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

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED

MANAGEMENT INVESTMENT COMPANIES

Investment Company Act File Number: 811-05986

T. Rowe Price Index Trust, Inc.

(Exact name of registrant as specified in charter)

100 East Pratt Street, Baltimore, MD 21202

(Address of principal executive offices)

David Oestreicher

100 East Pratt Street, Baltimore, MD 21202

(Name and address of agent for service)

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

Date of fiscal year end:  December 31

Date of reporting period:  December 31, 2022

Item 1. Reports to Shareholders

(a) Report pursuant to Rule 30e-1

December

31,

2022

Annual

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

HIGHLIGHTS

Each

of

the

three

Equity

Market

Index

Funds

produced

negative

returns

in

2022

but

closely

tracked

their

respective

benchmarks.

Most

sectors

of

the

U.S.

stock

market

produced

negative

returns

during

the

12-month

period.

Equities

plunged

as

Russia’s

assault

on

Ukraine,

surging

commodity

prices,

elevated

inflation,

and

rising

interest

rates

weighed

heavily

on

the

economy

and

financial

markets.

Using

full

replication

and

sampling

strategies,

we

kept

the

composition

and

other

attributes

of

the

index

funds

similar

to

those

of

their

benchmarks.

The

trajectories

of

the

economy,

corporate

earnings,

and

interest

rates

are

unpredictable,

and

investor

sentiment

toward

the

broad

market

and

various

market

segments

could

change

without

warning.

Our

main

task,

however,

is

to

use

full

replication

or

sampling

strategies

so

that

the

Equity

Market

Index

Funds

are

structured

like

major

U.S.

equity

indexes

and

closely

track

their

performance.

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

Nearly

all

major

global

stock

and

bond

indexes

fell

sharply

in

2022,

as

investors

contended

with

persistently

high

inflation,

tightening

financial

conditions,

and

slowing

economic

and

corporate

earnings

growth.

Double-digit

losses

were

common

in

equity

markets

around

the

world,

and

bond

investors

also

faced

a

historically

tough

environment

amid

a

sharp

rise

in

interest

rates.

Value

shares

declined

but

outperformed

growth

stocks

by

a

considerable

margin

as

equity

investors

turned

risk

averse

and

as

rising

rates

put

downward

pressure

on

growth

stock

valuations.

Emerging

markets

stocks

generally

underperformed

shares

in

developed

markets.

Meanwhile,

the

U.S.

dollar

strengthened

versus

most

currencies

during

the

period,

which

weighed

on

returns

for

U.S.

investors

in

international

securities.

Within

the

S&P

500

Index,

energy

was

a

rare

bright

spot,

gaining

more

than

60%

as

oil

prices

jumped

in

response

to

Russia’s

invasion

of

Ukraine

and

concerns

over

commodity

supply

shortages.

Defensive

shares,

such

as

utilities,

consumer

staples,

and

health

care,

held

up

relatively

well

and

finished

the

year

with

roughly

flat

returns.

Conversely,

communication

services,

consumer

discretionary,

and

information

technology

shares

suffered

the

largest

declines.

Elevated

inflation

remained

a

leading

concern

for

investors

throughout

the

period,

although

there

were

signs

that

price

increases

were

moderating

by

year-

end.

November’s

consumer

price

index

data

showed

headline

inflation

rising

7.1%

on

a

12-month

basis,

the

lowest

level

since

December

2021

but

still

well

above

the

Federal

Reserve’s

2%

long-term

target.

In

response

to

the

high

inflation

readings,

global

central

banks

tightened

monetary

policy,

and

investors

focused

on

communications

from

central

bank

officials

on

how

high

rates

would

have

to

go.

The

Fed,

which

at

the

end

of

2021

had

forecast

that

it

would

only

need

to

raise

interest

rates

0.75

percentage

point

in

all

of

2022,

raised

its

short-term

lending

benchmark

from

near

zero

in

March

to

a

target

range

of

4.25%

to

4.50%

by

December

and

indicated

that

additional

hikes

are

likely.

Bond

yields

increased

considerably

across

the

U.S.

Treasury

yield

curve

as

the

Fed

tightened

monetary

policy,

with

the

yield

on

the

benchmark

10-year

U.S.

Treasury

note

climbing

from

1.52%

at

the

start

of

the

period

to

3.88%

at

the

end

of

the

year.

Significant

inversions

in

the

yield

curve,

which

are

often

considered

a

warning

sign

of

a

coming

recession,

occurred

during

the

period

as

shorter-maturity

Treasuries

experienced

the

largest

yield

increases.

The

T.

ROWE

PRICE

Equity

Market

Index

Funds

2

sharp

increase

in

yields

led

to

historically

weak

results

across

the

fixed

income

market,

with

the

Bloomberg

U.S.

Aggregate

Bond

Index

delivering

its

worst

year

on

record.

(Bond

prices

and

yields

move

in

opposite

directions.)

As

the

period

came

to

an

end,

the

economic

backdrop

appeared

mixed.

Although

manufacturing

gauges

have

drifted

toward

contraction

levels,

the

U.S.

jobs

market

remained

resilient,

and

corporate

and

household

balance

sheets

appeared

strong.

Meanwhile,

the

housing

market

has

weakened

amid

rising

mortgage

rates.

The

past

year

has

been

a

trying

time

for

investors

as

few

sectors

remained

untouched

by

the

broad

headwinds

that

markets

faced,

and

volatility

may

continue

in

the

near

term

as

central

banks

tighten

policy

amid

slowing

economic

growth.

However,

in

our

view,

there

continue

to

be

opportunities

for

selective

investors

focused

on

fundamentals.

Valuations

in

most

global

equity

markets

have

improved

markedly,

although

U.S.

equities

still

appear

relatively

expensive

by

historical

standards,

while

bond

yields

have

reached

some

of

the

most

attractive

levels

since

the

2008

global

financial

crisis.

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.

Thank

you

for

your

continued

confidence

in

T.

Rowe

Price.

Sincerely, 

Robert

Sharps

CEO

and

President

T.

ROWE

PRICE

Equity

Market

Index

Funds

Management’s

Discussion

of

Fund

Performance

3

EQUITY

INDEX

500 FUND 

INVESTMENT

OBJECTIVE 

The

fund

seeks

to

track

the

performance

of

a

benchmark

index

that

measures

the

investment

return

of

large-capitalization

U.S.

stocks.

FUND

COMMENTARY

How

did

the

fund

perform

in

the

past 12

months?

The

Equity

Index

500

Fund

returned

-18.28%

versus

-18.11%

for

its

benchmark,

the

S&P

500

Index.

The

fund’s

performance

tends

to

slightly

lag

that

of

the

index

due

to

operating

and

management

expenses.

(Performance

for

the

fund’s

I

Class

and

Z

Class

shares

will

vary

due

to

different

fee

structures.

Past

performance

cannot

guarantee

future

results

.)

What

factors

influenced

the

fund’s

performance?

Most

sectors

in

the

S&P

500

Index

produced

negative

returns

in

2022.

Large-

cap

U.S.

stocks

plunged

as

Russia’s

assault

on

Ukraine,

surging

commodity

prices,

elevated

inflation,

and

rising

interest

rates

weighed

heavily

on

the

economy

and

financial

markets.

By

the

summer

of

2022,

the

S&P

500

Index

and

several

other

equity

indexes

entered

“bear

market”

territory,

meaning

that

they

had

fallen

at

least

20%

from

their

recent

highs.

Within

our

portfolio,

information

technology

stocks

detracted

the

most

in

absolute

terms.

Software,

semiconductors,

and

hardware

companies

were

among

the

worst

performers

in

the

portfolio,

with

bellwethers

Microsoft,

NVIDIA,

and

Apple

being

particularly

weak.

Shares

of

these

tech

giants

fell

with

other

technology

names,

as

the

sector

was

hit

by

fears

that

supply

chain

issues

and

inflationary

pressures

would

slow

demand.

Also,

rising

interest

rates

tend

to

hurt

growth

stocks

by

reducing

the

present

value

of

their

future

profits.

(Please

refer

to

the

portfolio

of

investments

for

a

complete

list

of

holdings

and

the

amount

each

represents

in

the

portfolio.)

PERFORMANCE

COMPARISON

Total

Return

Periods

Ended

12/31/22

6

Months

12

Months

Equity

Index

500

Fund

–

.

2.20‌%

-18.28‌%

Equity

Index

500

Fund–

.

I  Class

2.29‌

-18.15‌

Equity

Index

500

Fund–

.

Z  Class

2.31‌

-18.11‌

S&P

500

Index

2.31‌

-18.11‌

T.

ROWE

PRICE

Equity

Market

Index

Funds

4

The

consumer

discretionary

sector

also

exhibited

negative

returns.

The

automobiles

segment

detracted

the

most

from

absolute

results,

as

leading

electric

automobile

maker

Tesla

tumbled

during

the

year.

The

stock

sank

amid

a

number

of

negative

data

points,

including

continued

controversy

surrounding

Chief

Executive

Officer

Elon

Musk’s

acquisition

of

Twitter,

reports

of

fatal

crashes

involving

the

company’s

Model

3

autopilot

feature,

and

concerns

that

macro

pressures

from

higher

financing

rates

and

a

weaker

consumer

could

hamper

demand

in

the

near

term.

The

internet

and

direct

marketing

segment

also

lagged.

Shares

of

Amazon.com

fell

sharply

on

a

series

of

disappointing

earnings

results,

with

the

firm

struggling

to

combat

slowing

growth

and

over-staffing

as

pandemic-driven

demand

receded.

Near

the

end

of

the

year,

the

company

projected

that

fourth-quarter

sales

would

be

well

below

analysts’

expectations.

Conversely,

energy

shares

surged

for

the

12-month

period.

Energy

companies

were

by

far

the

top

contributors

in

our

portfolio,

led

by

ExxonMobil

and

Chevron.

Many

large

oil

companies

reported

record

profits

during

the

first

quarter

of

2022,

as

many

countries

decided

to

find

alternatives

to

Russian

energy

exports,

resulting

in

higher

oil,

gasoline,

and

natural

gas

prices.

Oil

companies

ConocoPhillips,

Marathon

Petroleum,

and

Occidental

Petroleum

also

contributed

to

our

results,

while

energy

equipment

and

services

company

Schlumberger

added

value

to

a

lesser

extent.

The

health

care

sector

exhibited

mostly

flat

returns

during

the

12-month

period.

The

pharmaceuticals

segment

performed

best,

with

Merck

and

Eli

Lilly

being

the

top

performers.

Biotechnology

names

also

contributed

to

results,

with

our

position

in

AbbVie

being

particularly

strong.

Conversely,

health

care

equipment

and

supplies

companies

weighed

on

results,

with

Abbott

Laboratories

and

Medtronic

being

especially

weak.

SECTOR

DIVERSIFICATION

Periods

Ended

6/30/22

12/31/22

Information

Technology

26.6‌%

25.5‌%

Health

Care

15.1‌ 

15.8‌ 

Financials

10.8‌ 

11.5‌ 

Consumer

Discretionary

10.5‌ 

9.7‌ 

Industrials

and

Business

Services

7.9‌ 

8.9‌ 

Communication

Services

8.8‌ 

7.3‌ 

Consumer

Staples

7.0‌ 

7.1‌ 

Energy

4.3‌ 

5.2‌ 

Utilities

3.1‌ 

3.2‌ 

Materials

2.6‌ 

2.7‌ 

Real

Estate

2.9‌ 

2.7‌ 

Other

and

Reserves

0.4‌ 

0.4‌ 

Total

100.0‌%

100.0‌%

Historical

weightings

reflect

current

industry/sector

classifications.

T.

ROWE

PRICE

Equity

Market

Index

Funds

5

TOTAL

EQUITY

MARKET

INDEX FUND 

INVESTMENT

OBJECTIVE 

The

fund

seeks

to

match the

performance

of

the

entire

U.S.

stock

market.

FUND

COMMENTARY

How

did

the

fund

perform

in

the

past 12

months?

The

Total

Equity

Market

Index

Fund

returned

-19.61%

versus

-19.53%

for

its

benchmark,

the

S&P

Total

Market

Index.

Fund

performance

tends

to

slightly

lag

that

of

the

index

due

to

operating

and

management

expenses.

(

Past

performance

cannot

guarantee

future

results

.)

What

factors

influenced

the

fund’s

performance?

Within

our

portfolio,

information

technology

stocks

detracted

the

most

in

absolute

terms.

Software,

semiconductors,

and

hardware

companies

were

among

the

worst

performers

in

the

portfolio,

with

bellwethers

Microsoft,

NVIDIA,

and

Apple

being

particularly

weak.

Shares

of

these

tech

giants

fell

with

other

technology

names,

as

the

sector

was

hit

by

fears

that

supply

chain

issues

and

inflationary

pressures

would

slow

demand.

Also,

rising

interest

rates

tend

to

hurt

growth

stocks

by

reducing

the

present

value

of

their

future

profits.

(Please

refer

to

the

portfolio

of

investments

for

a

complete

list

of

holdings

and

the

amount

each

represents

in

the

portfolio.)

The

consumer

discretionary

sector

also

exhibited

negative

returns.

The

automobiles

segment

detracted

the

most

from

absolute

results,

as

leading

electric

automobile

maker

Tesla

tumbled

during

the

year.

The

stock

sank

amid

a

number

of

negative

data

points,

including

continued

controversy

surrounding

Chief

Executive

Officer

Elon

Musk’s

acquisition

of

Twitter,

reports

of

fatal

crashes

involving

the

company’s

Model

3

autopilot

feature,

and

concerns

that

macro

pressures

from

higher

financing

rates

and

a

weaker

consumer

could

hamper

demand

in

the

near

term.

The

internet

and

direct

marketing

segment

also

lagged.

Shares

of

Amazon.com

fell

sharply

on

a

series

of

disappointing

earnings

results,

with

the

firm

struggling

to

combat

slowing

growth

and

over-staffing

as

pandemic-driven

demand

receded.

Near

the

end

of

the

year,

the

company

projected

that

fourth-quarter

sales

would

be

well

below

analysts’

expectations.

PERFORMANCE

COMPARISON

Total

Return

Periods

Ended

12/31/22

6

Months

12

Months

Total

Equity

Market

Index

Fund

–

.

2.22‌%

-19.61‌%

S&P

Total

Market

Index

2.29‌

-19.53‌

T.

ROWE

PRICE

Equity

Market

Index

Funds

6

The

utilities

sector,

one

of

the

smallest

in

the

index

and

the

portfolio,

exhibited

flat

returns

during

the

12-month

period.

Utilities

stocks,

which

tend

to

have

above-average

dividend

yields,

often

behave

like

bonds

in

response

to

interest

rate

movements.

However,

during

times

of

economic

uncertainty,

investors

often

favor

utilities

because

their

businesses

tend

to

be

stable.

Within

the

sector,

multi-utility

companies

performed

worst,

with

Dominion

Energy

being

the

primary

laggard.

On

the

other

hand,

electric

utilities

companies

mildly

contributed

to

portfolio

results,

with

Constellation

Energy

being

the

top

contributor.

Conversely,

energy

shares

surged

for

the

12-month

period.

Energy

companies

were

by

far

the

top

contributors

in

our

portfolio,

led

by

ExxonMobil

and

Chevron.

Many

large

oil

companies

reported

record

profits

during

the

first

quarter

of

2022,

as

many

countries

decided

to

find

alternatives

to

Russian

energy

exports,

resulting

in

higher

oil,

gasoline,

and

natural

gas

prices.

Oil

companies

ConocoPhillips,

Marathon

Petroleum,

and

Occidental

Petroleum

also

contributed

to

our

results,

while

energy

equipment

and

services

company

Schlumberger

added

value

to

a

lesser

extent.

SECTOR

DIVERSIFICATION

Periods

Ended

6/30/22

12/31/22

Information

Technology

25.5‌%

24.3‌%

Health

Care

14.8‌ 

15.5‌ 

Financials

11.5‌ 

12.3‌ 

Consumer

Discretionary

10.5‌ 

9.8‌ 

Industrials

and

Business

Services

8.9‌ 

9.8‌ 

Communication

Services

8.1‌ 

6.8‌ 

Consumer

Staples

6.3‌ 

6.6‌ 

Energy

4.3‌ 

5.1‌ 

Real

Estate

3.6‌ 

3.2‌ 

Utilities

3.0‌ 

3.0‌ 

Materials

2.9‌ 

3.1‌ 

Other

and

Reserves

0.6‌ 

0.5‌ 

Total

100.0‌%

100.0‌%

Historical

weightings

reflect

current

industry/sector

classifications.

T.

ROWE

PRICE

Equity

Market

Index

Funds

7

EXTENDED

EQUITY

MARKET

INDEX FUND 

INVESTMENT

OBJECTIVE 

The

fund

seeks

to

track

the

performance

of

a

benchmark

index

that

measures

the

investment

return

of

small-

and

mid-capitalization

U.S.

stocks.

FUND

COMMENTARY

How

did

the

fund

perform

in

the

past 12

months?

Small-

and

mid-cap

U.S.

stocks

produced

negative

returns

in

2022.

The

Extended

Equity

Market

Index

Fund

returned

-26.00%

versus

-26.54%

for

its

benchmark,

the

S&P

Completion

Index.

It

is

unusual

for

the

fund

to

outperform

the

index;

the

fund

usually

lags

the

benchmark

slightly

due

to

operating

and

management

expenses.

(

Past

performance

cannot

guarantee

future

results

.)

What

factors

influenced

the

fund’s

performance?

Within

our

portfolio,

information

technology

(IT)

stocks

detracted

the

most

in

absolute

terms.

Software,

IT

services,

and

semiconductor

companies

were

among

the

worst

performers

in

the

portfolio,

with

Datadog,

Snowflake,

and

Marvell

Technology

being

particularly

weak.

Shares

of

these

companies

fell

with

other

technology

names,

as

the

sector

was

hit

by

fears

that

supply

chain

issues

and

inflationary

pressures

would

slow

demand.

Also,

rising

interest

rates

tend

to

hurt

growth

stocks

by

reducing

the

present

value

of

their

future

profits.

(Please

refer

to

the

portfolio

of

investments

for

a

complete

list

of

holdings

and

the

amount

each

represents

in

the

portfolio.)

The

consumer

discretionary

sector

also

exhibited

negative

returns,

as

the

specialty

retail

segment

performed

worst.

Shares

of

Carvana,

which

operates

an

online

retail

platform

for

used

cars,

declined

following

an

earnings

report

that

fell

significantly

short

of

expectations.

The

company

is

experiencing

various

headwinds,

including

pandemic-related

labor

shortages

and

severe

weather

on

the

supply

side

as

well

as

slowing

demand

amid

elevated

used

car

prices

and

rising

interest

rates.

Investors

were

also

discouraged

by

Carvana’s

withdrawal

of

forward

guidance

for

the

remainder

of

the

year.

The

hotel,

restaurant,

and

leisure

segment

also

lagged,

as

Airbnb

struggled.

PERFORMANCE

COMPARISON

Total

Return

Periods

Ended

12/31/22

6

Months

12

Months

Extended

Equity

Market

Index

Fund

–

.

2.42‌%

-26.00‌%

S&P

Completion

Index

2.16‌

-26.54‌

T.

ROWE

PRICE

Equity

Market

Index

Funds

8

The

utilities

sector,

one

of

the

smallest

in

the

index

and

the

portfolio,

exhibited

flat

returns

during

the

12-month

period.

Utilities

stocks,

which

tend

to

have

above-average

dividend

yields,

often

behave

like

bonds

in

response

to

interest

rate

movements.

However,

during

times

of

economic

uncertainty,

investors

often

favor

utilities

because

their

businesses

tend

to

be

stable.

Within

the

sector,

independent

power

and

renewable

electricity

producers

were

the

weakest

performers,

with

Sunnova

Energy

International

being

the

primary

laggard.

On

the

other

hand,

multi-utilities

companies

contributed

to

portfolio

performance,

with

Unitil

performing

best.

Conversely,

energy

shares

advanced

for

the

12-month

period.

Energy

companies

were

the

top

performers

in

our

portfolio,

led

by

Cheniere

Energy

and

Texas

Pacific

Land,

which

receives

royalties

from

oil

extracted

and

water

resources

used

by

exploration

and

production

companies

on

its

land

in

the

Permian

Basin.

Many

oil

companies

reported

strong

profits

during

the

first

quarter

of

2022,

as

many

countries

decided

to

find

alternatives

to

Russian

energy

exports,

resulting

in

higher

oil,

gasoline,

and

natural

gas

prices.

Oil

companies

EQT

and

Murphy

Oil

also

contributed

to

our

results,

while

energy

equipment

and

services

companies

TechnipFMC—a

provider

of

subsea

oil

services—and

NOV

added

value

to

a

lesser

extent. 

How

are

the

Equity

Market

Index

Funds

positioned?

The

Equity

Market

Index

Funds,

which

tend

to

closely

track

their

benchmarks,

offer

broad

exposure

to

different

sectors

of

the

U.S.

stock

market,

and

each

fund’s

sector

allocations

are

consistent

with

those

of

its

benchmark.

As

such,

changes

in

each

portfolio’s

sector

diversification

and

other

overall

characteristics

reflect

changes

in

the

composition

of

the

indexes,

rather

than

strategic

shifts

that

are

typical

of

an

actively

managed

fund.

Since

the

portfolios

SECTOR

DIVERSIFICATION

Periods

Ended

6/30/22

12/31/22

Information

Technology

19.7‌%

18.0‌%

Financials

15.9‌ 

15.8‌ 

Industrials

and

Business

Services

14.3‌ 

15.8‌ 

Health

Care

13.3‌ 

13.8‌ 

Consumer

Discretionary

10.5‌ 

11.2‌ 

Real

Estate

7.6‌ 

6.5‌ 

Energy

4.5‌ 

4.9‌ 

Materials

4.3‌ 

4.3‌ 

Communication

Services

3.8‌ 

3.8‌ 

Consumer

Staples

3.0‌ 

3.1‌ 

Utilities

2.6‌ 

2.2‌ 

Other

and

Reserves

0.5‌ 

0.6‌ 

Total

100.0‌%

100.0‌%

Historical

weightings

reflect

current

industry/sector

classifications.

T.

ROWE

PRICE

Equity

Market

Index

Funds

9

are

designed

to

track

their

indexes,

they

do

not

have

the

flexibility

to

shift

assets

toward

stocks

or

sectors

that

are

rising

or

away

from

those

that

are

declining.

The

funds’

expenses

are

generally

low,

which

allows

investors

to

retain

more

of

their

returns.

As

a

reminder,

the

Equity

Market

Index

Funds

are

designed

for

investors

who

want

to

harness

the

potential

for

long-term

capital

appreciation

from

broad

exposure

to

large-cap

U.S.

stocks,

the

entire

U.S.

stock

market,

or

small-

and

mid-cap

U.S.

stocks.

The

portfolios

could

serve

as

core

holdings

in

an

investor’s

portfolio,

as

they

offer

attributes

that

many

investors

will

find

appealing.

The

portfolios

intend

to

be

diversified

in

approximately

the

same

proportion

as

the

indexes

they

track

are

diversified.

(Diversification

cannot

assure

a

profit

or

protect

against

loss

in

a

declining

market.)

The

Equity

Index

500

Fund

uses

a

full

replication

strategy,

which

involves

investing

substantially

all

of

its

assets

in

all

of

the

stocks

in

the

S&P 500

Index.

The

fund

seeks

to

maintain

holdings

of

each

stock

in

proportion

to

its

weight

in

the

index.

The

Total

Equity

Market

Index

Fund

and

the

Extended

Equity

Market

Index

Fund

use

a

sampling

strategy,

which

involves

investing

substantially

all

of

their

assets

in

a

group

of

stocks

representative

of

the

sector

allocations,

financial

characteristics,

and

other

attributes

of

the

S&P

Total

Market

Index

and

S&P

Completion

Index,

respectively.

These

two

funds

do

not

attempt

to

fully

replicate

their

indexes

by

owning

each

of

the

stocks

in

them.

All

three

index

funds

may

occasionally

invest

in

securities

such

as

futures

and

exchange-traded

funds

so

that

they

can

accommodate

cash

flows

and

remain

fully

invested.

What

is

portfolio

management’s

outlook?

Slowing

growth,

volatile

geopolitics,

tightening

global

monetary

policies,

and

elevated

inflation

created

a

challenging

market

environment

for

investors

throughout

2022.

Continued

aggressive

action

by

the

U.S.

Federal

Reserve

has

dampened

hopes

of

softening

monetary

tightening

and

accelerated

market

fears

of

a

U.S.

recession.

Overseas

economic

conditions

remain

challenging,

too.

Recession

risks

in

Europe

have

increased

as

the

war

in

Ukraine

has

waged

on,

and

there

are

concerns

about

China’s

growth

outlook,

even

though

the

country

has

been

taking

steps

to

roll

back

its

zero-COVID

policies

and

reopen

its

economy.

T.

ROWE

PRICE

Equity

Market

Index

Funds

10

The

trajectories

of

the

economy,

corporate

earnings,

and

interest

rates

are

unpredictable,

and

investor

sentiment

toward

the

broad

market

and

various

market

segments

could

change

without

warning.

Our

main

task,

however,

is

not

to

determine

which

stocks

or

sectors

may

perform

best

in

the

period

ahead.

As

always,

our

intention

is

to

use

full

replication

or

sampling

strategies

so

that

the

Equity

Market

Index

Funds

are

structured

like

major

U.S.

equity

indexes

and

closely

track

their

performance.

The

views

expressed

reflect

the

opinions

of

T.

Rowe

Price

as

of

the

date

of

this

report

and

are

subject

to

change

based

on

changes

in

market,

economic,

or

other

conditions.

These

views

are

not

intended

to

be

a

forecast

of

future

events

and

are

no

guarantee

of

future

results.

T.

ROWE

PRICE

Equity

Market

Index

Funds

11

RISKS

OF

INVESTING

IN

THE

EQUITY

MARKET

INDEX

FUNDS

Common

stocks

generally

fluctuate

in

value

more

than

bonds

and

may

decline

significantly

over

short

time

periods.

There

is

a

chance

that

stock

prices

overall

will

decline

because

stock

markets

tend

to

move

in

cycles,

with

periods

of

rising

and

falling

prices.

The

value

of

a

stock

in

which

the

funds

invest

may

decline

due

to

general

weakness

in

the

U.S.

stock

market,

such

as

when

the

U.S.

financial

markets

decline,

or

because

of

factors

that

affect

a

particular

company

or

industry.

Although

stocks

issued

by

larger

companies

tend

to

have

less

overall

volatility

than

stocks

issued

by

smaller

companies,

larger

companies

may

not

be

able

to

attain

the

high

growth

rates

of

successful

smaller

companies,

especially

during

strong

economic

periods.

In

addition,

larger

companies

may

be

less

capable

of

responding

quickly

to

competitive

challenges

and

industry

changes

and

may

suffer

sharper

price

declines

as

a

result

of

earnings

disappointments.

Funds

that

invest

in

small

and

medium-sized

companies

could

be

more

volatile

than

funds

that

are

exposed

to

only

large

companies.

Small

and

medium-sized

companies

often

have

less

experienced

management,

narrower

product

lines,

more

limited

financial

resources,

and

less

publicly

available

information

than

larger

companies.

Smaller

companies

may

have

limited

trading

markets

and

tend

to

be

more

sensitive

to

changes

in

overall

economic

conditions.

Because

the

funds

are

passively

managed,

holdings

are

generally

not

reallocated

based

on

changes

in

market

conditions

or

the

outlook

for

a

specific

security,

industry,

or

market

sector.

As

a

result,

the

funds’

performance

may

lag

the

performance

of

actively

managed

funds.

Funds

that

use

a

sampling

strategy

(and

thus

do

not

attempt

to

fully

replicate

their

benchmark

indexes)

have

a

greater

potential

for

their

performance

to

deviate

from

that

of

their

benchmarks.)

BENCHMARK

INFORMATION

Note:

The S&P

500

Index,

S&P

Total

Market

Index,

and

S&P

Completion

Index are

products of

S&P

Dow

Jones

Indices

LLC,

a

division

of

S&P

Global,

or

its

affiliates

(“SPDJI”)

and

have

been

licensed

for

use

by

T.

Rowe

Price.

Standard

&  Poor’s

®

and

S&P

®

 are

registered

trademarks of

Standard

&

Poor’s

Financial

Services

LLC,

a

division

of

S&P

Global (“S&P”);

Dow

Jones

®

is

a

registered

trademark

of

Dow

Jones

Trademark

Holdings

LLC

(“Dow

Jones”);

T.

Rowe

Price

is

not

sponsored,

endorsed,

sold

or

promoted

by

SPDJI,

Dow

T.

ROWE

PRICE

Equity

Market

Index

Funds

12

Jones,

S&P,

or

their

respective

affiliates,

and

none

of

such

parties

make

any

representation

regarding

the

advisability

of

investing

in

such

product(s)

nor

do

they

have

any

liability

for

any

errors,

omissions,

or

interruptions

of

the

S&P

500

Index,

S&P

Total

Market

Index,

and

S&P

Completion

Index.

PORTFOLIO

HIGHLIGHTS

TWENTY-FIVE

LARGEST

HOLDINGS

Equity

Index

500

Fund

Percent

of

Net

Assets

12/31/22

Apple

6.0‌%

Microsoft

5.5‌ 

Alphabet

3.1‌ 

Amazon.com

2.3‌ 

Berkshire

Hathaway

1.7‌ 

UnitedHealth

Group

1.5‌

Johnson

&

Johnson

1.4‌

Exxon

Mobil

1.4‌

JPMorgan

Chase

1.2‌

NVIDIA

1.1‌

Procter

&

Gamble

1.1‌

Visa

1.1‌

Tesla

1.0‌

Home

Depot

1.0‌

Chevron

1.0‌

Mastercard

0.9‌

Eli

Lilly

0.9‌

Pfizer

0.9‌

AbbVie

0.9‌

Merck

0.9‌

Meta

Platforms

0.8‌

PepsiCo

0.8‌

Coca-Cola

0.8‌

Bank

of

America

0.7‌

Broadcom

0.7‌

Total

38.7‌%

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.

BENCHMARK

INFORMATION

(continued)

T.

ROWE

PRICE

Equity

Market

Index

Funds

13

PORTFOLIO

HIGHLIGHTS

TWENTY-FIVE

LARGEST

HOLDINGS

Total

Equity

Market

Index

Fund

Percent

of

Net

Assets

12/31/22

Apple

5.1‌%

Microsoft

4.7‌ 

Alphabet

2.7‌ 

Amazon.com

2.0‌ 

Berkshire

Hathaway

1.4‌ 

UnitedHealth

Group

1.3‌

Johnson

&

Johnson

1.2‌

Exxon

Mobil

1.2‌

JPMorgan

Chase

1.0‌

NVIDIA

1.0‌

Visa

0.9‌

Procter

&

Gamble

0.9‌

Home

Depot

0.9‌

Tesla

0.9‌

Chevron

0.9‌

Mastercard

0.8‌

AbbVie

0.8‌

Eli

Lilly

0.8‌

Meta

Platforms

0.7‌

Pfizer

0.7‌

Merck

0.7‌

Coca-Cola

0.7‌

PepsiCo

0.7‌

Bank

of

America

0.6‌

Broadcom

0.6‌

Total

33.2‌%

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

14

PORTFOLIO

HIGHLIGHTS

TWENTY-FIVE

LARGEST

HOLDINGS

Extended

Equity

Market

Index

Fund

Percent

of

Net

Assets

12/31/22

Blackstone

0.9‌%

Uber

Technologies

0.9‌ 

Palo

Alto

Networks

0.7‌ 

Snowflake

0.7‌ 

Lululemon

Athletica

0.7‌ 

Cheniere

Energy

0.6‌

Workday

0.6‌

Airbnb

0.6‌

Marvell

Technology

0.6‌

Block

0.6‌

Alnylam

Pharmaceuticals

0.5‌

Apollo

Global

Management

0.5‌

KKR

0.5‌

Horizon

Therapeutics

0.5‌

Ferguson

0.5‌

VMware

0.4‌

Crowdstrike

Holdings

0.4‌

Veeva

Systems

0.4‌

Insulet

0.4‌

Trade

Desk

0.4‌

Atlassian

0.3‌

Sun

Communities

0.3‌

BioMarin

Pharmaceutical

0.3‌

Datadog

0.3‌

Markel

0.3‌

Total

12.9‌%

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

15

GROWTH

OF

$10,000 

This

chart

shows

the

value

of

a

hypothetical

$10,000

investment

in

the

fund

over

the

past

10

fiscal

year

periods

or

since

inception

(for funds

lacking

10-year

records).

The

result

is

compared

with

benchmarks,

which

include

a

broad-based

market

index

and

may

also

include

a

peer

group

average

or

index.

Market

indexes

do

not

include

expenses,

which

are

deducted

from

fund

returns

as

well

as

mutual fund

averages

and

indexes. 

EQUITY

INDEX

500

FUND

Note:

Performance

for

the I

and

Z Class

shares

will

vary

due

to

their

differing

fee

structures.

See

the

Average

Annual

Compound

Total

Return

table. 

T.

ROWE

PRICE

Equity

Market

Index

Funds

16

AVERAGE

ANNUAL

COMPOUND

TOTAL

RETURN

Periods

Ended

12/31/22

1

Year

5

Years

10

Years

Since

Inception

Inception

Date

Equity

Index

500

Fund

–

.

-18.28‌%

9.22‌%

12.32‌%

–‌

–

Equity

Index

500

Fund–

.

I  Class

-18.15‌

9.36‌

–‌

11.37‌%

8/28/15

Equity

Index

500

Fund–

.

Z  Class

-18.11‌

–‌

–‌

20.46‌

3/16/20

The

fund’s

performance

information

represents

only

past

performance

and

is

not

necessarily

an

indication

of

future

results.

Current

performance

may

be

lower

or

higher

than

the

performance

data

cited.

Share

price,

principal

value,

and

return

will

vary,

and

you

may

have

a

gain

or

loss

when

you

sell

your

shares.

For

the

most

recent

month-end

performance,

please

visit

our

website

(troweprice.

com)

or

contact

a

T.

Rowe

Price

representative

at

1

-

800

-

225

-

5132

or,

for

0.02

I

and

0.03

Z

Class

shares,

1-800-638-8790.

This

table

shows

how

the

fund

would

have

performed

each

year

if

its

actual

(or

cumulative)

returns

had

been

earned

at

a

constant

rate.

Average

annual

total

return

figures

include

changes

in

principal

value,

reinvested

dividends,

and

capital

gain

distributions.

Returns

do

not

reflect

taxes

that

the

shareholder

may

pay

on

fund

distributions

or

the

redemption

of

fund

shares.

When

assessing

performance,

investors

should

consider

both

short-

and

long-term

returns.

T.

ROWE

PRICE

Equity

Market

Index

Funds

17

GROWTH

OF

$10,000 

This

chart

shows

the

value

of

a

hypothetical

$10,000

investment

in

the

fund

over

the

past

10

fiscal

year

periods

or

since

inception

(for funds

lacking

10-year

records).

The

result

is

compared

with

benchmarks,

which

include

a

broad-based

market

index

and

may

also

include

a

peer

group

average

or

index.

Market

indexes

do

not

include

expenses,

which

are

deducted

from

fund

returns

as

well

as

mutual fund

averages

and

indexes. 

TOTAL

EQUITY

MARKET

INDEX

FUND

AVERAGE

ANNUAL

COMPOUND

TOTAL

RETURN

Periods

Ended

12/31/22

1

Year

5

Years

10

Years

Total

Equity

Market

Index

Fund

–

.

-19.61‌%

8.31‌%

11.82‌%

The

fund’s

performance

information

represents

only

past

performance

and

is

not

necessarily

an

indication

of

future

results.

Current

performance

may

be

lower

or

higher

than

the

performance

data

cited.

Share

price,

principal

value,

and

return

will

vary,

and

you

may

have

a

gain

or

loss

when

you

sell

your

shares.

For

the

most

recent

month-end

performance,

please

visit

our

website

(troweprice.com)

or

contact

a

T.

Rowe

Price

representative

at

1-800-225-5132.

This

table

shows

how

the

fund

would

have

performed

each

year

if

its

actual

(or

cumulative)

returns

for

the

periods

shown

had

been

earned

at

a

constant

rate.

Average

annual

total

return

figures

include

changes

in

principal

value,

reinvested

dividends,

and

capital

gain

distributions.

Returns

do

not

reflect

taxes

that

the

shareholder

may

pay

on

fund

distributions

or

the

redemption

of

fund

shares.

When

assessing

performance,

investors

should

consider

both

short-

and

long-term

returns.

T.

ROWE

PRICE

Equity

Market

Index

Funds

18

GROWTH

OF

$10,000 

This

chart

shows

the

value

of

a

hypothetical

$10,000

investment

in

the

fund

over

the

past

10

fiscal

year

periods

or

since

inception

(for funds

lacking

10-year

records).

The

result

is

compared

with

benchmarks,

which

include

a

broad-based

market

index

and

may

also

include

a

peer

group

average

or

index.

Market

indexes

do

not

include

expenses,

which

are

deducted

from

fund

returns

as

well

as

mutual fund

averages

and

indexes. 

EXTENDED

EQUITY

MARKET

INDEX

FUND

AVERAGE

ANNUAL

COMPOUND

TOTAL

RETURN

Periods

Ended

12/31/22

1

Year

5

Years

10

Years

Extended

Equity

Market

Index

Fund

–

.

-26.00‌%

4.63‌%

9.46‌%

The

fund’s

performance

information

represents

only

past

performance

and

is

not

necessarily

an

indication

of

future

results.

Current

performance

may

be

lower

or

higher

than

the

performance

data

cited.

Share

price,

principal

value,

and

return

will

vary,

and

you

may

have

a

gain

or

loss

when

you

sell

your

shares.

For

the

most

recent

month-end

performance,

please

visit

our

website

(troweprice.com)

or

contact

a

T.

Rowe

Price

representative

at

1-800-225-5132.

This

table

shows

how

the

fund

would

have

performed

each

year

if

its

actual

(or

cumulative)

returns

for

the

periods

shown

had

been

earned

at

a

constant

rate.

Average

annual

total

return

figures

include

changes

in

principal

value,

reinvested

dividends,

and

capital

gain

distributions.

Returns

do

not

reflect

taxes

that

the

shareholder

may

pay

on

fund

distributions

or

the

redemption

of

fund

shares.

When

assessing

performance,

investors

should

consider

both

short-

and

long-term

returns.

T.

ROWE

PRICE

Equity

Market

Index

Funds

19

EXPENSE

RATIOS

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.

Equity

Index

500

Fund

0.15‌%

Equity

Index

500

Fund–I

Class

0.09‌ 

Equity

Index

500

Fund–Z

Class

0.05‌ 

Total

Equity

Market

Index

Fund

0.20‌ 

Extended

Equity

Market

Index

Fund

0.23‌ 

The

expense

ratios

shown

are

as

of

the

funds’

most

recent

prospectus.

These

numbers

may

vary

from

the

expense

ratios

shown

elsewhere

in

this

report

because

they

are

based

on

a

different

time

period

and,

if

applicable,

include

acquired

fund

fees

and

expenses

but

do

not

include

fee

or

expense

waivers.

T.

ROWE

PRICE

Equity

Market

Index

Funds

20

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.

EQUITY

INDEX

500

FUND

Beginning

Account

Value

7/1/22

Ending

Account

Value

12/31/22

Expenses

Paid

During

Period*

7/1/22

to

12/31/22

Investor

Class

Actual

$1,000.00

$1,022.00

$1.07

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,024.15

  1.07

I

Class

Actual

  1,000.00

  1,022.90

  0.25

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,024.95

  0.26

Z

Class

Actual

  1,000.00

  1,023.10

  0.00

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,025.21

  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

(184),

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

0.21%,

the

2

I Class

was

0.05%,

and

the

3

Z Class

was

0.00%.

FUND

EXPENSE

EXAMPLE

(CONTINUED)

T.

ROWE

PRICE

Equity

Market

Index

Funds

21

TOTAL

EQUITY

MARKET

INDEX

FUND

Beginning

Account

Value

7/1/22

Ending

Account

Value

12/31/22

Expenses

Paid

During

Period*

7/1/22

to

12/31/22

Actual

$1,000.00

$1,022.20

$1.02

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,024.20

  1.02

*

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

(184),

and

divided

by

the

days

in

the

year

(365)

to

reflect

the

half-year

period.

EXTENDED

EQUITY

MARKET

INDEX

FUND

Beginning

Account

Value

7/1/22

Ending

Account

Value

12/31/22

Expenses

Paid

During

Period*

7/1/22

to

12/31/22

Actual

$1,000.00

$1,024.20

$1.28

Hypothetical

(assumes

5%

return

before

expenses)

 1,000.00

  1,023.95

  1.28

*

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

(184),

and

divided

by

the

days

in

the

year

(365)

to

reflect

the

half-year

period.

FUND

EXPENSE

EXAMPLE

(CONTINUED)

T.

Rowe

Price

Investment

Services,

Inc.

|

100

East

Pratt

Street

|

Baltimore,

MD

21202-1009

You

have

many

investment

goals.

Explore

products

and

services

that

can

help

you

achieve

them.

Whether

you

want

to

put

away

more

money

for

retirement,

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a

child’s

education,

or

for

other

priorities,

we

have

solutions

for

you.

See

how

we

can

help

you

accomplish

the

investment

goals

that

are

important

to

you.

RETIREMENT

IRAs:

Traditional,

Roth,

Rollover/Transfer,

or

Brokerage

Small

Business

Plans

help

minimize

taxes,

maximize

savings

T.

Rowe

Price

®

ActivePlus

Portfolios

1

for

online

investing

powered

by

experts

GENERAL

INVESTING

Individual

or

Joint

Tenant

Brokerage

2

offers

access

to

stocks,

ETFs,

bonds,

and

more

Gifts

and

transfers

to

a

child

(UGMA/UTMAs)

Trust

Transfer

on

Death

COLLEGE

SAVINGS

T.

Rowe

Price-managed

529

plans

offer

tax-

advantaged

solutions

for

families

saving

money

for

college

tuition

and

education-

related

expenses

Visit

troweprice.com/broadrange

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.

All

mutual

funds

are

subject

to

market

risk,

including

possible

loss

of

principal.

Investing

internationally

involves

special

risks

including

economic

and

political

uncertainty

and

currency

fluctuation.

1

The

T.

Rowe

Price

®

ActivePlus

Portfolios

is

a

discretionary

investment

management

program

provided

by

T.

Rowe

Price

Advisory

Services,

Inc.,

a

registered

investment

adviser

under

the

Investment

Advisers

Act

of

1940.

Brokerage

services

are

provided

by

T.

Rowe

Price

Investment

Services,

Inc.,

member

FINRA/SIPC.

Brokerage

accounts

are

carried

by

Pershing

LLC,

a

BNY

Mellon

Company,

member

NYSE/FINRA/SIPC.

T.

Rowe

Price

Advisory

Services,

Inc.,

and

T.

Rowe

Price

Investment

Services,

Inc.,

are

affiliated

companies.

2

Brokerage

services

are

provided

by

T.

Rowe

Price

Investment

Services,

Inc.,

member

FINRA/SIPC.

Brokerage

accounts

are

carried

by

Pershing

LLC,

a

BNY

Mellon

Company,

member

NYSE/FINRA/SIPC.

202302-2582494

C50-050

02/23

Highlights

and

Market

Commentary

Management’s

Discussion

of

Fund

Performance

Performance

and

Expenses

Financial

Highlights

Portfolio

of

Investments

Financial

Statements

and

Notes

Additional

Fund

Information

December

31,

2022

Annual

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

Financial

Highlights

24

For

a

share

outstanding

throughout

each

period

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

..

Year

..

..

Ended

.

12/31/22

12/31/21

12/31/20

12/31/19

12/31/18

NET

ASSET

VALUE

Beginning

of

period

$

36.18‌

$

37.12‌

$

29.25‌

$

23.98‌

$

28.20‌

Investment

activities

Net

investment

income

(1)(2)

0.29‌

0.27‌

0.24‌

0.32‌

0.34‌

Net

realized

and

unrealized

gain/

loss

(9.67‌)

4.17‌

8.74‌

6.30‌

(2.96‌)

Total

from

investment

activities

(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

$

24.92‌

$

36.18‌

$

37.12‌

$

29.25‌

$

23.98‌

Ratios/Supplemental

Data

Total

return

(2)(3)

(26.00‌)%

12.31‌%

30.82‌%

27.70‌%

(9.66‌)%

Ratios

to

average

net

assets:

(2)

Gross

expenses

before

waivers/

payments

by

Price

Associates

0.26‌%

0.30‌%

0.35‌%

0.35‌%

0.35‌%

Net

expenses

after

waivers/

payments

by

Price

Associates

0.25‌%

0.30‌%

0.35‌%

0.35‌%

0.35‌%

Net

investment

income

1.01‌%

0.66‌%

0.83‌%

1.13‌%

1.17‌%

Portfolio

turnover

rate

13.7‌%

36.7‌%

35.9‌%

17.4‌%

20.9‌%

Net

assets,

end

of

period

(in

thousands)

$826,200

$1,281,380

$1,161,458

$938,905

$758,328

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.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

December

31,

2022

25

Portfolio

of

Investments

‡

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

COMMON

STOCKS

99.4%

COMMUNICATION

SERVICES

3.8%

Diversified

Telecommunication

Services

0.5%

AST

SpaceMobile  (1)

13,000‌

63‌

Bandwidth,

Class

A  (1)

3,081‌

71‌

Cogent

Communications

Holdings 

6,500‌

371‌

EchoStar,

Class

A  (1)

7,715‌

129‌

Frontier

Communications

Parent  (1)

21,553‌

549‌

Globalstar  (1)

116,700‌

155‌

IDT,

Class

B  (1)

8,942‌

252‌

Iridium

Communications  (1)

18,318‌

941‌

Liberty

Global,

Class

A  (1)

24,334‌

460‌

Liberty

Global,

Class

C  (1)

42,928‌

834‌

Liberty

Latin

America,

Class

C  (1)

11,146‌

85‌

3,910‌

Entertainment

1.0%

AMC

Entertainment

Holdings,

Class

A  (1)(2)

79,800‌

325‌

Chicken

Soup

For

The

Soul

Entertainment  (1)(2)

18,800‌

96‌

Cinemark

Holdings  (1)

18,612‌

161‌

Endeavor

Group

Holdings,

Class

A  (1)

34,564‌

779‌

Genius

Brands

International  (1)(2)

135,100‌

63‌

Liberty

Media-Liberty

Formula

One,

Class

A  (1)

6,187‌

331‌

Liberty

Media-Liberty

Formula

One,

Class

C  (1)

30,788‌

1,841‌

Lions

Gate

Entertainment,

Class

B  (1)

32,185‌

175‌

Madison

Square

Garden

Entertainment  (1)

6,783‌

305‌

Madison

Square

Garden

Sports 

2,521‌

462‌

Playtika

Holding  (1)

20,600‌

175‌

ROBLOX,

Class

A  (1)

50,859‌

1,447‌

Roku  (1)

13,914‌

566‌

Skillz  (1)

81,048‌

41‌

Warner

Music

Group,

Class

A 

22,857‌

801‌

World

Wrestling

Entertainment,

Class

A 

6,000‌

411‌

7,979‌

Interactive

Media

&

Services

0.9%

Angi (1)(2)

34,000‌

80‌

Bumble,

Class

A  (1)

13,400‌

282‌

Cargurus  (1)

19,100‌

267‌

Cars.com  (1)

9,920‌

137‌

Eventbrite,

Class

A  (1)(2)

17,300‌

101‌

fuboTV  (1)

10,700‌

19‌

IAC  (1)

12,730‌

565‌

MediaAlpha,

Class

A  (1)

10,100‌

100‌

Pinterest,

Class

A  (1)

75,491‌

1,833‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

26

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Shutterstock 

2,800‌

148‌

Snap,

Class

A  (1)

145,802‌

1,305‌

TripAdvisor  (1)

12,900‌

232‌

TrueCar  (1)

55,425‌

139‌

Vimeo  (1)

58,114‌

199‌

Yelp  (1)

11,600‌

317‌

Ziff

Davis  (1)

7,000‌

554‌

ZoomInfo

Technologies  (1)

44,492‌

1,340‌

7,618‌

Media

1.3%

Altice

USA,

Class

A  (1)

30,500‌

140‌

Cable

One 

335‌

238‌

Cardlytics  (1)(2)

10,634‌

61‌

Clear

Channel

Outdoor

Holdings  (1)(2)

123,500‌

130‌

EW

Scripps,

Class

A  (1)

15,345‌

202‌

Gray

Television 

17,400‌

195‌

iHeartMedia,

Class

A  (1)

19,700‌

121‌

John

Wiley

&

Sons,

Class

A 

7,370‌

295‌

Liberty

Broadband,

Class

A  (1)

1,826‌

139‌

Liberty

Broadband,

Class

C  (1)

14,216‌

1,084‌

Liberty

Media-Liberty

SiriusXM,

Class

A  (1)

8,600‌

338‌

Liberty

Media-Liberty

SiriusXM,

Class

C  (1)

21,317‌

834‌

Magnite  (1)

17,700‌

187‌

New

York

Times,

Class

A 

17,200‌

558‌

Nexstar

Media

Group,

Class

A 

5,197‌

910‌

PubMatic,

Class

A  (1)

10,300‌

132‌

Scholastic 

8,858‌

350‌

Sinclair

Broadcast

Group,

Class

A 

11,410‌

177‌

Sirius

XM

Holdings 

116,587‌

681‌

TechTarget  (1)

3,100‌

137‌

TEGNA 

33,210‌

704‌

Trade

Desk,

Class

A  (1)

67,300‌

3,017‌

10,630‌

Wireless

Telecommunication

Services

0.1%

Gogo (1)

13,463‌

199‌

Shenandoah

Telecommunications 

12,721‌

202‌

Telephone

&

Data

Systems 

14,262‌

150‌

United

States

Cellular  (1)

1,893‌

39‌

590‌

Total

Communication

Services

30,727‌

CONSUMER

DISCRETIONARY

11.2%

Auto

Components

0.9%

Adient (1)

14,100‌

489‌

Autoliv 

12,665‌

970‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

27

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Dana 

26,600‌

402‌

Dorman

Products  (1)

4,800‌

388‌

Fox

Factory

Holding  (1)

7,200‌

657‌

Gentex 

25,720‌

701‌

Gentherm  (1)

6,000‌

392‌

Goodyear

Tire

&

Rubber  (1)

44,235‌

449‌

LCI

Industries 

3,900‌

361‌

Lear 

7,000‌

868‌

Luminar

Technologies  (1)(2)

29,600‌

147‌

Mobileye

Global,

Class

A  (1)

8,311‌

291‌

Motorcar

Parts

of

America  (1)

11,300‌

134‌

Patrick

Industries 

4,000‌

242‌

QuantumScape  (1)(2)

18,762‌

106‌

Spruce

Power

Holding  (1)(2)

153,300‌

141‌

Standard

Motor

Products 

7,750‌

270‌

Stoneridge  (1)

9,536‌

206‌

Superior

Industries

International  (1)

15,200‌

64‌

Visteon  (1)

4,300‌

563‌

7,841‌

Automobiles

0.5%

Canoo (1)(2)

29,700‌

36‌

Faraday

Future

Intelligent

Electric  (1)

65,000‌

19‌

Fisker  (1)(2)

34,200‌

249‌

Harley-Davidson 

19,116‌

795‌

Lucid

Group  (1)(2)

53,739‌

367‌

Rivian

Automotive,

Class

A  (1)

75,129‌

1,385‌

Thor

Industries  (2)

8,900‌

672‌

Winnebago

Industries 

6,520‌

343‌

3,866‌

Distributors

0.0%

Funko,

Class

A  (1)(2)

6,800‌

74‌

74‌

Diversified

Consumer

Services

0.8%

2U (1)

26,600‌

167‌

ADT  (2)

22,184‌

201‌

Adtalem

Global

Education  (1)

6,300‌

224‌

Bright

Horizons

Family

Solutions  (1)

11,316‌

714‌

Carriage

Services 

6,600‌

182‌

Chegg  (1)

12,100‌

306‌

Clear

Secure,

Class

A 

10,657‌

292‌

Coursera  (1)

17,600‌

208‌

Duolingo  (1)

3,683‌

262‌

Frontdoor  (1)

14,450‌

300‌

Graham

Holdings,

Class

B 

141‌

85‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

28

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Grand

Canyon

Education  (1)

5,609‌

593‌

H&R

Block 

25,613‌

935‌

Laureate

Education,

Class

A 

23,200‌

223‌

Service

Corp

International 

23,231‌

1,606‌

Strategic

Education 

6,125‌

480‌

Stride  (1)

6,000‌

188‌

WW

International  (1)

19,100‌

74‌

7,040‌

Hotels,

Restaurants

&

Leisure

2.8%

Airbnb,

Class

A  (1)

55,842‌

4,775‌

Aramark 

32,900‌

1,360‌

Bally's  (1)

11,600‌

225‌

BJ's

Restaurants  (1)

4,933‌

130‌

Bloomin'

Brands 

11,900‌

239‌

Boyd

Gaming 

11,700‌

638‌

Brinker

International  (1)

9,779‌

312‌

Canterbury

Park

Holding 

6,213‌

194‌

Cheesecake

Factory  (2)

5,840‌

185‌

Choice

Hotels

International 

4,000‌

451‌

Churchill

Downs 

5,200‌

1,099‌

Chuy's

Holdings  (1)

6,906‌

196‌

Cracker

Barrel

Old

Country

Store 

1,500‌

142‌

Dave

&

Buster's

Entertainment  (1)

6,800‌

241‌

Denny's  (1)

23,700‌

218‌

Dine

Brands

Global 

5,000‌

323‌

DraftKings,

Class

A  (1)(2)

69,689‌

794‌

Dutch

Bros,

Class

A  (1)(2)

3,300‌

93‌

Everi

Holdings  (1)

20,600‌

296‌

Hilton

Grand

Vacations  (1)

14,910‌

575‌

Hyatt

Hotels,

Class

A  (1)

5,600‌

507‌

Jack

in

the

Box 

4,600‌

314‌

Light

&

Wonder  (1)

10,530‌

617‌

Marriott

Vacations

Worldwide 

6,490‌

874‌

Papa

John's

International 

5,040‌

415‌

Penn

Entertainment  (1)

22,162‌

658‌

Planet

Fitness,

Class

A  (1)

13,226‌

1,042‌

Red

Robin

Gourmet

Burgers  (1)(2)

18,300‌

102‌

Red

Rock

Resorts,

Class

A  (2)

9,700‌

388‌

Rush

Street

Interactive  (1)

24,200‌

87‌

SeaWorld

Entertainment  (1)

4,767‌

255‌

Shake

Shack,

Class

A  (1)

4,200‌

174‌

Six

Flags

Entertainment  (1)

9,800‌

228‌

Texas

Roadhouse 

9,400‌

855‌

Travel

+

Leisure 

4,700‌

171‌

Vail

Resorts 

5,800‌

1,382‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

29

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Wendy's 

33,140‌

750‌

Wingstop 

5,400‌

743‌

Wyndham

Hotels

&

Resorts 

11,840‌

844‌

22,892‌

Household

Durables

1.0%

Cavco

Industries  (1)

900‌

204‌

Flexsteel

Industries 

5,600‌

86‌

GoPro,

Class

A  (1)

25,500‌

127‌

Helen

of

Troy  (1)

3,300‌

366‌

Hovnanian

Enterprises,

Class

A  (1)

1,684‌

71‌

Installed

Building

Products 

4,100‌

351‌

iRobot  (1)

4,900‌

236‌

KB

Home 

15,000‌

478‌

La-Z-Boy 

9,950‌

227‌

Leggett

&

Platt 

11,147‌

359‌

LGI

Homes  (1)

3,937‌

364‌

Lovesac  (1)(2)

6,700‌

147‌

M/I

Homes  (1)

5,670‌

262‌

MDC

Holdings 

4,962‌

157‌

Meritage

Homes  (1)

6,800‌

627‌

Skyline

Champion  (1)

8,500‌

438‌

Sonos  (1)

28,300‌

478‌

Taylor

Morrison

Home  (1)

17,000‌

516‌

Tempur

Sealy

International 

26,000‌

893‌

Toll

Brothers 

13,920‌

695‌

TopBuild  (1)

5,400‌

845‌

Tri

Pointe

Homes  (1)

22,800‌

424‌

Tupperware

Brands  (1)

11,420‌

47‌

Universal

Electronics  (1)

7,300‌

152‌

Vuzix  (1)(2)

26,600‌

97‌

8,647‌

Internet

&

Direct

Marketing

Retail

0.5%

1-800-Flowers.com,

Class

A  (1)

13,368‌

128‌

CarParts.com  (1)

36,800‌

230‌

Chewy,

Class

A  (1)(2)

8,841‌

328‌

DoorDash,

Class

A  (1)

35,859‌

1,751‌

Groupon  (1)(2)

6,700‌

57‌

Overstock.com  (1)

8,200‌

159‌

PetMed

Express  (2)

7,600‌

134‌

Poshmark,

Class

A  (1)

11,100‌

198‌

Qurate

Retail,

Series

A  (1)

80,200‌

131‌

RealReal  (1)(2)

51,100‌

64‌

Revolve

Group  (1)(2)

9,700‌

216‌

Stitch

Fix,

Class

A  (1)

36,200‌

113‌

Wayfair,

Class

A  (1)

11,600‌

381‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

30

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Xometry,

Class

A  (1)

700‌

23‌

3,913‌

Leisure

Products

0.5%

Acushnet

Holdings 

5,075‌

215‌

Brunswick 

10,000‌

721‌

Malibu

Boats,

Class

A  (1)

4,300‌

229‌

Marine

Products 

8,600‌

101‌

Mattel  (1)

62,139‌

1,109‌

Peloton

Interactive,

Class

A  (1)

51,857‌

412‌

Polaris 

8,440‌

852‌

Topgolf

Callaway

Brands  (1)

17,500‌

346‌

YETI

Holdings  (1)

13,500‌

558‌

4,543‌

Multiline

Retail

0.3%

Big

Lots  (2)

10,000‌

147‌

Dillard's,

Class

A  (2)

500‌

162‌

Franchise

Group  (2)

5,600‌

133‌

Kohl's 

18,800‌

475‌

Macy's 

39,300‌

812‌

Nordstrom  (2)

18,800‌

303‌

Ollie's

Bargain

Outlet

Holdings  (1)

9,500‌

445‌

2,477‌

Specialty

Retail

2.3%

Aaron's 

9,468‌

113‌

Abercrombie

&

Fitch,

Class

A  (1)

14,200‌

325‌

Academy

Sports

&

Outdoors 

8,600‌

452‌

American

Eagle

Outfitters 

16,580‌

231‌

Asbury

Automotive

Group  (1)

3,140‌

563‌

AutoNation  (1)

5,700‌

612‌

Boot

Barn

Holdings  (1)

5,300‌

331‌

Burlington

Stores  (1)

10,444‌

2,118‌

Caleres 

6,430‌

143‌

Conn's  (1)

10,100‌

69‌

Dick's

Sporting

Goods 

8,300‌

998‌

Express  (1)(2)

60,000‌

61‌

Five

Below  (1)

8,300‌

1,468‌

Floor

&

Decor

Holdings,

Class

A  (1)

18,694‌

1,302‌

Foot

Locker 

12,803‌

484‌

GameStop,

Class

A  (1)(2)

35,204‌

650‌

Gap  (2)

31,100‌

351‌

Genesco  (1)

5,100‌

235‌

Group

1

Automotive 

2,800‌

505‌

Guess? 

8,920‌

185‌

Hibbett 

3,800‌

259‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

31

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Leslie's  (1)(2)

24,100‌

294‌

Lithia

Motors 

3,500‌

717‌

Monro 

7,100‌

321‌

Murphy

USA 

3,600‌

1,006‌

National

Vision

Holdings  (1)

9,922‌

385‌

ODP  (1)

7,757‌

353‌

Penske

Automotive

Group 

2,308‌

265‌

Petco

Health

&

Wellness  (1)(2)

22,800‌

216‌

Rent-A-Center 

7,450‌

168‌

RH  (1)(2)

2,600‌

695‌

Sally

Beauty

Holdings  (1)

12,000‌

150‌

Signet

Jewelers 

7,900‌

537‌

Sleep

Number  (1)

6,300‌

164‌

Sonic

Automotive,

Class

A 

5,003‌

247‌

Sportsman's

Warehouse

Holdings  (1)

9,400‌

88‌

Urban

Outfitters  (1)

2,700‌

64‌

Victoria's

Secret  (1)

14,100‌

505‌

Vroom  (1)(2)

45,600‌

47‌

Williams-Sonoma 

9,567‌

1,099‌

18,776‌

Textiles,

Apparel

&

Luxury

Goods

1.6%

Capri

Holdings  (1)

13,905‌

797‌

Carter's 

5,900‌

440‌

Columbia

Sportswear 

3,462‌

303‌

Crocs  (1)

8,200‌

889‌

Deckers

Outdoor  (1)

3,658‌

1,460‌

Fossil

Group  (1)

19,900‌

86‌

G-III

Apparel

Group  (1)

9,000‌

123‌

Hanesbrands 

37,199‌

237‌

Kontoor

Brands  (2)

8,300‌

332‌

Lululemon

Athletica  (1)

16,749‌

5,366‌

Movado

Group 

6,705‌

216‌

Oxford

Industries 

2,200‌

205‌

PVH 

5,705‌

403‌

Skechers

USA,

Class

A  (1)

21,900‌

919‌

Steven

Madden 

12,050‌

385‌

Superior

Group 

14,300‌

144‌

Under

Armour,

Class

A  (1)

18,600‌

189‌

Under

Armour,

Class

C  (1)

20,100‌

179‌

Vera

Bradley  (1)

24,500‌

111‌

Wolverine

World

Wide 

9,300‌

102‌

12,886‌

Total

Consumer

Discretionary

92,955‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

32

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

CONSUMER

STAPLES

3.1%

Beverages

0.2%

Boston

Beer,

Class

A  (1)

1,500‌

494‌

Celsius

Holdings  (1)

5,600‌

583‌

Coca-Cola

Consolidated 

900‌

461‌

National

Beverage  (1)

3,696‌

172‌

Willamette

Valley

Vineyards  (1)

10,850‌

65‌

1,775‌

Food

&

Staples

Retailing

0.9%

Albertsons,

Class

A 

11,178‌

232‌

Andersons 

8,400‌

294‌

BJ's

Wholesale

Club

Holdings  (1)

22,800‌

1,508‌

Casey's

General

Stores 

5,500‌

1,234‌

Chefs'

Warehouse  (1)

6,300‌

210‌

Grocery

Outlet

Holding  (1)

7,832‌

229‌

Ingles

Markets,

Class

A 

3,500��

337‌

Performance

Food

Group  (1)

18,468‌

1,078‌

PriceSmart 

3,450‌

210‌

Rite

Aid  (1)(2)

17,400‌

58‌

SpartanNash 

8,826‌

267‌

Sprouts

Farmers

Market  (1)

17,200‌

557‌

U.S.

Foods

Holding  (1)

32,300‌

1,099‌

United

Natural

Foods  (1)

9,300‌

360‌

7,673‌

Food

Products

1.3%

B&G

Foods 

8,400‌

94‌

Beyond

Meat  (1)(2)

13,000‌

160‌

Bunge 

19,102‌

1,906‌

Calavo

Growers 

7,863‌

231‌

Cal-Maine

Foods 

4,900‌

267‌

Darling

Ingredients  (1)

26,700‌

1,671‌

Farmer

Bros.  (1)

12,800‌

59‌

Flowers

Foods 

33,083‌

951‌

Fresh

Del

Monte

Produce 

8,200‌

215‌

Freshpet  (1)

8,138‌

429‌

Hain

Celestial

Group  (1)

11,000‌

178‌

Hostess

Brands  (1)

26,500‌

595‌

Ingredion 

8,500‌

832‌

J

&

J

Snack

Foods 

549‌

82‌

John

B.

Sanfilippo

&

Son 

2,942‌

239‌

Lancaster

Colony 

2,465‌

486‌

Post

Holdings  (1)

7,985‌

721‌

Seaboard 

80‌

302‌

Simply

Good

Foods  (1)

10,427‌

397‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

33

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Tattooed

Chef  (1)(2)

38,300‌

47‌

TreeHouse

Foods  (1)

4,443‌

219‌

Utz

Brands 

5,200‌

83‌

Vital

Farms  (1)

17,500‌

261‌

10,425‌

Household

Products

0.2%

Central

Garden

&

Pet,

Class

A  (1)

7,900‌

283‌

Energizer

Holdings 

9,250‌

310‌

Spectrum

Brands

Holdings 

6,211‌

379‌

WD-40 

2,500‌

403‌

1,375‌

Personal

Products

0.4%

Beauty

Health  (1)(2)

16,400‌

149‌

BellRing

Brands  (1)

17,446‌

447‌

Coty,

Class

A  (1)

49,249‌

421‌

Edgewell

Personal

Care 

8,050‌

310‌

elf

Beauty  (1)

9,099‌

503‌

Herbalife

Nutrition  (1)

15,900‌

237‌

Inter

Parfums 

3,500‌

338‌

Lifevantage 

25,900‌

96‌

Medifast 

2,200‌

254‌

Nu

Skin

Enterprises,

Class

A 

8,600‌

363‌

USANA

Health

Sciences  (1)

2,100‌

112‌

Veru  (1)

13,600‌

72‌

3,302‌

Tobacco

0.1%

22nd

Century

Group  (1)(2)

63,100‌

58‌

Universal 

3,808‌

201‌

Vector

Group 

22,482‌

267‌

526‌

Total

Consumer

Staples

25,076‌

ENERGY

4.9%

Energy

Equipment

&

Services

1.2%

Archrock 

38,867‌

349‌

Cactus,

Class

A 

11,000‌

553‌

ChampionX 

27,700‌

803‌

DMC

Global  (1)

13,700‌

266‌

Helmerich

&

Payne 

17,500‌

867‌

Liberty

Energy,

Class

A 

27,467‌

440‌

Mammoth

Energy

Services  (1)

18,000‌

156‌

Nabors

Industries  (1)

2,100‌

325‌

Newpark

Resources  (1)

11,876‌

49‌

Noble  (1)

13,920‌

525‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

34

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

NOV 

66,100‌

1,381‌

Oceaneering

International  (1)

14,225‌

249‌

Patterson-UTI

Energy 

34,626‌

583‌

Solaris

Oilfield

Infrastructure,

Class

A 

27,356‌

272‌

TechnipFMC  (1)

70,664‌

861‌

TETRA

Technologies  (1)

16,241‌

56‌

Tidewater  (1)

9,766‌

360‌

Transocean  (1)(2)

112,500‌

513‌

Valaris  (1)

8,900‌

602‌

Weatherford

International  (1)

9,900‌

504‌

9,714‌

Oil,

Gas

&

Consumable

Fuels

3.7%

Adams

Resources

&

Energy 

4,841‌

188‌

Aemetis  (1)(2)

9,400‌

37‌

Antero

Midstream 

52,300‌

564‌

Antero

Resources  (1)

40,961‌

1,269‌

Arch

Resources 

2,200‌

314‌

California

Resources 

11,200‌

487‌

Callon

Petroleum  (1)

7,253‌

269‌

Centrus

Energy,

Class

A  (1)

2,500‌

81‌

Cheniere

Energy 

35,027‌

5,253‌

Chesapeake

Energy 

14,241‌

1,344‌

Chord

Energy 

6,275‌

859‌

Civitas

Resources 

9,200‌

533‌

CNX

Resources  (1)

33,900‌

571‌

Comstock

Resources 

14,200‌

195‌

CONSOL

Energy 

4,700‌

306‌

Crescent

Energy,

Class

A  (2)

8,820‌

106‌

CVR

Energy 

8,300‌

260‌

Delek

U.S.

Holdings 

16,900‌

456‌

Denbury  (1)

7,000‌

609‌

Dorian

LPG 

11,800‌

224‌

DT

Midstream 

11,600‌

641‌

Equitrans

Midstream 

44,895‌

301‌

Green

Plains  (1)

8,700‌

265‌

HF

Sinclair 

21,677‌

1,125‌

International

Seaways 

8,600‌

318‌

Kosmos

Energy  (1)

82,000‌

522‌

Magnolia

Oil

&

Gas,

Class

A 

30,071‌

705‌

Matador

Resources 

11,476‌

657‌

Murphy

Oil 

23,918‌

1,029‌

New

Fortress

Energy 

7,200‌

305‌

Northern

Oil

&

Gas 

9,610‌

296‌

Ovintiv 

35,960‌

1,824‌

PBF

Energy,

Class

A 

13,203‌

538‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

35

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

PDC

Energy 

16,436‌

1,043‌

Peabody

Energy  (1)

17,000‌

449‌

Permian

Resources 

36,400‌

342‌

Range

Resources 

41,100‌

1,028‌

REX

American

Resources  (1)

6,150‌

196‌

Ring

Energy  (1)

38,900‌

96‌

SandRidge

Energy  (1)

10,585‌

180‌

SM

Energy 

20,300‌

707‌

Southwestern

Energy  (1)

159,100‌

931‌

Talos

Energy  (1)

12,000‌

227‌

Tellurian  (1)(2)

70,700‌

119‌

Texas

Pacific

Land 

900‌

2,110‌

Uranium

Energy  (1)(2)

59,300‌

230‌

World

Fuel

Services 

15,300‌

418‌

30,527‌

Total

Energy

40,241‌

FINANCIALS

15.8%

Banks

6.1%

1st

Source 

6,295‌

334‌

Ameris

Bancorp 

10,100‌

476‌

Arrow

Financial 

7,668‌

260‌

Associated

Banc-Corp 

28,827‌

666‌

Atlantic

Union

Bankshares 

14,747‌

518‌

Banc

of

California 

13,700‌

218‌

BancFirst 

2,817‌

248‌

Bancorp  (1)

12,300‌

349‌

Bank

of

Hawaii 

5,166‌

401‌

Bank

OZK 

19,000‌

761‌

BankUnited 

16,018‌

544‌

Banner 

3,571‌

226‌

Berkshire

Hills

Bancorp 

10,741‌

321‌

BOK

Financial 

4,060‌

421‌

Brookline

Bancorp 

22,331‌

316‌

Cadence

Bank 

31,375‌

774‌

Cathay

General

Bancorp 

7,294‌

298‌

City

Holding 

4,250‌

396‌

Columbia

Banking

System 

10,450‌

315‌

Commerce

Bancshares 

16,204‌

1,103‌

Community

Bank

System 

9,628‌

606‌

ConnectOne

Bancorp 

9,083‌

220‌

Cullen/Frost

Bankers 

8,450‌

1,130‌

CVB

Financial 

26,706‌

688‌

Dime

Community

Bancshares 

7,700‌

245‌

East

West

Bancorp 

21,000‌

1,384‌

Eastern

Bankshares 

29,000‌

500‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

36

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

First

Bancorp

North

Carolina 

8,913‌

382‌

First

BanCorp

Puerto

Rico 

31,300‌

398‌

First

Busey 

11,729‌

290‌

First

Citizens

BancShares,

Class

A 

1,824‌

1,383‌

First

Commonwealth

Financial 

17,900‌

250‌

First

Community

Bankshares 

10,025‌

340‌

First

Financial 

7,880‌

363‌

First

Financial

Bancorp 

13,000‌

315‌

First

Financial

Bankshares 

23,176‌

797‌

First

Hawaiian 

14,900‌

388‌

First

Horizon 

73,206‌

1,794‌

First

Interstate

BancSystem,

Class

A 

12,942‌

500‌

First

Merchants 

11,013‌

453‌

First

United 

7,811‌

153‌

Flushing

Financial 

8,825‌

171‌

FNB 

30,756‌

401‌

Fulton

Financial 

8,302‌

140‌

German

American

Bancorp 

7,533‌

281‌

Glacier

Bancorp 

15,512‌

767‌

Hancock

Whitney 

12,400‌

600‌

Hilltop

Holdings 

12,398‌

372‌

Home

BancShares 

28,776‌

656‌

HomeStreet 

13,515‌

373‌

Hope

Bancorp 

25,700‌

329‌

Independent

Bank 

6,690‌

565‌

Independent

Bank

Group 

1,800‌

108‌

International

Bancshares 

8,002‌

366‌

Live

Oak

Bancshares 

6,400‌

193‌

Macatawa

Bank 

19,534‌

215‌

MVB

Financial 

6,700‌

148‌

National

Bank

Holdings,

Class

A 

9,000‌

379‌

NBT

Bancorp 

11,093‌

482‌

Nicolet

Bankshares  (1)

3,400‌

271‌

Northrim

BanCorp 

6,051‌

330‌

Northwest

Bancshares 

24,083‌

337‌

OceanFirst

Financial 

16,200‌

344‌

OFG

Bancorp 

9,700‌

267‌

Old

National

Bancorp 

29,748‌

535‌

Pacific

Premier

Bancorp 

15,900‌

502‌

PacWest

Bancorp 

17,612‌

404‌

Park

National 

2,440‌

343‌

Peapack-Gladstone

Financial 

6,557‌

244‌

Peoples

Bancorp 

9,913‌

280‌

Pinnacle

Financial

Partners 

12,449‌

914‌

Popular 

13,647‌

905‌

Preferred

Bank 

3,072‌

229‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

37

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Prosperity

Bancshares 

12,760‌

927‌

Renasant 

10,652‌

400‌

S&T

Bancorp 

9,220‌

315‌

Sandy

Spring

Bancorp 

11,930‌

420‌

Seacoast

Banking 

11,639‌

363‌

ServisFirst

Bancshares 

8,300‌

572‌

Silvergate

Capital,

Class

A  (1)(2)

4,400‌

77‌

Simmons

First

National,

Class

A 

17,010‌

367‌

Southside

Bancshares 

8,690‌

313‌

SouthState 

12,516‌

956‌

Stock

Yards

Bancorp 

7,181‌

467‌

Synovus

Financial 

23,084‌

867‌

Texas

Capital

Bancshares  (1)

9,000‌

543‌

Tompkins

Financial 

3,423‌

266‌

Towne

Bank 

15,200‌

469‌

TriCo

Bancshares 

7,900‌

403‌

Trustmark 

13,000‌

454‌

UMB

Financial 

7,312‌

611‌

Umpqua

Holdings 

31,302‌

559‌

United

Bankshares 

22,100‌

895‌

United

Community

Banks 

16,196‌

547‌

Univest

Financial 

12,300‌

321‌

Valley

National

Bancorp 

45,300‌

512‌

Veritex

Holdings 

9,000‌

253‌

Washington

Federal 

5,368‌

180‌

Washington

Trust

Bancorp 

4,500‌

212‌

Webster

Financial 

27,938‌

1,323‌

WesBanco 

14,042‌

519‌

West

BanCorp 

12,300‌

314‌

Westamerica

BanCorp 

5,346‌

315‌

Western

Alliance

Bancorp 

18,019‌

1,073‌

Wintrust

Financial 

5,400‌

456‌

50,244‌

Capital

Markets

3.8%

Affiliated

Managers

Group 

5,300‌

840‌

Ares

Management,

Class

A 

23,339‌

1,597‌

Artisan

Partners

Asset

Management,

Class

A 

9,800‌

291‌

BGC

Partners,

Class

A 

49,400‌

186‌

Blackstone 

100,326‌

7,443‌

Blue

Owl

Capital  (2)

64,907‌

688‌

Carlyle

Group 

30,314‌

905‌

Cohen

&

Steers 

3,200‌

207‌

Coinbase

Global,

Class

A  (1)

20,051‌

710‌

Cowen,

Class

A 

7,724‌

298‌

Donnelley

Financial

Solutions  (1)

6,475‌

250‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

38

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Evercore,

Class

A 

5,400‌

589‌

Federated

Hermes 

15,700‌

570‌

Focus

Financial

Partners,

Class

A  (1)

6,800‌

253‌

Hamilton

Lane,

Class

A 

5,200‌

332‌

Houlihan

Lokey 

7,715‌

672‌

Interactive

Brokers

Group,

Class

A 

12,200‌

883‌

Janus

Henderson

Group 

20,323‌

478‌

Jefferies

Financial

Group 

27,047‌

927‌

KKR 

84,492‌

3,922‌

Lazard,

Class

A 

20,500‌

711‌

LPL

Financial

Holdings 

11,500‌

2,486‌

Moelis,

Class

A 

3,067‌

118‌

Morningstar 

3,300‌

715‌

Open

Lending,

Class

A  (1)

29,471‌

199‌

Piper

Sandler 

2,550‌

332‌

PJT

Partners,

Class

A 

4,800‌

354‌

Robinhood

Markets,

Class

A  (1)

72,354‌

589‌

SEI

Investments 

13,256‌

773‌

StepStone

Group,

Class

A 

10,977‌

276‌

Stifel

Financial 

15,229‌

889‌

StoneX

Group  (1)

4,481‌

427‌

Tradeweb

Markets,

Class

A 

17,148‌

1,113‌

U.S.

Global

Investors,

Class

A 

26,700‌

77‌

Virtu

Financial,

Class

A 

14,596‌

298‌

Virtus

Investment

Partners 

1,832‌

351‌

31,749‌

Consumer

Finance

0.7%

Ally

Financial 

41,425‌

1,013‌

Bread

Financial

Holdings 

6,900‌

260‌

Credit

Acceptance  (1)(2)

1,000‌

474‌

Encore

Capital

Group  (1)

5,000‌

240‌

Enova

International  (1)

3,339‌

128‌

EZCORP,

Class

A  (1)

24,495‌

200‌

FirstCash

Holdings 

7,138‌

620‌

Green

Dot,

Class

A  (1)

9,800‌

155‌

LendingClub  (1)

15,400‌

135‌

LendingTree  (1)

5,225‌

111‌

Navient 

20,000‌

329‌

OneMain

Holdings 

19,800‌

660‌

PRA

Group  (1)

10,650‌

360‌

PROG

Holdings  (1)

11,535‌

195‌

SLM 

40,500‌

672‌

SoFi

Technologies  (1)

59,028‌

272‌

Upstart

Holdings  (1)(2)

12,300‌

163‌

5,987‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

39

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Diversified

Financial

Services

0.9%

Apollo

Global

Management 

64,339‌

4,104‌

Cannae

Holdings  (1)

9,900‌

204‌

Corebridge

Financial 

17,001‌

341‌

Equitable

Holdings 

56,626‌

1,625‌

Jackson

Financial,

Class

A 

7,517‌

262‌

Voya

Financial 

16,575‌

1,019‌

7,555‌

Insurance

2.8%

Ambac

Financial

Group  (1)

14,700‌

256‌

American

Equity

Investment

Life

Holding 

11,000‌

502‌

American

Financial

Group 

8,910‌

1,223‌

Argo

Group

International

Holdings 

7,622‌

197‌

Assured

Guaranty 

10,800‌

672‌

Axis

Capital

Holdings 

15,073‌

817‌

Brighthouse

Financial  (1)

11,700‌

600‌

BRP

Group,

Class

A  (1)

12,000‌

302‌

CNO

Financial

Group 

18,700‌

427‌

Enstar

Group  (1)

2,500‌

578‌

Erie

Indemnity,

Class

A 

3,407‌

847‌

Fidelity

National

Financial 

37,731‌

1,419‌

First

American

Financial 

14,430‌

755‌

Genworth

Financial,

Class

A  (1)

88,600‌

469‌

GoHealth,

Class

A  (1)(2)

750‌

8‌

Hanover

Insurance

Group 

5,676‌

767‌

Horace

Mann

Educators 

7,210‌

269‌

James

River

Group

Holdings 

7,500‌

157‌

Kemper 

13,390‌

659‌

Kinsale

Capital

Group 

1,918‌

502‌

Markel  (1)

1,979‌

2,607‌

MBIA  (1)

13,200‌

170‌

Mercury

General 

1,800‌

62‌

National

Western

Life

Group,

Class

A 

608‌

171‌

Old

Republic

International 

31,793‌

768‌

Oscar

Health,

Class

A  (1)

22,100‌

54‌

Palomar

Holdings  (1)

6,096‌

275‌

Primerica 

6,600‌

936‌

ProAssurance 

13,640‌

238‌

Reinsurance

Group

of

America 

9,720‌

1,381‌

RenaissanceRe

Holdings 

7,400‌

1,363‌

RLI 

3,768‌

495‌

Root,

Class

A  (1)(2)

16,705‌

75‌

Ryan

Specialty

Group

Holdings  (1)

7,592‌

315‌

Safety

Insurance

Group 

2,786‌

235‌

Selective

Insurance

Group 

9,600‌

851‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

40

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Stewart

Information

Services 

4,480‌

191‌

Trupanion  (1)(2)

789‌

38‌

United

Fire

Group 

6,438‌

176‌

Unum

Group 

23,800‌

977‌

White

Mountains

Insurance

Group 

411‌

581‌

23,385‌

Mortgage

Real

Estate

Investment

Trusts

0.8%

ACRES

Commercial

Realty,

REIT  (1)

16,332‌

135‌

AGNC

Investment,

REIT 

55,693‌

576‌

Annaly

Capital

Management,

REIT 

68,230‌

1,438‌

Apollo

Commercial

Real

Estate

Finance,

REIT 

5,900‌

63‌

Arbor

Realty

Trust,

REIT 

7,100‌

94‌

Ares

Commercial

Real

Estate,

REIT  (2)

23,100‌

238‌

Arlington

Asset

Investment,

Class

A,

REIT  (1)(2)

32,800‌

96‌

ARMOUR

Residential

REIT,

REIT  (2)

20,500‌

115‌

Blackstone

Mortgage

Trust,

Class

A,

REIT  (2)

13,509‌

286‌

BrightSpire

Capital,

REIT 

31,500‌

196‌

Cherry

Hill

Mortgage

Investment,

REIT  (2)

19,062‌

111‌

Chimera

Investment,

REIT  (2)

29,800‌

164‌

Claros

Mortgage

Trust  (2)

9,753‌

143‌

Dynex

Capital,

REIT 

3,700‌

47‌

Hannon

Armstrong

Sustainable

Infrastructure

Capital,

REIT  (2)

16,476‌

477‌

Invesco

Mortgage

Capital,

REIT  (2)

9,260‌

118‌

Ladder

Capital,

REIT 

27,500‌

276‌

MFA

Financial,

REIT 

28,122‌

277‌

PennyMac

Mortgage

Investment

Trust,

REIT  (2)

21,600‌

268‌

Ready

Capital,

REIT  (2)

13,636‌

152‌

Redwood

Trust,

REIT  (2)

33,367‌

226‌

Rithm

Capital,

REIT 

38,250‌

313‌

Starwood

Property

Trust,

REIT 

43,800‌

803‌

TPG

RE

Finance

Trust,

REIT 

26,100‌

177‌

Two

Harbors

Investment,

REIT 

13,200‌

208‌

6,997‌

Thrifts

&

Mortgage

Finance

0.7%

Axos

Financial  (1)

8,400‌

321‌

Capitol

Federal

Financial 

20,644‌

178‌

Essent

Group 

8,100‌

315‌

Federal

Agricultural

Mortgage,

Class

C 

2,028‌

229‌

Kearny

Financial 

29,937‌

304‌

MGIC

Investment 

44,400‌

577‌

Mr

Cooper

Group  (1)

8,885‌

356‌

New

York

Community

Bancorp 

82,633‌

711‌

NMI

Holdings,

Class

A  (1)

16,800‌

351‌

Ocwen

Financial  (1)

4,762‌

146‌

PennyMac

Financial

Services 

6,065‌

344‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

41

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Provident

Financial

Services 

16,823‌

359‌

Radian

Group 

15,658‌

299‌

Rocket,

Class

A 

15,600‌

109‌

TrustCo

Bank 

7,232‌

272‌

UWM

Holdings  (2)

58,800‌

195‌

Walker

&

Dunlop 

5,000‌

392‌

Western

New

England

Bancorp 

19,400‌

183‌

WSFS

Financial 

8,550‌

388‌

6,029‌

Total

Financials

131,946‌

HEALTH

CARE

13.8%

Biotechnology

6.0%

4D

Molecular

Therapeutics  (1)

4,089‌

91‌

Aadi

Bioscience  (1)

6,779‌

87‌

ACADIA

Pharmaceuticals  (1)

28,300‌

450‌

Adamas

Pharmaceuticals,

CVR  (1)(3)

26,000‌

5‌

Adamas

Pharmaceuticals,

CVR  (1)(3)

26,000‌

—‌

Agenus  (1)

79,000‌

190‌

Agios

Pharmaceuticals  (1)

11,100‌

312‌

Aldeyra

Therapeutics  (1)

24,177‌

168‌

Alector  (1)

13,300‌

123‌

Alkermes  (1)

27,600‌

721‌

Allakos  (1)(2)

19,459‌

164‌

Allovir  (1)(2)

7,100‌

36‌

Alnylam

Pharmaceuticals  (1)

17,900‌

4,254‌

Altimmune  (1)

10,800‌

178‌

Amicus

Therapeutics  (1)

41,500‌

507‌

Anavex

Life

Sciences  (1)(2)

13,100‌

121‌

Annovis

Bio  (1)

6,300‌

85‌

Apellis

Pharmaceuticals  (1)

18,000‌

931‌

Arcturus

Therapeutics

Holdings  (1)

5,700‌

97‌

Arcus

Biosciences  (1)

9,900‌

205‌

Arrowhead

Pharmaceuticals  (1)

16,000‌

649‌

Atara

Biotherapeutics  (1)

39,500‌

130‌

Avid

Bioservices  (1)

12,400‌

171‌

Beam

Therapeutics  (1)

9,900‌

387‌

BioCryst

Pharmaceuticals  (1)(2)

25,775‌

296‌

Biohaven  (1)

7,964‌

110‌

BioMarin

Pharmaceutical  (1)

26,090‌

2,700‌

Blueprint

Medicines  (1)

10,500‌

460‌

Bridgebio

Pharma  (1)(2)

32,205‌

245‌

C4

Therapeutics  (1)

12,400‌

73‌

CareDx  (1)

9,600‌

109‌

Celldex

Therapeutics  (1)

7,300‌

325‌

CEL-SCI  (1)(2)

26,800‌

63‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

42

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Cerevel

Therapeutics

Holdings  (1)(2)

11,300‌

356‌

Coherus

Biosciences  (1)

4,200‌

33‌

CRISPR

Therapeutics  (1)(2)

7,518‌

306‌

Cullinan

Oncology  (1)

8,900‌

94‌

Curis  (1)(2)

73,500‌

40‌

Cytokinetics  (1)(2)

15,296‌

701‌

Denali

Therapeutics  (1)

13,900‌

387‌

Dynavax

Technologies  (1)

17,700‌

188‌

Editas

Medicine  (1)

5,200‌

46‌

Emergent

BioSolutions  (1)

7,800‌

92‌

Enanta

Pharmaceuticals  (1)

4,500‌

209‌

EQRx  (1)

24,800‌

61‌

Exact

Sciences  (1)

21,100‌

1,045‌

Exelixis  (1)

50,990‌

818‌

Fate

Therapeutics  (1)

12,200‌

123‌

G1

Therapeutics  (1)(2)

17,755‌

96‌

Generation

Bio  (1)

20,600‌

81‌

Gritstone

bio  (1)(2)

17,300‌

60‌

Halozyme

Therapeutics  (1)

20,700‌

1,178‌

Horizon

Therapeutics  (1)

33,700‌

3,835‌

IGM

Biosciences  (1)

9,200‌

156‌

ImmunoGen  (1)

35,400‌

176‌

Inovio

Pharmaceuticals  (1)

22,000‌

34‌

Insmed  (1)

25,421‌

508‌

Intellia

Therapeutics  (1)

12,800‌

447‌

Intercept

Pharmaceuticals  (1)

8,631‌

107‌

Invivyd  (1)

7,575‌

11‌

Ionis

Pharmaceuticals  (1)

26,485‌

1,000‌

Iovance

Biotherapeutics  (1)

26,288‌

168‌

Ironwood

Pharmaceuticals  (1)

17,120‌

212‌

IVERIC

bio  (1)

17,400‌

372‌

KalVista

Pharmaceuticals  (1)

21,400‌

145‌

Karuna

Therapeutics  (1)

5,019‌

986‌

Karyopharm

Therapeutics  (1)(2)

26,700‌

91‌

Keros

Therapeutics  (1)

5,500‌

264‌

Krystal

Biotech  (1)

2,700‌

214‌

Kymera

Therapeutics  (1)(2)

10,400‌

260‌

Lexicon

Pharmaceuticals  (1)

50,600‌

97‌

Ligand

Pharmaceuticals  (1)

1,386‌

93‌

Lineage

Cell

Therapeutics  (1)(2)

89,100‌

104‌

Madrigal

Pharmaceuticals  (1)

2,881‌

836‌

MannKind  (1)(2)

54,600‌

288‌

Mirati

Therapeutics  (1)

5,463‌

247‌

Morphic

Holding  (1)

6,900‌

185‌

Myovant

Sciences  (1)

10,900‌

294‌

Myriad

Genetics  (1)

14,280‌

207‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

43

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Natera  (1)

15,400‌

619‌

Neurocrine

Biosciences  (1)

15,102‌

1,804‌

Novavax  (1)(2)

11,450‌

118‌

Nurix

Therapeutics  (1)

11,800‌

130‌

Ocugen  (1)

62,400‌

81‌

Olema

Pharmaceuticals  (1)

18,300‌

45‌

Ovid

therapeutics  (1)

27,500‌

51‌

PMV

Pharmaceuticals  (1)

12,100‌

105‌

Point

Biopharma

Global  (1)(2)

24,000‌

175‌

Praxis

Precision

Medicines  (1)

41,800‌

99‌

Precigen  (1)

124,200‌

189‌

Prometheus

Biosciences  (1)

5,478‌

603‌

Prothena  (1)

9,118‌

549‌

PTC

Therapeutics  (1)

13,000‌

496‌

RAPT

Therapeutics  (1)

7,200‌

143‌

Recursion

Pharmaceuticals,

Class

A  (1)

22,400‌

173‌

REGENXBIO  (1)

6,421‌

146‌

Relay

Therapeutics  (1)

12,800‌

191‌

Replimune

Group  (1)

13,700‌

373‌

REVOLUTION

Medicines  (1)

14,800‌

352‌

Rhythm

Pharmaceuticals  (1)

7,300‌

213‌

Rigel

Pharmaceuticals  (1)

80,100‌

120‌

Rocket

Pharmaceuticals  (1)

11,599‌

227‌

Sage

Therapeutics  (1)

8,700‌

332‌

Sana

Biotechnology  (1)(2)

29,700‌

117‌

Sangamo

Therapeutics  (1)

35,400‌

111‌

Sarepta

Therapeutics  (1)

13,216‌

1,712‌

Scholar

Rock

Holding  (1)

14,814‌

134‌

Seagen  (1)

19,930‌

2,561‌

SELLAS

Life

Sciences

Group  (1)(2)

17,100‌

40‌

Shattuck

Labs  (1)

19,300‌

44‌

Sorrento

Therapeutics  (1)(2)

75,187‌

67‌

SpringWorks

Therapeutics  (1)(2)

7,700‌

200‌

Syros

Pharmaceuticals  (1)(2)

12,150‌

44‌

TCR2

Therapeutics  (1)

48,900‌

49‌

TG

Therapeutics  (1)

22,700‌

269‌

Travere

Therapeutics  (1)(2)

10,200‌

214‌

Twist

Bioscience  (1)

8,600‌

205‌

Ultragenyx

Pharmaceutical  (1)

13,100‌

607‌

United

Therapeutics  (1)

6,500‌

1,808‌

Vaxart  (1)

29,200‌

28‌

Vaxcyte  (1)

8,964‌

430‌

VBI

Vaccines  (1)(2)

146,800‌

57‌

Veracyte  (1)

8,500‌

202‌

Vericel  (1)

5,805‌

153‌

Verve

Therapeutics  (1)

6,600‌

128‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

44

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Vir

Biotechnology  (1)

12,400‌

314‌

Viridian

Therapeutics  (1)

10,800‌

315‌

Voyager

Therapeutics  (1)

24,900‌

152‌

Xencor  (1)

11,538‌

300‌

XOMA  (1)(2)

6,534‌

120‌

Zentalis

Pharmaceuticals  (1)

9,100‌

183‌

49,592‌

Health

Care

Equipment

&

Supplies

2.8%

AngioDynamics (1)

3,000‌

41‌

Artivion  (1)

5,750‌

70‌

Asensus

Surgical  (1)

225,800‌

78‌

AtriCure  (1)

9,700‌

430‌

Avanos

Medical  (1)

9,042‌

245‌

Axonics  (1)

6,400‌

400‌

Butterfly

Network  (1)(2)

38,100‌

94‌

Cardiovascular

Systems  (1)

12,100‌

165‌

Cerus  (1)

39,200‌

143‌

ClearPoint

Neuro  (1)(2)

14,000‌

119‌

CONMED 

4,950‌

439‌

Enovis  (1)

6,714‌

359‌

Envista

Holdings  (1)

25,800‌

869‌

Figs,

Class

A  (1)

15,500‌

104‌

Glaukos  (1)

8,600‌

376‌

Globus

Medical,

Class

A  (1)

11,300‌

839‌

Haemonetics  (1)

6,800‌

535‌

Heska  (1)

2,200‌

137‌

ICU

Medical  (1)

1,600‌

252‌

Inari

Medical  (1)(2)

7,505‌

477‌

Inogen  (1)

9,500‌

187‌

Inspire

Medical

Systems  (1)

5,000‌

1,259‌

Insulet  (1)

10,600‌

3,121‌

Integer

Holdings  (1)

3,850‌

264‌

Integra

LifeSciences

Holdings  (1)

9,900‌

555‌

iRhythm

Technologies  (1)

5,836‌

547‌

Lantheus

Holdings  (1)

10,700‌

545‌

LivaNova  (1)

4,700‌

261‌

Masimo  (1)

6,000‌

888‌

Meridian

Bioscience  (1)

7,075‌

235‌

Merit

Medical

Systems  (1)

6,806‌

481‌

Mesa

Laboratories 

1,400‌

233‌

Neogen  (1)

32,132‌

489‌

Nevro  (1)

7,746‌

307‌

Novocure  (1)

14,095‌

1,034‌

NuVasive  (1)

8,000‌

330‌

Omnicell  (1)

8,020‌

404‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

45

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

OraSure

Technologies  (1)

37,175‌

179‌

Outset

Medical  (1)

12,000‌

310‌

Penumbra  (1)

6,700‌

1,490‌

Pulmonx  (1)

11,500‌

97‌

QuidelOrtho  (1)

6,600‌

565‌

SeaSpine

Holdings  (1)

28,297‌

236‌

Senseonics

Holdings  (1)

83,400‌

86‌

Shockwave

Medical  (1)

5,400‌

1,110‌

Silk

Road

Medical  (1)

10,000‌

528‌

STAAR

Surgical  (1)

7,700‌

374‌

Tactile

Systems

Technology  (1)

10,650‌

122‌

Tandem

Diabetes

Care  (1)

11,900‌

535‌

TransMedics

Group  (1)

4,600‌

284‌

Zimvie  (1)

7,400‌

69‌

23,297‌

Health

Care

Providers

&

Services

1.9%

1Life

Healthcare  (1)

18,300‌

306‌

23andMe

Holding,

Class

A  (1)

15,400‌

33‌

Acadia

Healthcare  (1)

14,400‌

1,185‌

Accolade  (1)

14,200‌

111‌

AdaptHealth  (1)

11,800‌

227‌

agilon

health  (1)(2)

36,286‌

586‌

Amedisys  (1)

5,600‌

468‌

AMN

Healthcare

Services  (1)

6,505‌

669‌

Apollo

Medical

Holdings  (1)

7,600‌

225‌

Aveanna

Healthcare

Holdings  (1)

51,000‌

40‌

Brookdale

Senior

Living  (1)

64,400‌

176‌

Cano

Health  (1)(2)

22,100‌

30‌

Castle

Biosciences  (1)

4,600‌

108‌

Chemed 

2,300‌

1,174‌

Clover

Health

Investments  (1)(2)

66,327‌

62‌

Community

Health

Systems  (1)

46,700‌

202‌

CorVel  (1)

2,250‌

327‌

Encompass

Health 

13,400‌

801‌

Enhabit  (1)

11,500‌

151‌

Ensign

Group 

8,800‌

833‌

Guardant

Health  (1)(2)

16,600‌

452‌

HealthEquity  (1)

12,700‌

783‌

Hims

&

Hers

Health  (1)

39,800‌

255‌

Invitae  (1)(2)

24,600‌

46‌

LHC

Group  (1)

5,200‌

841‌

ModivCare  (1)

2,700‌

242‌

National

HealthCare 

5,123‌

305‌

National

Research 

7,200‌

269‌

Oak

Street

Health  (1)(2)

19,000‌

409‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

46

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

OPKO

Health  (1)(2)

81,986‌

102‌

Option

Care

Health  (1)

20,300‌

611‌

Owens

&

Minor 

12,100‌

236‌

Patterson 

11,719‌

328‌

Pediatrix

Medical

Group  (1)

4,800‌

71‌

Pennant

Group  (1)

12,250‌

135‌

Premier,

Class

A 

9,180‌

321‌

Privia

Health

Group  (1)

8,400‌

191‌

Progyny  (1)

11,600‌

361‌

R1

RCM  (1)

5,600‌

61‌

RadNet  (1)

10,200‌

192‌

Select

Medical

Holdings 

21,700‌

539‌

Signify

Health,

Class

A  (1)

10,900‌

312‌

Surgery

Partners  (1)

10,700‌

298‌

Tenet

Healthcare  (1)

16,200‌

790‌

15,864‌

Health

Care

Technology

0.7%

CareCloud (1)

23,700‌

67‌

Certara  (1)

19,200‌

309‌

Doximity,

Class

A  (1)(2)

11,991‌

402‌

Evolent

Health,

Class

A  (1)

12,700‌

357‌

Health

Catalyst  (1)

12,900‌

137‌

HealthStream  (1)

9,300‌

231‌

Multiplan  (1)(2)

77,800‌

89‌

NextGen

Healthcare  (1)

16,000‌

300‌

Phreesia  (1)

12,200‌

395‌

Schrodinger  (1)

9,500‌

178‌

Sharecare  (1)(2)

87,200‌

139‌

Teladoc

Health  (1)

14,962‌

354‌

Veeva

Systems,

Class

A  (1)

20,090‌

3,242‌

6,200‌

Life

Sciences

Tools

&

Services

1.1%

10X

Genomics,

Class

A  (1)

13,700‌

499‌

Adaptive

Biotechnologies  (1)

25,700‌

196‌

Avantor  (1)

95,737‌

2,019‌

Azenta 

10,900‌

635‌

BioLife

Solutions  (1)

5,100‌

93‌

Bruker 

15,050‌

1,029‌

Codexis  (1)(2)

33,100‌

154‌

CryoPort  (1)(2)

8,000‌

139‌

Inotiv  (1)(2)

5,800‌

29‌

Maravai

LifeSciences

Holdings,

Class

A  (1)

19,000‌

272‌

Medpace

Holdings  (1)

4,200‌

892‌

NanoString

Technologies  (1)

23,200‌

185‌

NeoGenomics  (1)

26,200‌

242‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

47

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Omniab,

Earn

Out

Shares

$12.50  (1)

525‌

—‌

Omniab,

Earn

Out

Shares

$15.00  (1)

525‌

—‌

Pacific

Biosciences

of

California  (1)(2)

41,300‌

338‌

Personalis  (1)

65,900‌

130‌

Quantum-Si  (1)

30,000‌

55‌

Repligen  (1)

7,800‌

1,321‌

Seer  (1)

13,900‌

81‌

Sotera

Health  (1)

10,800‌

90‌

Syneos

Health  (1)

10,200‌

374‌

8,773‌

Pharmaceuticals

1.3%

Aclaris

Therapeutics  (1)

16,300‌

257‌

Arvinas  (1)

9,057‌

310‌

Atea

Pharmaceuticals  (1)

15,800‌

76‌

Axsome

Therapeutics  (1)(2)

4,200‌

324‌

Cassava

Sciences  (1)(2)

7,600‌

224‌

CinCor

Pharma  (1)

5,316‌

65‌

Collegium

Pharmaceutical  (1)

12,000‌

278‌

Corcept

Therapeutics  (1)

13,600‌

276‌

Elanco

Animal

Health  (1)

79,738‌

974‌

Evolus  (1)

15,500‌

116‌

Fulcrum

Therapeutics  (1)(2)

17,900‌

130‌

Harmony

Biosciences

Holdings  (1)

5,000‌

275‌

Harrow

Health  (1)

18,000‌

266‌

Innoviva  (1)

17,400‌

231‌

Intra-Cellular

Therapies  (1)

13,192‌

698‌

Jazz

Pharmaceuticals  (1)

7,500‌

1,195‌

Lipocine  (1)

90,600‌

35‌

Nektar

Therapeutics  (1)

57,800‌

131‌

NGM

Biopharmaceuticals  (1)

27,800‌

140‌

Nuvation

Bio  (1)

63,100‌

121‌

Pacira

BioSciences  (1)

7,100‌

274‌

Perrigo 

18,403‌

627‌

Phibro

Animal

Health,

Class

A 

9,514‌

128‌

Prestige

Consumer

Healthcare  (1)

8,571‌

537‌

Reata

Pharmaceuticals,

Class

A  (1)(2)

6,200‌

236‌

Revance

Therapeutics  (1)

17,300‌

319‌

Royalty

Pharma,

Class

A 

50,812‌

2,008‌

Supernus

Pharmaceuticals  (1)

6,900‌

246‌

TEVA

Pharm,

Rights,

2/20/23  (1)(2)(3)

81,200‌

—‌

Xeris

Biopharma

Holdings,

CVR  (1)(3)

36,100‌

15‌

10,512‌

Total

Health

Care

114,238‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

48

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

INDUSTRIALS

&

BUSINESS

SERVICES

15.8%

Aerospace

&

Defense

1.4%

Aerojet

Rocketdyne

Holdings  (1)

14,410‌

806‌

AeroVironment  (1)

3,900‌

334‌

Astra

Space  (1)(2)

222,300‌

96‌

Axon

Enterprise  (1)

9,879‌

1,639‌

BWX

Technologies 

13,037‌

757‌

Curtiss-Wright 

6,000‌

1,002‌

Ducommun  (1)

400‌

20‌

HEICO 

4,671‌

718‌

HEICO,

Class

A 

9,825‌

1,178‌

Hexcel 

10,100‌

594‌

Kaman 

9,933‌

222‌

Maxar

Technologies 

12,000‌

621‌

Mercury

Systems  (1)

7,900‌

353‌

Moog,

Class

A 

5,630‌

494‌

National

Presto

Industries 

4,400‌

301‌

Park

Aerospace 

15,200‌

204‌

Parsons  (1)

4,600‌

213‌

Spirit

AeroSystems

Holdings,

Class

A 

19,414‌

575‌

Triumph

Group  (1)

21,900‌

230‌

Triumph

Group,

Warrants,

12/19/23  (1)

6,570‌

4‌

V2X  (1)

2,879‌

119‌

Virgin

Galactic

Holdings  (1)(2)

33,000‌

115‌

Woodward 

7,000‌

676‌

11,271‌

Air

Freight

&

Logistics

0.3%

Air

Transport

Services

Group  (1)

12,200‌

317‌

Atlas

Air

Worldwide

Holdings  (1)

1,715‌

173‌

Forward

Air 

3,500‌

367‌

GXO

Logistics  (1)

19,300‌

824‌

Hub

Group,

Class

A  (1)

5,300‌

421‌

2,102‌

Airlines

0.1%

Allegiant

Travel  (1)

2,500‌

170‌

Frontier

Group

Holdings  (1)

9,000‌

93‌

JetBlue

Airways  (1)

37,100‌

240‌

Joby

Aviation  (1)(2)

54,700‌

183‌

SkyWest  (1)

2,530‌

42‌

Spirit

Airlines  (1)

16,900‌

329‌

Sun

Country

Airlines

Holdings  (1)

6,200‌

98‌

1,155‌

Building

Products

1.5%

AAON 

6,090‌

459‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

49

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Advanced

Drainage

Systems 

8,791‌

721‌

Alpha

Pro

Tech  (1)

16,000‌

64‌

Apogee

Enterprises 

3,152‌

140‌

Armstrong

World

Industries 

8,300‌

569‌

AZEK  (1)

11,506‌

234‌

Builders

FirstSource  (1)

21,608‌

1,402‌

Carlisle 

6,320‌

1,489‌

CSW

Industrials 

2,400‌

278‌

Fortune

Brands

Innovations 

14,113‌

806‌

Gibraltar

Industries  (1)

6,800‌

312‌

Griffon 

10,500‌

376‌

Hayward

Holdings  (1)(2)

13,400‌

126‌

JELD-WEN

Holding  (1)

11,900‌

115‌

Lennox

International 

4,603‌

1,101‌

Masonite

International  (1)

3,900‌

314‌

Owens

Corning 

13,900‌

1,186‌

PGT

Innovations  (1)

15,419‌

277‌

Resideo

Technologies  (1)

22,644‌

372‌

Simpson

Manufacturing 

5,600‌

497‌

Trex  (1)

18,200‌

770‌

UFP

Industries 

8,770‌

695‌

Zurn

Elkay

Water

Solutions 

19,800‌

419‌

12,722‌

Commercial

Services

&

Supplies

1.2%

ABM

Industries 

11,150‌

495‌

ACCO

Brands 

65,500‌

366‌

ACV

Auctions,

Class

A  (1)(2)

19,300‌

159‌

Aurora

Innovation  (1)

76,197‌

92‌

Brady,

Class

A 

9,500‌

447‌

Brink's 

7,749‌

416‌

Casella

Waste

Systems,

Class

A  (1)

7,375‌

585‌

Cimpress  (1)

3,800‌

105‌

Clean

Harbors  (1)

7,200‌

822‌

CoreCivic  (1)

24,596‌

284‌

Deluxe 

1,500‌

26‌

Ennis 

5,753‌

128‌

GEO

Group  (1)(2)

29,295‌

321‌

Harsco  (1)

24,760‌

156‌

Healthcare

Services

Group 

1,950‌

23‌

HNI 

5,580‌

159‌

IAA  (1)

20,800‌

832‌

Interface 

8,600‌

85‌

KAR

Auction

Services  (1)

20,400‌

266‌

Kimball

International,

Class

B 

32,590‌

212‌

Matthews

International,

Class

A 

800‌

24‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

50

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

MillerKnoll 

5,200‌

109‌

MSA

Safety 

5,500‌

793‌

Pitney

Bowes 

63,200‌

240‌

Quad/Graphics  (1)

32,100‌

131‌

Steelcase,

Class

A 

4,600‌

33‌

Stericycle  (1)

14,300‌

713‌

Tetra

Tech 

7,150‌

1,038‌

UniFirst 

2,811‌

543‌

Viad  (1)

6,125‌

149‌

9,752‌

Construction

&

Engineering

1.4%

AECOM 

20,122‌

1,709‌

Ameresco,

Class

A  (1)

5,200‌

297‌

API

Group  (1)

23,900‌

450‌

Arcosa 

6,887‌

374‌

Comfort

Systems

USA 

5,798‌

667‌

Construction

Partners,

Class

A  (1)

9,600‌

256‌

Dycom

Industries  (1)

4,963‌

464‌

EMCOR

Group 

8,060‌

1,194‌

Fluor  (1)

21,637‌

750‌

Granite

Construction 

9,314‌

327‌

MasTec  (1)

8,950‌

764‌

Matrix

Service  (1)

31,200‌

194‌

MDU

Resources

Group 

26,791‌

813‌

MYR

Group  (1)

1,800‌

166‌

Primoris

Services 

11,600‌

254‌

Sterling

Infrastructure  (1)

7,063‌

232‌

Valmont

Industries 

3,400‌

1,124‌

WillScot

Mobile

Mini

Holdings  (1)

33,237‌

1,501‌

11,536‌

Electrical

Equipment

1.5%

Acuity

Brands 

5,000‌

828‌

American

Superconductor  (1)

40,100‌

148‌

Array

Technologies  (1)(2)

26,500‌

512‌

Atkore  (1)

6,700‌

760‌

AZZ 

3,529‌

142‌

Blink

Charging  (1)(2)

9,300‌

102‌

Bloom

Energy,

Class

A  (1)

30,800‌

589‌

ChargePoint

Holdings  (1)(2)

15,755‌

150‌

Encore

Wire 

3,600‌

495‌

EnerSys 

4,800‌

354‌

Enovix  (1)(2)

18,800‌

234‌

FTC

Solar  (1)(2)

34,300‌

92‌

FuelCell

Energy  (1)(2)

51,600‌

144‌

GrafTech

International 

50,500‌

240‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

51

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Hubbell 

7,533‌

1,768‌

LSI

Industries 

18,793‌

230‌

nVent

Electric 

26,200‌

1,008‌

Plug

Power  (1)(2)

66,500‌

823‌

Regal

Rexnord 

8,547‌

1,026‌

Sensata

Technologies

Holding 

21,500‌

868‌

Shoals

Technologies

Group,

Class

A  (1)

21,446‌

529‌

Stem  (1)(2)

12,600‌

113‌

SunPower  (1)(2)

7,100‌

128‌

Sunrun  (1)

24,205‌

581‌

Sunworks  (1)(2)

50,900‌

80‌

Thermon

Group

Holdings  (1)

4,000‌

80‌

Vertiv

Holdings 

25,050‌

342‌

Vicor  (1)

4,000‌

215‌

12,581‌

Machinery

3.0%

3D

Systems  (1)

31,850‌

236‌

AGCO 

8,650‌

1,200‌

Alamo

Group 

2,700‌

382‌

Albany

International,

Class

A 

5,803‌

572‌

Allison

Transmission

Holdings 

7,141‌

297‌

Altra

Industrial

Motion 

11,000‌

657‌

Astec

Industries 

4,900‌

199‌

Barnes

Group 

6,200‌

253‌

Chart

Industries  (1)

5,151‌

594‌

Commercial

Vehicle

Group  (1)

25,000‌

170‌

Crane

Holdings 

6,841‌

687‌

Desktop

Metal,

Class

A  (1)(2)

50,600‌

69‌

Donaldson 

17,842‌

1,050‌

Douglas

Dynamics 

8,300‌

300‌

Enerpac

Tool

Group 

11,000‌

280‌

EnPro

Industries 

2,453‌

267‌

Esab 

8,014‌

376‌

ESCO

Technologies 

3,070‌

269‌

Evoqua

Water

Technologies  (1)

17,700‌

701‌

Federal

Signal 

10,700‌

497‌

Flowserve 

10,181‌

312‌

Franklin

Electric 

4,100‌

327‌

Graco 

20,198‌

1,359‌

Greenbrier 

6,800‌

228‌

Helios

Technologies 

6,000‌

327‌

Hillenbrand 

8,861‌

378‌

Hurco 

5,900‌

154‌

Hydrofarm

Holdings

Group  (1)

47,100‌

73‌

Hyliion

Holdings  (1)(2)

44,400‌

104‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

52

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Hyster-Yale

Materials

Handling 

7,200‌

182‌

ITT 

9,500‌

770‌

John

Bean

Technologies 

5,472‌

500‌

Kadant 

1,000‌

178‌

Kennametal 

4,200‌

101‌

Lincoln

Electric

Holdings 

7,037‌

1,017‌

Microvast

Holdings  (1)

100,400‌

154‌

Middleby  (1)

9,135‌

1,223‌

Mueller

Industries 

7,400‌

437‌

Mueller

Water

Products,

Class

A 

37,943‌

408‌

NN  (1)

41,800‌

63‌

Oshkosh 

7,600‌

670‌

Park-Ohio

Holdings 

5,400‌

66‌

Proterra  (1)(2)

31,700‌

120‌

Proto

Labs  (1)

7,900‌

202‌

RBC

Bearings  (1)

4,600‌

963‌

Shyft

Group 

8,300‌

206‌

SPX

Technologies  (1)

8,705‌

571‌

Tennant 

1,100‌

68‌

Terex 

10,200‌

436‌

Timken 

11,750‌

830‌

Titan

International  (1)

14,250‌

218‌

Toro 

17,127‌

1,939‌

Trinity

Industries 

9,658‌

286‌

Wabash

National 

12,400‌

280‌

Watts

Water

Technologies,

Class

A 

3,450‌

504‌

24,710‌

Marine

0.1%

Kirby (1)

10,300‌

663‌

Matson 

7,350‌

459‌

1,122‌

Professional

Services

1.8%

Alight,

Class

A  (1)

47,800‌

400‌

ASGN  (1)

7,150‌

583‌

Booz

Allen

Hamilton

Holding 

19,400‌

2,028‌

CACI

International,

Class

A  (1)

3,400‌

1,022‌

CBIZ  (1)

9,577‌

449‌

Clarivate  (1)

38,140‌

318‌

CRA

International 

1,873‌

229‌

Dun

&

Bradstreet

Holdings 

32,362‌

397‌

Exponent 

8,100‌

803‌

Forrester

Research  (1)

5,200‌

186‌

FTI

Consulting  (1)

5,695‌

904‌

Heidrick

&

Struggles

International 

6,558‌

183‌

Huron

Consulting

Group  (1)

2,760‌

200‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

53

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

ICF

International 

3,017‌

299‌

Insperity 

4,900‌

557‌

KBR 

21,600‌

1,140‌

Kforce 

3,228‌

177‌

Korn

Ferry 

9,100‌

461‌

ManpowerGroup 

7,142‌

594‌

Mastech

Digital  (1)

11,282‌

124‌

Science

Applications

International 

8,771‌

973‌

TransUnion 

31,493‌

1,787‌

TriNet

Group  (1)

4,200‌

285‌

TrueBlue  (1)

5,600‌

110‌

Upwork  (1)

20,600‌

215‌

Willdan

Group  (1)

7,200‌

128‌

14,552‌

Road

&

Rail

1.8%

ArcBest 

3,500‌

245‌

Avis

Budget

Group  (1)

4,151‌

680‌

Covenant

Logistics

Group 

6,100‌

211‌

Heartland

Express 

17,323‌

266‌

Hertz

Global

Holdings  (1)(2)

29,484‌

454‌

Knight-Swift

Transportation

Holdings 

24,292‌

1,273‌

Landstar

System 

5,400‌

880‌

Lyft,

Class

A  (1)

27,300‌

301‌

Marten

Transport 

8,800‌

174‌

RXO  (1)

15,500‌

267‌

Ryder

System 

5,075‌

424‌

Saia  (1)

4,400‌

923‌

TuSimple

Holdings,

Class

A  (1)

12,200‌

20‌

U.S.

Xpress

Enterprises,

Class

A  (1)

27,700‌

50‌

Uber

Technologies  (1)

282,867‌

6,995‌

U-Haul

Holding 

10,000‌

550‌

U-Haul

Holding  (2)

1,200‌

72‌

Werner

Enterprises 

7,353‌

296‌

XPO  (1)

15,500‌

516‌

Yellow  (1)

13,988‌

35‌

14,632‌

Trading

Companies

&

Distributors

1.7%

Air

Lease 

14,425‌

554‌

Applied

Industrial

Technologies 

5,644‌

711‌

Beacon

Roofing

Supply  (1)

6,100‌

322‌

BlueLinx

Holdings  (1)

2,100‌

149‌

Boise

Cascade 

7,500‌

515‌

Distribution

Solutions

Group  (1)

5,400‌

199‌

Ferguson 

29,744‌

3,777‌

GATX 

5,450‌

580‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

54

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

GMS  (1)

7,685‌

383‌

H&E

Equipment

Services 

4,526‌

206‌

Herc

Holdings 

3,855‌

507‌

McGrath

RentCorp 

4,300‌

425‌

MRC

Global  (1)

20,600‌

239‌

MSC

Industrial

Direct,

Class

A 

3,800‌

310‌

NOW  (1)

27,700‌

352‌

Rush

Enterprises,

Class

A 

5,011‌

262‌

SiteOne

Landscape

Supply  (1)

7,400‌

868‌

Titan

Machinery  (1)

6,900‌

274‌

Triton

International 

6,600‌

454‌

Univar

Solutions  (1)

24,300‌

773‌

Veritiv 

1,400‌

170‌

Watsco 

4,200‌

1,047‌

WESCO

International  (1)

6,258‌

784‌

Willis

Lease

Finance  (1)

3,600‌

212‌

14,073‌

Total

Industrials

&

Business

Services

130,208‌

INFORMATION

TECHNOLOGY

18.0%

Communications

Equipment

0.7%

CalAmp (1)

6,600‌

30‌

Calix  (1)

9,200‌

630‌

Ciena  (1)

18,900‌

963‌

Clearfield  (1)

2,865‌

270‌

CommScope

Holding  (1)

39,600‌

291‌

Comtech

Telecommunications 

16,187‌

196‌

Digi

International  (1)

9,977‌

365‌

Extreme

Networks  (1)

8,446‌

155‌

Infinera  (1)(2)

37,300‌

251‌

KVH

Industries  (1)

15,400‌

157‌

Lumentum

Holdings  (1)

11,260‌

587‌

NETGEAR  (1)

10,300‌

187‌

NetScout

Systems  (1)

9,400‌

306‌

Ribbon

Communications  (1)

65,300‌

182‌

Ubiquiti  (2)

552‌

151‌

Viasat  (1)

14,600‌

462‌

Viavi

Solutions  (1)

35,800‌

376‌

5,559‌

Electronic

Equipment,

Instruments

&

Components

1.9%

Advanced

Energy

Industries 

5,750‌

493‌

Aeva

Technologies  (1)

64,700‌

88‌

Arlo

Technologies  (1)

23,952‌

84‌

Arrow

Electronics  (1)

7,975‌

834‌

Avnet 

11,150‌

464‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

55

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Badger

Meter 

4,400‌

480‌

Belden 

6,763‌

486‌

Benchmark

Electronics 

5,799‌

155‌

Cognex 

25,700‌

1,211‌

Coherent  (1)

12,947‌

455‌

CTS 

7,158‌

282‌

ePlus  (1)

7,900‌

350‌

Fabrinet  (1)

6,000‌

769‌

FARO

Technologies  (1)

5,900‌

174‌

Insight

Enterprises  (1)

5,150‌

516‌

IPG

Photonics  (1)

4,400‌

417‌

Itron  (1)

6,200‌

314‌

Jabil 

17,100‌

1,166‌

Kimball

Electronics  (1)

10,770‌

243‌

Knowles  (1)

20,700‌

340‌

Lightwave

Logic  (1)(2)

21,200‌

91‌

Littelfuse 

4,139‌

911‌

Luna

Innovations  (1)

20,615‌

181‌

Methode

Electronics 

7,250‌

322‌

MicroVision  (1)(2)

42,600‌

100‌

National

Instruments 

18,225‌

673‌

Novanta  (1)

5,451‌

741‌

OSI

Systems  (1)

1,938‌

154‌

PC

Connection 

4,800‌

225‌

Plexus  (1)

4,260‌

439‌

Powerfleet  (1)

15,900‌

43‌

Rogers  (1)

2,650‌

316‌

Sanmina  (1)

9,900‌

567‌

ScanSource  (1)

8,500‌

248‌

TD

SYNNEX 

4,300‌

407‌

Velodyne

Lidar  (1)

109,900‌

81‌

Vishay

Intertechnology 

6,278‌

135‌

Vishay

Precision

Group  (1)

5,554‌

215‌

Vontier 

26,600‌

514‌

15,684‌

IT

Services

3.9%

Affirm

Holdings  (1)(2)

29,702‌

287‌

BigCommerce

Holdings,

Series

1  (1)

24,100‌

211‌

Block,

Class

A  (1)

74,047‌

4,653‌

Cloudflare,

Class

A  (1)

36,050‌

1,630‌

Concentrix 

6,200‌

825‌

Conduent  (1)

46,600‌

189‌

CSG

Systems

International 

7,000‌

400‌

Euronet

Worldwide  (1)

6,189‌

584‌

EVERTEC 

12,500‌

405‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

56

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Evo

Payments,

Class

A  (1)

9,000‌

304‌

ExlService

Holdings  (1)

5,400‌

915‌

Fastly,

Class

A  (1)(2)

20,000‌

164‌

Genpact 

18,800‌

871‌

GoDaddy,

Class

A  (1)

22,800‌

1,706‌

Grid

Dynamics

Holdings  (1)

9,400‌

105‌

Hackett

Group 

8,047‌

164‌

Innodata  (1)

17,300‌

51‌

Kratos

Defense

&

Security

Solutions  (1)

34,100‌

352‌

Kyndryl

Holdings  (1)

27,200‌

302‌

Marqeta,

Class

A  (1)

69,400‌

424‌

Maximus 

9,200‌

675‌

MoneyGram

International  (1)

17,700‌

193‌

MongoDB  (1)

11,200‌

2,205‌

Okta  (1)

21,174‌

1,447‌

Payoneer

Global  (1)

60,600‌

331‌

Perficient  (1)

5,700‌

398‌

Rackspace

Technology  (1)(2)

24,400‌

72‌

Sabre  (1)(2)

41,700‌

258‌

Shift4

Payments,

Class

A  (1)

8,200‌

459‌

Snowflake,

Class

A  (1)

40,725‌

5,846‌

SS&C

Technologies

Holdings 

32,540‌

1,694‌

TaskUS,

Class

A  (1)(2)

5,600‌

95‌

Toast,

Class

A  (1)

42,493‌

766‌

TTEC

Holdings 

2,590‌

114‌

Twilio,

Class

A  (1)

22,600‌

1,106‌

Unisys  (1)

20,000‌

102‌

Verra

Mobility  (1)

23,900‌

330‌

Western

Union 

36,513‌

503‌

WEX  (1)

5,889‌

964‌

WidePoint  (1)

20,700‌

38‌

32,138‌

Semiconductors

&

Semiconductor

Equipment

2.3%

ACM

Research,

Class

A  (1)

10,800‌

83‌

Allegro

MicroSystems  (1)

5,229‌

157‌

Alpha

&

Omega

Semiconductor  (1)

5,600‌

160‌

Ambarella  (1)

2,600‌

214‌

Amkor

Technology 

15,120‌

363‌

Atomera  (1)(2)

17,400‌

108‌

Axcelis

Technologies  (1)

1,995‌

158‌

Cirrus

Logic  (1)

8,740‌

651‌

Cohu  (1)

10,300‌

330‌

Diodes  (1)

5,950‌

453‌

Entegris 

20,977‌

1,376‌

FormFactor  (1)

13,200‌

293‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

57

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Impinj  (1)

3,800‌

415‌

Kopin  (1)(2)

81,900‌

102‌

Kulicke

&

Soffa

Industries 

10,700‌

474‌

Lattice

Semiconductor  (1)

20,100‌

1,304‌

MACOM

Technology

Solutions

Holdings  (1)

9,600‌

605‌

Marvell

Technology 

127,279‌

4,714‌

MaxLinear  (1)

11,870‌

403‌

Meta

Materials  (1)(2)

92,600‌

110‌

MKS

Instruments 

5,600‌

474‌

NVE 

3,600‌

233‌

Onto

Innovation  (1)

8,400‌

572‌

Photronics  (1)

7,450‌

125‌

Pixelworks  (1)(2)

62,300‌

110‌

Power

Integrations 

8,122‌

583‌

Rambus  (1)

19,200‌

688‌

Semtech  (1)

16,500‌

473‌

Silicon

Laboratories  (1)

6,100‌

828‌

SiTime  (1)

2,500‌

254‌

Synaptics  (1)

5,975‌

569‌

Universal

Display 

6,500‌

702‌

Wolfspeed  (1)(2)

17,200‌

1,188‌

19,272‌

Software

8.8%

8x8 (1)(2)

48,200‌

208‌

ACI

Worldwide  (1)

13,554‌

312‌

Adeia 

19,864‌

188‌

Agilysys  (1)

4,295‌

340‌

Alarm.com

Holdings  (1)

9,850‌

487‌

Altair

Engineering,

Class

A  (1)

8,111‌

369‌

Alteryx,

Class

A  (1)

5,500‌

279‌

Appfolio,

Class

A  (1)

2,266‌

239‌

Appian,

Class

A  (1)

10,300‌

335‌

AppLovin,

Class

A  (1)(2)

23,312‌

245‌

Asana,

Class

A  (1)(2)

5,898‌

81‌

Aspen

Technology  (1)

4,210‌

865‌

Asure

Software  (1)

27,700‌

259‌

Atlassian,

Class

A  (1)

21,352‌

2,748‌

Avaya

Holdings  (1)(2)

50,100‌

10‌

Benefitfocus  (1)

17,736‌

185‌

Bentley

Systems,

Class

B 

21,335‌

788‌

Bill.com

Holdings  (1)

13,700‌

1,493‌

Black

Knight  (1)

23,452‌

1,448‌

Blackbaud  (1)

8,700‌

512‌

Blackline  (1)

4,082‌

275‌

Box,

Class

A  (1)

24,800‌

772‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

58

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

C3.ai,

Class

A  (1)

10,200‌

114‌

Cerence  (1)

13,988‌

259‌

CommVault

Systems  (1)

5,300‌

333‌

Confluent,

Class

A  (1)

24,447‌

544‌

Consensus

Cloud

Solutions  (1)

1,967‌

106‌

Coupa

Software  (1)

13,400‌

1,061‌

Crowdstrike

Holdings,

Class

A  (1)

32,351‌

3,406‌

Datadog,

Class

A  (1)

36,300‌

2,668‌

Digimarc  (1)(2)

8,200‌

152‌

Digital

Turbine  (1)

16,200‌

247‌

DocuSign  (1)

30,001‌

1,663‌

Dolby

Laboratories,

Class

A 

9,140‌

645‌

Domo,

Class

B  (1)

7,700‌

110‌

Dropbox,

Class

A  (1)

43,148‌

966‌

Duck

Creek

Technologies  (1)

15,828‌

191‌

Dynatrace  (1)

24,073‌

922‌

E2open

Parent

Holdings  (1)(2)

42,200‌

248‌

Elastic  (1)

7,900‌

407‌

Envestnet  (1)

5,800‌

358‌

Everbridge  (1)

6,587‌

195‌

Fair

Isaac  (1)

3,885‌

2,325‌

Five9  (1)

9,410‌

638‌

Freshworks,

Class

A  (1)(2)

22,858‌

336‌

Gitlab,

Class

A  (1)(2)

8,200‌

373‌

Guidewire

Software  (1)

13,442‌

841‌

HashiCorp,

Class

A  (1)(2)

10,462‌

286‌

HubSpot  (1)

7,864‌

2,274‌

Intellicheck  (1)

19,500‌

39‌

InterDigital 

5,460‌

270‌

Jamf

Holding  (1)

10,900‌

232‌

KnowBe4,

Class

A  (1)

12,500‌

310‌

LivePerson  (1)

20,453‌

207‌

LiveRamp

Holdings  (1)

9,100‌

213‌

Manhattan

Associates  (1)

10,640‌

1,292‌

Marathon

Digital

Holdings  (1)(2)

12,400‌

42‌

Matterport  (1)(2)

71,000‌

199‌

MicroStrategy,

Class

A  (1)(2)

1,756‌

249‌

Mitek

Systems  (1)

18,497‌

179‌

Momentive

Global  (1)

29,300‌

205‌

N-able  (1)

18,150‌

187‌

nCino  (1)

12,431‌

329‌

NCR  (1)

8,667‌

203‌

New

Relic  (1)

5,800‌

327‌

Nutanix,

Class

A  (1)

24,650‌

642‌

Olo,

Class

A  (1)

18,700‌

117‌

ON24  (1)

27,500‌

237‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

59

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

PagerDuty  (1)

18,300‌

486‌

Palantir

Technologies,

Class

A  (1)

219,300‌

1,408‌

Palo

Alto

Networks  (1)

43,050‌

6,007‌

Paylocity

Holding  (1)

5,900‌

1,146‌

Pegasystems 

2,300‌

79‌

Procore

Technologies  (1)

11,807‌

557‌

Progress

Software 

6,200‌

313‌

PROS

Holdings  (1)

9,200‌

223‌

Q2

Holdings  (1)

10,900‌

293‌

Qualtrics

International,

Class

A  (1)

24,884‌

258‌

Qualys  (1)

4,500‌

505‌

Rapid7  (1)

8,404‌

285‌

RingCentral,

Class

A  (1)

7,900‌

280‌

Riot

Blockchain  (1)(2)

13,700‌

46‌

SentinelOne,

Class

A  (1)

39,948‌

583‌

Smartsheet,

Class

A  (1)

19,436‌

765‌

SolarWinds  (1)

18,150‌

170‌

Splunk  (1)

21,441‌

1,846‌

Sprout

Social,

Class

A  (1)(2)

8,400‌

474‌

SPS

Commerce  (1)

5,300‌

681‌

Sumo

Logic  (1)

15,316‌

124‌

Telos  (1)

15,806‌

80‌

Tenable

Holdings  (1)

15,964‌

609‌

Teradata  (1)

10,451‌

352‌

UiPath,

Class

A  (1)

49,711‌

632‌

Unity

Software  (1)

28,900‌

826‌

Varonis

Systems  (1)

6,000‌

144‌

Verint

Systems  (1)

13,400‌

486‌

Veritone  (1)

15,800‌

84‌

Vertex,

Class

A  (1)

16,530‌

240‌

VirnetX

Holding  (1)

48,700‌

63‌

VMware,

Class

A  (1)

28,664‌

3,519‌

Workday,

Class

A  (1)

30,177‌

5,049‌

Workiva  (1)

7,410‌

622‌

Xperi  (1)

8,585‌

74‌

Zoom

Video

Communications,

Class

A  (1)

32,450‌

2,198‌

Zscaler  (1)

11,157‌

1,248‌

Zuora,

Class

A  (1)

36,900‌

235‌

72,575‌

Technology

Hardware,

Storage

&

Peripherals

0.4%

Dell

Technologies,

Class

C 

30,497‌

1,227‌

Diebold

Nixdorf  (1)

17,800‌

25‌

Eastman

Kodak  (1)

19,000‌

58‌

Immersion  (1)

20,635‌

145‌

Intevac  (1)

26,100‌

169‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

60

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Pure

Storage,

Class

A  (1)

40,300‌

1,078‌

Quantum  (1)(2)

74,600‌

81‌

Super

Micro

Computer  (1)

5,500‌

452‌

Turtle

Beach  (1)(2)

12,400‌

89‌

Xerox

Holdings 

13,400‌

196‌

3,520‌

Total

Information

Technology

148,748‌

MATERIALS

4.3%

Chemicals

1.8%

American

Vanguard 

12,466‌

271‌

Amyris  (1)(2)

30,500‌

47‌

Ashland 

6,100‌

656‌

Avient 

14,230‌

480‌

Axalta

Coating

Systems  (1)

21,626‌

551‌

Balchem 

5,300‌

647‌

Cabot 

9,350‌

625‌

Chase 

1,650‌

142‌

Chemours 

22,400‌

686‌

Ecovyst  (1)

26,100‌

231‌

Element

Solutions 

29,300‌

533‌

Ginkgo

Bioworks

Holdings  (1)

152,333‌

258‌

HB

Fuller 

6,940‌

497‌

Huntsman 

30,000‌

824‌

Ingevity  (1)

7,700‌

542‌

Innospec 

4,700‌

484‌

Koppers

Holdings 

7,200‌

203‌

Livent  (1)

29,700‌

590‌

Minerals

Technologies 

2,410‌

146‌

NewMarket 

1,000‌

311‌

Olin 

18,230‌

965‌

PureCycle

Technologies  (1)(2)

23,200‌

157‌

Quaker

Chemical  (2)

2,500‌

417‌

RPM

International 

19,400‌

1,891‌

Scotts

Miracle-Gro  (2)

7,949‌

386‌

Sensient

Technologies 

2,880‌

210‌

Stepan 

3,100‌

330‌

Trinseo 

6,900‌

157‌

Tronox

Holdings,

Class

A 

17,600‌

241‌

Valvoline 

26,587‌

868‌

Westlake 

4,842‌

497‌

14,843‌

Construction

Materials

0.2%

Eagle

Materials 

6,314‌

839‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

61

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Summit

Materials,

Class

A  (1)

21,247‌

603‌

1,442‌

Containers

&

Packaging

0.8%

AptarGroup 

8,870‌

976‌

Berry

Global

Group 

17,800‌

1,076‌

Crown

Holdings 

18,920‌

1,555‌

Graphic

Packaging

Holding 

39,730‌

884‌

Greif,

Class

A 

5,200‌

349‌

Myers

Industries 

11,416‌

254‌

O-I

Glass  (1)

29,500‌

489‌

Silgan

Holdings 

7,240‌

375‌

Sonoco

Products 

9,573‌

581‌

TriMas 

7,800‌

216‌

6,755‌

Metals

&

Mining

1.4%

Alcoa 

19,546‌

889‌

Alpha

Metallurgical

Resources 

1,758‌

257‌

Ampco-Pittsburgh  (1)

21,600‌

54‌

Arconic  (1)

15,300‌

324‌

ATI  (1)

12,300‌

367‌

Carpenter

Technology 

8,700‌

321‌

Century

Aluminum  (1)

7,258‌

59‌

Cleveland-Cliffs  (1)

72,980‌

1,176‌

Coeur

Mining  (1)

43,900‌

147‌

Commercial

Metals 

14,100‌

681‌

Compass

Minerals

International 

4,600‌

189‌

Gold

Resource 

84,700‌

130‌

Haynes

International 

3,897‌

178‌

Hecla

Mining 

85,000‌

473‌

Kaiser

Aluminum 

1,236‌

94‌

Materion 

2,600‌

227‌

MP

Materials  (1)

10,800‌

262‌

Olympic

Steel 

5,252‌

176‌

Piedmont

Lithium  (1)

3,000‌

132‌

Reliance

Steel

&

Aluminum 

9,810‌

1,986‌

Royal

Gold 

10,379‌

1,170‌

Ryerson

Holding 

6,200‌

188‌

Schnitzer

Steel

Industries,

Class

A 

7,200‌

221‌

TimkenSteel  (1)

10,000‌

182‌

United

States

Steel 

33,200‌

832‌

Warrior

Met

Coal 

9,400‌

326‌

Worthington

Industries 

5,863‌

291‌

11,332‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

62

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Paper

&

Forest

Products

0.1%

Clearwater

Paper  (1)

7,288‌

276‌

Glatfelter 

45,378‌

126‌

Louisiana-Pacific 

10,900‌

645‌

Sylvamo 

4,400‌

214‌

1,261‌

Total

Materials

35,633‌

REAL

ESTATE

6.5%

Equity

Real

Estate

Investment

Trusts

5.9%

Acadia

Realty

Trust,

REIT 

21,179‌

304‌

Agree

Realty,

REIT 

8,700‌

617‌

Alexander's,

REIT 

330‌

73‌

American

Homes

4

Rent,

Class

A,

REIT 

48,563‌

1,464‌

Americold

Realty

Trust,

REIT 

29,324‌

830‌

Apartment

Income

REIT,

REIT 

25,924‌

889‌

Apartment

Investment

&

Management,

Class

A,

REIT 

41,458‌

295‌

Apple

Hospitality

REIT,

REIT 

38,200‌

603‌

Bluerock

Homes

Trust  (1)

6,174‌

132‌

Brandywine

Realty

Trust,

REIT 

25,043‌

154‌

Brixmor

Property

Group,

REIT 

44,200‌

1,002‌

Broadstone

Net

Lease,

REIT 

26,596‌

431‌

CareTrust

REIT,

REIT 

15,976‌

297‌

Centerspace,

REIT 

3,200‌

188‌

Community

Healthcare

Trust,

REIT 

7,300‌

261‌

Corporate

Office

Properties

Trust,

REIT 

22,100‌

573‌

Cousins

Properties,

REIT 

13,531‌

342‌

CubeSmart,

REIT 

37,281‌

1,501‌

DiamondRock

Hospitality,

REIT 

30,600‌

251‌

Diversified

Healthcare

Trust,

REIT 

201,500‌

130‌

Douglas

Emmett,

REIT 

24,962‌

391‌

Easterly

Government

Properties,

REIT 

14,986‌

214‌

EastGroup

Properties,

REIT 

6,896‌

1,021‌

Elme

Communities,

REIT 

700‌

12‌

Empire

State

Realty

Trust,

Class

A,

REIT 

43,700‌

295‌

EPR

Properties,

REIT 

12,300‌

464‌

Equity

Commonwealth,

REIT 

7,176‌

179‌

Equity

LifeStyle

Properties,

REIT 

29,002‌

1,874‌

Essential

Properties

Realty

Trust,

REIT 

19,300‌

453‌

First

Industrial

Realty

Trust,

REIT 

14,465‌

698‌

Four

Corners

Property

Trust,

REIT 

6,401‌

166‌

Franklin

Street

Properties,

REIT 

73,909‌

202‌

Gaming

&

Leisure

Properties,

REIT 

31,684‌

1,650‌

Getty

Realty,

REIT  (2)

11,643‌

394‌

Gladstone

Commercial,

REIT 

12,182‌

225‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

63

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Gladstone

Land,

REIT 

11,109‌

204‌

Global

Self

Storage,

REIT 

33,399‌

163‌

Healthcare

Realty

Trust,

REIT 

40,919‌

789‌

Hersha

Hospitality

Trust,

Class

A,

REIT 

22,600‌

193‌

Highwoods

Properties,

REIT 

6,094‌

171‌

Hudson

Pacific

Properties,

REIT 

20,600‌

200‌

Independence

Realty

Trust,

REIT 

17,706‌

299‌

Innovative

Industrial

Properties,

REIT 

5,000‌

507‌

JBG

SMITH

Properties,

REIT 

22,300‌

423‌

Kilroy

Realty,

REIT 

11,320‌

438‌

Kite

Realty

Group

Trust,

REIT 

26,421‌

556‌

Lamar

Advertising,

Class

A,

REIT 

11,592‌

1,094‌

Life

Storage,

REIT 

9,900‌

975‌

LTC

Properties,

REIT 

11,016‌

391‌

LXP

Industrial

Trust,

REIT 

37,929‌

380‌

Macerich,

REIT 

28,457‌

320‌

Medical

Properties

Trust,

REIT  (2)

63,322‌

705‌

National

Health

Investors,

REIT 

5,820‌

304‌

National

Retail

Properties,

REIT 

24,030‌

1,100‌

National

Storage

Affiliates

Trust,

REIT 

10,800‌

390‌

Necessity

Retail

REIT,

REIT 

38,714‌

230‌

Office

Properties

Income

Trust,

REIT 

15,841‌

211‌

Omega

Healthcare

Investors,

REIT 

34,569‌

966‌

Outfront

Media,

REIT 

15,700‌

260‌

Paramount

Group,

REIT 

28,200‌

168‌

Park

Hotels

&

Resorts,

REIT 

13,800‌

163‌

Pebblebrook

Hotel

Trust,

REIT 

29,661‌

397‌

Phillips

Edison,

REIT 

8,821‌

281‌

Physicians

Realty

Trust,

REIT 

24,900‌

360‌

Piedmont

Office

Realty

Trust,

Class

A,

REIT 

17,700‌

162‌

Postal

Realty

Trust,

Class

A,

REIT 

11,400‌

166‌

PotlatchDeltic,

REIT 

10,059‌

443‌

Rayonier,

REIT 

24,151‌

796‌

Rexford

Industrial

Realty,

REIT 

30,289‌

1,655‌

RLJ

Lodging

Trust,

REIT 

32,700‌

346‌

RPT

Realty,

REIT 

23,934‌

240‌

Ryman

Hospitality

Properties,

REIT 

8,026‌

656‌

Sabra

Health

Care

REIT,

REIT 

12,369‌

154‌

Safehold,

REIT  (2)

8,208‌

235‌

Saul

Centers,

REIT 

6,819‌

277‌

Service

Properties

Trust,

REIT 

14,100‌

103‌

SITE

Centers,

REIT 

33,900‌

463‌

SL

Green

Realty,

REIT  (2)

10,988‌

371‌

Spirit

Realty

Capital,

REIT 

22,360‌

893‌

STAG

Industrial,

REIT 

28,100‌

908‌

STORE

Capital,

REIT 

40,900‌

1,311‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

64

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Summit

Hotel

Properties,

REIT 

30,400‌

219‌

Sun

Communities,

REIT 

19,150‌

2,738‌

Sunstone

Hotel

Investors,

REIT 

7,794‌

75‌

Tanger

Factory

Outlet

Centers,

REIT 

16,700‌

300‌

Terreno

Realty,

REIT 

13,625‌

775‌

UMH

Properties,

REIT 

15,372‌

248‌

Uniti

Group,

REIT 

35,100‌

194‌

Universal

Health

Realty

Income

Trust,

REIT 

2,550‌

122‌

Urban

Edge

Properties,

REIT 

26,700‌

376‌

Urstadt

Biddle

Properties,

Class

A,

REIT 

11,896‌

225‌

Veris

Residential,

REIT  (1)

20,200‌

322‌

WP

Carey,

REIT 

30,015‌

2,346‌

Xenia

Hotels

&

Resorts,

REIT 

25,900‌

341‌

48,673‌

Real

Estate

Management

&

Development

0.6%

Altisource

Portfolio

Solutions  (1)(2)

6,100‌

58‌

Anywhere

Real

Estate  (1)

21,100‌

135‌

Cushman

&

Wakefield  (1)(2)

18,600‌

232‌

DigitalBridge

Group 

24,300‌

266‌

Douglas

Elliman 

51,941‌

211‌

eXp

World

Holdings  (2)

15,400‌

171‌

FRP

Holdings  (1)

4,700‌

253‌

Howard

Hughes  (1)

2,800‌

214‌

Jones

Lang

LaSalle  (1)

6,910‌

1,101‌

Kennedy-Wilson

Holdings 

20,200‌

318‌

Newmark

Group,

Class

A 

25,804‌

206‌

Opendoor

Technologies,

Class

A  (1)(2)

74,600‌

86‌

Rafael

Holdings,

Class

B  (1)

29,321‌

55‌

Redfin  (1)(2)

19,500‌

83‌

Seritage

Growth

Properties,

Class

A,

REIT  (1)(2)

19,400‌

229‌

Tejon

Ranch  (1)

10,320‌

194‌

Zillow

Group,

Class

A  (1)

5,741‌

179‌

Zillow

Group,

Class

C  (1)

19,118‌

616‌

4,607‌

Total

Real

Estate

53,280‌

UTILITIES

2.2%

Electric

Utilities

0.7%

ALLETE 

7,182‌

463‌

Avangrid 

6,600‌

284‌

Genie

Energy,

Class

B 

17,602‌

182‌

Hawaiian

Electric

Industries 

14,731‌

616‌

IDACORP 

7,938‌

856‌

MGE

Energy 

7,155‌

504‌

OGE

Energy 

27,600‌

1,092‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

65

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

Otter

Tail 

6,850‌

402‌

PNM

Resources 

7,219‌

352‌

Portland

General

Electric 

10,300‌

505‌

Via

Renewables  (2)

31,600‌

161‌

5,417‌

Gas

Utilities

0.6%

Chesapeake

Utilities 

3,700‌

437‌

National

Fuel

Gas 

14,292‌

905‌

New

Jersey

Resources 

16,150‌

802‌

Northwest

Natural

Holding 

7,490‌

357‌

ONE

Gas 

8,800‌

666‌

RGC

Resources 

8,179‌

180‌

South

Jersey

Industries 

11,340‌

403‌

Southwest

Gas

Holdings 

8,100‌

501‌

Spire 

3,810‌

262‌

UGI 

23,090‌

856‌

5,369‌

Independent

Power

&

Renewable

Electricity

Producers

0.3%

Clearway

Energy,

Class

C 

7,693‌

245‌

Montauk

Renewables  (1)(2)

16,200‌

179‌

Ormat

Technologies 

6,200‌

536‌

Sunnova

Energy

International  (1)(2)

7,400‌

133‌

Vistra 

58,128‌

1,349‌

2,442‌

Multi-Utilities

0.2%

Avista 

10,890‌

483‌

Black

Hills 

8,140‌

573‌

NorthWestern 

8,500‌

504‌

Unitil 

5,119‌

263‌

1,823‌

Water

Utilities

0.4%

American

States

Water 

6,025‌

557‌

California

Water

Service

Group 

9,650‌

585‌

Essential

Utilities 

32,032‌

1,529‌

Middlesex

Water 

3,800‌

299‌

SJW

Group 

4,960‌

403‌

3,373‌

Total

Utilities

18,424‌

Total

Common

Stocks

(Cost

$612,177)

821,476‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

66

Shares/Par

$

Value

(Cost

and

value

in

$000s)

‡

SHORT-TERM

INVESTMENTS

0.6%

Money

Market

Funds

0.5%

T.

Rowe

Price

Government

Reserve

Fund,

4.30%  (4)(5)

4,226,990‌

4,227‌

4,227‌

U.S.

Treasury

Obligations

0.1%

U.S.

Treasury

Bills,

3.279%,

2/16/23  (6)

330,000‌

328‌

328‌

Total

Short-Term

Investments

(Cost

$4,556)

4,555‌

SECURITIES

LENDING

COLLATERAL

3.4%

INVESTMENTS

IN

A

POOLED

ACCOUNT

THROUGH

SECURITIES

LENDING

PROGRAM

WITH

STATE

STREET

BANK

AND

TRUST

COMPANY

3.4%

Money

Market

Funds

3.4%

T.

Rowe

Price

Government

Reserve

Fund,

4.30%  (4)(5)

28,083,740‌

28,084‌

Total

Investments

in

a

Pooled

Account

through

Securities

Lending

Program

with

State

Street

Bank

and

Trust

Company

28,084‌

Total

Securities

Lending

Collateral

(Cost

$28,084)

28,084‌

Total

Investments

in

Securities

103.4%

of

Net

Assets

(Cost

$644,817)

$

854,115‌

‡

Shares/Par

and

Notional

Amount

are

denominated

in

U.S.

dollars

unless

otherwise

noted.

(1)

Non-income

producing

(2)

See

Note

4

.

All

or

a

portion

of

this

security

is

on

loan

at

December

31,

2022.

(3)

See

Note

2.

Level

3

in

fair

value

hierarchy.

(4)

Seven-day

yield

(5)

Affiliated

Companies

(6)

At

December

31,

2022,

all

or

a

portion

of

this

security

is

pledged

as

collateral

and/or

margin

deposit

to

cover

future

funding

obligations.

CVR

Contingent

Value

Rights

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

67

FUTURES

CONTRACTS

($000s)

Expiration

Date

Notional

Amount

Value

and

Unrealized

Gain

(Loss)

Long,

42

Russell

2000

E-Mini

Index

contracts

3/23

3,719

$

(108‌)

Long,

5

S&P

MidCap

400

E-Mini

Index

contracts

3/23

1,221

(36‌)

Net

payments

(receipts)

of

variation

margin

to

date

124‌

Variation

margin

receivable

(payable)

on

open

futures

contracts

$

(20‌)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

68

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

year

ended

December

31,

2022.

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,

4.30%

$

—‌

$

—‌

$

60‌++

Totals

$

—‌#

$

—‌

$

60‌+

Supplementary

Investment

Schedule

Affiliate

Value

12/31/21

Purchase

Cost

Sales

Cost

Value

12/31/22

T.

Rowe

Price

Government

Reserve

Fund,

4.30%

$

42,645‌

 ¤

  ¤

$

32,311‌

Total

$

32,311‌^

#

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

$60

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

$32,311.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

December

31,

2022

Statement

of

Assets

and

Liabilities

69

($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

$644,817)

$

854,115‌

Dividends

receivable

896‌

Receivable

for

shares

sold

397‌

Receivable

for

investment

securities

sold

15‌

Cash

4‌

Other

assets

110‌

Total

assets

855,537‌

Liabilities

Obligation

to

return

securities

lending

collateral

28,084‌

Payable

for

shares

redeemed

701‌

Payable

for

investment

securities

purchased

248‌

Due

to

affiliates

75‌

Investment

management

fees

payable

65‌

Variation

margin

payable

on

futures

contracts

20‌

Payable

to

directors

1‌

Other

liabilities

143‌

Total

liabilities

29,337‌

NET

ASSETS

$

826,200‌

Net

Assets

Consist

of:

Total

distributable

earnings

(loss)

$

209,673‌

Paid-in

capital

applicable

to

33,156,215

shares

of

$0.0001

par

value

capital

stock

outstanding;

2,000,000,000

shares

of

the

Corporation

authorized

616,527‌

NET

ASSETS

$

826,200‌

NET

ASSET

VALUE

PER

SHARE

$

24.92‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

Statement

of

Operations

70

($000s)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Year

Ended

12/31/22

Investment

Income

(Loss)

Income

Dividend

(net

of

foreign

taxes

of

$6)

$

11,252‌

Securities

lending

851‌

    Interest

5‌

Total

income

12,108‌

Expenses

Investment

management

869‌

Shareholder

servicing

1,253‌

Prospectus

and

shareholder

reports

65‌

Custody

and

accounting

212‌

Registration

60‌

Legal

and

audit

26‌

Directors

3‌

Miscellaneous

4‌

Waived

/

paid

by

Price

Associates

(84‌)

Total

expenses

2,408‌

Net

investment

income

9,700‌

Realized

and

Unrealized

Gain

/

Loss

–

Net

realized

gain

(loss)

Securities

29,100‌

Futures

(1,006‌)

Net

realized

gain

28,094‌

Change

in

net

unrealized

gain

/

loss

Securities

(357,662‌)

Futures

(226‌)

Change

in

net

unrealized

gain

/

loss

(357,888‌)

Net

realized

and

unrealized

gain

/

loss

(329,794‌)

DECREASE

IN

NET

ASSETS

FROM

OPERATIONS

$

(320,094‌)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

Statement

of

Changes

in

Net

Assets

71

($000s)

The

accompanying

notes

are

an

integral

part

of

these

financial

statements.

Year

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

Ended

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

12/31/22

12/31/21

Increase

(Decrease)

in

Net

Assets

Operations

Net

investment

income

$

9,700‌

$

9,106‌

Net

realized

gain

28,094‌

123,240‌

Change

in

net

unrealized

gain

/

loss

(357,888‌)

12,792‌

Increase

(decrease)

in

net

assets

from

operations

(320,094‌)

145,138‌

Distributions

to

shareholders

Net

earnings

(58,443‌)

(169,342‌)

Capital

share

transactions

*

Shares

sold

91,467‌

459,844‌

Distributions

reinvested

53,971‌

154,859‌

Shares

redeemed

(222,081‌)

(470,577‌)

Increase

(decrease)

in

net

assets

from

capital

share

transactions

(76,643‌)

144,126‌

Net

Assets

Increase

(decrease)

during

period

(455,180‌)

119,922‌

Beginning

of

period

1,281,380‌

1,161,458‌

End

of

period

$

826,200‌

$

1,281,380‌

*Share

information

(000s)

Shares

sold

3,134‌

11,326‌

Distributions

reinvested

2,138‌

4,382‌

Shares

redeemed

(7,535‌)

(11,575‌)

Increase

(decrease)

in

shares

outstanding

(2,263‌)

4,133‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

NOTES

TO

FINANCIAL

STATEMENTS

72

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

mutual

fund

investments

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

73

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.

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PRICE

Extended

Equity

Market

Index

Fund

74

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.

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PRICE

Extended

Equity

Market

Index

Fund

75

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.

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Fund

76

Valuation

Inputs

  The

following

table

summarizes

the

fund’s

financial

instruments,

based

on

the

inputs

used

to

determine

their

fair

values

on

December

31,

2022

(for

further

detail

by

category,

please

refer

to

the

accompanying

Portfolio

of

Investments):

NOTE

3

-

DERIVATIVE

INSTRUMENTS 

During

the

year ended

December

31,

2022,

the

fund

invested

in

derivative

instruments.

As

defined

by

GAAP,

a

derivative

is

a

financial

instrument

whose

value

is

derived

from

an

underlying

security

price,

foreign

exchange

rate,

interest

rate,

index

of

prices

or

rates,

or

other

variable;

it

requires

little

or

no

initial

investment

and

permits

or

requires

net

settlement.

The

fund

invests

in

derivatives

only

if

the

expected

risks

and

rewards

are

consistent

with

its

investment

objectives,

policies,

and

overall

risk

profile,

as

described

in

its

prospectus

and

Statement

of

Additional

Information.

The

fund

may

use

derivatives

for

a

variety

of

purposes

and

may

use

them

to

establish

both

long

and

short

positions

within

the

fund’s

portfolio.

Potential

uses

include

to

hedge

against

declines

in

principal

value,

increase

yield,

invest

in

an

asset

with

greater

efficiency

and

at

a

lower

cost

than

is

possible

through

direct

investment,

to

enhance

return,

or

to

adjust

credit

exposure.

The

risks

associated

with

the

use

of

derivatives

are

different

from,

and

potentially

much

greater

than,

the

risks

associated

with

investing

directly

in

the

instruments

on

which

the

derivatives

are

based.

($000s)

Level

1

Level

2

Level

3

Total

Value

Assets

Common

Stocks

$

821,455‌

$

1‌

$

20‌

$

821,476‌

Short-Term

Investments

4,227‌

328‌

—‌

4,555‌

Securities

Lending

Collateral

28,084‌

—‌

—‌

28,084‌

Total

$

853,766‌

$

329‌

$

20‌

$

854,115‌

Liabilities

Futures

Contracts*

$

144‌

$

—‌

$

—‌

$

144‌

*

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.

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Index

Fund

77

The

fund

values

its

derivatives

at

fair

value

and

recognizes

changes

in

fair

value

currently

in

its

results

of

operations.

Accordingly,

the

fund

does

not

follow

hedge

accounting,

even

for

derivatives

employed

as

economic

hedges.

Generally,

the

fund

accounts

for

its

derivatives

on

a

gross

basis.

It

does

not

offset

the

fair

value

of

derivative

liabilities

against

the

fair

value

of

derivative

assets

on

its

financial

statements,

nor

does

it

offset

the

fair

value

of

derivative

instruments

against

the

right

to

reclaim

or

obligation

to

return

collateral.

The

following

table

summarizes

the

fair

value

of

the

fund’s

derivative

instruments

held

as

of

December

31,

2022,

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

year ended

December

31,

2022,

and

the

related

location

on

the

accompanying

Statement

of

Operations

is

summarized

in

the

following

table

by

primary

underlying

risk

exposure: 

($000s)

Location

on

Statement

of

Assets

and

Liabilities

Fair

Value*

*

Liabilities

Equity

derivatives

Futures

$

144‌

Total

$

144‌

*

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

$

(1,006‌)

Total

$

(1,006‌)

T.

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Extended

Equity

Market

Index

Fund

78

Counterparty

Risk

and

Collateral

 The

fund

invests

in

exchange-traded

and/or

centrally

cleared

derivative

contracts,

such

as

futures,

exchange-traded

options,

and

centrally

cleared

swaps.

Counterparty

risk

on

such

derivatives

is

minimal

because

the

clearinghouse

provides

protection

against

counterparty

defaults.

For

futures

and

centrally

cleared

swaps,

the

fund

is

required

to

deposit

collateral

in

an

amount

specified

by

the

clearinghouse

and

the

clearing

firm

(margin

requirement),

and

the

margin

requirement

must

be

maintained

over

the

life

of

the

contract.

Each

clearinghouse

and

clearing

firm,

in

its

sole

discretion,

may

adjust

the

margin

requirements

applicable

to

the

fund.

Collateral may

be

in

the

form

of

cash

or

debt

securities

issued

by

the

U.S.

government

or

related

agencies.

Cash

posted

by

the

fund

is

reflected

as

cash

deposits

in

the

accompanying

financial

statements

and

generally

is

restricted

from

withdrawal

by

the

fund;

securities

posted

by

the

fund

are

so

noted

in

the

accompanying

Portfolio

of

Investments;

both

remain

in

the

fund’s

assets.

While

typically

not

sold

in

the

same

manner

as

equity

or

fixed

income

securities,

exchange-traded

or

centrally

cleared

derivatives

may

be

closed

out

only

on

the

exchange

or

clearinghouse

where

the

contracts

were

cleared.

This

ability

is

subject

to

the

liquidity

of

underlying

positions. As

of

December

31,

2022,

securities

valued

at $320,000

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

($000s)                                                

Location

of

Gain

(Loss)

on

Statement

of

Operations

Futures

Change

in

Unrealized

Gain

(Loss)

Equity

derivatives

$

(226‌)

Total

$

(226‌)

T.

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PRICE

Extended

Equity

Market

Index

Fund

79

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

year ended

December

31,

2022,

the

volume

of

the

fund’s

activity

in

futures,

based

on

underlying

notional

amounts,

was

generally

less

than

1%

of

net

assets.

NOTE

4

-

OTHER

INVESTMENT

TRANSACTIONS 

Consistent

with

its

investment

objective,

the

fund

engages

in

the

following

practices

to

manage

exposure

to

certain

risks

and/or

to

enhance

performance.

The

investment

objective,

policies,

program,

and

risk

factors

of

the

fund

are

described

more

fully

in

the

fund’s

prospectus

and

Statement

of

Additional

Information.

Securities

Lending

 The fund

may

lend

its

securities

to

approved

borrowers

to

earn

additional

income.

Its

securities

lending

activities

are

administered

by

a

lending

agent

in

accordance

with

a

securities

lending

agreement.

Security

loans

generally

do

not

have

stated

maturity

dates,

and

the

fund

may

recall

a

security

at

any

time.

The

fund

receives

collateral

in

the

form

of

cash

or

U.S.

government

securities.

Collateral

is

maintained

over

the

life

of

the

loan

in

an

amount

not

less

than

the

value

of

loaned

securities;

any

additional

collateral

required

due

to

changes

in

security

values

is

delivered

to

the

fund

the

next

business

day.

Cash

collateral

is

invested

in

accordance

with

investment

guidelines

approved

by

fund

management.

Additionally,

the

lending

agent

indemnifies

the

fund

against

losses

resulting

from

borrower

default.

Although

risk

is

mitigated

by

the

collateral

and

indemnification,

the

fund

could

experience

a

delay

in

recovering

its

securities

and

a

possible

loss

of

income

or

value

if

the

borrower

fails

to

return

the

securities,

collateral

investments

decline

in

value,

and

the

lending

agent

fails

to

perform.

Securities

lending

revenue

consists

of

earnings

on

invested

collateral

and

borrowing

fees,

net

of

any

rebates

to

the

borrower,

compensation

to

the

lending

agent,

and

other

administrative

costs.

In

accordance

with

GAAP,

investments

made

with

cash

collateral

are

reflected

in

the

accompanying

financial

statements,

but

collateral

received

in

the

form

of

securities

is

not.

At

December

31,

2022,

the

value

of

loaned

securities

was

$26,900,000;

the

value

of

cash

collateral

and

related

investments

was

$28,084,000.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

80

Other

Purchases

and

sales

of

portfolio

securities

other

than

short-term securities

aggregated $133,103,000 and

$256,493,000,

respectively,

for

the

year ended

December

31,

2022.

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.

The fund

files

U.S.

federal,

state,

and

local

tax

returns

as

required. The

fund’s

tax

returns

are

subject

to

examination

by

the

relevant

tax

authorities

until

expiration

of

the

applicable

statute

of

limitations,

which

is

generally

three

years

after

the

filing

of

the

tax

return

but

which

can

be

extended

to

six

years

in

certain

circumstances.

Tax

returns

for

open

years

have

incorporated

no

uncertain

tax

positions

that

require

a

provision

for

income

taxes.

Capital

accounts

within

the

financial

reporting

records

are

adjusted

for

permanent

book/

tax

differences

to

reflect

tax

character

but

are

not

adjusted

for

temporary

differences.

The

permanent

book/tax

adjustments,

if

any,

have

no

impact

on

results

of

operations

or

net

assets.

The

permanent

book/tax

adjustments

relate

primarily

to

deemed

distributions

on

shareholder

redemptions.

The

tax

character

of

distributions

paid

for

the

periods

presented

was

as

follows:

($000s)

December

31,

2022

December

31,

2021

Ordinary

income

(including

short-term

capital

gains,

if

any)

$

10,637‌

$

8,499‌

Long-term

capital

gain

47,806‌

160,843‌

Total

distributions

$

58,443‌

$

169,342‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

81

At

December

31,

2022,

the

tax-basis

cost

of

investments

(including

derivatives,

if

any)

and

gross

unrealized

appreciation

and

depreciation

were

as

follows:

At

December

31,

2022,

the

tax-basis

components

of

accumulated

net

earnings

(loss)

were

as

follows:

Temporary

differences

between

book-basis

and

tax-basis

components

of

total

distributable

earnings

(loss)

arise

when

certain

items

of

income,

gain,

or

loss

are

recognized

in

different

periods

for

financial

statement

purposes

versus

for

tax

purposes;

these

differences

will

reverse

in

a

subsequent

reporting

period.

The

temporary

differences

relate

primarily

to

the

deferral

of

losses

from

wash

sales.

The

loss

carryforwards

and

deferrals

primarily

relate

to

late-year

ordinary

loss

deferrals.

The

fund

has

elected

to

defer

certain

losses

to

the

first

day

of

the

following

fiscal

year

for

late-year

ordinary

loss

deferrals.

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

($000s)

Cost

of

investments

$

648,093

Unrealized

appreciation

$

346,868

Unrealized

depreciation

(140,846

)

Net

unrealized

appreciation

(depreciation)

$

206,022

($000s)

Undistributed

long-term

capital

gain

$

3,763‌

Net

unrealized

appreciation

(depreciation)

206,022‌

Loss

carryforwards

and

deferrals

(112‌)

Total

distributable

earnings

(loss)

$

209,673‌

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

82

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

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.

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

Expense

limitation

0.25%

Expense

limitation

date

04/30/24

(Waived)/repaid

during

the

period

($000s)

$(84)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

83

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 year

ended December

31,

2022.

In

addition,

the

fund

has

entered

into

service

agreements

with

Price

Associates

and

two

wholly

owned

subsidiaries

of

Price

Associates,

each

an

affiliate

of

the

fund

(collectively,

Price).

Price

Associates

provides

certain

accounting

and

administrative

services

to

the

fund.

T.

Rowe

Price

Services,

Inc.

provides

shareholder

and

administrative

services

in

its

capacity

as

the

fund’s

transfer

and

dividend-disbursing

agent.

T.

Rowe

Price

Retirement

Plan

Services,

Inc.

provides

subaccounting

and

recordkeeping

services

for

certain

retirement

accounts

invested

in

the

fund.

For

the

year ended

December

31,

2022,

expenses

incurred

pursuant

to

these

service

agreements

were

$102,000 for

Price

Associates;

$653,000 for

T.

Rowe

Price

Services,

Inc.;

and

$99,000 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

year ended

December

31,

2022,

the

fund

had

no

purchases

or

sales

cross

trades

with

other

funds

or

accounts

advised

by

Price

Associates.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

84

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.

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.

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

85

REPORT

OF

INDEPENDENT

REGISTERED

PUBLIC

ACCOUNTING

FIRM

To

the

Board

of

Directors

of

T.

Rowe

Price

Index

Trust,

Inc.

and

Shareholders

of

T.

Rowe

Price

Extended

Equity

Market

Index

Fund

Opinion

on

the

Financial

Statements

We

have

audited

the

accompanying

statement

of

assets

and

liabilities,

including

the

portfolio

of

investments,

of

T.

Rowe

Price

Extended

Equity

Market

Index

Fund

(one

of

the

funds

constituting

T.

Rowe

Price

Index

Trust,

Inc.,

referred

to

hereafter

as

the

"Fund")

as

of

December

31,

2022,

the

related

statement

of

operations

for

the

year

ended

December

31,

2022,

the

statement

of

changes

in

net

assets

for

each

of

the

two

years

in

the

period

ended

December

31,

2022,

including

the

related

notes,

and

the

financial

highlights

for

each

of

the

five

years

in

the

period

ended

December

31,

2022

(collectively

referred

to

as

the

“financial

statements”).

In

our

opinion,

the

financial

statements

present

fairly,

in

all

material

respects,

the

financial

position

of

the

Fund

as

of

December

31,

2022,

the

results

of

its

operations

for

the

year

then

ended,

the

changes

in

its

net

assets

for

each

of

the

two

years

in

the

period

ended

December

31,

2022

and

the

financial

highlights

for

each

of

the

five

years

in

the

period

ended

December

31,

2022

in

conformity

with

accounting

principles

generally

accepted

in

the

United

States

of

America.

Basis

for

Opinion

These

financial

statements

are

the

responsibility

of

the

Fund’s

management.

Our

responsibility

is

to

express

an

opinion

on

the

Fund’s

financial

statements

based

on

our

audits.

We

are

a

public

accounting

firm

registered

with

the

Public

Company

Accounting

Oversight

Board

(United

States)

(PCAOB)

and

are

required

to

be

independent

with

respect

to

the

Fund

in

accordance

with

the

U.S.

federal

securities

laws

and

the

applicable

rules

and

regulations

of

the

Securities

and

Exchange

Commission

and

the

PCAOB.

We

conducted

our

audits

of

these

financial

statements

in

accordance

with

the

standards

of

the

PCAOB.

Those

standards

require

that

we

plan

and

perform

the

audit

to

obtain

reasonable

assurance

about

whether

the

financial

statements

are

free

of

material

misstatement,

whether

due

to

error

or

fraud.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

86

Our

audits

included

performing

procedures

to

assess

the

risks

of

material

misstatement

of

the

financial

statements,

whether

due

to

error

or

fraud,

and

performing

procedures

that

respond

to

those

risks.

Such

procedures

included

examining,

on

a

test

basis,

evidence

regarding

the

amounts

and

disclosures

in

the

financial

statements.

Our

audits

also

included

evaluating

the

accounting

principles

used

and

significant

estimates

made

by

management,

as

well

as

evaluating

the

overall

presentation

of

the

financial

statements.

Our

procedures

included

confirmation

of

securities

owned

as

of

December

31,

2022

by

correspondence

with

the

custodian,

transfer

agent

and

brokers;

when

replies

were

not

received

from

brokers,

we

performed

other

auditing

procedures.

We

believe

that

our

audits

provide

a

reasonable

basis

for

our

opinion.

PricewaterhouseCoopers

LLP

Baltimore,

Maryland

February

16,

2023

We

have

served

as

the

auditor

of

one

or

more

investment

companies

in

the

T.

Rowe

Price

group

of

investment

companies

since

1973.

REPORT

OF

INDEPENDENT

REGISTERED

PUBLIC

ACCOUNTING

FIRM

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

87

TAX

INFORMATION

(UNAUDITED)

FOR

THE

TAX

YEAR

ENDED 12/31/22

We

are

providing

this

information

as

required

by

the

Internal

Revenue

Code.

The

amounts

shown

may

differ

from

those

elsewhere

in

this

report

because

of

differences

between

tax

and

financial

reporting

requirements.

The

fund’s

distributions

to

shareholders

included:

$371,000 from

short-term

capital

gains 

$51,089,000 from

long-term

capital

gains,

subject

to

a

long-term

capital

gains

tax

rate

of

not

greater

than

20%

For

taxable

non-corporate

shareholders,

$8,252,000 of

the

fund's

income

represents

qualified

dividend

income

subject

to

a

long-term

capital

gains

tax

rate

of

not

greater

than

20%.

For

corporate

shareholders,

$7,751,000

of

the

fund's

income

qualifies

for

the

dividends-

received

deduction.  

For

individuals

and

certain

trusts

and

estates

which

are

entitled

to

claim

a

deduction

of

up

to

20%

of

their

combined

qualified

real

estate

investment

trust

(REIT)

dividends,

$1,592,000 of

the

fund's

income

qualifies

as

qualified

real

estate

investment

trust

(REIT)

dividends.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

88

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.

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

.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

89

LIQUIDITY

RISK

MANAGEMENT

PROGRAM

In

accordance

with

Rule

22e-4

(Liquidity

Rule)

under

the

Investment

Company

Act

of

1940,

as

amended,

the

fund

has

established

a

liquidity

risk

management

program

(Liquidity

Program)

reasonably

designed

to

assess

and

manage

the

fund’s

liquidity

risk,

which

generally

represents

the

risk

that

the

fund

would

not

be

able

to

meet

redemption

requests

without

significant

dilution

of

remaining

investors’

interests

in

the

fund.

The

fund’s

Board

of

Directors

(Board)

has

appointed

the

fund’s

investment

adviser,

T.

Rowe

Price

Associates,

Inc.

(Adviser),

as

the

administrator

of

the

Liquidity

Program.

As

administrator,

the

Adviser

is

responsible

for

overseeing

the

day-to-day

operations

of

the

Liquidity

Program

and,

among

other

things,

is

responsible

for

assessing,

managing,

and

reviewing

with

the

Board

at

least

annually

the

liquidity

risk

of

each

T.

Rowe

Price

fund.

The

Adviser

has

delegated

oversight

of

the

Liquidity

Program

to

a

Liquidity

Risk

Committee

(LRC),

which

is

a

cross-functional

committee

composed

of

personnel

from

multiple

departments

within

the

Adviser.

The

Liquidity

Program’s

principal

objectives

include

supporting

the

T.

Rowe

Price

funds’

compliance

with

limits

on

investments

in

illiquid

assets

and

mitigating

the

risk

that

the

fund

will

be

unable

to

timely

meet

its

redemption

obligations.

The

Liquidity

Program

also

includes

a

number

of

elements

that

support

the

management

and

assessment

of

liquidity

risk,

including

an

annual

assessment

of

factors

that

influence

the

fund’s

liquidity

and

the

periodic

classification

and

reclassification

of

a

fund’s

investments

into

categories

that

reflect

the

LRC’s

assessment

of

their

relative

liquidity

under

current

market

conditions.

Under

the

Liquidity

Program,

every

investment

held

by

the

fund

is

classified

at

least

monthly

into

one

of

four

liquidity

categories

based

on

estimations

of

the

investment’s

ability

to

be

sold

during

designated

time

frames

in

current

market

conditions

without

significantly

changing

the

investment’s

market

value.

As

required

by

the

Liquidity

Rule,

at

a

meeting

held

on

July

25,

2022,

the

Board

was

presented

with

an

annual

assessment

prepared

by

the

LRC,

on

behalf

of

the

Adviser,

that

addressed

the

operation

of

the

Liquidity

Program

and

assessed

its

adequacy

and

effectiveness

of

implementation,

including

any

material

changes

to

the

Liquidity

Program

and

the

determination

of

each

fund’s

Highly

Liquid

Investment

Minimum

(HLIM).

The

annual

assessment

included

consideration

of

the

following

factors,

as

applicable:

the

fund’s

investment

strategy

and

liquidity

of

portfolio

investments

during

normal

and

reasonably

foreseeable

stressed

conditions,

including

whether

the

investment

strategy

is

appropriate

for

an

open-end

fund,

the

extent

to

which

the

strategy

involves

a

relatively

concentrated

portfolio

or

large

positions

in

particular

issuers,

and

the

use

of

borrowings

for

investment

purposes

and

derivatives;

short-term

and

long-term

cash

flow

projections

covering

both

normal

and

reasonably

foreseeable

stressed

conditions;

and

holdings

of

cash

and

cash

equivalents,

as

well

as

available

borrowing

arrangements.

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

90

For

the

fund

and

other

T.

Rowe

Price

funds,

the

annual

assessment

incorporated

a

report

related

to

a

fund’s

holdings,

shareholder

and

portfolio

concentration,

any

borrowings

during

the

period,

cash

flow

projections,

and

other

relevant

data

for

the

period

of

April

1,

2021,

through

March

31,

2022.

The

report

described

the

methodology

for

classifying

a

fund’s

investments

(including

any

derivative

transactions)

into

one

of

four

liquidity

categories,

as

well

as

the

percentage

of

a

fund’s

investments

assigned

to

each

category.

It

also

explained

the

methodology

for

establishing

a

fund’s

HLIM

and

noted

that

the

LRC

reviews

the

HLIM

assigned

to

each

fund

no

less

frequently

than

annually.

During

the

period

covered

by

the

annual

assessment,

the

LRC

has

concluded,

and

reported

to

the

Board,

that

the

Liquidity

Program

continues

to

operate

adequately

and

effectively

and

is

reasonably

designed

to

assess

and

manage

the

fund’s

liquidity

risk.

LIQUIDITY

RISK

MANAGEMENT

PROGRAM

(continued)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

91

ABOUT

THE

FUND'S

DIRECTORS

AND

OFFICERS

Your

fund

is

overseen

by

a

Board

of

Directors

(Board)

that

meets

regularly

to

review

a

wide

variety

of

matters

affecting

or

potentially

affecting

the

fund,

including

performance,

investment

programs,

compliance

matters,

advisory

fees

and

expenses,

service

providers,

and

business

and

regulatory

affairs.

The

Board

elects

the

fund’s

officers,

who

are

listed

in

the

final

table.

The

directors

who

are

also

employees

or

officers

of

T.

Rowe

Price

are

considered

to

be

“interested”

directors

as

defined

in

Section

2(a)(19)

of

the

1940

Act

because

of

their

relationships

with

T.

Rowe

Price

and

its

affiliates.

The

business

address

of

each

director

and

officer

is

100

East

Pratt

Street,

Baltimore,

Maryland

21202.

The

Statement

of

Additional

Information

includes

additional

information

about

the

fund

directors

and

is

available

without

charge

by

calling

a

T.

Rowe

Price

representative

at

1-800-638-5660.

INDEPENDENT

DIRECTORS

(a)

Name

(Year

of

Birth)

Year

Elected

[Number

of

T.

Rowe

Price

Portfolios

Overseen]

Principal

Occupation(s)

and

Directorships

of

Public

Companies

and

Other

Investment

Companies

During

the

Past

Five

Years

Teresa

Bryce

Bazemore

(1959)

2018

[205]

President

and

Chief

Executive

Officer,

Federal

Home

Loan

Bank

of

San

Francisco

(2021

to

present);

President,

Radian

Guaranty

(2008

to

2017);

Chief

Executive

Officer,

Bazemore

Consulting

LLC

(2018

to

2021);

Director,

Chimera

Investment

Corporation

(2017

to

2021);

Director,

First

Industrial

Realty

Trust

(2020

to

present);

Director,

Federal

Home

Loan

Bank

of

Pittsburgh

(2017

to

2019)

Ronald

J.

Daniels

(b)

(1959)

2018

[0]

President,

The

Johns

Hopkins

University

and

Professor,

Political

Science

Department,

The

Johns

Hopkins

University

(2009

to

present);

Director,

Lyndhurst

Holdings

(2015

to

present);

Director,

BridgeBio

Pharma,

Inc.

(2020

to

present)

Bruce

W.

Duncan

(1951)

2013

[205]

President,

Chief

Executive

Officer,

and

Director,

CyrusOne,

Inc.

(2020

to

2021);

Chief

Executive

Officer

and

Director

(2009

to

2016),

Chair

of

the

Board

(2016

to

2020),

and

President

(2009

to

2016),

First

Industrial

Realty

Trust,

owner

and

operator

of

industrial

properties;

Chair

of

the

Board

(2005

to

2016)

and

Director

(1999

to

2016),

Starwood

Hotels

&

Resorts,

a

hotel

and

leisure

company;

Member,

Investment

Company

Institute

Board

of

Governors

(2017

to

2019);

Member,

Independent

Directors

Council

Governing

Board

(2017

to

2019);

Senior

Advisor,

KKR

(2018

to

present);

Director,

Boston

Properties

(2016

to

present);

Director,

Marriott

International,

Inc.

(2016

to

2020)

Robert

J.

Gerrard,

Jr.

(1952)

2012

[205]

Advisory

Board

Member,

Pipeline

Crisis/Winning

Strategies,

a

collaborative

working

to

improve

opportunities

for

young

African

Americans

(1997

to

2016);

Chair

of

the

Board,

all

funds

(July

2018

to

present)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

92

INTERESTED  DIRECTORS

(a)

Name

(Year

of

Birth)

Year

Elected

[Number

of

T.

Rowe

Price

Portfolios

Overseen]

Principal

Occupation(s)

and

Directorships

of

Public

Companies

and

Other

Investment

Companies

During

the

Past

Five

Years

Paul

F.

McBride

(1956)

2013

[205]

Advisory

Board

Member,

Vizzia

Technologies

(2015

to

present);

Board

Member,

Dunbar

Armored

(2012

to

2018)

Kellye

L.

Walker

(c)

(1966)

2021

[205]

Executive

Vice

President

and

Chief

Legal

Officer,

Eastman

Chemical

Company

(April

2020

to

present);

Executive

Vice

President

and

Chief

Legal

Officer,

Huntington

Ingalls

Industries,

Inc.

(January

2015

to

March

2020);

Director,

Lincoln

Electric

Company

(October

2020

to

present)

(a)

All

information

about

the

independent

directors

was

current

as

of

December

31,

2021,

unless

otherwise

indicated,

except

for

the

number

of

portfolios

overseen,

which

is

current

as

of

the

date

of

this

report.

(b)

Effective

April

27,

2022,

Mr.

Daniels

resigned

from

his

role

as

an

independent

director

of

the

Price

Funds.

(c)

Effective

November

8,

2021,

Ms.

Walker

was

appointed

as

an

independent

director

of

the

Price

Funds.

Name

(Year

of

Birth)

Year

Elected

[Number

of

T.

Rowe

Price

Portfolios

Overseen]

Principal

Occupation(s)

and

Directorships

of

Public

Companies

and

Other

Investment

Companies

During

the

Past

Five

Years

David

Oestreicher

(1967)

2018

[205]

Director,

Vice

President,

and

Secretary,

T.

Rowe

Price,

T.

Rowe

Price

Investment

Services,

Inc.,

T.

Rowe

Price

Retirement

Plan

Services,

Inc.,

and

T.

Rowe

Price

Services,

Inc.;

Director

and

Secretary,

T.

Rowe

Price

Investment

Management,

Inc.

(Price

Investment

Management);

Vice

President

and

Secretary,

T.

Rowe

Price

International

(Price

International);

Vice

President,

T.

Rowe

Price

Hong

Kong

(Price

Hong

Kong),

T. Rowe

Price

Japan

(Price

Japan),

and

T.

Rowe

Price

Singapore

(Price

Singapore);

General

Counsel,

Vice

President,

and

Secretary,

T.

Rowe

Price

Group,

Inc.;

Chair

of

the

Board,

Chief

Executive

Officer,

President,

and

Secretary,

T.

Rowe

Price

Trust

Company;

Principal

Executive

Officer

and

Executive

Vice

President,

all

funds

Robert

W.

Sharps,

CFA,

CPA

(b)

(1971)

2017

[0]

Director

and

Vice

President,

T.

Rowe

Price;

Director,

Price

Investment

Management;

Chief

Executive

Officer

and

President,

T.

Rowe

Price

Group,

Inc.;

Vice

President,

T.

Rowe

Price

Trust

Company

INDEPENDENT

DIRECTORS

(a)

(CONTINUED)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

93

OFFICERS

Name

(Year

of

Birth)

Year

Elected

[Number

of

T.

Rowe

Price

Portfolios

Overseen]

Principal

Occupation(s)

and

Directorships

of

Public

Companies

and

Other

Investment

Companies

During

the

Past

Five

Years

Eric

L.

Veiel,

CFA

(1972)

2022

[205]

Director

and

Vice

President,

T.

Rowe

Price;

Vice

President,

T.

Rowe

Price

Group,

Inc.,

and

T.

Rowe

Price

Trust

Company

(a)

All

information

about

the

interested

directors

was

current

as

of

January

1,

2022,

unless

otherwise

indicated,

except

for

the

number

of

portfolios

overseen,

which

is

current

as

of

the

date

of

this

report.

(b)

Effective

February

3,

2022,

Mr.

Sharps

resigned

from

his

role

as

an

interested

director

of

the

Price

Funds.

Name

(Year

of

Birth)

Position

Held

With

Index

Trust

Principal

Occupation(s) 

Armando

(Dino)

Capasso

(1974)

Chief

Compliance

Officer

Chief

Compliance

Officer

and

Vice

President,

T.

Rowe

Price

and

Price

Investment

Management;

Vice

President,

T.

Rowe

Price

Group,

Inc.;

formerly,

Chief

Compliance

Officer,

PGIM

Investments

LLC

and

AST

Investment

Services,

Inc.

(ASTIS)

(to

2022);

Chief

Compliance

Officer,

PGIM

Retail

Funds

complex

and

Prudential

Insurance

Funds

(to

2022);

Vice

President

and

Deputy

Chief

Compliance

Officer,

PGIM

Investments

LLC

and

ASTIS

(to

2019);

Senior

Vice

President

and

Senior

Counsel,

Pacific

Investment

Management

Company

LLC

(to

2017) 

Alan

S.

Dupski,

CPA

(1982)

Principal

Financial

Officer,

Vice

President,

and

Treasurer

Vice

President,

Price

Investment

Management,

T.

Rowe

Price,

T.

Rowe

Price

Group,

Inc.,

and

T.

Rowe

Price

Trust

Company

Gary

J.

Greb

(1961)

Vice

President

Vice

President,

Price

Investment

Management,

T.

Rowe

Price,

Price

International,

and

T.

Rowe

Price

Trust

Company

Cheryl

Hampton,

CPA

(1969)

Vice

President

Vice

President,

T.

Rowe

Price;

formerly,

Tax

Director,

Invesco

Ltd.

(to

2021);

Vice

President,

Oppenheimer

Funds,

Inc.

(to

2019)

Benjamin

Kersse,

CPA

(1989)

Vice

President

Vice

President,

T.

Rowe

Price

Unless

otherwise

noted,

officers

have

been

employees

of

T.

Rowe

Price

or

Price

International

for

at

least

5

years.

INTERESTED  DIRECTORS

(a)

(CONTINUED)

T.

ROWE

PRICE

Extended

Equity

Market

Index

Fund

94

Name

(Year

of

Birth)

Position

Held

With

Index

Trust

Principal

Occupation(s) 

Paul

J.

Krug,

CPA

(1964)

Vice

President

Vice

President,

T.

Rowe

Price,

T.

Rowe

Price

Group,

Inc.,

and

T.

Rowe

Price

Trust

Company

Fran

M.

Pollack-Matz

(1961)

Vice

President

and

Secretary 

Vice

President,

T.

Rowe

Price,

T.

Rowe

Price

Group,

Inc.,

T.

Rowe

Price

Investment

Services,

Inc.,

and

T.

Rowe

Price

Services,

Inc.

Shannon

H.

Rauser

(1987)

Assistant

Secretary 

Assistant

Vice

President,

T.

Rowe

Price

Michael

K.

Sewell

(1982)

Executive

Vice

President

Vice

President,

T.

Rowe

Price

and

T.

Rowe

Price

Group,

Inc.

Neil

Smith

(1972)

President

Vice

President,

Price

Hong

Kong,

Price

Japan,

Price

Singapore,

T.

Rowe

Price

Group,

Inc.,

and

Price

International

Megan

Warren

(1968)

Vice

President

OFAC

Sanctions

Compliance

Officer

and

Vice

President,

Price

Investment

Management;

Vice

President,

T.

Rowe

Price,

T.

Rowe

Price

Group,

Inc.,

T.

Rowe

Price

Retirement

Plan

Services,

Inc.,

T.

Rowe

Price

Services,

Inc.,

and

T.

Rowe

Price

Trust

Company

Unless

otherwise

noted,

officers

have

been

employees

of

T.

Rowe

Price

or

Price

International

for

at

least

5

years.

OFFICERS

(CONTINUED)

T.

Rowe

Price

Investment

Services,

Inc.

|

100

East

Pratt

Street

|

Baltimore,

MD

21202-1009

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involves

special

risks

including

economic

and

political

uncertainty

and

currency

fluctuation.

1

The

T.

Rowe

Price

®

ActivePlus

Portfolios

is

a

discretionary

investment

management

program

provided

by

T.

Rowe

Price

Advisory

Services,

Inc.,

a

registered

investment

adviser

under

the

Investment

Advisers

Act

of

1940.

Brokerage

services

are

provided

by

T.

Rowe

Price

Investment

Services,

Inc.,

member

FINRA/SIPC.

Brokerage

accounts

are

carried

by

Pershing

LLC,

a

BNY

Mellon

Company,

member

NYSE/FINRA/SIPC.

T.

Rowe

Price

Advisory

Services,

Inc.,

and

T.

Rowe

Price

Investment

Services,

Inc.,

are

affiliated

companies.

2

Brokerage

services

are

provided

by

T.

Rowe

Price

Investment

Services,

Inc.,

member

FINRA/SIPC.

Brokerage

accounts

are

carried

by

Pershing

LLC,

a

BNY

Mellon

Company,

member

NYSE/FINRA/SIPC.

F124-050

2/23

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

Not applicable.

Item 2. Code of Ethics.

The registrant has adopted 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. A copy of this code of ethics is filed as an exhibit to this Form N-CSR. No substantive amendments were approved or waivers were granted to this code of ethics during the period covered by this report.

Item 3. Audit Committee Financial Expert.

The registrant’s Board of Directors has determined that Ms. Teresa Bryce Bazemore qualifies as an audit committee financial expert, as defined in Item 3 of Form N-CSR. Ms. Bazemore is considered independent for purposes of Item 3 of Form N-CSR.

Item 4. Principal Accountant Fees and Services.

(a) – (d)    Aggregate fees billed for the last two fiscal years for professional services rendered to, or on behalf of, the registrant by the registrant’s principal accountant were as follows:

	2022		2021
Audit Fees	$	21,734	$	21,172
Audit-Related Fees		-		-
Tax Fees		-		1,540
All Other Fees		-		-

Audit fees include amounts related to the audit of the registrant’s annual financial statements and services normally provided by the accountant in connection with statutory and regulatory filings. Audit-related fees include amounts reasonably related to the performance of the audit of the registrant’s financial statements and specifically include the issuance of a report on internal controls and, if applicable, agreed-upon procedures related to fund acquisitions. Tax fees include amounts related to services for tax compliance, tax planning, and tax advice. The nature of these services specifically includes the review of distribution calculations and the preparation of Federal, state, and excise tax returns. All other fees include the registrant’s pro-rata share of amounts for agreed-upon procedures in conjunction with service contract approvals by the registrant’s Board of Directors/Trustees.

(e)(1) The registrant’s audit committee has adopted a policy whereby audit and non-audit services performed by the registrant’s principal accountant for the registrant, its investment adviser, and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant require pre-approval in advance at regularly scheduled audit committee meetings. If such a service is required between regularly scheduled audit committee meetings, pre-approval may be authorized by one audit committee member with ratification at the next scheduled audit committee meeting. Waiver of pre-approval for audit or non-audit services requiring fees of a de minimis amount is not permitted.

  (2) No services included in (b) – (d) above were approved pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X.

(f) Less than 50 percent of the hours expended on the principal accountant’s engagement to audit the registrant’s financial statements for the most recent fiscal year were attributed to work performed by persons other than the principal accountant’s full-time, permanent employees.

(g) The aggregate fees billed for the most recent fiscal year and the preceding fiscal year by the registrant’s principal accountant for non-audit services rendered to the registrant, its investment adviser, and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant were $2,037,000 and $3,732,000, respectively.

(h) All non-audit services rendered in (g) above were pre-approved by the registrant’s audit committee. Accordingly, these services were considered by the registrant’s audit committee in maintaining the principal accountant’s independence.

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 attached.
(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	February 16, 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	February 16, 2023
By	/s/ Alan S. Dupski
	Alan S. Dupski
	Principal Financial Officer
Date	February 16, 2023