American

Financial 

14,430‌

823‌

Genworth

Financial,

Class

A  (1)

88,600‌

443‌

Hanover

Insurance

Group 

5,676‌

642‌

Hippo

Holdings  (1)

6,300‌

104‌

Horace

Mann

Educators 

7,210‌

214‌

James

River

Group

Holdings 

7,500‌

137‌

Kemper 

13,390‌

646‌

Kinsale

Capital

Group 

2,252‌

843‌

Lemonade  (1)(3)

11,800‌

199‌

Markel

Group  (1)

1,979‌

2,737‌

MBIA  (1)

13,200‌

114‌

Mercury

General 

5,600‌

170‌

National

Western

Life

Group,

Class

A 

608‌

253‌

Old

Republic

International 

31,793‌

800‌

Oscar

Health,

Class

A  (1)

19,300‌

156‌

Palomar

Holdings  (1)

6,096‌

354‌

Primerica 

6,113‌

1,209‌

ProAssurance 

13,640‌

206‌

Reinsurance

Group

of

America 

9,720‌

1,348‌

RenaissanceRe

Holdings 

7,400‌

1,380‌

RLI 

3,768‌

514‌

Root,

Class

A  (1)

12,305‌

110‌

Ryan

Specialty

Group

Holdings  (1)

8,292‌

372‌

Safety

Insurance

Group 

3,086‌

221‌

Selective

Insurance

Group 

8,670‌

832‌

Stewart

Information

Services 

4,480‌

184‌

United

Fire

Group 

7,638‌

173‌

Unum

Group 

23,800‌

1,135‌

White

Mountains

Insurance

Group 

411‌

571‌

24,594‌

Mortgage

Real

Estate

Investment

Trusts

0.8%

ACRES

Commercial

Realty,

REIT  (1)(3)

16,332‌

144‌

AGNC

Investment,

REIT  (3)

58,193‌

590‌

Annaly

Capital

Management,

REIT 

68,230‌

1,365‌

Apollo

Commercial

Real

Estate

Finance,

REIT 

5,900‌

67‌

Arbor

Realty

Trust,

REIT 

7,100‌

105‌

Ares

Commercial

Real

Estate,

REIT  (3)

23,100‌

235‌

Arlington

Asset

Investment,

Class

A,

REIT  (1)

32,800‌

152‌

ARMOUR

Residential

REIT,

REIT  (3)

20,500‌

109‌

Blackstone

Mortgage

Trust,

Class

A,

REIT  (3)

13,509‌

281‌

BrightSpire

Capital,

REIT  (3)

31,500‌

212‌

Cherry

Hill

Mortgage

Investment,

REIT  (3)

19,062‌

92‌

Chimera

Investment,

REIT  (3)

36,100‌

208‌

Claros

Mortgage

Trust  (3)

22,453‌

255‌

Hannon

Armstrong

Sustainable

Infrastructure

Capital,

REIT  (3)

16,476‌

412‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

32

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Invesco

Mortgage

Capital,

REIT  (3)

9,260‌

106‌

Ladder

Capital,

REIT 

27,500‌

298‌

MFA

Financial,

REIT 

28,122‌

316‌

PennyMac

Mortgage

Investment

Trust,

REIT 

21,600‌

291‌

Ready

Capital,

REIT  (3)

13,636‌

154‌

Redwood

Trust,

REIT 

33,367‌

213‌

Rithm

Capital,

REIT 

38,250‌

358‌

Starwood

Property

Trust,

REIT  (3)

43,800‌

850‌

TPG

RE

Finance

Trust,

REIT 

26,100‌

193‌

Two

Harbors

Investment,

REIT 

13,200‌

183‌

7,189‌

Total

Financials

139,182‌

HEALTH

CARE

12.9%

Biotechnology

5.8%

4D

Molecular

Therapeutics  (1)

5,689‌

103‌

89bio  (1)

8,700‌

165‌

Aadi

Bioscience  (1)

6,779‌

46‌

ACADIA

Pharmaceuticals  (1)

28,300‌

678‌

Adamas

Pharmaceuticals,

CVR  (1)(2)

26,000‌

4‌

Adamas

Pharmaceuticals,

CVR  (1)(2)

26,000‌

—‌

Adaptimmune

Therapeutics,

ADR  (1)

73,922‌

68‌

Agenus  (1)

68,600‌

110‌

Agios

Pharmaceuticals  (1)

11,100‌

314‌

Akero

Therapeutics  (1)

6,787‌

317‌

Aldeyra

Therapeutics  (1)

7,591‌

64‌

Alector  (1)

13,300‌

80‌

Alkermes  (1)

24,959‌

781‌

Allakos  (1)

19,459‌

85‌

Alnylam

Pharmaceuticals  (1)

17,900‌

3,400‌

Amicus

Therapeutics  (1)

41,500‌

521‌

Anavex

Life

Sciences  (1)(3)

13,100‌

107‌

Annovis

Bio  (1)(3)

4,800‌

69‌

Apellis

Pharmaceuticals  (1)

16,336‌

1,488‌

Arcellx  (1)

4,100‌

130‌

Arcturus

Therapeutics

Holdings  (1)

4,800‌

138‌

Arcus

Biosciences  (1)

9,900‌

201‌

Ardelyx  (1)

29,400‌

100‌

Arrowhead

Pharmaceuticals  (1)

16,000‌

571‌

Atara

Biotherapeutics  (1)

34,100‌

55‌

Avid

Bioservices  (1)

12,400‌

173‌

Avidity

Biosciences  (1)

10,100‌

112‌

Beam

Therapeutics  (1)(3)

9,900‌

316‌

BioCryst

Pharmaceuticals  (1)(3)

25,775‌

181‌

Biohaven  (1)

9,664‌

231‌

BioMarin

Pharmaceutical  (1)

26,090‌

2,261‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

33

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Biomea

Fusion  (1)

3,100‌

68‌

Blueprint

Medicines  (1)

10,500‌

664‌

Bridgebio

Pharma  (1)(3)

19,005‌

327‌

C4

Therapeutics  (1)

12,400‌

34‌

Cabaletta

Bio  (1)

7,400‌

96‌

CareDx  (1)(3)

9,600‌

82‌

Catalyst

Pharmaceuticals  (1)

8,700‌

117‌

Celldex

Therapeutics  (1)

7,300‌

248‌

CEL-SCI  (1)(3)

26,800‌

65‌

Cerevel

Therapeutics

Holdings  (1)(3)

11,300‌

359‌

Chinook

Therapeutics  (1)

4,200‌

161‌

Cogent

Biosciences  (1)

11,400‌

135‌

CRISPR

Therapeutics  (1)(3)

10,118‌

568‌

Cullinan

Oncology  (1)

8,900‌

96‌

Curis  (1)

73,500‌

61‌

Cytokinetics  (1)(3)

15,296‌

499‌

Denali

Therapeutics  (1)

15,000‌

443‌

Dynavax

Technologies  (1)

17,700‌

229‌

Editas

Medicine  (1)

8,900‌

73‌

Emergent

BioSolutions  (1)

7,800‌

57‌

Enanta

Pharmaceuticals  (1)

4,500‌

96‌

EQRx  (1)

36,600‌

68‌

Exact

Sciences  (1)

25,381‌

2,383‌

Exelixis  (1)

50,990‌

974‌

Fate

Therapeutics  (1)

12,200‌

58‌

FibroGen  (1)

11,700‌

32‌

G1

Therapeutics  (1)

17,755‌

44‌

Generation

Bio  (1)

20,600‌

113‌

Geron  (1)

59,300‌

190‌

Gritstone

bio  (1)

26,900‌

52‌

Halozyme

Therapeutics  (1)

20,700‌

747‌

Horizon

Therapeutics  (1)

32,200‌

3,312‌

Ideaya

Biosciences  (1)

7,500‌

176‌

IGM

Biosciences  (1)(3)

9,200‌

85‌

ImmunoGen  (1)

35,400‌

668‌

Immunovant  (1)

8,600‌

163‌

Inhibrx  (1)(3)

5,000‌

130‌

Insmed  (1)

25,421‌

536‌

Intellia

Therapeutics  (1)

12,800‌

522‌

Intercept

Pharmaceuticals  (1)(3)

8,631‌

95‌

Ionis

Pharmaceuticals  (1)

26,485‌

1,087‌

Iovance

Biotherapeutics  (1)

26,288‌

185‌

Ironwood

Pharmaceuticals  (1)

17,120‌

182‌

IVERIC

bio  (1)

17,400‌

685‌

KalVista

Pharmaceuticals  (1)

16,300‌

147‌

Karuna

Therapeutics  (1)

5,019‌

1,088‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

34

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Karyopharm

Therapeutics  (1)

26,700‌

48‌

Keros

Therapeutics  (1)

5,000‌

201‌

Krystal

Biotech  (1)

3,000‌

352‌

Kymera

Therapeutics  (1)

10,400‌

239‌

Lexicon

Pharmaceuticals  (1)(3)

40,600‌

93‌

Ligand

Pharmaceuticals  (1)

2,286‌

165‌

Lineage

Cell

Therapeutics  (1)

59,100‌

83‌

Madrigal

Pharmaceuticals  (1)

1,689‌

390‌

MannKind  (1)

46,400‌

189‌

Mersana

Therapeutics  (1)

18,800‌

62‌

Mirati

Therapeutics  (1)

7,053‌

255‌

Morphic

Holding  (1)

6,500‌

373‌

Myriad

Genetics  (1)

14,280‌

331‌

Natera  (1)

15,400‌

749‌

Neurocrine

Biosciences  (1)

15,102‌

1,424‌

Novavax  (1)(3)

11,450‌

85‌

Nurix

Therapeutics  (1)

11,800‌

118‌

Nuvalent,

Class

A  (1)

4,800‌

202‌

Olema

Pharmaceuticals  (1)

15,400‌

139‌

PMV

Pharmaceuticals  (1)

16,500‌

103‌

Point

Biopharma

Global  (1)

8,500‌

77‌

Precigen  (1)(3)

87,300‌

100‌

Protagonist

Therapeutics  (1)

5,600‌

155‌

Prothena  (1)

9,118‌

623‌

PTC

Therapeutics  (1)

11,800‌

480‌

RAPT

Therapeutics  (1)

7,200‌

135‌

Recursion

Pharmaceuticals,

Class

A  (1)

22,400‌

167‌

REGENXBIO  (1)

6,421‌

128‌

Relay

Therapeutics  (1)

12,800‌

161‌

Replimune

Group  (1)

13,700‌

318‌

REVOLUTION

Medicines  (1)

18,418‌

493‌

Rhythm

Pharmaceuticals  (1)

7,300‌

120‌

Rigel

Pharmaceuticals  (1)

63,500‌

82‌

Rocket

Pharmaceuticals  (1)

11,599‌

230‌

Roivant

Sciences  (1)

12,800‌

129‌

Sage

Therapeutics  (1)

8,700‌

409‌

Sana

Biotechnology  (1)(3)

22,300‌

133‌

Sangamo

Therapeutics  (1)

73,100‌

95‌

Sarepta

Therapeutics  (1)

12,416‌

1,422‌

Scholar

Rock

Holding  (1)

14,814‌

112‌

Seagen  (1)

19,930‌

3,836‌

Shattuck

Labs  (1)

19,300‌

60‌

SpringWorks

Therapeutics  (1)

7,700‌

202‌

Syndax

Pharmaceuticals  (1)

9,600‌

201‌

Syros

Pharmaceuticals  (1)(3)

22,550‌

71‌

TG

Therapeutics  (1)

20,100‌

499‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

35

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Travere

Therapeutics  (1)(3)

10,200‌

157‌

Twist

Bioscience  (1)(3)

8,600‌

176‌

Ultragenyx

Pharmaceutical  (1)

13,100‌

604‌

United

Therapeutics  (1)

6,500‌

1,435‌

Vaxcyte  (1)

12,241‌

611‌

Veracyte  (1)

8,500‌

217‌

Vericel  (1)

5,805‌

218‌

Verve

Therapeutics  (1)

6,600‌

124‌

Viking

Therapeutics  (1)

9,500‌

154‌

Vir

Biotechnology  (1)

12,400‌

304‌

Viridian

Therapeutics  (1)

7,900‌

188‌

Voyager

Therapeutics  (1)

8,900‌

102‌

Xencor  (1)

11,538‌

288‌

XOMA  (1)

6,534‌

123‌

Zentalis

Pharmaceuticals  (1)

9,100‌

257‌

52,066‌

Health

Care

Equipment

&

Supplies

2.4%

Artivion (1)

11,550‌

198‌

Asensus

Surgical  (1)

185,500‌

94‌

AtriCure  (1)

9,700‌

479‌

Avanos

Medical  (1)

9,042‌

231‌

Axonics  (1)

6,400‌

323‌

Butterfly

Network  (1)(3)

38,100‌

88‌

Cerus  (1)

39,200‌

96‌

ClearPoint

Neuro  (1)(3)

17,700‌

128‌

CONMED 

4,950‌

673‌

Embecta 

8,200‌

177‌

Enovis  (1)

6,714‌

430‌

Envista

Holdings  (1)

23,543‌

797‌

Glaukos  (1)

8,600‌

612‌

Globus

Medical,

Class

A  (1)

11,300‌

673‌

Haemonetics  (1)

6,800‌

579‌

ICU

Medical  (1)

1,600‌

285‌

Inari

Medical  (1)

10,455‌

608‌

Inogen  (1)

9,500‌

110‌

Inspire

Medical

Systems  (1)

5,000‌

1,623‌

Integer

Holdings  (1)

3,850‌

341‌

Integra

LifeSciences

Holdings  (1)

9,900‌

407‌

iRhythm

Technologies  (1)

5,836‌

609‌

Lantheus

Holdings  (1)

10,100‌

848‌

LivaNova  (1)

5,300‌

272‌

Masimo  (1)

6,000‌

987‌

Merit

Medical

Systems  (1)

6,806‌

569‌

Neogen  (1)

32,132‌

699‌

Nevro  (1)

7,746‌

197‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

36

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Novocure  (1)

13,795‌

572‌

NuVasive  (1)

8,000‌

333‌

Omnicell  (1)

6,612‌

487‌

OraSure

Technologies  (1)

20,282‌

102‌

Orthofix

Medical  (1)

11,780‌

213‌

Outset

Medical  (1)

8,100‌

177‌

Penumbra  (1)

6,080‌

2,092‌

PROCEPT

BioRobotics  (1)

5,200‌

184‌

Pulmonx  (1)

11,500‌

151‌

QuidelOrtho  (1)

6,900‌

572‌

Senseonics

Holdings  (1)

83,400‌

64‌

Shockwave

Medical  (1)

5,400‌

1,541‌

Silk

Road

Medical  (1)

10,000‌

325‌

STAAR

Surgical  (1)

7,700‌

405‌

Tactile

Systems

Technology  (1)

7,950‌

198‌

Tandem

Diabetes

Care  (1)

11,300‌

277‌

TransMedics

Group  (1)

4,600‌

386‌

Zimvie  (1)

7,400‌

83‌

21,295‌

Health

Care

Providers

&

Services

1.8%

Acadia

Healthcare  (1)

13,300‌

1,059‌

Accolade  (1)

14,200‌

191‌

AdaptHealth  (1)

11,800‌

144‌

agilon

health  (1)(3)

37,918‌

658‌

Alignment

Healthcare  (1)

20,500‌

118‌

Amedisys  (1)

5,600‌

512‌

AMN

Healthcare

Services  (1)

6,505‌

710‌

Apollo

Medical

Holdings  (1)

7,600‌

240‌

Aveanna

Healthcare

Holdings  (1)(3)

73,400‌

124‌

Brookdale

Senior

Living  (1)

24,407‌

103‌

Cano

Health  (1)(3)

64,800‌

90‌

CareMax  (1)

31,000‌

96‌

Castle

Biosciences  (1)

4,600‌

63‌

Chemed 

2,100‌

1,138‌

Community

Health

Systems  (1)

24,200‌

107‌

CorVel  (1)

2,150‌

416‌

Cross

Country

Healthcare  (1)

5,500‌

154‌

DocGo  (1)(3)

16,700‌

157‌

Encompass

Health 

13,400‌

907‌

Enhabit  (1)

11,500‌

132‌

Ensign

Group 

8,800‌

840‌

Guardant

Health  (1)

16,600‌

594‌

HealthEquity  (1)

12,700‌

802‌

Hims

&

Hers

Health  (1)

13,877‌

130‌

LifeStance

Health

Group  (1)

11,800‌

108‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

37

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

ModivCare  (1)

2,700‌

122‌

National

HealthCare 

4,004‌

248‌

National

Research 

4,572‌

199‌

NeoGenomics  (1)

22,200‌

357‌

OPKO

Health  (1)(3)

101,686‌

221‌

Option

Care

Health  (1)

20,300‌

660‌

Owens

&

Minor  (1)

12,100‌

230‌

Patterson 

11,719‌

390‌

Pediatrix

Medical

Group  (1)

6,500‌

92‌

Pennant

Group  (1)

12,250‌

150‌

Premier,

Class

A 

11,380‌

315‌

Privia

Health

Group  (1)

12,000‌

313‌

Progyny  (1)

11,600‌

456‌

R1

RCM  (1)

15,900‌

293‌

RadNet  (1)

7,129‌

233‌

Select

Medical

Holdings 

23,975‌

764‌

Surgery

Partners  (1)

10,700‌

481‌

Tenet

Healthcare  (1)

15,700‌

1,278‌

16,395‌

Health

Care

Technology

0.8%

CareCloud (1)

23,700‌

70‌

Certara  (1)

19,200‌

350‌

Doximity,

Class

A  (1)

16,702‌

568‌

Evolent

Health,

Class

A  (1)

12,700‌

385‌

Health

Catalyst  (1)

12,900‌

161‌

HealthStream 

9,300‌

228‌

Multiplan  (1)(3)

62,700‌

132‌

NextGen

Healthcare  (1)

9,000‌

146‌

Phreesia  (1)

10,300‌

319‌

Schrodinger  (1)(3)

9,500‌

474‌

Sharecare  (1)

87,200‌

153‌

Teladoc

Health  (1)

14,962‌

379‌

Veeva

Systems,

Class

A  (1)

20,986‌

4,150‌

7,515‌

Life

Sciences

Tools

&

Services

1.0%

10X

Genomics,

Class

A  (1)

13,700‌

765‌

Adaptive

Biotechnologies  (1)

25,700‌

172‌

Avantor  (1)

95,737‌

1,966‌

Azenta  (1)(3)

10,900‌

509‌

BioLife

Solutions  (1)

5,100‌

113‌

Bruker 

11,755‌

869‌

Codexis  (1)

33,100‌

93‌

CryoPort  (1)(3)

8,000‌

138‌

Maravai

LifeSciences

Holdings,

Class

A  (1)

19,000‌

236‌

Medpace

Holdings  (1)

3,700‌

889‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

38

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Mesa

Laboratories 

1,400‌

180‌

NanoString

Technologies  (1)(3)

14,934‌

61‌

Omniab,

Earn

Out

Shares

$12.50  (1)

525‌

—‌

Omniab,

Earn

Out

Shares

$15.00  (1)

525‌

—‌

Pacific

Biosciences

of

California  (1)

34,500‌

459‌

Personalis  (1)

37,100‌

70‌

Quanterix  (1)

7,200‌

162‌

Quantum-Si  (1)

30,000‌

54‌

Repligen  (1)

7,800‌

1,103‌

Seer  (1)

13,900‌

59‌

Sotera

Health  (1)

12,200‌

230‌

Syneos

Health  (1)

10,200‌

430‌

8,558‌

Pharmaceuticals

1.1%

Aclaris

Therapeutics  (1)

16,300‌

169‌

Amphastar

Pharmaceuticals  (1)

3,000‌

172‌

Amylyx

Pharmaceuticals  (1)

5,900‌

127‌

Arvinas  (1)

9,057‌

225‌

Atea

Pharmaceuticals  (1)

25,500‌

95‌

Axsome

Therapeutics  (1)(3)

5,000‌

359‌

Cassava

Sciences  (1)(3)

6,600‌

162‌

Collegium

Pharmaceutical  (1)

11,000‌

236‌

Corcept

Therapeutics  (1)

14,800‌

329‌

DICE

Therapeutics  (1)

5,600‌

260‌

Elanco

Animal

Health  (1)

79,738‌

802‌

Evolus  (1)

15,500‌

113‌

Harmony

Biosciences

Holdings  (1)

5,000‌

176‌

Harrow

Health  (1)

7,600‌

145‌

Innoviva  (1)

17,400‌

222‌

Intra-Cellular

Therapies  (1)

13,192‌

835‌

Jazz

Pharmaceuticals  (1)

7,500‌

930‌

NGM

Biopharmaceuticals  (1)

34,200‌

89‌

Nuvation

Bio  (1)

78,500‌

141‌

Pacira

BioSciences  (1)

7,100‌

285‌

Perrigo 

18,403‌

625‌

Phibro

Animal

Health,

Class

A 

9,514‌

130‌

Pliant

Therapeutics  (1)(3)

7,100‌

129‌

Prestige

Consumer

Healthcare  (1)

8,571‌

509‌

Reata

Pharmaceuticals,

Class

A  (1)

4,073‌

415‌

Revance

Therapeutics  (1)

15,300‌

387‌

Royalty

Pharma,

Class

A 

50,812‌

1,562‌

Scilex

Holding  (1)(3)

10,602‌

56‌

Supernus

Pharmaceuticals  (1)

6,900‌

208‌

Terns

Pharmaceuticals  (1)

8,300‌

73‌

TEVA

Pharm,

Rights,

1/2/2024  (1)(2)(3)

81,200‌

—‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

39

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Ventyx

Biosciences  (1)

4,200‌

138‌

WaVe

Life

Sciences  (1)(3)

18,400‌

67‌

Xeris

Biopharma

Holdings,

CVR  (1)(2)

36,100‌

12‌

10,183‌

Total

Health

Care

116,012‌

INDUSTRIALS

&

BUSINESS

SERVICES

18.1%

Aerospace

&

Defense

1.2%

Aerojet

Rocketdyne

Holdings  (1)

14,410‌

791‌

AeroVironment  (1)

3,900‌

399‌

Archer

Aviation,

Class

A  (1)

29,700‌

122‌

Astra

Space  (1)(3)

222,300‌

82‌

BWX

Technologies 

13,037‌

933‌

Curtiss-Wright 

6,000‌

1,102‌

HEICO 

4,211‌

745‌

HEICO,

Class

A 

9,825‌

1,381‌

Hexcel 

10,100‌

768‌

Kaman 

9,933‌

242‌

Mercury

Systems  (1)

7,900‌

273‌

Moog,

Class

A 

5,630‌

611‌

National

Presto

Industries 

2,831‌

207‌

Park

Aerospace 

15,200‌

210‌

Parsons  (1)

4,600‌

222‌

Rocket

Lab

USA  (1)

29,700‌

178‌

Spirit

AeroSystems

Holdings,

Class

A 

25,740‌

751‌

Triumph

Group  (1)

21,900‌

271‌

V2X  (1)

2,879‌

143‌

Virgin

Galactic

Holdings  (1)

33,000‌

128‌

Woodward 

7,000‌

832‌

10,391‌

Air

Freight

&

Logistics

0.2%

Air

Transport

Services

Group  (1)

12,200‌

230‌

Forward

Air 

3,500‌

371‌

GXO

Logistics  (1)

17,266‌

1,085‌

Hub

Group,

Class

A  (1)

5,300‌

426‌

2,112‌

Building

Products

2.0%

AAON 

6,090‌

577‌

Advanced

Drainage

Systems 

8,791‌

1,000‌

Alpha

Pro

Tech  (1)

16,000‌

64‌

Apogee

Enterprises 

3,152‌

150‌

Armstrong

World

Industries 

8,300‌

610‌

AZEK  (1)

17,033‌

516‌

AZZ 

4,929‌

214‌

Builders

FirstSource  (1)

18,708‌

2,544‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

40

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Carlisle 

6,320‌

1,621‌

CSW

Industrials 

2,400‌

399‌

Fortune

Brands

Innovations 

14,113‌

1,015‌

Gibraltar

Industries  (1)

6,800‌

428‌

Griffon 

10,500‌

423‌

Hayward

Holdings  (1)(3)

13,400‌

172‌

JELD-WEN

Holding  (1)

11,900‌

209‌

Lennox

International 

4,603‌

1,501‌

Masonite

International  (1)

3,900‌

400‌

Owens

Corning 

13,500‌

1,762‌

PGT

Innovations  (1)

15,419‌

449‌

Resideo

Technologies  (1)

22,644‌

400‌

Simpson

Manufacturing 

5,600‌

776‌

Trex  (1)

17,200‌

1,128‌

UFP

Industries 

8,770‌

851‌

Zurn

Elkay

Water

Solutions 

19,800‌

532‌

17,741‌

Commercial

Services

&

Supplies

1.2%

ABM

Industries 

11,150‌

476‌

ACCO

Brands 

30,789‌

160‌

ACV

Auctions,

Class

A  (1)

19,300‌

333‌

Brady,

Class

A 

9,500‌

452‌

Brink's 

7,749‌

526‌

Casella

Waste

Systems,

Class

A  (1)

9,203‌

832‌

Cimpress  (1)

3,800‌

226‌

Clean

Harbors  (1)

7,200‌

1,184‌

CoreCivic  (1)

24,596‌

231‌

Ennis 

12,453‌

254‌

Enviri  (1)

19,160‌

189‌

GEO

Group  (1)(3)

29,295‌

210‌

HNI 

9,310‌

262‌

Interface 

8,600‌

76‌

MillerKnoll 

9,500‌

140‌

Montrose

Environmental

Group  (1)

4,200‌

177‌

MSA

Safety 

5,500‌

957‌

OPENLANE  (1)

20,400‌

310‌

Pitney

Bowes 

63,200‌

224‌

Quad/Graphics  (1)

25,000‌

94‌

RB

Global 

20,941‌

1,256‌

Stericycle  (1)

14,300‌

664‌

Tetra

Tech 

7,150‌

1,171‌

UniFirst 

1,501‌

233‌

Viad  (1)

7,325‌

197‌

10,834‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

41

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Construction

&

Engineering

1.4%

AECOM 

19,095‌

1,617‌

Ameresco,

Class

A  (1)(3)

5,200‌

253‌

API

Group  (1)

23,900‌

652‌

Arcosa 

6,887‌

522‌

Comfort

Systems

USA 

5,798‌

952‌

Construction

Partners,

Class

A  (1)

7,161‌

225‌

Dycom

Industries  (1)

2,923‌

332‌

EMCOR

Group 

8,060‌

1,489‌

Fluor  (1)

16,198‌

479‌

Granite

Construction 

7,114‌

283‌

MasTec  (1)

8,950‌

1,056‌

Matrix

Service  (1)

20,011‌

118‌

MDU

Resources

Group 

26,791‌

561‌

MYR

Group  (1)

1,800‌

249‌

Primoris

Services 

11,600‌

353‌

Sterling

Infrastructure  (1)

7,063‌

394‌

Valmont

Industries 

3,400‌

990‌

WillScot

Mobile

Mini

Holdings  (1)

33,237‌

1,588‌

12,113‌

Electrical

Equipment

1.7%

Acuity

Brands 

5,000‌

815‌

American

Superconductor  (1)

36,400‌

228‌

Array

Technologies  (1)

22,100‌

500‌

Atkore  (1)

6,300‌

982‌

Blink

Charging  (1)(3)

12,500‌

75‌

Bloom

Energy,

Class

A  (1)(3)

28,400‌

464‌

ChargePoint

Holdings  (1)(3)

32,055‌

282‌

Encore

Wire 

3,000‌

558‌

Energy

Vault

Holdings  (1)(3)

23,500‌

64‌

EnerSys 

4,800‌

521‌

Enovix  (1)(3)

18,800‌

339‌

Fluence

Energy  (1)(3)

4,900‌

131‌

FTC

Solar  (1)(3)

34,300‌

110‌

FuelCell

Energy  (1)(3)

51,600‌

112‌

GrafTech

International 

50,500‌

255‌

Hubbell 

7,828‌

2,595‌

LSI

Industries 

16,993‌

213‌

NEXTracker,

Class

A  (1)

4,200‌

167‌

nVent

Electric 

26,200‌

1,354‌

Plug

Power  (1)(3)

66,500‌

691‌

Regal

Rexnord 

8,547‌

1,315‌

Sensata

Technologies

Holding 

21,500‌

967‌

SES

AI  (1)(3)

37,900‌

93‌

Shoals

Technologies

Group,

Class

A  (1)

21,446‌

548‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

42

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Stem  (1)(3)

18,500‌

106‌

SunPower  (1)(3)

11,300‌

111‌

Sunrun  (1)

27,405‌

489‌

Sunworks  (1)

50,900‌

58‌

Thermon

Group

Holdings  (1)

4,000‌

106‌

Vertiv

Holdings 

36,850‌

913‌

Vicor  (1)

4,000‌

216‌

15,378‌

Ground

Transportation

2.4%

ArcBest 

3,500‌

346‌

Avis

Budget

Group  (1)

3,451‌

789‌

Covenant

Logistics

Group 

6,100‌

267‌

Heartland

Express 

17,323‌

284‌

Hertz

Global

Holdings  (1)

23,284‌

428‌

Knight-Swift

Transportation

Holdings 

24,292‌

1,350‌

Landstar

System 

5,400‌

1,040‌

Lyft,

Class

A  (1)

38,100‌

365‌

Marten

Transport 

8,800‌

189‌

RXO  (1)

15,500‌

351‌

Ryder

System 

5,075‌

430‌

Saia  (1)

4,400‌

1,507‌

Uber

Technologies  (1)

286,067‌

12,350‌

U-Haul

Holding 

11,400‌

578‌

U-Haul

Holding  (3)

1,200‌

66‌

Werner

Enterprises 

7,353‌

325‌

XPO  (1)

15,500‌

915‌

21,580‌

Machinery

3.1%

3D

Systems  (1)

31,850‌

316‌

AGCO 

8,650‌

1,137‌

Alamo

Group 

2,700‌

497‌

Albany

International,

Class

A 

5,803‌

541‌

Allison

Transmission

Holdings 

7,963‌

450‌

Astec

Industries 

4,900‌

223‌

Barnes

Group 

6,200‌

262‌

Chart

Industries  (1)

5,751‌

919‌

Commercial

Vehicle

Group  (1)

22,400‌

249‌

Crane 

6,841‌

610‌

Crane

NXT 

6,841‌

386‌

Desktop

Metal,

Class

A  (1)

50,600‌

90‌

Donaldson 

17,842‌

1,115‌

Douglas

Dynamics 

8,300‌

248‌

Enerpac

Tool

Group 

11,000‌

297‌

EnPro

Industries 

2,753‌

368‌

Esab 

8,014‌

533‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

43

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

ESCO

Technologies 

3,070‌

318‌

Federal

Signal 

10,700‌

685‌

Flowserve 

13,281‌

493‌

Franklin

Electric 

4,100‌

422‌

Graco 

20,583‌

1,777‌

Greenbrier 

6,800‌

293‌

Helios

Technologies 

6,000‌

397‌

Hillenbrand 

8,861‌

454‌

Hurco 

12,100‌

262‌

Hyliion

Holdings  (1)(3)

44,400‌

74‌

Hyster-Yale

Materials

Handling 

3,300‌

184‌

ITT 

9,500‌

886‌

John

Bean

Technologies 

5,472‌

664‌

Kadant 

1,100‌

244‌

Kennametal 

4,200‌

119‌

Lincoln

Electric

Holdings 

7,037‌

1,398‌

Microvast

Holdings  (1)(3)

53,600‌

86‌

Middleby  (1)

9,135‌

1,350‌

Mueller

Industries 

7,400‌

646‌

Mueller

Water

Products,

Class

A 

37,943‌

616‌

NN  (1)(3)

53,200‌

127‌

Oshkosh 

7,600‌

658‌

Park-Ohio

Holdings 

6,209‌

118‌

Proto

Labs  (1)

7,900‌

276‌

RBC

Bearings  (1)

4,600‌

1,000‌

Shyft

Group 

8,300‌

183‌

SPX

Technologies  (1)

8,705‌

740‌

Symbotic  (1)

2,300‌

98‌

Tennant 

2,800‌

227‌

Terex 

10,200‌

610‌

Timken 

11,750‌

1,075‌

Titan

International  (1)

14,250‌

164‌

Toro 

17,127‌

1,741‌

Trinity

Industries 

9,658‌

248‌

Wabash

National 

11,400‌

292‌

Watts

Water

Technologies,

Class

A 

3,450‌

634‌

27,800‌

Marine

Transportation

0.1%

Kirby (1)

7,865‌

605‌

Matson 

7,350‌

572‌

1,177‌

Passenger

Airlines

0.2%

Allegiant

Travel  (1)

2,500‌

316‌

Frontier

Group

Holdings  (1)

9,000‌

87‌

JetBlue

Airways  (1)

37,100‌

329‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

44

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Joby

Aviation  (1)

54,700‌

561‌

SkyWest  (1)

6,130‌

250‌

Spirit

Airlines 

16,900‌

290‌

Sun

Country

Airlines

Holdings  (1)

6,200‌

139‌

1,972‌

Professional

Services

2.6%

Alight,

Class

A  (1)

47,800‌

442‌

ASGN  (1)

7,150‌

541‌

Asure

Software  (1)

5,941‌

72‌

Booz

Allen

Hamilton

Holding 

19,400‌

2,165‌

CACI

International,

Class

A  (1)

3,400‌

1,159‌

CBIZ  (1)

9,577‌

510‌

Clarivate  (1)(3)

54,240‌

517‌

Concentrix 

6,200‌

501‌

Conduent  (1)

20,140‌

68‌

CRA

International 

1,873‌

191‌

CSG

Systems

International 

1,820‌

96‌

Dun

&

Bradstreet

Holdings 

32,362‌

374‌

ExlService

Holdings  (1)

5,400‌

816‌

Exponent 

8,100‌

756‌

FTI

Consulting  (1)

5,869‌

1,116‌

Genpact 

18,800‌

706‌

Huron

Consulting

Group  (1)

3,160‌

268‌

ICF

International 

2,305‌

287‌

Innodata  (1)

10,400‌

118‌

Insperity 

4,900‌

583‌

KBR 

17,976‌

1,169‌

Kforce 

3,228‌

202‌

Korn

Ferry 

7,441‌

369‌

Legalzoom.com  (1)

14,700‌

178‌

ManpowerGroup 

7,142‌

567‌

Mastech

Digital  (1)

14,882‌

147‌

Maximus 

8,176‌

691‌

Paycor

HCM  (1)(3)

6,700‌

159‌

Paylocity

Holding  (1)

6,539‌

1,207‌

Science

Applications

International 

7,755‌

872‌

SS&C

Technologies

Holdings 

35,609‌

2,158‌

TaskUS,

Class

A  (1)

5,600‌

63‌

TransUnion 

28,893‌

2,263‌

TriNet

Group  (1)

4,200‌

399‌

TrueBlue  (1)

7,900‌

140‌

TTEC

Holdings 

3,390‌

115‌

Upwork  (1)

20,600‌

192‌

Verra

Mobility  (1)

23,900‌

471‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

45

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Willdan

Group  (1)

8,700‌

167‌

22,815‌

Trading

Companies

&

Distributors

2.0%

Air

Lease 

14,425‌

604‌

Applied

Industrial

Technologies 

5,644‌

817‌

Beacon

Roofing

Supply  (1)

6,100‌

506‌

BlueLinx

Holdings  (1)

2,100‌

197‌

Boise

Cascade 

7,500‌

678‌

Distribution

Solutions

Group  (1)

4,900‌

255‌

Ferguson 

29,344‌

4,616‌

FTAI

Aviation 

10,821‌

343‌

GATX 

5,450‌

702‌

GMS  (1)

7,685‌

532‌

H&E

Equipment

Services 

4,526‌

207‌

Herc

Holdings 

3,855‌

528‌

McGrath

RentCorp 

4,300‌

398‌

MRC

Global  (1)

20,600‌

207‌

MSC

Industrial

Direct,

Class

A 

3,800‌

362‌

NOW  (1)

27,700‌

287‌

Rush

Enterprises,

Class

A 

5,011‌

304‌

SiteOne

Landscape

Supply  (1)

7,400‌

1,238‌

Titan

Machinery  (1)

6,900‌

204‌

Triton

International 

6,600‌

549‌

Univar

Solutions  (1)

24,300‌

871‌

Veritiv 

1,800‌

226‌

Watsco  (3)

4,200‌

1,602‌

WESCO

International 

6,258‌

1,121‌

Willis

Lease

Finance  (1)

3,600‌

141‌

Xometry,

Class

A  (1)

3,600‌

76‌

17,571‌

Total

Industrials

&

Business

Services

161,484‌

INFORMATION

TECHNOLOGY

17.7%

Communications

Equipment

0.6%

Calix (1)

9,200‌

459‌

Ciena  (1)

18,900‌

803‌

Clearfield  (1)(3)

2,865‌

136‌

CommScope

Holding  (1)

39,600‌

223‌

Comtech

Telecommunications 

9,943‌

91‌

Digi

International  (1)

7,597‌

299‌

Extreme

Networks  (1)

11,446‌

298‌

Harmonic  (1)

5,800‌

94‌

Infinera  (1)(3)

37,300‌

180‌

KVH

Industries  (1)

22,263‌

203‌

Lumentum

Holdings  (1)(3)

11,260‌

639‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

46

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

NETGEAR  (1)

7,350‌

104‌

NetScout

Systems  (1)

9,400‌

291‌

Ribbon

Communications  (1)

55,900‌

156‌

Ubiquiti  (3)

552‌

97‌

Viasat  (1)

13,200‌

545‌

Viavi

Solutions  (1)

35,800‌

406‌

5,024‌

Electronic

Equipment,

Instruments

&

Components

2.2%

Advanced

Energy

Industries 

5,750‌

641‌

Aeva

Technologies  (1)

64,700‌

81‌

Arlo

Technologies  (1)

21,152‌

231‌

Arrow

Electronics  (1)

7,975‌

1,142‌

Avnet 

11,150‌

562‌

Badger

Meter 

4,400‌

649‌

Belden 

6,763‌

647‌

Benchmark

Electronics 

5,799‌

150‌

Cognex 

25,700‌

1,440‌

Coherent  (1)

16,747‌

854‌

CTS 

7,158‌

305‌

ePlus  (1)

2,879‌

162‌

Fabrinet  (1)

6,000‌

779‌

FARO

Technologies  (1)

5,900‌

96‌

Insight

Enterprises  (1)

5,150‌

754‌

IPG

Photonics  (1)

4,400‌

598‌

Itron  (1)

6,200‌

447‌

Jabil 

17,100‌

1,846‌

Kimball

Electronics  (1)

10,770‌

298‌

Knowles  (1)

20,700‌

374‌

Lightwave

Logic  (1)(3)

21,200‌

148‌

Littelfuse 

4,139‌

1,206‌

Luna

Innovations  (1)

17,915‌

163‌

Methode

Electronics 

7,250‌

243‌

MicroVision  (1)(3)

42,600‌

195‌

National

Instruments 

18,225‌

1,046‌

Novanta  (1)

5,451‌

1,003‌

OSI

Systems  (1)

1,938‌

228‌

Ouster  (1)

9,016‌

45‌

PC

Connection 

4,800‌

216‌

Plexus  (1)

4,260‌

418‌

Rogers  (1)

2,650‌

429‌

Sanmina  (1)

9,900‌

597‌

ScanSource  (1)

8,500‌

251‌

TD

SYNNEX 

4,300‌

404‌

Vishay

Intertechnology 

8,452‌

248‌

Vishay

Precision

Group  (1)

3,522‌

131‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

47

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Vontier 

25,200‌

812‌

Vuzix  (1)(3)

26,600‌

136‌

19,975‌

IT

Services

2.3%

BigCommerce

Holdings,

Series

1  (1)(3)

8,685‌

86‌

Cloudflare,

Class

A  (1)

38,850‌

2,540‌

DigitalOcean

Holdings  (1)(3)

6,954‌

279‌

Fastly,

Class

A  (1)

16,700‌

263‌

GoDaddy,

Class

A  (1)

23,275‌

1,749‌

Grid

Dynamics

Holdings  (1)

9,400‌

87‌

Hackett

Group 

3,273‌

73‌

Kratos

Defense

&

Security

Solutions  (1)

34,100‌

489‌

Kyndryl

Holdings  (1)

27,200‌

361‌

MongoDB  (1)

10,064‌

4,136‌

Okta  (1)

21,174‌

1,469‌

Perficient  (1)

5,700‌

475‌

Rackspace

Technology  (1)

24,400‌

66‌

Snowflake,

Class

A  (1)

40,525‌

7,132‌

Squarespace,

Class

A  (1)

2,800‌

88‌

Twilio,

Class

A  (1)

22,600‌

1,438‌

Unisys  (1)

28,200‌

112‌

20,843‌

Semiconductors

&

Semiconductor

Equipment

3.0%

ACM

Research,

Class

A  (1)

10,800‌

141‌

Aehr

Test

Systems  (1)

2,800‌

115‌

Allegro

MicroSystems  (1)

5,229‌

236‌

Alpha

&

Omega

Semiconductor  (1)

5,600‌

184‌

Ambarella  (1)

3,300‌

276‌

Amkor

Technology 

15,120‌

450‌

Atomera  (1)(3)

10,100‌

89‌

Axcelis

Technologies  (1)

3,137‌

575‌

Cirrus

Logic  (1)

8,740‌

708‌

Cohu  (1)

10,300‌

428‌

Credo

Technology

Group

Holding  (1)

10,400‌

180‌

Diodes  (1)

5,950‌

550‌

Entegris 

21,864‌

2,423‌

FormFactor  (1)

13,200‌

452‌

Impinj  (1)

3,600‌

323‌

Kopin  (1)

69,500‌

149‌

Kulicke

&

Soffa

Industries 

9,600‌

571‌

Lattice

Semiconductor  (1)

19,500‌

1,873‌

MACOM

Technology

Solutions

Holdings  (1)

9,600‌

629‌

Marvell

Technology 

125,379‌

7,495‌

MaxLinear  (1)

11,870‌

375‌

MKS

Instruments 

9,600‌

1,038‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

48

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

NVE 

3,600‌

351‌

Onto

Innovation  (1)

8,100‌

943‌

Photronics  (1)

7,450‌

192‌

Pixelworks  (1)(3)

62,300‌

108‌

Power

Integrations 

8,122‌

769‌

Rambus  (1)

18,700‌

1,200‌

Semtech  (1)

16,500‌

420‌

Silicon

Laboratories  (1)

4,500‌

710‌

SiTime  (1)

2,500‌

295‌

Synaptics  (1)

4,875‌

416‌

Universal

Display 

6,169‌

889‌

Wolfspeed  (1)(3)

14,491‌

806‌

26,359‌

Software

8.9%

8x8 (1)

43,100‌

182‌

A10

Networks 

9,063‌

132‌

ACI

Worldwide  (1)

13,554‌

314‌

Adeia 

22,764‌

251‌

Agilysys  (1)

4,295‌

295‌

Alarm.com

Holdings  (1)

9,850‌

509‌

Altair

Engineering,

Class

A  (1)

8,111‌

615‌

Alteryx,

Class

A  (1)

6,800‌

309‌

Appfolio,

Class

A  (1)

826‌

142‌

Appian,

Class

A  (1)

8,200‌

390‌

AppLovin,

Class

A  (1)

20,312‌

523‌

Asana,

Class

A  (1)

9,198‌

203‌

Aspen

Technology  (1)

4,210‌

706‌

Atlassian,

Class

A  (1)

22,482‌

3,773‌

Aurora

Innovation  (1)(3)

76,197‌

224‌

Bentley

Systems,

Class

B 

23,735‌

1,287‌

BILL

Holdings  (1)

16,183‌

1,891‌

Black

Knight  (1)

23,452‌

1,401‌

Blackbaud  (1)

8,400‌

598‌

BlackLine  (1)

5,582‌

300‌

Box,

Class

A  (1)

18,700‌

549‌

Braze,

Class

A  (1)

4,400‌

193‌

C3.ai,

Class

A  (1)(3)

10,200‌

372‌

Cerence  (1)

9,888‌

289‌

CommVault

Systems  (1)

5,300‌

385‌

Confluent,

Class

A  (1)

28,995‌

1,024‌

Consensus

Cloud

Solutions  (1)

2,767‌

86‌

Crowdstrike

Holdings,

Class

A  (1)

30,003‌

4,407‌

Datadog,

Class

A  (1)

35,500‌

3,492‌

Digimarc  (1)(3)

5,400‌

159‌

Digital

Turbine  (1)

16,200‌

150‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

49

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

DocuSign  (1)

30,001‌

1,533‌

Dolby

Laboratories,

Class

A 

9,140‌

765‌

Domo,

Class

B  (1)

7,700‌

113‌

DoubleVerify

Holdings  (1)

7,404‌

288‌

Dropbox,

Class

A  (1)

38,748‌

1,033‌

Dynatrace  (1)

32,573‌

1,677‌

E2open

Parent

Holdings  (1)

42,200‌

236‌

Elastic  (1)

7,900‌

507‌

Envestnet  (1)

5,800‌

344‌

Everbridge  (1)

6,587‌

177‌

Five9  (1)

9,410‌

776‌

ForgeRock,

Class

A  (1)

5,400‌

111‌

Freshworks,

Class

A  (1)

22,858‌

402‌

Gitlab,

Class

A  (1)(3)

8,200‌

419‌

Guidewire

Software  (1)

13,142‌

1,000‌

HashiCorp,

Class

A  (1)

15,662‌

410‌

HubSpot  (1)

7,100‌

3,778‌

Intapp  (1)

1,800‌

75‌

Intellicheck  (1)

19,500‌

48‌

InterDigital 

5,460‌

527‌

Jamf

Holding  (1)

10,900‌

213‌

LivePerson  (1)

20,453‌

92‌

LiveRamp

Holdings  (1)

2,190‌

63‌

Manhattan

Associates  (1)

9,340‌

1,867‌

Marathon

Digital

Holdings  (1)(3)

12,400‌

172‌

Matterport  (1)

63,300‌

199‌

MicroStrategy,

Class

A  (1)(3)

1,356‌

464‌

Mitek

Systems  (1)(3)

18,497‌

201‌

Model

N  (1)

5,600‌

198‌

N-able  (1)

18,150‌

262‌

nCino  (1)

12,431‌

374‌

NCR  (1)

12,067‌

304‌

New

Relic  (1)

7,200‌

471‌

Nutanix,

Class

A  (1)

29,350‌

823‌

Olo,

Class

A  (1)

18,700‌

121‌

ON24 

27,500‌

223‌

OneSpan  (1)

11,000‌

163‌

PagerDuty  (1)

18,300‌

411‌

Palantir

Technologies,

Class

A  (1)

240,947‌

3,694‌

Pegasystems 

5,500‌

271‌

PowerSchool

Holdings,

Class

A  (1)(3)

4,500‌

86‌

Procore

Technologies  (1)

10,930‌

711‌

Progress

Software 

6,200‌

360‌

PROS

Holdings  (1)

9,200‌

283‌

Q2

Holdings  (1)

10,900‌

337‌

Qualys  (1)

4,500‌

581‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

50

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Rapid7  (1)

8,404‌

381‌

RingCentral,

Class

A  (1)

7,900‌

259‌

Riot

Platforms  (1)

21,600‌

255‌

Samsara,

Class

A  (1)

14,939‌

414‌

SentinelOne,

Class

A  (1)(3)

30,608‌

462‌

Smartsheet,

Class

A  (1)

19,436‌

744‌

SolarWinds  (1)

18,150‌

186‌

Splunk  (1)

20,741‌

2,200‌

Sprinklr,

Class

A  (1)

6,100‌

84‌

Sprout

Social,

Class

A  (1)(3)

7,300‌

337‌

SPS

Commerce  (1)

5,919‌

1,137‌

Telos  (1)

27,006‌

69‌

Tenable

Holdings  (1)

15,964‌

695‌

Teradata  (1)

11,151‌

596‌

UiPath,

Class

A  (1)

49,711‌

824‌

Unity

Software  (1)

27,240‌

1,183‌

Upland

Software  (1)

20,100‌

72‌

Varonis

Systems  (1)

12,500‌

333‌

Verint

Systems  (1)

13,400‌

470‌

Veritone  (1)

15,800‌

62‌

Vertex,

Class

A  (1)

12,330‌

240‌

VMware,

Class

A  (1)

28,664‌

4,119‌

Workday,

Class

A  (1)

29,777‌

6,726‌

Workiva  (1)

7,110‌

723‌

Xperi  (1)

10,885‌

143‌

Yext  (1)

13,600‌

154‌

Zeta

Global

Holdings,

Class

A  (1)

17,200‌

147‌

Zoom

Video

Communications,

Class

A  (1)

30,150‌

2,047‌

Zscaler  (1)

12,881‌

1,884‌

Zuora,

Class

A  (1)

34,600‌

380‌

79,640‌

Technology

Hardware,

Storage

&

Peripherals

0.7%

Dell

Technologies,

Class

C 

30,497‌

1,650‌

Eastman

Kodak  (1)

19,000‌

88‌

Immersion 

20,635‌

146‌

Intevac  (1)

30,000‌

112‌

IonQ  (1)

20,500‌

277‌

Pure

Storage,

Class

A  (1)

43,500‌

1,602‌

Quantum  (1)

74,600‌

81‌

Super

Micro

Computer  (1)

6,807‌

1,697‌

Turtle

Beach  (1)

10,100‌

118‌

Xerox

Holdings 

13,400‌

199‌

5,970‌

Total

Information

Technology

157,811‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

51

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

MATERIALS

4.0%

Chemicals

1.6%

American

Vanguard 

12,466‌

223‌

Ashland 

6,100‌

530‌

Avient 

14,230‌

582‌

Axalta

Coating

Systems  (1)

23,050‌

756‌

Balchem 

5,300‌

715‌

Cabot 

8,550‌

572‌

Chase 

1,650‌

200‌

Chemours 

22,400‌

826‌

Ecovyst  (1)

26,100‌

299‌

Element

Solutions 

29,300‌

563‌

Ginkgo

Bioworks

Holdings  (1)

152,333‌

283‌

HB

Fuller 

6,940‌

496‌

Huntsman 

28,100‌

759‌

Ingevity  (1)

7,700‌

448‌

Innospec 

4,700‌

472‌

Koppers

Holdings 

7,200‌

246‌

Livent  (1)(3)

28,500‌

782‌

Minerals

Technologies 

2,410‌

139‌

NewMarket 

1,000‌

402‌

Olin 

17,130‌

880‌

PureCycle

Technologies  (1)(3)

23,200‌

248‌

Quaker

Chemical  (3)

2,500‌

487‌

RPM

International 

19,400‌

1,741‌

Scotts

Miracle-Gro 

7,149‌

448‌

Sensient

Technologies 

3,180‌

226‌

Stepan 

3,100‌

296‌

Trinseo 

6,900‌

87‌

Tronox

Holdings 

17,600‌

224‌

Westlake 

4,842‌

579‌

14,509‌

Construction

Materials

0.2%

Eagle

Materials 

5,061‌

944‌

Knife

River  (1)

6,697‌

291‌

Summit

Materials,

Class

A  (1)

21,247‌

804‌

2,039‌

Containers

&

Packaging

0.8%

AptarGroup 

8,870‌

1,028‌

Berry

Global

Group 

17,400‌

1,120‌

Crown

Holdings 

18,120‌

1,574‌

Graphic

Packaging

Holding 

39,730‌

955‌

Greif,

Class

A 

5,200‌

358‌

Myers

Industries 

11,416‌

222‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

52

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

O-I

Glass  (1)

27,600‌

589‌

Silgan

Holdings 

7,240‌

339‌

Sonoco

Products 

9,573‌

565‌

TriMas 

7,800‌

214‌

6,964‌

Metals

&

Mining

1.3%

Alcoa 

19,546‌

663‌

Alpha

Metallurgical

Resources 

1,758‌

289‌

Ampco-Pittsburgh  (1)

21,600‌

69‌

Arconic  (1)

15,300‌

453‌

ATI  (1)

12,300‌

544‌

Carpenter

Technology 

8,700‌

488‌

Century

Aluminum  (1)

7,258‌

63‌

Cleveland-Cliffs  (1)

72,980‌

1,223‌

Coeur

Mining  (1)

43,900‌

125‌

Commercial

Metals 

14,100‌

743‌

Compass

Minerals

International 

4,600‌

157‌

Gold

Resource 

84,700‌

53‌

Haynes

International 

2,188‌

111‌

Hecla

Mining 

85,000‌

438‌

Kaiser

Aluminum 

1,236‌

89‌

Materion 

2,600‌

297‌

MP

Materials  (1)(3)

10,800‌

247‌

Olympic

Steel 

1,310‌

64‌

Piedmont

Lithium  (1)(3)

3,000‌

173‌

Reliance

Steel

&

Aluminum 

8,904‌

2,418‌

Royal

Gold 

10,379‌

1,191‌

Ryerson

Holding 

5,500‌

239‌

Schnitzer

Steel

Industries,

Class

A 

4,448‌

133‌

TimkenSteel  (1)

10,000‌

216‌

United

States

Steel 

33,200‌

830‌

Warrior

Met

Coal 

9,400‌

366‌

Worthington

Industries 

4,479‌

311‌

11,993‌

Paper

&

Forest

Products

0.1%

Clearwater

Paper  (1)

7,288‌

228‌

Louisiana-Pacific 

10,178‌

763‌

Sylvamo 

4,400‌

178‌

1,169‌

Total

Materials

36,674‌

REAL

ESTATE

5.9%

Diversified

Real

Estate

Investment

Trusts

0.4%

Broadstone

Net

Lease,

REIT 

26,596‌

411‌

Empire

State

Realty

Trust,

Class

A,

REIT  (3)

43,700‌

327‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

53

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Essential

Properties

Realty

Trust,

REIT 

19,300‌

454‌

Gladstone

Commercial,

REIT 

12,182‌

151‌

WP

Carey,

REIT 

30,015‌

2,028‌

3,371‌

Health

Care

Real

Estate

Investment

Trusts

0.5%

CareTrust

REIT,

REIT 

15,976‌

317‌

Community

Healthcare

Trust,

REIT 

7,300‌

241‌

Diversified

Healthcare

Trust,

REIT  (3)

88,800‌

200‌

Healthcare

Realty

Trust,

REIT 

40,919‌

772‌

LTC

Properties,

REIT 

11,016‌

364‌

Medical

Properties

Trust,

REIT  (3)

72,322‌

670‌

National

Health

Investors,

REIT 

5,820‌

305‌

Omega

Healthcare

Investors,

REIT 

34,569‌

1,061‌

Physicians

Realty

Trust,

REIT 

24,900‌

348‌

Sabra

Health

Care

REIT,

REIT 

18,969‌

223‌

Universal

Health

Realty

Income

Trust,

REIT 

6,850‌

326‌

4,827‌

Hotel

&

Resort

Real

Estate

Investment

Trusts

0.3%

Apple

Hospitality

REIT,

REIT 

26,600‌

402‌

DiamondRock

Hospitality,

REIT 

30,600‌

245‌

Hersha

Hospitality

Trust,

Class

A,

REIT 

22,600‌

138‌

Park

Hotels

&

Resorts,

REIT 

13,800‌

177‌

Pebblebrook

Hotel

Trust,

REIT  (3)

16,882‌

235‌

RLJ

Lodging

Trust,

REIT 

32,700‌

336‌

Ryman

Hospitality

Properties,

REIT 

8,026‌

746‌

Service

Properties

Trust,

REIT 

19,400‌

168‌

Summit

Hotel

Properties,

REIT 

30,400‌

198‌

Sunstone

Hotel

Investors,

REIT 

7,794‌

79‌

Xenia

Hotels

&

Resorts,

REIT 

25,900‌

319‌

3,043‌

Industrial

Real

Estate

Investment

Trusts

0.8%

Americold

Realty

Trust,

REIT 

31,024‌

1,002‌

EastGroup

Properties,

REIT 

6,896‌

1,197‌

First

Industrial

Realty

Trust,

REIT 

14,465‌

761‌

Innovative

Industrial

Properties,

REIT 

5,000‌

365‌

LXP

Industrial

Trust,

REIT 

37,929‌

370‌

Rexford

Industrial

Realty,

REIT 

30,289‌

1,582‌

STAG

Industrial,

REIT 

27,300‌

979‌

Terreno

Realty,

REIT 

12,225‌

735‌

6,991‌

Office

Real

Estate

Investment

Trusts

0.4%

Brandywine

Realty

Trust,

REIT 

34,143‌

159‌

Corporate

Office

Properties

Trust,

REIT 

18,489‌

439‌

Cousins

Properties,

REIT 

13,531‌

309‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

54

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Douglas

Emmett,

REIT  (3)

24,962‌

314‌

Easterly

Government

Properties,

REIT  (3)

14,986‌

217‌

Equity

Commonwealth,

REIT 

7,176‌

145‌

Franklin

Street

Properties,

REIT 

100,709‌

146‌

Highwoods

Properties,

REIT 

6,094‌

146‌

Hudson

Pacific

Properties,

REIT 

24,000‌

101‌

JBG

SMITH

Properties,

REIT 

16,315‌

245‌

Kilroy

Realty,

REIT 

12,720‌

383‌

Office

Properties

Income

Trust,

REIT 

19,941‌

154‌

Paramount

Group,

REIT 

33,300‌

148‌

Piedmont

Office

Realty

Trust,

Class

A,

REIT 

20,700‌

150‌

Postal

Realty

Trust,

Class

A,

REIT 

13,244‌

195‌

SL

Green

Realty,

REIT  (3)

10,988‌

330‌

Vornado

Realty

Trust,

REIT 

14,406‌

261‌

3,842‌

Real

Estate

Management

&

Development

0.6%

Anywhere

Real

Estate  (1)

21,100‌

141‌

Compass,

Class

A  (1)

40,900‌

143‌

Cushman

&

Wakefield  (1)

18,600‌

152‌

DigitalBridge

Group  (3)

24,300‌

357‌

Douglas

Elliman 

54,538‌

121‌

eXp

World

Holdings  (3)

15,400‌

312‌

FRP

Holdings  (1)

5,200‌

299‌

Howard

Hughes  (1)

2,800‌

221‌

Jones

Lang

LaSalle  (1)

6,910‌

1,077‌

Kennedy-Wilson

Holdings 

20,200‌

330‌

Newmark

Group,

Class

A 

25,804‌

161‌

Opendoor

Technologies,

Class

A  (1)(3)

74,600‌

300‌

Rafael

Holdings,

Class

B  (1)

29,321‌

61‌

Redfin  (1)(3)

19,500‌

242‌

Seritage

Growth

Properties,

Class

A,

REIT  (1)

19,400‌

173‌

Tejon

Ranch  (1)

14,820‌

255‌

Zillow

Group,

Class

A  (1)

5,741‌

283‌

Zillow

Group,

Class

C  (1)

19,918‌

1,001‌

5,629‌

Residential

Real

Estate

Investment

Trusts

1.0%

American

Homes

4

Rent,

Class

A,

REIT 

48,563‌

1,721‌

Apartment

Income

REIT,

REIT 

25,924‌

936‌

Apartment

Investment

&

Management,

Class

A,

REIT 

41,458‌

353‌

Bluerock

Homes

Trust  (1)

6,174‌

100‌

Centerspace,

REIT 

3,200‌

196‌

Equity

LifeStyle

Properties,

REIT 

29,002‌

1,940‌

Independence

Realty

Trust,

REIT 

17,706‌

323‌

Sun

Communities,

REIT 

19,150‌

2,498‌

UMH

Properties,

REIT 

15,372‌

246‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

55

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Veris

Residential,

REIT  (1)

20,200‌

324‌

8,637‌

Retail

Real

Estate

Investment

Trusts

0.9%

Acadia

Realty

Trust,

REIT 

21,179‌

305‌

Agree

Realty,

REIT 

8,700‌

569‌

Alexander's,

REIT 

1,630‌

300‌

Brixmor

Property

Group,

REIT 

44,200‌

972‌

Getty

Realty,

REIT 

11,643‌

394‌

Kite

Realty

Group

Trust,

REIT 

26,421‌

590‌

Macerich,

REIT 

28,457‌

321‌

Necessity

Retail

REIT,

REIT 

38,714‌

262‌

NNN

REIT,

REIT 

24,030‌

1,028‌

Phillips

Edison,

REIT  (3)

8,821‌

301‌

RPT

Realty,

REIT 

23,934‌

250‌

Saul

Centers,

REIT 

6,819‌

251‌

SITE

Centers,

REIT 

33,900‌

448‌

Spirit

Realty

Capital,

REIT 

22,360‌

880‌

Tanger

Factory

Outlet

Centers,

REIT 

16,700‌

368‌

Urban

Edge

Properties,

REIT 

26,700‌

412‌

Urstadt

Biddle

Properties,

Class

A,

REIT 

11,896‌

253‌

7,904‌

Specialized

Real

Estate

Investment

Trusts

1.0%

CubeSmart,

REIT 

37,281‌

1,665‌

EPR

Properties,

REIT 

12,300‌

576‌

Four

Corners

Property

Trust,

REIT 

6,401‌

163‌

Gaming

&

Leisure

Properties,

REIT 

31,684‌

1,535‌

Gladstone

Land,

REIT  (3)

11,109‌

181‌

Global

Self

Storage,

REIT 

33,399‌

169‌

Lamar

Advertising,

Class

A,

REIT 

11,592‌

1,150‌

Life

Storage,

REIT 

9,900‌

1,316‌

National

Storage

Affiliates

Trust,

REIT 

10,800‌

376‌

Outfront

Media,

REIT 

15,700‌

247‌

PotlatchDeltic,

REIT 

10,059‌

532‌

Rayonier,

REIT 

24,151‌

758‌

Safehold,

REIT  (3)

8,208‌

195‌

Uniti

Group,

REIT 

35,100‌

162‌

9,025‌

Total

Real

Estate

53,269‌

UTILITIES

1.9%

Electric

Utilities

0.6%

ALLETE 

7,182‌

416‌

Avangrid  (3)

6,600‌

249‌

Genie

Energy,

Class

B 

15,702‌

222‌

Hawaiian

Electric

Industries 

14,731‌

533‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

56

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

IDACORP 

7,938‌

815‌

MGE

Energy 

7,155‌

566‌

OGE

Energy 

27,600‌

991‌

Otter

Tail 

6,850‌

541‌

PNM

Resources 

7,219‌

326‌

Portland

General

Electric 

10,300‌

482‌

Via

Renewables 

6,320‌

44‌

5,185‌

Gas

Utilities

0.5%

Chesapeake

Utilities 

3,700‌

440‌

National

Fuel

Gas 

14,292‌

734‌

New

Jersey

Resources 

13,755‌

649‌

Northwest

Natural

Holding 

4,983‌

214‌

ONE

Gas 

8,800‌

676‌

RGC

Resources 

8,179‌

164‌

Southwest

Gas

Holdings 

8,100‌

516‌

Spire 

3,810‌

242‌

UGI 

23,090‌

623‌

4,258‌

Independent

Power

&

Renewable

Electricity

Producers

0.3%

Clearway

Energy,

Class

C 

7,693‌

220‌

Montauk

Renewables  (1)

16,200‌

121‌

Ormat

Technologies 

6,200‌

499‌

Spruce

Power

Holding  (1)

153,300‌

124‌

Sunnova

Energy

International  (1)(3)

11,600‌

212‌

Vistra 

54,428‌

1,429‌

2,605‌

Multi-Utilities

0.2%

Avista 

10,890‌

428‌

Black

Hills 

8,140‌

490‌

NorthWestern 

8,500‌

482‌

Unitil 

5,119‌

260‌

1,660‌

Water

Utilities

0.3%

American

States

Water 

6,025‌

524‌

California

Water

Service

Group 

9,650‌

498‌

Essential

Utilities 

32,032‌

1,278‌

Middlesex

Water 

3,800‌

307‌

SJW

Group 

4,960‌

348‌

2,955‌

Total

Utilities

16,663‌

Total

Common

Stocks

(Cost

$596,350)

886,920‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

57

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

SHORT-TERM

INVESTMENTS

0.5%

Money

Market

Funds

0.5%

T.

Rowe

Price

Government

Reserve

Fund,

5.13%  (4)(5)

4,195,476‌

4,195‌

4,195‌

U.S.

Treasury

Obligations

0.0%

U.S.

Treasury

Bills,

5.248%,

12/14/23  (6)

350,000‌

342‌

342‌

Total

Short-Term

Investments

(Cost

$4,537)

4,537‌

SECURITIES

LENDING

COLLATERAL

4.2%

INVESTMENTS

IN

A

POOLED

ACCOUNT

THROUGH

SECURITIES

LENDING

PROGRAM

WITH

STATE

STREET

BANK

AND

TRUST

COMPANY

4.2%

Money

Market

Funds

4.2%

T.

Rowe

Price

Government

Reserve

Fund,

5.13%  (4)(5)

37,329,049‌

37,329‌

Total

Investments

in

a

Pooled

Account

through

Securities

Lending

Program

with

State

Street

Bank

and

Trust

Company

37,329‌

Total

Securities

Lending

Collateral

(Cost

$37,329)

37,329‌

Total

Investments

in

Securities

104.1%

of

Net

Assets

(Cost

$638,216)

$

928,786‌

‡

Shares/Par

and

Notional

Amount

are

denominated

in

U.S.

dollars

unless

otherwise

noted.

(1)

Non-income

producing

(2)

See

Note

2.

Level

3

in

fair

value

hierarchy.

(3)

See

Note

4

.

All

or

a

portion

of

this

security

is

on

loan

at

June

30,

2023.

(4)

Seven-day

yield

(5)

Affiliated

Companies

(6)

At

June

30,

2023,

all

or

a

portion

of

this

security

is

pledged

as

collateral

and/or

margin

deposit

to

cover

future

funding

obligations.

ADR

American

Depositary

Receipts

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

58

FUTURES

CONTRACTS

($000s)

Expiration

Date

Notional

Amount

Value

and

Unrealized

Gain

(Loss)

Long,

42

Russell

2000

E-Mini

Index

contracts

9/23

3,998

$

16‌

Long,

5

S&P

Midcap

400

E-mini

Index

contracts

9/23

1,322

34‌

Net

payments

(receipts)

of

variation

margin

to

date

(

30‌

)

Variation

margin

receivable

(payable)

on

open

futures

contracts

$

20‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

59

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,

2023.

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,

5.13%

$

—‌

$

—‌

$

92‌

++

Totals

$

—‌

#

$

—‌

$

92‌

+

Supplementary

Investment

Schedule

Affiliate

Value

12/31/22

Purchase

Cost

Sales

Cost

Value

06/30/23

T.

Rowe

Price

Government

Reserve

Fund,

5.13%

$

32,311‌

¤

¤

$

41,524‌

Total

$

41,524‌

^

#

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

$92

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

$41,524.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

June

30,

2023

(Unaudited)

Statement

of

Assets

and

Liabilities

60

($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

$638,216)

$

928,786‌

Receivable

for

shares

sold

826‌

Dividends

receivable

771‌

Receivable

for

investment

securities

sold

376‌

Variation

margin

receivable

on

futures

contracts

20‌

Other

assets

103‌

Total

assets

930,882‌

Liabilities

Obligation

to

return

securities

lending

collateral

37,329‌

Payable

for

shares

redeemed

900‌

Due

to

affiliates

80‌

Investment

management

fees

payable

64‌

Payable

to

directors

1‌

Other

liabilities

150‌

Total

liabilities

38,524‌

NET

ASSETS

$

892,358‌

Net

Assets

Consist

of:

Total

distributable

earnings

(loss)

$

310,936‌

Paid-in

capital

applicable

to

31,825,100

shares

of

$0.0001

par

value

capital

stock

outstanding;

2,000,000,000

shares

of

the

Corporation

authorized

581,422‌

NET

ASSETS

$

892,358‌

NET

ASSET

VALUE

PER

SHARE

$

28.04‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Statement

of

Operations

61

($000s)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

6

Months

Ended

6/30/23

Investment

Income

(Loss)

Income

Dividend

(net

of

foreign

taxes

of

$3)

$

4,449‌

Securities

lending

534‌

    Interest

8‌

Total

income

4,991‌

Expenses

Investment

management

384‌

Shareholder

servicing

500‌

Prospectus

and

shareholder

reports

32‌

Custody

and

accounting

100‌

Registration

21‌

Legal

and

audit

18‌

Proxy

and

annual

meeting

15‌

Directors

1‌

Miscellaneous

11‌

Waived

/

paid

by

Price

Associates

(

11‌

)

Total

expenses

1,071‌

Net

investment

income

3,920‌

Realized

and

Unrealized

Gain

/

Loss

–

Net

realized

gain

(loss)

Securities

15,781‌

Futures

96‌

Net

realized

gain

15,877‌

Change

in

net

unrealized

gain

/

loss

Securities

81,272‌

Futures

194‌

Change

in

net

unrealized

gain

/

loss

81,466‌

Net

realized

and

unrealized

gain

/

loss

97,343‌

INCREASE

IN

NET

ASSETS

FROM

OPERATIONS

$

101,263‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

(Unaudited)

Statement

of

Changes

in

Net

Assets

62

($000s)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

6

Months

Ended

6/30/23

Year

Ended

12/31/22

Increase

(Decrease)

in

Net

Assets

Operations

Net

investment

income

$

3,920‌

$

9,700‌

Net

realized

gain

15,877‌

28,094‌

Change

in

net

unrealized

gain

/

loss

81,466‌

(

357,888‌

)

Increase

(decrease)

in

net

assets

from

operations

101,263‌

(

320,094‌

)

Distributions

to

shareholders

Net

earnings

–‌

(

58,443‌

)

Capital

share

transactions

*

Shares

sold

28,048‌

91,467‌

Distributions

reinvested

–‌

53,971‌

Shares

redeemed

(

63,153‌

)

(

222,081‌

)

Decrease

in

net

assets

from

capital

share

transactions

(

35,105‌

)

(

76,643‌

)

Net

Assets

Increase

(decrease)

during

period

66,158‌

(

455,180‌

)

Beginning

of

period

826,200‌

1,281,380‌

End

of

period

$

892,358‌

$

826,200‌

*Share

information

(000s)

Shares

sold

1,053‌

3,134‌

Distributions

reinvested

–‌

2,138‌

Shares

redeemed

(

2,384‌

)

(

7,535‌

)

Decrease

in

shares

outstanding

(

1,331‌

)

(

2,263‌

)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

Unaudited

NOTES

TO

FINANCIAL

STATEMENTS

63

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

in

net

unrealized

gain/loss

from

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

64

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.

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.

New

Accounting

Guidance

 In

June

2022,

the

FASB

issued

Accounting

Standards

Update

(ASU),

ASU

2022-03,

Fair

Value

Measurement

(Topic

820)

–

Fair

Value

Measurement

of

Equity

Securities

Subject

to

Contractual

Sale

Restrictions,

which

clarifies

that

a

contractual

restriction

on

the

sale

of

an

equity

security

is

not

considered

part

of

the

unit

of

account

of

the

equity

security

and,

therefore,

is

not

considered

in

measuring

fair

value.

The

amendments

under

this

ASU

are

effective

for

fiscal

years

beginning

after

December

15,

2023;

however,

the

fund

opted

to

early

adopt,

as

permitted,

effective

December

1,

2022. Adoption

of

the

guidance

did not

have

a

material

impact

on

the fund's

financial  statements.

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

methodologies;

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

65

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

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

66

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

67

Valuation

Inputs

  The

following

table

summarizes

the

fund’s

financial

instruments,

based

on

the

inputs

used

to

determine

their

fair

values

on

June

30,

2023

(for

further

detail

by

category,

please

refer

to

the

accompanying

Portfolio

of

Investments):

NOTE

3

-

DERIVATIVE

INSTRUMENTS 

During

the

six

months ended

June

30,

2023,

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.

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

($000s)

Level

1

Level

2

Level

3

Total

Value

Assets

Common

Stocks

$

886,904‌

$

—‌

$

16‌

$

886,920‌

Short-Term

Investments

4,195‌

342‌

—‌

4,537‌

Securities

Lending

Collateral

37,329‌

—‌

—‌

37,329‌

Total

Securities

928,428‌

342‌

16‌

928,786‌

Futures

Contracts*

50‌

—‌

—‌

50‌

Total

$

928,478‌

$

342‌

$

16‌

$

928,836‌

*

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

68

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,

2023,

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,

2023,

and

the

related

location

on

the

accompanying

Statement

of

Operations

is

summarized

in

the

following

table

by

primary

underlying

risk

exposure: 

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

($000s)

Location

on

Statement

of

Assets

and

Liabilities

Fair

Value*

Assets

Equity

derivatives

Futures

$

50‌

*

Total

$

50‌

*

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

$

96‌

Total

$

96‌

Change

in

Unrealized

Gain

(Loss)

Equity

derivatives

$

194‌

Total

$

194‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

69

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,

2023,

securities

valued

at $341,000

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.

Risks

related

to

the

use

of

futures

contracts

include

possible

illiquidity

of

the

futures

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,

2023,

the

volume

of

the

fund’s

activity

in

futures,

based

on

underlying

notional

amounts,

was

generally

less

than

1%

of

net

assets.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

70

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,

2023,

the

value

of

loaned

securities

was

$35,515,000;

the

value

of

cash

collateral

and

related

investments

was

$37,329,000.

Other 

Purchases

and

sales

of

portfolio

securities

other

than

short-term securities

aggregated $37,866,000 and

$67,568,000,

respectively,

for

the

six

months ended

June

30,

2023.

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

71

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,

2023,

the

cost

of

investments

(including

derivatives,

if

any)

for

federal

income

tax

purposes

was

$641,560,000.

Net

unrealized

gain

aggregated

$287,276,000

at

period-end,

of

which $395,785,000

related

to

appreciated

investments

and $108,509,000

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.

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.

During

the

limitation

period,

Price

Associates is required

to

waive

its

management

fee

and

pay

the

fund

for

any

expenses

(excluding

interest;

expenses

related

to

borrowings,

taxes,

and

brokerage;

non-recurring,

extraordinary

expenses;

and

acquired

fund

fees

and

expenses)

that

would

otherwise

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

72

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,

2023 as

indicated

in

the

table

below.

Including

this

amount,

expenses

previously

waived/paid

by

Price

Associates

in

the

amount

of $95,000 remain

subject

to

repayment

by

the

fund

at

June

30,

2023.

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.

In

addition

the

fund

is

subject

to

a

permanent

contractual

expense

limitation,

pursuant

to

which

Price

Associates

is

required

to

waive

its

management

fee

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

class’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

class’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

during

the six

months

ended June

30,

2023.

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

Expense

limitation

0.25%

Expense

limitation

date

04/30/24

(Waived)/repaid

during

the

period

($000s)

$(11)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

73

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,

2023,

expenses

incurred

pursuant

to

these

service

agreements

were

$58,000

for

Price

Associates;

$272,000

for

T.

Rowe

Price

Services,

Inc.;

and

$35,000

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.

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

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,

2023,

the

fund

had

no

purchases

or

sales

cross

trades

with

other

funds

or

accounts

advised

by

Price

Associates.

NOTE

8

-

OTHER

MATTERS

Unpredictable

events

such

as

environmental

or

natural

disasters,

war,

terrorism,

pandemics,

outbreaks

of

infectious

diseases,

and

similar

public

health

threats

may

significantly

affect

the

economy

and

the

markets

and

issuers

in

which

the fund

invests.

Certain

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

74

Since

2020,

a

novel

strain

of

coronavirus

(COVID-19)

has

resulted

in

disruptions

to

global

business

activity

and

caused

significant

volatility

and

declines

in

global

financial

markets.

In

February

2022,

Russian

forces

entered

Ukraine

and

commenced

an

armed

conflict

leading

to

economic

sanctions

being

imposed

on

Russia

and

certain

of

its

citizens,

creating

impacts

on

Russian-related

stocks

and

debt

and

greater

volatility

in

global

markets.

In

March

2023,

the

collapse

of

some

US

regional

and

global

banks

as

well

as

overall

concerns

around

the

soundness

and

stability

of

the

global

banking

sector

has

sparked

concerns

of

a

broader

financial

crisis

impacting

the

overall

global

banking

sector.

In

certain

cases,

government

agencies

have

assumed

control

or

otherwise

intervened

in

the

operations

of

certain

banks

due

to

liquidity

and

solvency

concerns.

The

extent

of

impact

of

these

events

on

the

US

and

global

markets

is

highly

uncertain.

These

are

recent

examples

of

global

events

which

may

have

a

negative

impact

on

the

values

of

certain

portfolio

holdings

or

the

fund’s

overall

performance.

Management

is

actively

monitoring

the

risks

and

financial

impacts

arising

from

these

events.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

75

INFORMATION

ON

PROXY

VOTING

POLICIES,

PROCEDURES,

AND

RECORDS

A

description

of

the

policies

and

procedures

used

by

T.

Rowe

Price

funds

to

determine

how

to

vote

proxies

relating

to

portfolio

securities

is

available

in

each

fund’s

Statement

of

Additional

Information.

You

may

request

this

document

by

calling

1-800-225-5132

or

by

accessing

the

SEC’s

website,

sec.gov.

The

description

of

our

proxy

voting

policies

and

procedures

is

also

available

on

our

corporate

website.

To

access

it,

please

visit

the

following

Web

page:

https://www.troweprice.com/corporate/us/en/utility/policies.html

Scroll

down

to

the

section

near

the

bottom

of

the

page

that

says,

“Proxy

Voting

Guidelines.”

Click

on

the

links

in

the

shaded

box.

Each

fund’s

most

recent

annual

proxy

voting

record

is

available

on

our

website

and

through

the

SEC’s

website.

To

access

it

through

T.

Rowe

Price,

visit

the

website

location

shown

above,

and

scroll

down

to

the

section

near

the

bottom

of

the

page

that

says,

“Proxy

Voting

Records.”

Click

on

the

Proxy

Voting

Records

link

in

the

shaded

box.

RESULTS

OF

PROXY

VOTING

A

Special

Meeting

of

Shareholders

was

held

on

July

24,

2023

for

shareholders

of

record

on

April

7,

2023,

to

elect

the

following

director-nominees

to

serve

on

the

Board

of

all

Price

Funds.

The

newly

elected

Directors

took

office

effective

July

24,

2023.

The

results

of

the

voting

were

as

follows:

Teresa

Bryce

Bazemore,

Bruce

W.

Duncan,

Robert

J.

Gerrard,

Jr.,

Paul

F.

McBride

and

David

Oestreicher

continue

to

serve

as

Directors

on

the

Board

of

all

Price

Funds.

HOW

TO

OBTAIN

QUARTERLY

PORTFOLIO

HOLDINGS

The

fund

files

a

complete

schedule

of

portfolio

holdings

with

the

Securities

and

Exchange

Commission

(SEC)

for

the

first

and

third

quarters

of

each

fiscal

year

as

an

exhibit

to

its

reports

on

Form

N-PORT.

The

fund’s

reports

on

Form

N-PORT

are

available

electronically

on

the

SEC’s

website

(sec.gov).

In

addition,

most

T.

Rowe

Price

funds

disclose

their

first

and

third

fiscal

quarter-end

holdings

on

troweprice.com

.

Votes

For

Votes

Withheld

Melody

Bianchetto

410,062,298

1,655,973

Mark

J.

Parrell

409,937,671

1,709,010

Kellye

L.

Walker

410,159,459

1,646,826

Eric

L.

Veiel

407,150,354

4,595,210

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

76

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

6–7,

2023

(Meeting),

the

Board,

including

all

of

the

fund’s

independent

directors,

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

77

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,

2022. Additionally,

the

Board

reviewed

the

fund’s

relative

performance

information

as

of

September

30,

2022,

which

ranked

the

returns

of

the

fund

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,

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)

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

the

Adviser

bears

the

cost

of

research

services

for

all

client

accounts

that

it

advises,

including

the

T.

Rowe

Price

funds.

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.

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

78

The

fund’s

shareholders

have

benefited

from

economies

of

scale

through

reductions

to

the

fund’s

management

fee

and

a

restructure

from

an

all-inclusive

management

fee

to

a

fee

structure

that

provides

for

potential

future

economies

of

scale

through

a

decline

in

operating

expenses

as

the

fund

grows

in

size.

The

fund

is

also

subject

to

a

contractual

expense

limitation

that

requires

the

Adviser

to

waive

its

fees

and/or

bear

any

expenses

that

would

otherwise

cause

the

total

expense

ratio

of

the

fund

to

exceed

a

certain

percentage.

The

expense

limitation

mitigates

the

potential

for

an

increase

in

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

ongoing

investments

in

its

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

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.

However,

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

fourth

quintile

(Expense

Universe);

and

the

fund’s

total

expenses

ranked

third

out

of

five

funds

(Expense

Group)

and

in

the

third

quintile

(Expense

Universe).

APPROVAL

OF

INVESTMENT

MANAGEMENT

AGREEMENT

AND

SUBADVISORY

AGREEMENT

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

79

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

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

8/23

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 1 of this Form N-CSR.

(b) Not applicable.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable.

Item 10. 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 11. 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 12. Disclosure of Securities Lending Activities for Closed-End Management Investment Companies.

Not applicable.

Item 13. 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)	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.
(3)	Written solicitation to repurchase securities issued by closed-end companies: not applicable.
(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 Index Trust, Inc.
By	/s/ David Oestreicher
	David Oestreicher
	Principal Executive Officer
Date	August 18, 2023

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 18, 2023

By	/s/ Alan S. Dupski
	Alan S. Dupski
	Principal Financial Officer
Date	August 18, 2023