ROWE

PRICE

U.S.

Bond

Index

Fund

July

31,

2026

Unaudited

Portfolio

Investments

‡

Par/Shares

Value

(Amounts

000s)

‡

ASSET-BACKED

SECURITIES

6.6%

Car

Loan

1.8%

Ally

Bank

Series

2026-A,

Class

4.582%,

3/15/34 (1)

1,736‌

1,732‌

Ally

Bank

Series

2026-A,

Class

4.709%,

3/15/34 (1)

223‌

222‌

Ally

Bank

Auto

Credit-Linked

Notes

Series

2024-B,

Class

5.117%,

9/15/32 (1)

160‌

161‌

ARI

Fleet

Lease

Trust

Series

2026-A,

Class

3.96%,

11/15/34 (1)

700‌

696‌

ARI

Fleet

Lease

Trust

Series

2026-A,

Class

4.09%,

11/15/34 (1)

260‌

256‌

Avis

Budget

Rental

Car

Funding

AESOP

Series

2025-3A,

Class

4.17%,

2/20/30 (1)

510‌

502‌

Avis

Budget

Rental

Car

Funding

AESOP

Series

2026-1A,

Class

4.57%,

8/20/30 (1)

425‌

416‌

Bayview

Opportunity

Master

Fund

VII

Series

2024-CAR1,

Class

FRN

SOFR30A

1.10%,

4.716%,

12/26/31 (1)

82‌

83‌

Bridgecrest

Lending

Auto

Securitization

Trust

Series

2026-1,

Class

4.04%,

12/17/29

935‌

931‌

CarMax

Auto

Owner

Trust

Series

2023-3,

Class

5.47%,

2/15/29

215‌

217‌

CarMax

Auto

Owner

Trust

Series

2025-4,

Class

3.97%,

12/16/30

760‌

753‌

Carvana

Auto

Receivables

Trust

Series

2021-P4,

Class

2.33%,

2/10/28

1,860‌

1,828‌

Carvana

Auto

Receivables

Trust

Series

2024-P4,

Class

4.74%,

12/10/30

620‌

Carvana

Auto

Receivables

Trust

Series

2025-P2,

Class

4.75%,

6/10/31

1,465‌

1,461‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Carvana

Auto

Receivables

Trust

Series

2025-P4,

Class

4.25%,

11/10/31

2,040‌

2,009‌

Carvana

Auto

Receivables

Trust

Series

2026-P1,

Class

4.35%,

7/12/32

4,660‌

4,600‌

Carvana

Auto

Receivables

Trust

Series

2026-P1,

Class

4.76%,

7/12/32

1,035‌

1,024‌

Carvana

Auto

Receivables

Trust

Series

2026-P2,

Class

4.77%,

4/10/31

1,250‌

1,252‌

Carvana

Auto

Receivables

Trust

Series

2026-P2,

Class

4.91%,

8/10/32

3,225‌

3,236‌

Carvana

Auto

Receivables

Trust

Series

2026-P2,

Class

5.19%,

8/10/32

335‌

336‌

Enterprise

Fleet

Financing

Series

2024-3,

Class

5.06%,

3/20/31 (1)

115‌

116‌

Enterprise

Fleet

Financing

Series

2024-4,

Class

4.69%,

7/20/27 (1)

176‌

Enterprise

Fleet

Financing

Series

2024-4,

Class

4.70%,

6/20/31 (1)

790‌

789‌

Enterprise

Fleet

Financing

Series

2025-3,

Class

4.46%,

9/20/29 (1)

1,775‌

1,770‌

Exeter

Automobile

Receivables

Trust

Series

2025-4A,

Class

4.40%,

5/15/30

1,335‌

1,333‌

Exeter

Automobile

Receivables

Trust

Series

2026-3A,

Class

4.47%,

7/15/30

1,890‌

1,888‌

Ford

Credit

Floorplan

Master

Owner

Trust

Series

2025-2,

Class

4.33%,

9/15/30

260‌

258‌

Ford

Credit

Floorplan

Master

Owner

Trust

Series

2026-2,

Class

4.60%,

5/15/33

3,495‌

3,469‌

Ford

Credit

Floorplan

Master

Owner

Trust

Series

2026-2,

Class

4.85%,

5/15/33

285‌

282‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Huntington

Bank

Auto

Credit-Linked

Notes

Series

2024-1,

Class

6.153%,

5/20/32 (1)

75‌

76‌

Huntington

Bank

Auto

Credit-Linked

Notes

Series

2025-1,

Class

4.957%,

3/21/33 (1)

790‌

789‌

Huntington

Bank

Auto

Credit-Linked

Notes

Series

2026-1,

Class

4.503%,

2/20/34 (1)

1,440‌

1,424‌

Hyundai

Auto

Receivables

Trust

Series

2026-A,

Class

4.10%,

12/15/32

610‌

596‌

Navistar

Financial

Dealer

Note

Master

Owner

Trust

Series

2025-1,

Class

4.18%,

9/25/30 (1)

1,730‌

1,723‌

Santander

Bank

Auto

Credit-Linked

Notes

Series

2026-A,

Class

4.806%,

7/17/34 (1)

780‌

777‌

Santander

Drive

Auto

Receivables

Trust

Series

2025-4,

Class

4.17%,

4/15/30

240‌

239‌

Santander

Drive

Auto

Receivables

Trust

Series

2026-1,

Class

3.93%,

7/15/30

980‌

973‌

Santander

Drive

Auto

Receivables

Trust

Series

2026-1,

Class

4.07%,

4/15/32

1,455‌

1,438‌

SFS

Auto

Receivables

Securitization

Trust

Series

2024-2A,

Class

5.41%,

8/20/30 (1)

165‌

167‌

SFS

Auto

Receivables

Securitization

Trust

Series

2026-1A,

Class

4.27%,

6/21/32 (1)

810‌

791‌

Stellantis

Financial

Underwritten

Enhanced

Lease

Trust

Series

2025-BA,

Class

4.47%,

7/20/29 (1)

585‌

583‌

Stellantis

Financial

Underwritten

Enhanced

Lease

Trust

Series

2026-AA,

Class

4.41%,

4/22/30 (1)

665‌

660‌

Stellantis

Financial

Underwritten

Enhanced

Lease

Trust

Series

2026-AA,

Class

4.61%,

4/22/30 (1)

360‌

357‌

Wheels

Fleet

Lease

Funding

Series

2026-1A,

Class

A2A

4.30%,

4/18/39 (1)

1,660‌

1,656‌

44,665‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Home

Equity

0.2%

ACHM

Trust

Series

2026-HE1,

Class

5.82%,

8/25/56 (1)

2,700‌

2,703‌

FIGRE

Trust

Series

2026-HF3,

Class

A1A,

FRN

SOFR30A

1.40%,

5.016%,

3/25/56 (1)

449‌

450‌

FIGRE

Trust

Series

2026-HF7,

Class

FRN

SOFR30A

1.30%,

4.916%,

7/25/56 (1)

1,800‌

1,798‌

4,951‌

Other

Asset-Backed

Securities

4.1%

720

East

Series

2024-1A,

Class

A1R,

CLO,

FRN

TSFR

1.26%,

4.932%,

7/15/39 (1)

4,030‌

4,033‌

Abry

Liquid

Credit

Series

2026-3A,

Class

A1,

CLO,

FRN

TSFR

1.23%,

4.959%,

4/20/39 (1)

2,250‌

2,247‌

Affirm

Master

Trust

Series

2025-2A,

Class

4.67%,

7/15/33 (1)

3,215‌

3,220‌

Affirm

Master

Trust

Series

2026-2A,

Class

4.67%,

4/16/35 (1)

2,230‌

2,212‌

AGL

Series

2021-10A,

Class

A1R2,

CLO,

FRN

TSFR

1.17%,

4.923%,

4/15/39 (1)

3,670‌

3,677‌

AGL

Series

2021-13A,

Class

A1R,

CLO,

FRN

TSFR

1.10%,

4.829%,

10/20/34 (1)

4,600‌

Anchorage

Capital

Series

2026-22A,

Class

AR4,

CLO,

FRN

TSFR

1.23%,

4.959%,

1/20/39 (1)

1,175‌

1,177‌

Apex

Credit

Series

2025-13A,

Class

A1,

CLO,

FRN

TSFR

1.35%,

5.083%,

1/22/39 (1)

840‌

842‌

ARES

Series

2019-51A,

Class

A1R2,

CLO,

FRN

TSFR

1.36%,

5.113%,

10/15/37 (1)

1,420‌

1,422‌

Ares

Loan

Funding

Series

2025-ALF9A,

Class

A1,

CLO,

FRN

TSFR

1.18%,

4.933%,

3/31/38 (1)

1,225‌

1,224‌

Atlas

Senior

Loan

Fund

XXII

Series

2023-22A,

Class

A1R,

CLO,

FRN

TSFR

1.30%,

5.029%,

4/20/39 (1)

950‌

953‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Barings

Series

2023-4A,

Class

A1R,

CLO,

FRN

TSFR

1.17%,

4.899%,

1/20/39 (1)

1,530‌

1,529‌

Barings

III

Series

2021-3A,

Class

B1R,

CLO,

FRN

TSFR

1.63%,

5.359%,

1/18/35 (1)

2,275‌

2,278‌

Battalion

XXV

Series

2024-25A,

Class

BR,

CLO,

FRN

TSFR

1.75%,

5.479%,

3/13/37 (1)

3,690‌

3,699‌

Cerberus

Loan

Funding

XLIV

Series

2023-5A,

Class

A1R,

CLO,

FRN

TSFR

1.52%,

5.273%,

1/15/36 (1)

3,475‌

CIFC

Funding

Series

2018-1A,

Class

A1R,

CLO,

FRN

TSFR

1.32%,

5.049%,

1/18/38 (1)

935‌

936‌

CyrusOne

Data

Centers

Issuer

Series

2024-2A,

Class

4.50%,

5/20/49 (1)

2,490‌

2,394‌

Dell

Equipment

Finance

Trust

Series

2024-1,

Class

5.73%,

3/22/30 (1)

100‌

Dell

Equipment

Finance

Trust

Series

2026-1A,

Class

4.32%,

12/22/31 (1)

925‌

921‌

Dext

Series

2025-2,

Class

4.23%,

4/15/36 (1)

365‌

363‌

Driven

Brands

Funding

Series

2020-1A,

Class

3.786%,

7/20/50 (1)

368‌

361‌

Driven

Brands

Funding

Series

2021-1A,

Class

2.791%,

10/20/51 (1)

1,584‌

1,480‌

Elara

HGV

Timeshare

Issuer

Series

2023-A,

Class

6.16%,

2/25/38 (1)

252‌

258‌

Elara

HGV

Timeshare

Issuer

Series

2023-A,

Class

6.53%,

2/25/38 (1)

202‌

207‌

Eldridge

Series

2025-2A,

Class

A1,

CLO,

FRN

TSFR

1.28%,

5.009%,

1/20/39 (1)

2,045‌

2,048‌

Elmwood

Series

2022-7A,

Class

AR2,

CLO,

FRN

TSFR

1.20%,

4.929%,

1/20/39 (1)

1,160‌

1,161‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Fortress

Credit

BSL

XIX

Series

2023-2A,

Class

A1R,

CLO,

FRN

TSFR

1.35%,

5.125%,

7/24/36 (1)

5,035‌

5,037‌

Goto

Foods

Funding

Series

2026-1A,

Class

6.854%,

4/30/56 (1)

4,210‌

4,182‌

GreatAmerica

Leasing

Receivables

Funding

Series

2026-1,

Class

5.14%,

5/16/33 (1)

390‌

391‌

Halseypoint

Series

2022-6A,

Class

A1R,

CLO,

FRN

TSFR

1.35%,

5.079%,

1/20/38 (1)

1,710‌

1,711‌

Hardee's

Funding

Series

2024-1A,

Class

7.253%,

3/20/54 (1)

946‌

964‌

Hilton

Grand

Vacations

Trust

Series

2025-2A,

Class

4.54%,

5/25/44 (1)

492‌

488‌

Jamestown

Series

2020-15A,

Class

A1R2,

CLO,

FRN

TSFR

1.05%,

4.803%,

7/15/35 (1)

1,385‌

1,386‌

Madison

Park

Funding

XXXV

Series

2019-35A,

Class

A1R2,

CLO,

FRN

TSFR

1.22%,

4.949%,

2/13/39 (1)

1,605‌

1,607‌

Midocean

Credit

Series

2024-15A,

Class

A1R,

CLO,

FRN

TSFR

1.25%,

4.984%,

7/21/39 (1)

2,590‌

2,589‌

MVW

Series

2020-1A,

Class

1.74%,

10/20/37 (1)

74‌

Neuberger

Berman

Loan

Advisers

Series

2022-48A,

Class

A1R,

CLO,

FRN

TSFR

1.09%,

4.90%,

4/25/36 (1)

4,685‌

NMEF

Funding

Series

2025-A,

Class

4.72%,

7/15/32 (1)

591‌

592‌

NMEF

Funding

Series

2026-A,

Class

4.20%,

2/15/34 (1)

235‌

232‌

NMEF

Funding

Series

2026-A,

Class

4.48%,

2/15/34 (1)

150‌

148‌

OCP

Series

2017-13A,

Class

AR2,

CLO,

FRN

TSFR

1.34%,

5.074%,

11/26/37 (1)

2,370‌

2,374‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Octane

Receivables

Trust

Series

2024-1A,

Class

5.68%,

5/20/30 (1)

82‌

Octane

Receivables

Trust

Series

2024-RVM1,

Class

5.01%,

1/22/46 (1)

533‌

535‌

Octane

Receivables

Trust

Series

2025-RVM1,

Class

4.48%,

12/20/46 (1)

2,080‌

2,067‌

Orion

Series

2023-1A,

Class

A1R,

CLO,

FRN

TSFR

1.22%,

5.03%,

10/25/38 (1)

845‌

846‌

PEAC

Solutions

Receivables

Series

2025-1A,

Class

4.94%,

10/20/28 (1)

1,447‌

1,451‌

PEAC

Solutions

Receivables

Series

2026-1A,

Class

4.39%,

7/20/33 (1)

1,210‌

1,198‌

Post

Road

Equipment

Finance

Series

2024-1A,

Class

5.59%,

11/15/29 (1)

5‌

Progress

Residential

Trust

Series

2024-SFR5,

Class

3.00%,

8/17/41 (1)

737‌

692‌

Progress

Residential

Trust

Series

2025-SFR5,

Class

3.85%,

10/17/42 (1)

653‌

619‌

Regatta

XVI

Funding

Series

2019-2A,

Class

A1R2,

CLO,

FRN

TSFR

1.19%,

4.943%,

4/15/39 (1)

855‌

Rockford

Tower

Series

2022-1A,

Class

A1R,

CLO,

FRN

TSFR

1.20%,

4.929%,

7/20/35 (1)

4,690‌

4,691‌

SCF

Equipment

Leasing

Series

2024-1A,

Class

5.82%,

9/20/32 (1)

840‌

852‌

SCF

Equipment

Leasing

Series

2025-1A,

Class

4.82%,

7/22/30 (1)

248‌

SCF

Equipment

Leasing

Series

2025-1A,

Class

5.11%,

11/21/33 (1)

1,250‌

1,258‌

SEB

Funding

Series

2024-1A,

Class

7.386%,

4/30/54 (1)

682‌

691‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

SEB

Funding

Series

2026-1A,

Class

6.665%,

1/30/56 (1)

3,400‌

3,365‌

Sierra

Timeshare

Receivables

Funding

Series

2025-2A,

Class

4.72%,

4/20/44 (1)

565‌

561‌

Sierra

Timeshare

Receivables

Funding

Series

2025-3A,

Class

4.44%,

8/22/44 (1)

231‌

230‌

Signal

Peak

Series

2016-3A,

Class

A1R4,

CLO,

FRN

TSFR

1.30%,

5.052%,

4/23/39 (1)

700‌

702‌

Symphony

Series

2023-30A,

Class

A1R2,

CLO,

FRN

TSFR

1.20%,

4.929%,

10/20/37 (1)

1,260‌

Symphony

Series

2022-37A,

Class

AR2,

CLO,

FRN

TSFR

1.13%,

4.859%,

1/20/37 (1)

1,865‌

1,867‌

Symphony

XXXI

Series

2022-31A,

Class

AR,

CLO,

FRN

TSFR

1.17%,

4.903%,

1/22/38 (1)

670‌

671‌

THL

Credit

Wind

River

Series

2019-3A,

Class

AR3,

CLO,

FRN

TSFR

1.20%,

4.953%,

1/15/38 (1)

890‌

891‌

TPIC

SPV

Class

10.00%,

12/6/26,

(10.00%

PIK),

Acquisition

Date:

12/10/24

7/28/26,

Cost $179 (2)(3)(4)

196‌

213‌

TPIC

SPV

Series

2024-1,

Class

7.131%,

12/28/29,

(7.131%

PIK),

Acquisition

Date:

12/10/24

7/28/26,

Cost $1,923 (2)(3)(4)

1,923‌

1,446‌

Tricon

Residential

Trust

Series

2024-SFR3,

Class

4.50%,

8/17/41 (1)

1,042‌

1,018‌

Verdant

Receivables

Series

2024-1A,

Class

5.68%,

12/12/31 (1)

93‌

94‌

Verdant

Receivables

Series

2025-1A,

Class

5.37%,

5/12/33 (1)

100‌

Verizon

Master

Trust

Series

2026-1,

Class

A1A

3.94%,

2/20/31

1,360‌

1,350‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Wingspire

Equipment

Finance

Series

2025-1A,

Class

4.33%,

9/20/33 (1)

286‌

285‌

103,420‌

Student

Loan

0.5%

Bayview

Opportunity

Master

Fund

VII

Series

2025-EDU1,

Class

FRN

SOFR30A

1.30%,

4.916%,

7/27/48 (1)

1,278‌

Navient

Education

Loan

Trust

Series

2026-A,

Class

4.86%,

9/15/56 (1)

973‌

960‌

Navient

Private

Education

Refi

Loan

Trust

Series

2019-CA,

Class

3.13%,

2/15/68 (1)

116‌

115‌

Navient

Private

Education

Refi

Loan

Trust

Series

2020-A,

Class

A2A

2.46%,

11/15/68 (1)

350‌

339‌

Navient

Private

Education

Refi

Loan

Trust

Series

2020-GA,

Class

1.17%,

9/16/69 (1)

114‌

107‌

Navient

Private

Education

Refi

Loan

Trust

Series

2020-HA,

Class

1.31%,

1/15/69 (1)

91‌

86‌

Navient

Refinance

Loan

Trust

Series

2026-A,

Class

4.50%,

1/18/56 (1)

1,033‌

1,012‌

Navient

Refinance

Loan

Trust

Series

2026-B,

Class

5.07%,

6/15/56 (1)

2,135‌

2,123‌

SMB

Private

Education

Loan

Trust

Series

2018-B,

Class

A2A

3.60%,

1/15/37 (1)

55‌

54‌

SMB

Private

Education

Loan

Trust

Series

2020-A,

Class

A2A

2.23%,

9/15/37 (1)

150‌

146‌

SMB

Private

Education

Loan

Trust

Series

2020-B,

Class

A1A

1.29%,

7/15/53 (1)

443‌

424‌

SMB

Private

Education

Loan

Trust

Series

2021-A,

Class

APT1

1.07%,

1/15/53 (1)

1,216‌

1,122‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

SMB

Private

Education

Loan

Trust

Series

2026-A,

Class

A1A

4.68%,

12/15/53 (1)

3,964‌

3,856‌

11,622‌

Total

Asset-Backed

Securities

(Cost

$165,702)

164,658‌

CORPORATE

BONDS

28.5%

FINANCIAL

INSTITUTIONS

11.3%

Banking

6.3%

Ally

Financial,

2.20%,

11/2/28

1,505‌

1,419‌

American

Express,

VR,

4.918%,

7/20/33 (5)

550‌

542‌

Banco

Santander,

3.49%,

5/28/30

3,200‌

3,025‌

Bank

Leumi

Le-Israel,

5.343%,

6/29/29 (1)(6)

1,710‌

1,716‌

Bank

America,

6.00%,

10/15/36

300‌

309‌

Bank

America,

7.75%,

5/14/38

150‌

174‌

Bank

America,

VR,

2.592%,

4/29/31 (5)

1,875‌

1,720‌

Bank

America,

VR,

2.676%,

6/19/41 (5)

7,725‌

5,435‌

Bank

America,

VR,

2.831%,

10/24/51 (5)

260‌

155‌

Bank

America,

VR,

3.194%,

7/23/30 (5)

180‌

172‌

Bank

America,

VR,

3.824%,

1/20/28 (5)

2,280‌

2,274‌

Bank

America,

VR,

4.244%,

4/24/38 (5)

45‌

40‌

Bank

America,

VR,

5.425%,

8/15/35 (5)

2,000‌

1,967‌

Bank

America,

Series

VR,

2.651%,

3/11/32 (5)

2,800‌

2,515‌

Bank

Montreal,

Series

VR,

4.439%,

1/14/32 (5)

1,900‌

1,849‌

Bank

Montreal,

Series

VR,

5.298%,

6/2/37 (5)

1,920‌

1,877‌

Bank

New

York

Mellon,

VR,

4.596%,

7/26/30 (5)

170‌

169‌

Bank

New

York

Mellon,

VR,

6.474%,

10/25/34 (5)

1,440‌

1,540‌

Barclays,

VR,

4.837%,

9/10/28 (5)

230‌

Barclays,

VR,

5.674%,

3/12/28 (5)

4,545‌

4,572‌

Barclays,

VR,

5.69%,

3/12/30 (5)

2,840‌

2,885‌

BBVA

Mexico

Institucion

Banca

Multiple

Grupo

Financiero,

5.25%,

9/10/29

1,865‌

1,870‌

BNP

Paribas,

VR,

5.497%,

5/20/30 (1)(5)

2,750‌

2,783‌

Capital

One,

2.70%,

2/6/30

2,000‌

1,857‌

Capital

One

Financial,

3.65%,

5/11/27

1,430‌

1,422‌

Capital

One

Financial,

VR,

2.359%,

7/29/32 (5)

3,700‌

3,177‌

Capital

One

Financial,

VR,

6.051%,

2/1/35 (5)

365‌

373‌

Citigroup,

5.875%,

1/30/42

450‌

449‌

Citigroup,

VR,

3.887%,

1/10/28 (5)

2,050‌

2,044‌

Citigroup,

VR,

4.075%,

4/23/29 (5)

1,920‌

1,899‌

Credit

Agricole,

VR,

4.656%,

1/12/32 (1)(5)

1,840‌

1,794‌

Danske

Bank,

VR,

5.705%,

3/1/30 (1)(5)

2,970‌

3,021‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Fifth

Third

Bancorp,

VR,

4.566%,

4/29/32 (5)

2,180‌

2,118‌

Fifth

Third

Bancorp,

VR,

4.895%,

9/6/30 (5)

150‌

Fifth

Third

Bancorp,

VR,

6.339%,

7/27/29 (5)

460‌

473‌

Goldman

Sachs

Group,

3.80%,

3/15/30

1,270‌

1,220‌

Goldman

Sachs

Group,

6.75%,

10/1/37

455‌

483‌

Goldman

Sachs

Group,

VR,

5.065%,

1/21/37 (5)

3,705‌

3,531‌

Goldman

Sachs

Group,

VR,

5.218%,

4/23/31 (5)

390‌

391‌

Goldman

Sachs

Group,

VR,

5.734%,

1/28/56 (5)

2,645‌

2,457‌

HSBC

Bank

USA,

5.875%,

11/1/34

550‌

563‌

HSBC

Holdings,

VR,

2.013%,

9/22/28 (5)

3,345‌

3,245‌

HSBC

Holdings,

VR,

6.161%,

3/9/29 (5)

320‌

327‌

HSBC

Holdings,

VR,

6.332%,

3/9/44 (5)

1,725‌

1,771‌

ING

Groep,

VR,

5.55%,

3/19/35 (5)

1,655‌

1,658‌

ING

Groep,

VR,

6.114%,

9/11/34 (5)

740‌

769‌

Intesa

Sanpaolo,

VR,

5.00%,

6/29/30 (1)(5)

2,420‌

2,409‌

JPMorgan

Chase,

2.95%,

10/1/26

980‌

978‌

JPMorgan

Chase,

VR,

2.956%,

5/13/31 (5)

1,230‌

1,140‌

JPMorgan

Chase,

VR,

3.782%,

2/1/28 (5)

990‌

986‌

JPMorgan

Chase,

VR,

3.882%,

7/24/38 (5)

4,905‌

4,226‌

JPMorgan

Chase,

VR,

4.493%,

3/24/31 (5)

4,000‌

3,934‌

JPMorgan

Chase,

VR,

4.995%,

7/22/30 (5)

340‌

341‌

JPMorgan

Chase,

VR,

5.299%,

7/24/29 (5)

3,170‌

3,203‌

JPMorgan

Chase,

VR,

5.576%,

7/23/36 (5)

1,315‌

1,300‌

Manufacturers

Traders

Trust,

VR,

4.762%,

7/6/28 (5)

1,455‌

Mitsubishi

UFJ

Financial

Group,

VR,

4.505%,

1/14/32 (5)

2,690‌

2,620‌

Morgan

Stanley,

6.25%,

8/9/26

175‌

Morgan

Stanley,

VR,

3.217%,

4/22/42 (5)

830‌

610‌

Morgan

Stanley,

VR,

4.493%,

1/16/32 (5)

3,275‌

3,179‌

Morgan

Stanley,

VR,

4.555%,

4/10/30 (5)

5,000‌

4,947‌

Morgan

Stanley,

VR,

5.042%,

7/19/30 (5)

170‌

Morgan

Stanley,

VR,

5.656%,

4/18/30 (5)

2,975‌

3,025‌

Morgan

Stanley

Private

Bank,

VR,

4.734%,

7/18/31 (5)

3,785‌

3,737‌

National

Bank

Canada,

VR,

4.166%,

1/20/29 (5)

2,075‌

2,059‌

National

Bank

Canada,

VR,

4.928%,

6/4/32 (5)

2,805‌

2,766‌

Northern

Trust,

4.15%,

11/19/30

2,080‌

2,029‌

PNC

Financial

Services

Group,

VR,

5.373%,

7/21/36 (5)

495‌

489‌

PNC

Financial

Services

Group,

VR,

6.037%,

10/28/33 (5)

3,000‌

3,112‌

Royal

Bank

Canada,

VR,

4.969%,

8/2/30 (5)

170‌

Santander

Holdings

USA,

VR,

5.04%,

6/5/30 (5)

955‌

950‌

Santander

Holdings

USA,

VR,

6.342%,

5/31/35 (5)(6)

1,925‌

1,994‌

Santander

Holdings

USA,

VR,

6.499%,

3/9/29 (5)

885‌

905‌

Santander

Holdings

USA,

VR,

6.565%,

6/12/29 (5)

140‌

144‌

Santander

U.K.

Group

Holdings,

VR,

4.32%,

9/22/29 (5)

1,190‌

1,175‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Skandinaviska

Enskilda

Banken,

5.125%,

3/5/27 (1)

2,930‌

2,944‌

Societe

Generale,

5.25%,

2/19/27 (1)

1,230‌

1,235‌

Societe

Generale,

VR,

6.066%,

1/19/35 (1)(5)(6)

1,305‌

1,323‌

Standard

Chartered,

VR,

4.529%,

6/5/32 (1)(5)

2,965‌

2,873‌

Standard

Chartered,

VR,

5.243%,

1/13/37 (1)(5)

1,060‌

1,018‌

Toronto-Dominion

Bank,

4.994%,

4/5/29

2,200‌

2,214‌

Truist

Financial,

1.95%,

6/5/30

1,470‌

1,318‌

U.S.

Bancorp,

VR,

4.857%,

7/27/30 (5)

2,515‌

2,510‌

U.S.

Bancorp,

VR,

5.10%,

7/23/30 (5)

170‌

171‌

U.S.

Bancorp,

VR,

5.384%,

1/23/30 (5)

665‌

673‌

Wells

Fargo,

VR,

2.393%,

6/2/28 (5)

2,415‌

2,371‌

Wells

Fargo,

VR,

2.879%,

10/30/30 (5)

2,925‌

2,745‌

Wells

Fargo,

VR,

3.068%,

4/30/41 (5)

50‌

37‌

Wells

Fargo,

VR,

5.574%,

7/25/29 (5)

1,250‌

1,269‌

Wells

Fargo,

VR,

5.605%,

4/23/36 (5)

330‌

332‌

Wells

Fargo,

VR,

5.707%,

4/22/28 (5)

1,895‌

1,910‌

Wells

Fargo,

VR,

6.303%,

10/23/29 (5)

1,380‌

1,422‌

Westpac

New

Zealand,

5.195%,

2/28/29 (1)

1,935‌

1,954‌

156,977‌

Brokerage

Asset

Managers

Exchanges

0.4%

Charles

Schwab,

VR,

4.744%,

5/21/30 (5)

1,155‌

1,152‌

Charles

Schwab,

VR,

4.914%,

11/14/36 (5)

3,165‌

3,024‌

Intercontinental

Exchange,

1.85%,

9/15/32

1,735‌

1,448‌

Intercontinental

Exchange,

5.25%,

6/15/31

1,585‌

1,604‌

LPL

Holdings,

5.65%,

3/15/35

3,700‌

3,612‌

10,840‌

Finance

Companies

0.2%

Ares

Capital,

3.20%,

11/15/31

80‌

70‌

Avolon

Holdings

Funding,

6.375%,

5/4/28 (1)

1,560‌

1,596‌

GATX,

6.05%,

3/15/34

1,785‌

1,842‌

3,508‌

Financial

Other

0.2%

Atlas

Warehouse

Lending,

4.625%,

11/15/28 (1)

3,065‌

3,023‌

Sustainable

Infrastructure

Capital,

5.95%,

7/15/33 (1)

910‌

900‌

Sustainable

Infrastructure

Capital,

6.375%,

7/1/34

130‌

4,053‌

Insurance

3.1%

Allstate,

6.125%,

12/15/32

150‌

156‌

American

International

Group,

3.875%,

1/15/35

425‌

383‌

American

International

Group,

5.45%,

5/7/35

130‌

Aon

Corp.,

5.00%,

9/12/32

3,075‌

3,050‌

Arthur

Gallagher,

4.85%,

12/15/29

445‌

Athene

Global

Funding,

4.86%,

8/27/26 (1)

3,330‌

3,331‌

Athene

Global

Funding,

5.033%,

7/17/30 (1)

990‌

976‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Athene

Global

Funding,

5.543%,

8/22/35 (1)

140‌

136‌

Centene,

2.45%,

7/15/28

170‌

161‌

Centene,

3.375%,

2/15/30

1,545‌

1,431‌

CNA

Financial,

5.20%,

8/15/35

130‌

125‌

CNO

Global

Funding,

4.95%,

9/9/29 (1)

515‌

513‌

Corebridge

Global

Funding,

4.25%,

8/21/28 (1)

885‌

874‌

Corebridge

Global

Funding,

4.65%,

8/20/27 (1)(6)

1,075‌

1,076‌

Corebridge

Global

Funding,

4.80%,

5/29/29 (1)

2,560‌

2,551‌

Elevance

Health,

4.55%,

3/1/48

1,135‌

910‌

Elevance

Health,

4.65%,

1/15/43

485‌

414‌

Enact

Holdings,

6.25%,

5/28/29

505‌

518‌

Equitable

America

Global

Funding,

4.95%,

6/25/29 (1)

5,005‌

4,976‌

Fidelity

National

Financial,

4.50%,

8/15/28

1,615‌

1,604‌

Global

Funding

Trust,

5.50%,

7/17/31 (1)

2,475‌

2,458‌

Health

Care

Service

Corp.

Mutual

Legal

Reserve,

5.45%,

6/15/34 (1)

1,095‌

1,082‌

Humana,

5.375%,

4/15/31

785‌

788‌

Humana,

5.95%,

3/15/34

835‌

848‌

Jackson

National

Life

Global

Funding,

4.70%,

6/5/28 (1)

2,970‌

2,957‌

Jackson

National

Life

Global

Funding,

4.90%,

1/13/27 (1)

3,620‌

3,626‌

Liberty

Mutual

Group,

4.85%,

8/1/44 (1)

1,370‌

1,148‌

MassMutual

Global

Funding

II,

5.10%,

4/9/27 (1)

2,940‌

2,956‌

Met

Tower

Global

Funding,

4.00%,

1/14/29 (1)

1,895‌

1,862‌

New

York

Life

Global

Funding,

4.05%,

2/2/29 (1)

4,525‌

4,452‌

New

York

Life

Insurance,

3.75%,

5/15/50 (1)

1,415‌

992‌

Northwestern

Mutual

Global

Funding,

4.74%,

6/30/31 (1)

3,430‌

3,390‌

Pacific

Life

Global

Funding

II,

4.375%,

2/3/31 (1)

3,795‌

3,710‌

Pricoa

Global

Funding

4.35%,

11/25/30 (1)

5,380‌

5,244‌

Principal

Financial

Group,

2.125%,

6/15/30

1,900‌

1,710‌

Principal

Financial

Group,

3.70%,

5/15/29

10‌

Principal

Financial

Group,

4.111%,

2/15/28 (1)

1,100‌

1,090‌

RenaissanceRe

Holdings,

5.75%,

6/5/33

120‌

121‌

RGA

Global

Funding,

4.35%,

8/25/28 (1)

1,150‌

1,138‌

RGA

Global

Funding,

4.60%,

11/25/30 (1)

1,600‌

1,563‌

RGA

Global

Funding,

5.00%,

8/25/32 (1)

130‌

127‌

RGA

Global

Funding,

5.448%,

5/24/29 (1)

1,730‌

1,752‌

Sammons

Financial

Group,

5.95%,

6/15/36 (1)

1,795‌

1,758‌

Sammons

Financial

Group

Global

Funding,

4.80%,

12/12/30 (1)

1,790‌

1,752‌

Teachers

Insurance

Annuity

Association

America,

4.27%,

5/15/47 (1)

1,400‌

1,073‌

Travelers,

6.25%,

6/15/37

225‌

239‌

UnitedHealth

Group,

2.00%,

5/15/30

10‌

9‌

UnitedHealth

Group,

3.50%,

8/15/39

1,960‌

1,571‌

UnitedHealth

Group,

4.40%,

6/15/28

330‌

329‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

UnitedHealth

Group,

4.75%,

7/15/45

900‌

767‌

UnitedHealth

Group,

5.20%,

4/15/63

120‌

102‌

UnitedHealth

Group,

5.50%,

7/15/44

170‌

161‌

UnitedHealth

Group,

5.75%,

7/15/64

1,790‌

1,656‌

Willis

North

America,

4.50%,

9/15/28

1,110‌

1,104‌

77,305‌

Real

Estate

Investment

Trusts

1.1%

AvalonBay

Communities,

4.35%,

12/1/30

3,225‌

3,159‌

Brixmor

Operating

Partnership,

3.90%,

3/15/27

495‌

493‌

Brixmor

Operating

Partnership,

4.05%,

7/1/30

760‌

734‌

Brixmor

Operating

Partnership,

4.85%,

2/15/33

440‌

427‌

Essex

Portfolio,

2.65%,

3/15/32

660‌

579‌

Essex

Portfolio,

4.50%,

3/15/48

1,455‌

1,156‌

Essex

Portfolio,

4.875%,

2/15/36

3,050‌

2,897‌

Extra

Space

Storage,

4.00%,

6/15/29

15‌

Extra

Space

Storage,

4.95%,

1/15/33

755‌

738‌

Global

Net

Lease,

3.75%,

12/15/27 (1)

130‌

127‌

Healthcare

Realty

Holdings,

3.625%,

1/15/28

605‌

594‌

Healthpeak

OP,

2.125%,

12/1/28

710‌

670‌

Healthpeak

OP,

2.875%,

1/15/31

420‌

383‌

Healthpeak

OP,

5.375%,

2/15/35

140‌

138‌

Invitation

Homes

Operating

Partnership,

4.875%,

2/1/35

140‌

133‌

Kilroy

Realty,

5.875%,

10/15/35

130‌

126‌

Prologis,

4.00%,

9/15/28

2,110‌

2,084‌

Public

Storage

Operating,

1.95%,

11/9/28

1,285‌

1,212‌

Realty

Income,

2.20%,

6/15/28

685‌

656‌

Realty

Income,

3.95%,

8/15/27

835‌

831‌

Regency

Centers,

3.60%,

2/1/27

350‌

349‌

Regency

Centers,

4.125%,

3/15/28

520‌

516‌

Regency

Centers,

4.40%,

2/1/47

2,000‌

1,627‌

Regency

Centers,

5.25%,

1/15/34

1,340‌

1,332‌

Simon

Property

Group,

3.80%,

7/15/50

2,830‌

2,029‌

Simon

Property

Group,

4.30%,

1/15/31

1,120‌

1,091‌

Welltower

OP,

5.125%,

7/1/35

3,390‌

3,341‌

27,437‌

Total

Financial

Institutions

280,120‌

INDUSTRIAL

14.7%

Basic

Industry

0.4%

Anglo

American

Capital,

4.625%,

3/19/31 (1)

740‌

724‌

ArcelorMittal,

6.55%,

11/29/27

130‌

133‌

BHP

Billiton

Finance

USA,

4.75%,

2/28/28

150‌

Celulosa

Arauco

Constitucion,

3.875%,

11/2/27

570‌

562‌

Freeport-McMoRan,

4.125%,

3/1/28

140‌

139‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Freeport-McMoRan,

5.45%,

3/15/43

274‌

254‌

Nutrien,

4.00%,

12/15/26

525‌

524‌

Nutrien,

4.85%,

5/29/31

685‌

679‌

Sherwin-Williams,

4.80%,

9/1/31

2,400‌

2,377‌

Southern

Copper,

5.35%,

6/24/36

4,140‌

4,031‌

9,573‌

Capital

Goods

1.4%

Amcor

Flexibles

North

America,

5.10%,

3/17/30

140‌

Amphenol,

5.05%,

4/5/29

925‌

934‌

Boeing,

3.60%,

5/1/34

2,000‌

1,770‌

Boeing,

6.528%,

5/1/34

1,715‌

1,835‌

Boeing,

6.858%,

5/1/54

1,500‌

1,607‌

Caterpillar

Financial

Services,

5.00%,

5/14/27

4,225‌

4,250‌

CNH

Industrial

Capital,

4.375%,

3/7/31

4,400‌

4,264‌

CNH

Industrial

Capital,

4.50%,

10/8/27

130‌

CRH

America

Finance,

3.95%,

4/4/28 (1)

1,700‌

1,678‌

Flowserve,

5.70%,

5/15/36

460‌

450‌

Vernova,

4.875%,

2/4/36

2,920‌

2,806‌

Honeywell

Aerospace,

5.732%,

3/16/56 (1)

2,185‌

2,078‌

Howmet

Aerospace,

6.75%,

1/15/28

130‌

134‌

Ingersoll

Rand,

5.176%,

6/15/29

3,131‌

3,172‌

John

Deere

Capital,

4.40%,

9/8/31

2,530‌

2,481‌

John

Deere

Capital,

4.50%,

1/8/27

1,840‌

1,842‌

L3Harris

Technologies,

5.05%,

6/1/29

1,300‌

1,309‌

Lockheed

Martin,

4.07%,

12/15/42

184‌

150‌

Owens

Corning,

5.70%,

6/15/34

1,235‌

1,252‌

Parker-Hannifin,

3.25%,

6/14/29

140‌

135‌

Regal

Rexnord,

6.05%,

4/15/28

130‌

133‌

Regal

Rexnord,

6.40%,

4/15/33

1,640‌

1,710‌

RTX,

3.125%,

7/1/50

250‌

159‌

Tyco

Electronics

Group,

4.875%,

2/9/36

1,820‌

1,743‌

United

Rentals

North

America,

6.00%,

12/15/29 (1)

120‌

121‌

36,283‌

Communications

1.9%

America

Movil,

6.375%,

3/1/35

300‌

319‌

American

Tower,

4.70%,

12/15/32

1,120‌

1,085‌

AT&T,

2.75%,

6/1/31

3,300‌

2,972‌

AT&T,

4.35%,

3/1/29

1,020‌

1,008‌

AT&T,

4.55%,

11/1/32

1,285‌

1,234‌

AT&T,

5.40%,

2/15/34

2,415‌

2,397‌

Charter

Communications

Operating,

2.80%,

4/1/31

2,365‌

2,072‌

Charter

Communications

Operating,

3.70%,

4/1/51

1,795‌

1,056‌

Charter

Communications

Operating,

6.10%,

6/1/29

690‌

700‌

Comcast,

2.65%,

2/1/30

10‌

9‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Comcast,

3.20%,

7/15/36

80‌

65‌

Comcast,

5.50%,

5/15/64

2,490‌

1,995‌

Crown

Castle,

2.10%,

4/1/31

2,300‌

2,003‌

Crown

Castle,

2.25%,

1/15/31

1,665‌

1,468‌

Crown

Castle,

4.90%,

9/1/29

160‌

159‌

Meta

Platforms,

5.625%,

11/15/55

260‌

218‌

NTT

Finance,

4.876%,

7/16/30 (1)

1,160‌

1,148‌

Orange,

4.75%,

1/13/33 (1)

1,830‌

1,768‌

Rogers

Communications,

5.00%,

2/15/29

1,615‌

1,617‌

Rogers

Communications,

5.30%,

2/15/34

1,885‌

1,830‌

Space

Exploration

Technologies,

5.35%,

7/15/31 (1)

1,075‌

1,047‌

Space

Exploration

Technologies,

5.65%,

7/15/33 (1)

1,740‌

1,666‌

T-Mobile

USA,

3.75%,

4/15/27

3,565‌

3,547‌

T-Mobile

USA,

4.95%,

11/15/35

2,880‌

2,730‌

T-Mobile

USA,

5.00%,

2/15/36 (6)

1,300‌

1,232‌

T-Mobile

USA,

6.70%,

12/15/33

150‌

161‌

Telefonica

Europe,

8.25%,

9/15/30

130‌

144‌

Time

Warner

Cable,

6.55%,

5/1/37

395‌

375‌

Time

Warner

Cable,

6.75%,

6/15/39

2,580‌

2,430‌

Time

Warner

Enterprises,

8.375%,

7/15/33

50‌

54‌

Verizon

Communications,

1.68%,

10/30/30

625‌

547‌

Verizon

Communications,

4.00%,

3/22/50

1,500‌

1,079‌

Verizon

Communications,

4.75%,

1/15/33

1,930‌

1,870‌

46,236‌

Consumer

Cyclical

2.4%

Airbnb,

4.65%,

3/16/31

930‌

917‌

Alibaba

Group

Holding,

4.00%,

12/6/37

2,300‌

2,027‌

Amazon.com,

4.65%,

11/20/35

4,085‌

3,849‌

Amazon.com,

5.65%,

3/13/46

2,365‌

2,209‌

American

Honda

Finance,

4.55%,

7/9/27

1,645‌

1,646‌

American

Honda

Finance,

4.90%,

3/12/27 (6)

2,790‌

2,797‌

AutoZone,

1.65%,

1/15/31

2,000‌

1,732‌

AutoZone,

3.75%,

6/1/27

20‌

Booking

Holdings,

5.375%,

5/7/36

1,585‌

1,560‌

BorgWarner,

4.95%,

8/15/29

130‌

CBRE

Services,

4.90%,

1/15/33

745‌

725‌

CBRE

Services,

5.50%,

4/1/29

580‌

589‌

Daimler

Truck

Finance

North

America,

4.15%,

1/12/29 (1)

785‌

772‌

Daimler

Truck

Finance

North

America,

5.375%,

1/18/34 (1)

560‌

554‌

Denso,

4.864%,

6/29/31 (1)

4,400‌

4,377‌

Ford

Motor

Credit,

5.125%,

11/5/26

1,435‌

1,436‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Ford

Motor

Credit,

7.122%,

11/7/33

635‌

669‌

General

Motors,

6.60%,

4/1/36

150‌

158‌

General

Motors

Financial,

4.90%,

10/6/29

70‌

General

Motors

Financial,

5.45%,

1/8/36

4,150‌

4,052‌

General

Motors

Financial,

5.55%,

7/15/29

600‌

610‌

GLP

Capital,

3.25%,

1/15/32

150‌

133‌

Home

Depot,

5.875%,

12/16/36

3,000‌

3,115‌

Hyundai

Capital

America,

4.55%,

1/8/31 (1)

850‌

827‌

Hyundai

Capital

America,

4.75%,

6/18/29 (1)

1,300‌

1,291‌

Hyundai

Capital

America,

4.90%,

6/23/28 (1)

1,950‌

Hyundai

Capital

America,

5.35%,

3/19/29 (1)(6)

500‌

504‌

Hyundai

Capital

America,

5.40%,

6/23/32 (1)

120‌

Las

Vegas

Sands,

3.90%,

8/8/29

140‌

135‌

Lowe's,

4.25%,

3/15/31

2,370‌

2,299‌

Lowe's,

4.45%,

4/1/62

1,890‌

1,387‌

O'Reilly

Automotive,

3.60%,

9/1/27

20‌

O'Reilly

Automotive,

3.90%,

6/1/29

2,470‌

2,413‌

O'Reilly

Automotive,

5.75%,

11/20/26

390‌

391‌

PACCAR

Financial,

5.00%,

5/13/27

3,070‌

3,086‌

PACCAR

Financial,

5.20%,

11/9/26

2,895‌

2,902‌

Ross

Stores,

1.875%,

4/15/31

300‌

262‌

Royal

Caribbean

Cruises,

6.25%,

3/15/32 (1)

130‌

132‌

TJX,

1.60%,

5/15/31

1,425‌

1,231‌

Toyota

Motor

Credit,

4.05%,

9/5/28

2,680‌

2,654‌

Uber

Technologies,

4.30%,

1/15/30

2,710‌

2,659‌

VICI

Properties,

4.125%,

8/15/30 (1)

150‌

142‌

Volkswagen

Group

America

Finance,

4.95%,

8/15/29 (1)

495‌

493‌

59,045‌

Consumer

Non-Cyclical

3.1%

Abbott

Laboratories,

4.90%,

11/30/46

4,000‌

3,531‌

AbbVie,

4.50%,

5/14/35

1,235‌

1,167‌

AbbVie,

4.80%,

3/15/29

1,315‌

1,319‌

Agilent

Technologies,

4.90%,

1/15/32 (1)

5,335‌

5,283‌

Amgen,

2.60%,

8/19/26

1,275‌

1,274‌

Amgen,

2.77%,

9/1/53

1,239‌

690‌

Amgen,

5.15%,

3/2/28

1,615‌

1,628‌

Anheuser-Busch

InBev

Worldwide,

5.45%,

1/23/39

30‌

Astrazeneca

Finance,

4.875%,

3/3/28

2,300‌

2,315‌

Augusta

SpinCo,

4.656%,

3/23/31

2,095‌

2,061‌

Banner

Health,

1.897%,

1/1/31

850‌

750‌

BAT

Capital,

4.39%,

8/15/37

3,395‌

3,035‌

BAT

Capital,

5.834%,

2/20/31

845‌

872‌

Baxter

International,

3.95%,

4/1/30

140‌

134‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Bayer

U.S.

Finance,

5.125%,

7/20/31 (1)

790‌

783‌

Centra

Health,

4.70%,

1/1/48

25‌

19‌

Cigna

Group,

4.50%,

9/15/30

380‌

375‌

Cigna

Group,

4.90%,

12/15/48

2,100‌

1,765‌

CommonSpirit

Health,

2.782%,

10/1/30

980‌

898‌

CommonSpirit

Health,

3.91%,

10/1/50

40‌

29‌

Conopco,

6.625%,

4/15/28

5‌

CVS

Health,

1.875%,

2/28/31

1,135‌

989‌

CVS

Health,

3.25%,

8/15/29

180‌

172‌

CVS

Health,

4.125%,

4/1/40

50‌

41‌

CVS

Health,

5.00%,

9/15/32

420‌

416‌

CVS

Health,

5.125%,

7/20/45

925‌

804‌

CVS

Health,

5.40%,

6/1/29

1,360‌

1,381‌

CVS

Health,

6.00%,

6/1/63

2,705‌

2,509‌

Eli

Lilly,

4.90%,

10/15/35

4,400‌

4,304‌

Hackensack

Meridian

Health,

4.211%,

7/1/48

1,680‌

1,310‌

HCA,

4.125%,

6/15/29

1,695‌

1,663‌

HCA,

5.25%,

3/1/30

160‌

161‌

HCA,

5.45%,

9/15/34

890‌

884‌

Indiana

University

Health

Obligated

Group,

3.97%,

11/1/48

1,030‌

786‌

IQVIA,

6.25%,

2/1/29

735‌

755‌

JDE

Peet's,

1.375%,

1/15/27 (1)

1,245‌

1,226‌

Kenvue,

5.10%,

3/22/43

140‌

128‌

Keurig

Pepper,

2.55%,

9/15/26

450‌

449‌

Keurig

Pepper,

4.60%,

5/15/30

150‌

147‌

Kraft

Heinz

Foods,

5.00%,

6/4/42

160‌

138‌

Kraft

Heinz

Foods,

6.875%,

1/26/39

3,600‌

3,848‌

Maple

Parent

Holdings,

4.75%,

3/26/29 (1)

1,550‌

1,543‌

Mars,

4.60%,

3/1/28 (1)

2,120‌

2,121‌

Mars,

4.80%,

3/1/30 (1)

120‌

Mattel,

5.45%,

11/1/41

130‌

117‌

McCormick,

4.15%,

2/15/29

1,430‌

1,408‌

Medline

Borrower,

6.25%,

4/1/29 (1)

80‌

81‌

MedStar

Health,

Series

20A,

3.626%,

8/15/49

920‌

646‌

Memorial

Sloan-Kettering

Cancer

Center,

Series

2015,

4.20%,

7/1/55

600‌

458‌

Mondelez

International,

4.75%,

2/20/29

3,800‌

3,805‌

Nestle

Holdings,

4.85%,

3/14/33 (1)

2,700‌

2,677‌

Northwell

Healthcare,

3.979%,

11/1/46

1,275‌

970‌

Pfizer,

4.50%,

11/15/32

3,245‌

3,161‌

Revvity,

1.90%,

9/15/28

1,575‌

1,483‌

Revvity,

3.30%,

9/15/29

130‌

124‌

Roche

Holdings,

4.075%,

12/2/30 (1)

2,110‌

2,050‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Solventum,

5.40%,

3/1/29

673‌

681‌

Stanford

Health

Care,

Series

2018,

3.795%,

11/15/48

440‌

325‌

West

Virginia

United

Health

System

Obligated

Group,

Series

2018,

4.924%,

6/1/48

1,620‌

1,335‌

Zoetis,

4.15%,

8/17/28

3,805‌

3,773‌

76,952‌

Energy

2.4%

Boardwalk

Pipelines,

3.40%,

2/15/31

2,130‌

1,975‌

Cameron

LNG,

2.902%,

7/15/31 (1)

520‌

471‌

Cameron

LNG,

3.701%,

1/15/39 (1)

430‌

356‌

Canadian

Natural

Resources,

2.95%,

7/15/30

1,520‌

1,412‌

Cheniere

Energy,

5.20%,

7/30/36 (1)

3,500‌

3,384‌

Cheniere

Energy

Partners,

5.75%,

8/15/34

1,865‌

1,887‌

Chevron

USA,

4.30%,

10/15/30

2,275‌

2,244‌

Columbia

Pipelines

Holding,

4.999%,

11/17/32 (1)

3,405‌

3,326‌

Diamondback

Energy,

3.50%,

12/1/29

160‌

153‌

Diamondback

Energy,

5.15%,

1/30/30

550‌

554‌

Enbridge,

4.20%,

11/20/28

2,255‌

2,230‌

Enbridge,

4.25%,

12/1/26

355‌

Enbridge,

4.60%,

6/20/28

340‌

339‌

Enbridge,

5.50%,

12/1/46

555‌

512‌

Enbridge,

5.625%,

4/5/34

795‌

804‌

Enbridge,

6.70%,

11/15/53

610‌

639‌

Enbridge

Energy

Partners,

5.50%,

9/15/40

170‌

163‌

Energy

Transfer,

5.35%,

1/15/36

2,060‌

2,014‌

Energy

Transfer,

5.60%,

9/1/34

1,505‌

1,510‌

Energy

Transfer,

6.50%,

2/1/42

160‌

164‌

Eni,

5.50%,

5/15/34 (1)

845‌

843‌

Eni,

5.95%,

5/15/54 (1)

930‌

878‌

Enterprise

Products

Operating,

4.30%,

6/20/28

1,145‌

1,140‌

Enterprise

Products

Operating,

4.60%,

1/11/27

2,845‌

2,848‌

Enterprise

Products

Operating,

4.60%,

1/15/31

2,110‌

2,087‌

EOG

Resources,

4.40%,

7/15/28

1,295‌

1,291‌

EOG

Resources,

4.40%,

1/15/31

1,055‌

1,034‌

Kinder

Morgan,

5.20%,

6/1/33

1,800‌

1,796‌

Marathon

Petroleum,

5.15%,

3/1/30

1,955‌

1,969‌

MPLX,

4.80%,

2/15/31

2,150‌

2,122‌

MPLX,

5.65%,

3/1/53

1,600‌

1,430‌

Occidental

Petroleum,

5.375%,

1/1/32 (6)

1,430‌

1,441‌

Occidental

Petroleum,

8.875%,

7/15/30

130‌

145‌

ONEOK,

4.40%,

10/15/29

60‌

59‌

ONEOK,

4.75%,

10/15/31

1,340‌

1,312‌

ONEOK,

6.05%,

9/1/33

120‌

124‌

ONEOK,

6.625%,

9/1/53

2,400‌

2,408‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Ovintiv,

6.25%,

7/15/33

130‌

135‌

Patterson-UTI

Energy,

7.15%,

10/1/33

120‌

127‌

Phillips

66,

5.875%,

5/1/42

150‌

148‌

Plains

All

American

Pipeline,

5.95%,

6/15/35

140‌

142‌

Sabine

Pass

Liquefaction,

4.20%,

3/15/28

815‌

809‌

Sabine

Pass

Liquefaction,

4.50%,

5/15/30

655‌

644‌

Schlumberger

Holdings,

3.90%,

5/17/28 (1)

130‌

128‌

Spectra

Energy

Partners,

3.375%,

10/15/26

460‌

459‌

Targa

Resources,

6.50%,

3/30/34

150‌

159‌

TotalEnergies

Capital,

5.638%,

4/5/64

160‌

147‌

TotalEnergies

Capital

USA,

4.569%,

1/13/33

3,240‌

3,142‌

Transcontinental

Gas

Pipe

Line,

4.60%,

3/15/48

790‌

639‌

Williams,

4.625%,

6/30/30

1,480‌

1,461‌

Williams,

4.85%,

3/1/48

190‌

158‌

Williams,

4.90%,

3/15/29

1,415‌

1,418‌

Woodside

Finance,

3.70%,

9/15/26 (1)

330‌

Woodside

Finance,

3.70%,

3/15/28 (1)

435‌

427‌

Woodside

Finance,

4.50%,

3/4/29 (1)

1,435‌

1,419‌

Woodside

Finance,

5.40%,

5/19/30

130‌

131‌

59,442‌

Industrial

Other

0.2%

Booz

Allen

Hamilton,

5.95%,

4/15/35 (6)

4,170‌

4,100‌

Georgetown

University,

Series

4.315%,

4/1/49

1,475‌

1,171‌

President

Fellows

Harvard

College,

3.619%,

10/1/37

385‌

332‌

5,603‌

Technology

2.1%

Accenture

Capital,

4.05%,

10/4/29

140‌

137‌

Alphabet,

4.50%,

5/15/35

170‌

162‌

Alphabet,

4.80%,

2/15/36

2,685‌

2,564‌

Alphabet,

5.35%,

11/15/45

60‌

55‌

Broadcom,

4.60%,

7/15/30

1,115‌

1,095‌

Broadcom,

4.60%,

1/15/33

2,075‌

1,977‌

Broadcom,

4.80%,

4/15/28

3,290‌

3,296‌

Cadence

Design

Systems,

4.20%,

9/10/27

130‌

129‌

Cadence

Design

Systems,

4.30%,

9/10/29

1,090‌

1,074‌

Dell

International,

4.75%,

7/15/31

2,020‌

1,986‌

Fidelity

National

Information

Services,

4.80%,

3/10/31

2,165‌

2,125‌

Fiserv,

3.50%,

7/1/29

170‌

163‌

Fiserv,

5.45%,

3/15/34

2,125‌

2,070‌

Fiserv,

5.60%,

3/2/33

2,500‌

2,490‌

Foundry

Holdco,

5.90%,

1/25/33 (1)

765‌

779‌

Foundry

Holdco,

6.15%,

1/25/32 (1)

885‌

913‌

Foundry

Holdco,

6.20%,

1/25/37 (1)

3,300‌

3,377‌

Gartner,

5.60%,

11/20/35

170‌

160‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Global

Payments,

3.20%,

8/15/29

160‌

151‌

Intel,

4.00%,

8/5/29

130‌

127‌

Intel,

4.80%,

10/1/41

170‌

145‌

Leidos,

2.30%,

2/15/31

170‌

150‌

Motorola

Solutions,

5.00%,

4/15/29

835‌

839‌

Motorola

Solutions,

5.60%,

6/1/32

130‌

132‌

NXP,

3.15%,

5/1/27

395‌

391‌

NXP,

4.30%,

8/19/28

590‌

585‌

Oracle,

3.60%,

4/1/40

120‌

83‌

Oracle,

5.20%,

9/26/35

3,145‌

2,824‌

Oracle,

5.375%,

7/15/40

2,925‌

2,445‌

Oracle,

6.15%,

11/9/29

140‌

142‌

Oracle,

6.90%,

11/9/52

1,485‌

1,337‌

Paychex,

5.35%,

4/15/32

130‌

Qorvo,

3.375%,

4/1/31 (1)

3,700‌

3,374‌

Qorvo,

4.375%,

10/15/29

689‌

664‌

RELX

Capital,

3.00%,

5/22/30

1,120‌

1,045‌

RELX

Capital,

4.75%,

3/27/30

130‌

129‌

Roper

Technologies,

3.80%,

12/15/26

660‌

658‌

ServiceNow,

1.40%,

9/1/30

3,710‌

3,230‌

Synopsys,

5.15%,

4/1/35

3,000‌

2,913‌

VeriSign,

5.10%,

7/15/31

2,305‌

2,296‌

VMware,

1.40%,

8/15/26

3,475‌

3,471‌

51,813‌

Transportation

0.8%

American

Airlines

PTT,

Series

2019-1,

Class

AA,

3.15%,

2/15/32

24‌

22‌

Burlington

Northern

Santa

Fe,

6.15%,

5/1/37

100‌

106‌

Canadian

National

Railway,

5.85%,

11/1/33

920‌

968‌

Canadian

National

Railway,

6.25%,

8/1/34

95‌

102‌

Canadian

Pacific

Railway,

1.75%,

12/2/26

845‌

838‌

Canadian

Pacific

Railway,

2.875%,

11/15/29

1,140‌

1,076‌

Canadian

Pacific

Railway,

3.50%,

5/1/50

1,155‌

786‌

Canadian

Pacific

Railway,

4.70%,

5/1/48

720‌

605‌

Element

Fleet

Management,

4.641%,

11/24/30 (1)

3,370‌

3,297‌

ERAC

USA

Finance,

4.50%,

2/15/45 (1)

260‌

216‌

ERAC

USA

Finance,

4.90%,

5/1/33 (1)

1,595‌

1,560‌

FedEx,

3.10%,

8/5/29

170‌

162‌

FedEx,

4.40%,

1/15/47

6,500‌

5,329‌

Sydney

Airport

Finance,

5.248%,

3/26/36 (1)

2,110‌

2,045‌

Transurban

Finance,

2.45%,

3/16/31 (1)

1,820‌

1,626‌

Transurban

Finance,

3.375%,

3/22/27 (1)

128‌

127‌

United

Airlines

PTT,

Series

2016-2,

Class

3.10%,

10/7/28

531‌

509‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

United

Airlines

PTT,

Series

2018-1,

Class

3.70%,

3/1/30

767‌

726‌

20,100‌

Total

Industrial

365,047‌

UTILITY

2.5%

Electric

2.2%

AES,

5.20%,

7/15/29

240‌

AES,

5.75%,

7/15/33

305‌

302‌

Ameren,

5.00%,

5/15/36

1,745‌

1,672‌

Ameren,

5.70%,

12/1/26

1,820‌

1,826‌

American

Electric

Power,

5.20%,

1/15/29

2,595‌

2,622‌

Berkshire

Hathaway

Energy,

6.125%,

4/1/36

170‌

177‌

CenterPoint

Energy

Houston

Electric,

Series

K2,

6.95%,

3/15/33

100‌

109‌

Chpe,

5.10%,

6/30/33 (1)

1,040‌

1,020‌

CMS

Energy,

4.875%,

3/1/44

635‌

542‌

Constellation

Energy

Generation,

4.40%,

1/15/31

1,775‌

1,729‌

Dominion

Energy,

5.35%,

6/15/36

1,920‌

1,868‌

DTE

Energy,

5.10%,

3/1/29

2,645‌

2,665‌

DTE

Energy,

5.85%,

6/1/34

390‌

400‌

Duke

Energy,

2.65%,

9/1/26

355‌

Duke

Energy,

4.95%,

9/15/35

1,045‌

1,001‌

Duke

Energy

Florida,

4.85%,

12/1/35

2,210‌

2,118‌

Duke

Energy

Florida,

6.35%,

9/15/37

170‌

180‌

Duke

Energy

Indiana,

Series

DDDD,

4.95%,

3/15/36

120‌

116‌

Duke

Energy

Progress,

6.30%,

4/1/38

100‌

105‌

ENEL

Finance

International,

4.375%,

9/30/30 (1)

1,815‌

1,769‌

Eversource

Energy,

5.85%,

4/15/31

170‌

175‌

FirstEnergy,

2.65%,

3/1/30

150‌

138‌

FirstEnergy

Pennsylvania

Electric,

4.30%,

1/15/29 (1)

2,320‌

2,293‌

FirstEnergy

Transmission,

5.00%,

1/15/35

610‌

590‌

Florida

Power

Light,

5.30%,

6/15/34

3,040‌

3,046‌

Georgia

Power,

4.95%,

5/17/33

895‌

885‌

Mid-Atlantic

Interstate

Transmission,

4.10%,

5/15/28 (1)

1,765‌

1,748‌

Nevada

Power,

Series

6.65%,

4/1/36

400‌

430‌

New

York

State

Electric

Gas,

5.30%,

8/15/34 (1)

1,195‌

1,184‌

NextEra

Energy

Capital

Holdings,

4.40%,

3/1/31

2,245‌

2,196‌

Niagara

Mohawk

Power,

4.647%,

10/3/30 (1)

1,165‌

1,146‌

Niagara

Mohawk

Power,

5.112%,

1/12/36 (1)

3,270‌

3,135‌

Pacific

Gas

Electric,

2.10%,

8/1/27

1,985‌

1,931‌

Pacific

Gas

Electric,

5.00%,

6/4/28

170‌

171‌

Pacific

Gas

Electric,

6.40%,

6/15/33

40‌

42‌

PECO

Energy,

5.95%,

10/1/36

150‌

155‌

Public

Service

Electric

Gas,

5.70%,

12/1/36

180‌

185‌

Public

Service

Enterprise

Group,

4.80%,

6/15/31

3,685‌

3,641‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Public

Service

Oklahoma,

5.20%,

1/15/35

170‌

166‌

San

Diego

Gas

Electric,

Series

FFF,

6.125%,

9/15/37

170‌

176‌

San

Diego

Gas

Electric,

Series

TTT,

4.10%,

6/15/49

1,790‌

1,335‌

Southern,

4.40%,

7/1/46

1,935‌

1,548‌

Southern,

5.70%,

3/15/34

725‌

738‌

Southern

California

Edison,

5.15%,

6/1/29

2,105‌

2,116‌

Southwestern

Public

Service,

6.00%,

6/1/54

365‌

353‌

Tampa

Electric,

6.15%,

5/15/37

700‌

727‌

Vistra

Operations,

5.25%,

4/30/33 (1)

2,745‌

2,680‌

53,746‌

Natural

Gas

0.3%

APA

Infrastructure,

5.125%,

9/16/34 (1)

475‌

461‌

Engie,

5.625%,

4/10/34 (1)

660‌

671‌

NiSource,

1.70%,

2/15/31

1,280‌

1,109‌

NiSource,

3.49%,

5/15/27

710‌

705‌

NiSource,

3.95%,

3/30/48

1,000‌

730‌

NiSource,

5.35%,

4/1/34

1,850‌

Sempra,

5.25%,

3/15/36

880‌

850‌

Southern

California

Gas,

Series

KK,

5.75%,

11/15/35

140‌

143‌

Southern

Gas

Capital,

4.95%,

9/15/34

1,735‌

1,684‌

8,203‌

Total

Utility

61,949‌

Total

Corporate

Bonds

(Cost

$732,754)

707,116‌

FOREIGN

GOVERNMENT

OBLIGATIONS

MUNICIPALITIES

1.7%

Local

Authorities

0.7%

Province

Alberta,

3.30%,

3/15/28

1,605‌

1,579‌

Province

Alberta

Canada,

4.50%,

1/24/34

1,405‌

1,380‌

Province

British

Columbia,

4.20%,

7/6/33

2,644‌

2,554‌

Province

Manitoba

Canada,

4.30%,

7/27/33

2,045‌

1,986‌

Province

New

Brunswick,

3.625%,

2/24/28

2,545‌

2,516‌

Province

Ontario,

3.70%,

9/17/29

4,360‌

4,266‌

Province

Quebec,

Series

PD,

7.50%,

9/15/29

104‌

113‌

Province

Quebec

Canada,

Series

RI,

4.625%,

6/3/36

3,425‌

3,329‌

17,723‌

Owned

Guarantee

0.0%

Autoridad

del

Canal

Panama,

4.95%,

7/29/35 (1)

295‌

288‌

Corp

Nacional

del

Cobre

Chile,

3.75%,

1/15/31 (1)

570‌

533‌

821‌

Sovereign

1.0%

Eagle

Funding

Luxco,

5.50%,

8/17/30 (1)

2,720‌

2,718‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Government

Qatar,

3.75%,

4/16/30 (1)

730‌

703‌

Kingdom

Saudi

Arabia,

5.375%,

1/13/31 (1)

2,010‌

2,030‌

Republic

Chile,

5.65%,

1/13/37

3,740‌

3,794‌

Republic

Peru,

5.375%,

2/8/35

740‌

732‌

Republic

Poland,

Series

30Y,

5.50%,

3/18/54

2,365‌

2,118‌

Republic

Poland

Government

International

Bond,

Series

10Y,

5.75%,

11/16/32

2,350‌

2,429‌

Republic

Romania,

6.625%,

5/16/36 (1)

3,300‌

3,322‌

United

Mexican

States,

2.659%,

5/24/31

5,154‌

4,544‌

United

Mexican

States,

6.125%,

2/9/38

850‌

815‌

23,205‌

Total

Foreign

Government

Obligations

Municipalities

(Cost

$42,813)

41,749‌

MUNICIPAL

SECURITIES

1.2%

California

0.2%

Bay

Area

Toll

Auth.,

Toll

Bridge

Revenue

Bonds,

Series S-10,

3.176%,

4/1/41

1,275‌

998‌

California,

Build

America,

GO,

7.625%,

3/1/40

1,350‌

1,550‌

Los

Angeles

Airport,

Series C,

Build

America,

7.053%,

5/15/40

700‌

767‌

Regents

the

Univ.

California

Medical

Center

Revenue

Bonds,

Series N,

3.256%,

5/15/60

700‌

422‌

San

Diego

County

Water

Auth.,

Series B,

Build

America,

6.138%,

5/1/49

270‌

271‌

San

Jose

Redev.

Agency,

Senior

Tax

Allocation,

Series A-T,

3.375%,

8/1/34

610‌

563‌

4,571‌

Florida

0.0%

Florida

Dev.

Finance,

Nova

Southeastern

Univ.,

Series B,

4.109%,

4/1/50

1,425‌

1,124‌

Georgia

0.2%

Fulton

County,

Series 2010-B,

Build

America,

GO,

5.148%,

7/1/39

2,660‌

2,610‌

Municipal

Electric

Auth.

Georgia,

Build

America,

Vogtle

Units,

6.655%,

4/1/57

1,668‌

1,736‌

4,346‌

Illinois

0.1%

Chicago

O'Hare

Int'l

Airport,

Series B,

Build

America,

6.395%,

1/1/40

1,350‌

1,427‌

Illinois

Toll

Highway

Auth.,

Series A,

Build

America,

6.184%,

1/1/34

315‌

327‌

Metropolitan

Water

Reclamation

Dist.

Greater

Chicago,

Build

America,

GO,

5.72%,

12/1/38

480‌

2,234‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Maryland

0.1%

Maryland

Economic

Dev.,

Seagirt

Marine

Terminal,

Series B,

4.75%,

6/1/42

2,045‌

1,722‌

Michigan

0.1%

Detroit

City

School

Dist.,

Qualified

School

Construction

Bonds,

GO,

6.645%,

5/1/29

1,255‌

1,316‌

Minnesota

0.1%

Western

Minnesota

Municipal

Power

Agency,

Series A,

3.156%,

1/1/39

2,350‌

1,950‌

New

Jersey

0.0%

New

Jersey

Turnpike

Auth.,

Series F,

Build

America,

7.414%,

1/1/40

1,000‌

1,142‌

New

York

0.0%

Dormitory

Auth.

the

State

New

York,

New

York

Univ.,

Series B,

3.879%,

7/1/46

950‌

731‌

Metropolitan

Transportation

Auth.,

Dedicated

Tax

Fund,

Build

America,

7.336%,

11/15/39

125‌

141‌

872‌

Ohio

0.1%

American

Municipal

Power,

Series B,

Build

America,

6.449%,

2/15/44

2,005‌

2,054‌

Texas

0.2%

Central

Texas

Turnpike

System,

Series C,

3.029%,

8/15/41

40‌

30‌

Dallas/Fort

Worth

Int'l

Airport,

Series A,

2.994%,

11/1/38

15‌

13‌

Dallas/Fort

Worth

Int'l

Airport,

Series C,

3.089%,

11/1/40

3,945‌

3,080‌

Grand

Parkway

Transportation,

Series B,

3.236%,

10/1/52

15‌

10‌

Texas

Natural

Gas

Securitization

Fin.,

Series 2023-1,

Class

A2,

5.169%,

4/1/41

705‌

700‌

Texas

Private

Activity

Bond

Surface

Transportation,

North

Tarrant

Express,

Series B,

3.922%,

12/31/49

2,400‌

1,844‌

5,677‌

Virginia

0.0%

Virginia

Public

Building

Auth.,

Series B-2,

Build

America,

5.90%,

8/1/30

540‌

546‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Wisconsin

0.1%

PFA,

Bayhealth

Medical

Center,

Series B,

3.405%,

7/1/51

2,520‌

1,666‌

Total

Municipal

Securities

(Cost

$34,183)

29,220‌

NON-U.S.

GOVERNMENT

MORTGAGE-BACKED

SECURITIES

4.9%

Collateralized

Mortgage

Obligations

2.5%

Angel

Oak

Mortgage

Trust

Series

2020-6,

Class

A2,

CMO,

ARM,

1.518%,

5/25/65 (1)

214‌

200‌

Angel

Oak

Mortgage

Trust

Series

2021-1,

Class

A1,

CMO,

ARM,

0.909%,

1/25/66 (1)

706‌

613‌

Arroyo

Mortgage

Trust

Series

2019-2,

Class

A2,

CMO,

ARM,

3.498%,

4/25/49 (1)

130‌

126‌

Barclays

Mortgage

Loan

Trust

Series

2021-NQM1,

Class

A3,

CMO,

ARM,

2.189%,

9/25/51 (1)

632‌

572‌

Barclays

Mortgage

Loan

Trust

Series

2026-NQM6,

Class

A1,

CMO,

ARM,

5.76%,

7/25/66 (1)

1,565‌

1,566‌

Bayview

Financing

Trust

Series

2024-2F,

Class

CMO,

ARM,

6.383%,

9/25/29,

Acquisition

Date:

8/29/24,

Cost $1,494 (2)(4)

1,494‌

1,498‌

Citigroup

Mortgage

Loan

Trust

Series

2020-EXP2,

Class

A3,

CMO,

ARM,

2.50%,

8/25/50 (1)

943‌

813‌

COLT

Mortgage

Loan

Trust

Series

2025-8,

Class

A1,

CMO,

STEP,

5.48%,

8/25/70 (1)

1,655‌

1,656‌

Connecticut

Avenue

Securities

Trust

Series

2023-R04,

Class

1M1,

CMO,

ARM,

SOFR30A

2.30%,

5.916%,

5/25/43 (1)

1,209‌

1,226‌

Connecticut

Avenue

Securities

Trust

Series

2026-R02,

Class

1M1,

CMO,

ARM,

SOFR30A

1.05%,

4.666%,

2/25/46 (1)

618‌

617‌

Deephaven

Residential

Mortgage

Trust

Series

2026-INV1,

Class

A1,

CMO,

ARM,

4.797%,

12/25/70 (1)

1,458‌

1,436‌

EFMT

Series

2025-INV1,

Class

A1,

CMO,

STEP,

5.626%,

3/25/70 (1)

416‌

EFMT

Series

2025-INV5,

Class

A1,

CMO,

ARM,

5.077%,

12/25/70 (1)

771‌

764‌

EFMT

Series

2025-NQM5,

Class

A1,

CMO,

ARM,

5.033%,

11/25/70 (1)

333‌

330‌

EFMT

Series

2025-NQM6,

Class

A1,

CMO,

ARM,

5.001%,

12/25/70 (1)

525‌

519‌

EFMT

Series

2026-NQM1,

Class

A1F,

CMO,

ARM,

SOFR30A

1.20%,

4.816%,

2/25/71 (1)

1,044‌

1,043‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

EFMT

Series

2026-NQM6,

Class

A1,

CMO,

ARM,

5.466%,

6/25/71 (1)

1,782‌

1,772‌

Ellington

Financial

Mortgage

Trust

Series

2019-2,

Class

A3,

CMO,

ARM,

3.046%,

11/25/59 (1)

40‌

39‌

Ellington

Financial

Mortgage

Trust

Series

2020-2,

Class

A1,

CMO,

ARM,

1.178%,

10/25/65 (1)

302‌

289‌

Galton

Funding

Mortgage

Trust

Series

2018-1,

Class

A23,

CMO,

ARM,

3.50%,

11/25/57 (1)

29‌

26‌

GCAT

Trust

Series

2025-NQM1,

Class

A1,

CMO,

STEP,

5.373%,

11/25/69 (1)

1,050‌

1,045‌

GCAT

Trust

Series

2025-NQM4,

Class

A1,

CMO,

STEP,

5.529%,

6/25/70 (1)

2,157‌

2,152‌

Mortgage-Backed

Securities

Trust

Series

2020-INV1,

Class

A14,

CMO,

ARM,

2.906%,

10/25/50 (1)

868‌

736‌

Mortgage-Backed

Securities

Trust

Series

2025-NQM3,

Class

A1,

CMO,

STEP,

5.137%,

11/25/65 (1)

1,208‌

1,201‌

HOMES

Trust

Series

2025-NQM4,

Class

A1,

CMO,

ARM,

5.22%,

8/25/70 (1)

2,287‌

2,271‌

HOMES

Trust

Series

2026-AFC1,

Class

A1,

CMO,

ARM,

4.846%,

2/25/61 (1)

2,504‌

2,474‌

JPMorgan

Mortgage

Trust

Series

2019-HYB1,

Class

B4,

CMO,

ARM,

5.148%,

10/25/49 (1)

1,045‌

1,038‌

JPMorgan

Mortgage

Trust

Series

2023-DSC2,

Class

A1,

CMO,

ARM,

5.25%,

11/25/63 (1)

449‌

439‌

JPMorgan

Mortgage

Trust

Series

2025-DSC2,

Class

A1,

CMO,

ARM,

5.195%,

10/25/65 (1)

1,392‌

1,377‌

JPMorgan

Mortgage

Trust

Series

2025-NQM3,

Class

A1,

CMO,

ARM,

5.495%,

11/25/65 (1)

3,518‌

3,511‌

MetLife

Securitization

Trust

Series

2018-1A,

Class

CMO,

ARM,

3.75%,

3/25/57 (1)

521‌

501‌

Morgan

Stanley

Residential

Mortgage

Loan

Trust

Series

2025-DSC2,

Class

A1,

CMO,

ARM,

5.443%,

7/25/70 (1)

341‌

340‌

Morgan

Stanley

Residential

Mortgage

Loan

Trust

Series

2025-NQM5,

Class

A1,

CMO,

ARM,

5.439%,

7/25/70 (1)

279‌

278‌

New

Residential

Mortgage

Loan

Trust

Series

2025-NQM3,

Class

A1,

CMO,

ARM,

5.53%,

5/25/65 (1)

947‌

944‌

New

Residential

Mortgage

Loan

Trust

Series

2025-NQM4,

Class

A1,

CMO,

ARM,

5.35%,

7/25/65 (1)

2,662‌

2,648‌

NYMT

Loan

Trust

Series

2025-INV1,

Class

A1,

CMO,

STEP,

5.402%,

4/25/60 (1)

1,010‌

1,007‌

OBX

Trust

Series

2019-EXP3,

Class

1A9,

CMO,

ARM,

3.50%,

10/25/59 (1)

89‌

82‌

OBX

Trust

Series

2019-EXP3,

Class

2A2,

CMO,

ARM,

TSFR

1.214%,

4.939%,

10/25/59 (1)

6‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

OBX

Trust

Series

2025-NQM15,

Class

A1,

CMO,

ARM,

5.143%,

7/27/65 (1)

1,126‌

1,119‌

OBX

Trust

Series

2025-NQM15,

Class

A1F,

CMO,

ARM,

SOFR30A

1.15%,

4.766%,

7/27/65 (1)

593‌

594‌

OBX

Trust

Series

2026-R1,

Class

A1,

CMO,

ARM,

4.884%,

1/25/63 (1)

2,952‌

2,911‌

PENN

Commercial

Mortgage

Trust

Series

2025-P11,

Class

ARM,

CMO,

5.344%,

8/10/42 (1)

2,820‌

2,826‌

RCKT

Mortgage

Trust

Series

2024-CES9,

Class

A1A,

CMO,

STEP,

5.582%,

12/25/44 (1)

220‌

Santander

Mortgage

Asset

Receivable

Trust

Series

2025-NQM6,

Class

A1,

CMO,

ARM,

5.138%,

11/25/65 (1)

406‌

402‌

Sequoia

Mortgage

Trust

Series

2018-CH2,

Class

A3,

CMO,

ARM,

4.00%,

6/25/48 (1)

73‌

65‌

Sequoia

Mortgage

Trust

Series

2024-HYB1,

Class

A1A,

CMO,

ARM,

4.508%,

11/25/63 (1)

1,029‌

1,025‌

Starwood

Mortgage

Residential

Trust

Series

2020-INV1,

Class

A1,

CMO,

ARM,

1.027%,

11/25/55 (1)

105‌

102‌

Structured

Agency

Credit

Risk

Debt

Notes

Series

2024-HQA2,

Class

A1,

CMO,

ARM,

SOFR30A

1.25%,

4.866%,

8/25/44 (1)

1,032‌

1,036‌

Structured

Agency

Credit

Risk

Debt

Notes

Series

2025-DNA3,

Class

M1,

CMO,

ARM,

SOFR30A

1.10%,

4.716%,

9/25/45 (1)

1,090‌

Structured

Agency

Credit

Risk

Debt

Notes

Series

2025-HQA1,

Class

A1,

CMO,

ARM,

SOFR30A

0.95%,

4.566%,

2/25/45 (1)

483‌

484‌

Towd

Point

Mortgage

Trust

Series

2019-HY3,

Class

M1,

CMO,

ARM,

TSFR

1.614%,

5.339%,

10/25/59 (1)

510‌

513‌

Towd

Point

Mortgage

Trust

Series

2024-2,

Class

A1B,

CMO,

ARM,

4.922%,

12/25/64 (1)

4,946‌

4,928‌

Towd

Point

Mortgage

Trust

Series

2025-1,

Class

A1B,

CMO,

ARM,

4.817%,

6/25/65 (1)

585‌

580‌

Towd

Point

Mortgage

Trust

Series

2026-1,

Class

A1A,

CMO,

ARM,

4.131%,

1/25/66 (1)

1,627‌

1,600‌

Verus

Securitization

Trust

Series

2021-1,

Class

A1,

CMO,

ARM,

0.815%,

1/25/66 (1)

326‌

295‌

Verus

Securitization

Trust

Series

2024-INV1,

Class

A2,

CMO,

STEP,

6.318%,

3/25/69 (1)

940‌

943‌

Verus

Securitization

Trust

Series

2025-7,

Class

A1F,

CMO,

ARM,

SOFR30A

1.20%,

4.816%,

8/25/70 (1)

1,751‌

1,752‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Verus

Securitization

Trust

Series

2026-6,

Class

A1,

CMO,

ARM,

5.513%,

7/27/71 (1)

1,985‌

1,982‌

62,038‌

Commercial

Mortgage-Backed

Securities

2.4%

BANK

Series

2025-BNK51,

Class

A5,

5.29%,

12/25/67

1,580‌

1,571‌

BANK

Series

2026-BNK52,

Class

A5,

5.586%,

5/15/69

1,705‌

1,733‌

BANK5

Series

2024-5YR12,

Class

A3,

ARM,

5.902%,

12/15/57

2,490‌

2,549‌

BANK5

Series

2024-5YR8,

Class

AS,

ARM,

6.378%,

8/15/57

1,045‌

1,069‌

BANK5

Series

2025-5YR14,

Class

A3,

5.646%,

4/15/58

3,310‌

3,367‌

BANK5

Series

2026-5YR20,

Class

A3,

5.104%,

2/15/59

90‌

BBCMS

Mortgage

Trust

Series

2019-BWAY,

Class

ARM,

TSFR

2.274%,

5.95%,

11/15/34 (1)

545‌

7‌

BBCMS

Mortgage

Trust

Series

2024-5C27,

Class

A3,

6.014%,

7/15/57

410‌

419‌

Benchmark

Mortgage

Trust

Series

2023-B39,

Class

A5,

5.754%,

7/15/56

1,220‌

1,250‌

Benchmark

Mortgage

Trust

Series

2024-V8,

Class

AM,

ARM,

6.628%,

7/15/57

3,465‌

3,584‌

Benchmark

Mortgage

Trust

Series

2025-B41,

Class

A5,

5.407%,

7/15/68

720‌

722‌

Benchmark

Mortgage

Trust

Series

2025-V19,

Class

A3,

5.249%,

1/15/58

235‌

236‌

Benchmark

Mortgage

Trust

Series

2026-B42,

Class

A5,

5.10%,

3/15/59

2,565‌

2,511‌

Benchmark

Mortgage

Trust

Series

2026-V21,

Class

A3,

5.127%,

3/15/59

5,940‌

5,931‌

BMO

Mortgage

Trust

Series

2025-C12,

Class

A5,

ARM,

5.871%,

6/15/58

1,270‌

1,312‌

BMO

Mortgage

Trust

Series

2025-C13,

Class

A5,

5.353%,

10/15/58

1,955‌

1,951‌

Commercial

Mortgage

Trust

Series

2024-SLCT,

Class

ARM,

TSFR

1.323%,

5.00%,

1/15/42 (1)

3,185‌

3,179‌

Commercial

Mortgage

Trust

Series

2026-CSMO,

Class

ARM,

TSFR

1.40%,

5.076%,

2/15/43 (1)

4,550‌

4,563‌

Trust

Series

2025-ROIC,

Class

ARM,

TSFR

1.144%,

4.82%,

3/15/30 (1)

3,957‌

3,950‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

Trust

Series

2025-VOLT,

Class

ARM,

TSFR

1.70%,

5.376%,

12/15/44 (1)

4,775‌

4,763‌

Trust

Series

2026-CLS,

Class

ARM,

TSFR

1.70%,

5.376%,

5/15/43 (1)

535‌

536‌

CENT

Series

2025-CITY,

Class

ARM,

4.92%,

7/10/40 (1)

3,715‌

3,680‌

CONE

Trust

Series

2024-DFW1,

Class

ARM,

TSFR

1.642%,

5.318%,

8/15/41 (1)

685‌

682‌

DBC

Mortgage

Trust

Series

2025-DBC,

Class

ARM,

TSFR

1.35%,

5.027%,

11/15/42 (1)

725‌

726‌

Extended

Stay

America

Trust

Series

2025-ESH,

Class

ARM,

TSFR

1.30%,

4.976%,

10/15/42 (1)

901‌

902‌

Hudson

Yards

Mortgage

Trust

Series

2025-SPRL,

Class

ARM,

5.467%,

1/13/40 (1)

2,555‌

2,581‌

Hudson

Yards

Mortgage

Trust

Series

2026-10HY,

Class

ARM,

5.086%,

12/10/39 (1)

310‌

308‌

MAD

Commercial

Mortgage

Trust

Series

2025-11MD,

Class

ARM,

4.754%,

10/15/42 (1)

1,960‌

1,927‌

Morgan

Stanley

Bank

America

Merrill

Lynch

Trust

Series

2025-C35,

Class

A5,

5.633%,

8/15/58

1,600‌

1,631‌

NYC

Commercial

Mortgage

Trust

Series

2025-28L,

Class

ARM,

4.668%,

11/5/38 (1)

140‌

138‌

SCG

Mortgage

Trust

Series

2026-PALM,

Class

ARM,

TSFR

1.27%,

4.90%,

7/15/43 (1)

650‌

SCG

Mortgage

Trust

Series

2026-PALM,

Class

ARM,

TSFR

1.50%,

5.13%,

7/15/43 (1)

155‌

Trust

Series

2024-HOU,

Class

ARM,

TSFR

1.591%,

5.268%,

6/15/39 (1)

660‌

659‌

Commercial

Mortgage

Trust

Series

2024-HQ,

Class

ARM,

5.937%,

3/15/40 (1)

490‌

491‌

Wells

Fargo

Commercial

Mortgage

Trust

Series

2019-C54,

Class

A4,

3.146%,

12/15/52

750‌

706‌

60,529‌

Total

Non-U.S.

Government

Mortgage-Backed

Securities

(Cost

$124,623)

122,567‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

U.S.

GOVERNMENT

AGENCY

MORTGAGE-BACKED

SECURITIES

25.7%

U.S.

Government

Agency

Obligations

21.1%

Federal

Home

Loan

Mortgage

2.50%,

4/1/30

6/1/30

214‌

208‌

3.00%,

12/1/42

4/1/47

2,225‌

1,961‌

3.50%,

3/1/42

3/1/46

1,637‌

1,502‌

4.00%,

9/1/40

8/1/45

588‌

556‌

4.50%,

8/1/39

10/1/41

286‌

279‌

5.00%,

11/1/33

8/1/40

220‌

5.50%,

1/1/35

12/1/39

55‌

56‌

6.00%,

10/1/32

8/1/38

46‌

48‌

6.50%,

12/1/28

1/1/36

22‌

7.00%,

11/1/30

6/1/32

2‌

Federal

Home

Loan

Mortgage,

ARM

RFUCCT1Y

1.625%,

5.785%,

4/1/37

14‌

RFUCCT1Y

1.726%,

6.101%,

7/1/35

3‌

RFUCCT1Y

1.75%,

6.00%,

2/1/35

3‌

RFUCCT1Y

1.911%,

6.219%,

12/1/36

7‌

RFUCCT1Y

1.934%,

6.183%,

2/1/37

3‌

RFUCCT1Y

2.033%,

6.399%,

11/1/36

9‌

Federal

Home

Loan

Mortgage,

UMBS

2.00%,

8/1/36

5/1/52

35,527‌

28,127‌

2.50%,

3/1/42

5/1/52

32,303‌

26,629‌

3.00%,

3/1/35

9/1/52

9,968‌

8,680‌

3.50%,

5/1/31

4/1/52

4,543‌

4,111‌

4.00%,

6/1/37

1/1/56

9,444‌

8,664‌

4.50%,

9/1/37

10/1/53

6,784‌

6,426‌

5.00%,

12/1/41

10/1/55

10,417‌

10,123‌

5.50%,

8/1/53

10/1/55

29,478‌

29,344‌

6.00%,

4/1/54

6/1/55

7,513‌

7,637‌

6.50%,

5/1/54

9/1/55

4,566‌

4,710‌

Federal

Home

Loan

Mortgage

Multifamily

Structured

PTC

2.952%,

2/25/27

52‌

51‌

4.361%,

5/25/30

1,480‌

1,463‌

4.40%,

10/25/30

6,065‌

5,997‌

Federal

Home

Loan

Mortgage

Multifamily

Structured

PTC,

ARM

2.347%,

11/25/31

10,520‌

9,347‌

3.71%,

9/25/32

4,545‌

4,284‌

3.97%,

4/25/31

5,535‌

5,360‌

4.00%,

3/25/31

1,620‌

1,572‌

4.13%,

3/25/31

2,250‌

2,197‌

4.163%,

10/25/30

1,610‌

1,579‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

4.32%,

9/25/30

3/25/36

5,335‌

5,138‌

4.34%,

9/25/30

1,440‌

1,421‌

4.43%,

2/25/33

3,725‌

3,641‌

4.60%,

9/25/35

3,020‌

2,940‌

4.85%,

1/25/30

3,970‌

3,989‌

5.355%,

1/25/29

2,555‌

2,591‌

Federal

National

Mortgage

Assn.

2.50%,

1/1/61

1,334‌

1,050‌

3.50%,

6/1/43

5‌

4‌

4.00%,

11/1/40

259‌

250‌

4.50%,

7/1/40

2‌

3‌

Federal

National

Mortgage

Assn.,

ARM

RFUCCT1Y

1.523%,

6.097%,

7/1/35

3‌

RFUCCT1Y

1.60%,

6.02%,

7/1/36

6‌

RFUCCT1Y

1.655%,

6.03%,

8/1/37

2‌

Federal

National

Mortgage

Assn.,

UMBS

1.50%,

4/1/37

1/1/42

5,231‌

4,508‌

2.00%,

8/1/28

5/1/52

83,015‌

68,082‌

2.50%,

5/1/30

1/1/54

39,758‌

33,104‌

3.00%,

10/1/32

9/1/52

25,865‌

22,895‌

3.50%,

11/1/26

5/1/52

21,234‌

19,167‌

4.00%,

6/1/37

6/1/53

14,966‌

13,869‌

4.50%,

9/1/35

10/1/54

16,911‌

16,100‌

5.00%,

11/1/33

3/1/56

26,464‌

25,717‌

5.50%,

12/1/34

12/1/55

28,028‌

27,888‌

6.00%,

2/1/34

10/1/55

34,654‌

35,224‌

6.50%,

1/1/32

7/1/55

6,856‌

7,095‌

7.00%,

2/1/30

11/1/36

6‌

7.50%,

12/1/30

—‌

UMBS,

TBA (7)

2.00%,

8/1/56

13,860‌

10,794‌

2.50%,

8/1/41

8/1/56

4,990‌

4,247‌

3.00%,

8/1/56

5,545‌

4,715‌

3.50%,

8/1/56

7,865‌

6,965‌

4.00%,

8/1/55

8,265‌

7,530‌

4.50%,

8/1/56

940‌

882‌

5.00%,

8/1/56

13,830‌

13,345‌

5.50%,

8/1/56

2,480‌

2,453‌

6.00%,

8/1/56

3,000‌

3,031‌

6.50%,

8/1/56

2,720‌

2,803‌

522,652‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

U.S.

Government

Obligations

4.6%

Government

National

Mortgage

Assn.

1.50%,

12/20/36

5/20/37

574‌

519‌

2.00%,

3/20/51

5/20/52

16,492‌

13,217‌

2.50%,

8/20/50

4/20/52

23,738‌

19,836‌

3.00%,

9/15/42

6/20/52

12,010‌

10,457‌

3.50%,

9/15/41

7/20/52

10,523‌

9,500‌

4.00%,

2/15/41

10/20/52

8,798‌

8,133‌

4.50%,

9/15/34

6/20/53

14,230‌

13,551‌

5.00%,

1/20/33

9/20/53

7,292‌

7,154‌

5.50%,

10/20/32

9/20/54

7,658‌

7,662‌

6.00%,

8/15/33

11/20/52

1,263‌

1,292‌

6.50%,

1/15/29

8/15/29

1‌

7.50%,

12/15/27

3/15/32

20‌

Government

National

Mortgage

Assn.,

CMO

3.00%,

11/20/47

12/20/47

55‌

49‌

Government

National

Mortgage

Assn.,

TBA (7)

4.50%,

8/20/56

6,825‌

6,398‌

5.00%,

8/20/56

7,910‌

7,654‌

5.50%,

8/20/56

8,600‌

8,542‌

6.00%,

8/20/56

780‌

792‌

114,777‌

Total

U.S.

Government

Agency

Mortgage-Backed

Securities

(Cost

$667,527)

637,429‌

U.S.

GOVERNMENT

AGENCY

OBLIGATIONS

(EXCLUDING

MORTGAGE-BACKED)

30.0%

U.S.

Government

Agency

Obligations

0.0%

Federal

National

Mortgage

Assn.,

6.25%,

5/15/29

342‌

359‌

Federal

National

Mortgage

Assn.,

6.625%,

11/15/30 (6)

500‌

542‌

901‌

U.S.

Treasury

Obligations

30.0%

U.S.

Treasury

Bonds,

1.75%,

8/15/41

6,900‌

4,449‌

U.S.

Treasury

Bonds,

1.875%,

2/15/51

2,740‌

1,443‌

U.S.

Treasury

Bonds,

2.00%,

2/15/50

34,340‌

18,989‌

U.S.

Treasury

Bonds,

2.00%,

8/15/51

5,550‌

2,993‌

U.S.

Treasury

Bonds,

2.25%,

8/15/49

50‌

30‌

U.S.

Treasury

Bonds,

2.25%,

2/15/52

7,275‌

4,151‌

U.S.

Treasury

Bonds,

2.375%,

5/15/51

1,420‌

843‌

U.S.

Treasury

Bonds,

2.50%,

2/15/45

3,570‌

2,392‌

U.S.

Treasury

Bonds,

2.50%,

5/15/46

4,840‌

3,175‌

U.S.

Treasury

Bonds,

2.75%,

8/15/47

1,710‌

1,154‌

U.S.

Treasury

Bonds,

3.00%,

11/15/45

2,845‌

2,056‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

U.S.

Treasury

Bonds,

3.00%,

2/15/47

3,450‌

2,453‌

U.S.

Treasury

Bonds,

3.00%,

5/15/47

3,150‌

2,233‌

U.S.

Treasury

Bonds,

3.00%,

2/15/48

15,835‌

11,122‌

U.S.

Treasury

Bonds,

3.00%,

8/15/48

60‌

42‌

U.S.

Treasury

Bonds,

3.00%,

8/15/52

4,200‌

2,829‌

U.S.

Treasury

Bonds,

3.125%,

11/15/41

17,585‌

13,843‌

U.S.

Treasury

Bonds,

3.375%,

8/15/42

2,550‌

2,046‌

U.S.

Treasury

Bonds,

3.625%,

5/15/53

13,045‌

9,912‌

U.S.

Treasury

Bonds,

3.875%,

8/15/40

2,005‌

1,773‌

U.S.

Treasury

Bonds,

3.875%,

5/15/43

8,430‌

7,162‌

U.S.

Treasury

Bonds,

4.00%,

11/15/52

2,540‌

2,069‌

U.S.

Treasury

Bonds,

4.125%,

8/15/44

13,885‌

12,056‌

U.S.

Treasury

Bonds,

4.25%,

2/15/54

7,145‌

6,067‌

U.S.

Treasury

Bonds,

4.25%,

8/15/54

11,335‌

9,629‌

U.S.

Treasury

Bonds,

4.375%,

5/15/41

20‌

19‌

U.S.

Treasury

Bonds,

4.625%,

5/15/44

14,350‌

13,323‌

U.S.

Treasury

Bonds,

4.625%,

11/15/44

12,435‌

11,514‌

U.S.

Treasury

Bonds,

4.625%,

11/15/45

7,800‌

7,193‌

U.S.

Treasury

Bonds,

4.625%,

2/15/46

17,200‌

15,848‌

U.S.

Treasury

Bonds,

4.625%,

5/15/54

6,515‌

5,893‌

U.S.

Treasury

Bonds,

4.625%,

2/15/55

13,300‌

12,030‌

U.S.

Treasury

Bonds,

4.625%,

11/15/55

15,000‌

13,575‌

U.S.

Treasury

Bonds,

4.75%,

2/15/41

35‌

34‌

U.S.

Treasury

Bonds,

4.75%,

11/15/43

1,250‌

1,182‌

U.S.

Treasury

Bonds,

4.75%,

2/15/45

2,900‌

2,726‌

U.S.

Treasury

Bonds,

4.75%,

11/15/53

10,870‌

10,019‌

U.S.

Treasury

Bonds,

4.75%,

5/15/55

24,105‌

22,259‌

U.S.

Treasury

Bonds,

4.75%,

8/15/55

4,100‌

3,787‌

U.S.

Treasury

Bonds,

4.75%,

2/15/56

12,400‌

11,462‌

U.S.

Treasury

Bonds,

4.875%,

8/15/45

16,865‌

16,077‌

U.S.

Treasury

Bonds,

5.00%,

5/15/45

11,910‌

11,540‌

U.S.

Treasury

Notes,

0.50%,

8/31/27

50‌

48‌

U.S.

Treasury

Notes,

2.75%,

8/15/32

2,300‌

2,088‌

U.S.

Treasury

Notes,

3.375%,

5/15/33

885‌

825‌

U.S.

Treasury

Notes,

3.50%,

12/15/28

13,400‌

13,158‌

U.S.

Treasury

Notes,

3.50%,

1/15/29

14,200‌

13,933‌

U.S.

Treasury

Notes,

3.50%,

11/30/30

14,055‌

13,555‌

U.S.

Treasury

Notes,

3.625%,

8/31/30

8,400‌

8,159‌

U.S.

Treasury

Notes,

3.625%,

9/30/30

12,570‌

12,203‌

U.S.

Treasury

Notes,

3.625%,

10/31/30

29,230‌

28,355‌

U.S.

Treasury

Notes,

3.625%,

12/31/30

15,400‌

14,920‌

U.S.

Treasury

Notes,

3.75%,

12/31/28

14,550‌

14,364‌

U.S.

Treasury

Notes,

3.75%,

1/31/31

10,100‌

9,829‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

U.S.

Treasury

Notes,

3.875%,

4/30/30

58,475‌

57,465‌

U.S.

Treasury

Notes,

3.875%,

6/30/30

7,990‌

7,843‌

U.S.

Treasury

Notes,

3.875%,

4/30/31

1,400‌

1,368‌

U.S.

Treasury

Notes,

4.00%,

2/29/28 (8)

3,685‌

3,671‌

U.S.

Treasury

Notes,

4.00%,

2/28/30

8,575‌

8,472‌

U.S.

Treasury

Notes,

4.00%,

5/31/30

12,200‌

12,036‌

U.S.

Treasury

Notes,

4.00%,

11/15/35

4,800‌

4,551‌

U.S.

Treasury

Notes,

4.125%,

10/31/29

11,500‌

11,420‌

U.S.

Treasury

Notes,

4.125%,

11/30/29

29,340‌

29,131‌

U.S.

Treasury

Notes,

4.125%,

6/30/31

8,400‌

8,290‌

U.S.

Treasury

Notes,

4.125%,

2/15/36

5,000‌

4,780‌

U.S.

Treasury

Notes,

4.25%,

2/28/29

6,895‌

6,884‌

U.S.

Treasury

Notes,

4.25%,

6/30/29

9,980‌

9,957‌

U.S.

Treasury

Notes,

4.25%,

1/31/30 (8)

12,380‌

12,333‌

U.S.

Treasury

Notes,

4.25%,

11/15/34

23,105‌

22,484‌

U.S.

Treasury

Notes,

4.25%,

5/15/35

13,555‌

13,148‌

U.S.

Treasury

Notes,

4.375%,

11/30/28

835‌

836‌

U.S.

Treasury

Notes,

4.375%,

12/31/29

27,220‌

27,231‌

U.S.

Treasury

Notes,

4.375%,

5/15/34

18,400‌

18,112‌

U.S.

Treasury

Notes,

4.50%,

5/31/29

52,695‌

52,926‌

U.S.

Treasury

Notes,

4.50%,

11/15/33

7,900‌

7,860‌

U.S.

Treasury

Notes,

4.625%,

2/15/35

8,330‌

8,312‌

743,939‌

Total

U.S.

Government

Agency

Obligations

(Excluding

Mortgage-Backed)

(Cost

$805,439)

744,840‌

SHORT-TERM

INVESTMENTS

4.4%

Money

Market

Funds

4.4%

Rowe

Price

Government

Reserve

Fund,

3.72% (9)(10)

108,763‌

Total

Short-Term

Investments

(Cost

$108,763)

108,763‌

SECURITIES

LENDING

COLLATERAL

0.3%

INVESTMENTS

POOLED

ACCOUNT

THROUGH

SECURITIES

LENDING

PROGRAM

WITH

JPMORGAN

CHASE

BANK 0.0%

Money

Market

Funds 0.0%

Rowe

Price

Treasury

Reserve

Fund,

3.70% (9)(10)

976‌

Total

Investments

Pooled

Account

through

Securities

Lending

Program

with

JPMorgan

Chase

Bank

976‌

ROWE

PRICE

U.S.

Bond

Index

Fund

Par/Shares

Value

(Amounts

000s)

INVESTMENTS

POOLED

ACCOUNT

THROUGH

SECURITIES

LENDING

PROGRAM

WITH

STATE

STREET

BANK

AND

TRUST

COMPANY 0.3%

Money

Market

Funds 0.3%

Rowe

Price

Treasury

Reserve

Fund,

3.70% (9)(10)

6,600‌

Total

Investments

Pooled

Account

through

Securities

Lending

Program

with

State

Street

Bank

and

Trust

Company

6,600‌

Total

Securities

Lending

Collateral

(Cost

$7,576)

7,576‌

Total

Investments

Securities 103.3%

(Cost

$2,689,380)

2,563,918‌

Other

Assets

Less

Liabilities

(3.3)%

(82,156‌)

Net

Assets

100.0%

2,481,762‌

‡

Par/Shares

and

Notional

Amount

are

denominated

U.S.

dollars

unless

otherwise

noted.

(1)

Security

was

purchased

pursuant

Rule

144A

under

the

Securities

Act

1933

and

may

resold

transactions

exempt

from

registration

only

qualified

institutional

buyers.

Total

value

such

securities

period-end

amounts

$402,475

and

represents

16.2%

net

assets.

(2)

Level

fair

value

hierarchy.

(3)

Security

has

the

ability

pay

in-kind

pay

cash.

When

applicable,

separate

rates

such

payments

are

disclosed.

(4)

Security

cannot

offered

for

public

resale

without

first

being

registered

under

the

Securities

Act

1933

and

rules

("restricted

security").

Acquisition

date

represents

the

day

which

enforceable

right

acquire

such

security

obtained

and

presented

along

with

cost

the

security

description.

The

fund

may

have

registration

rights

for

certain

restricted

securities.

Any

costs

such

registration

are

generally

borne

the

issuer.

The

aggregate

value

restricted

securities

(excluding

144A

holdings)

period

end

amounts

$3,157

and

represents

0.1%

net

assets.

(5)

Security

fix-to-float

security,

which

carries

fixed

coupon

until

certain

date,

upon

which

switches

floating

rate.

Reference

rate

and

spread

are

provided

the

rate

currently

floating.

(6)

All

portion

this

security

loan

July

31,

2026.

(7)

To-Be-Announced

purchase

commitment.

Total

value

such

securities

period-end

amounts

$80,151

and

represents

3.2%

net

assets.

(8)

July

31,

2026,

all

portion

this

security

pledged

collateral

and/

margin

deposit

cover

future

funding

obligations.

(9)

Seven-day

yield

(10)

Affiliated

Companies

TSFR

One

month

term

SOFR

(Secured

overnight

financing

rate)

ROWE

PRICE

U.S.

Bond

Index

Fund

TSFR

Three

month

term

SOFR

(Secured

overnight

financing

rate)

ARM

Adjustable

Rate

Mortgage

(ARM);

rate

shown

effective

rate

period-end.

The

rates

for

certain

ARMs

are

not

based

published

reference

rate

and

spread

but

may

determined

using

formula

based

the

rates

the

underlying

loans.

CLO

Collateralized

Loan

Obligation

CMO

Collateralized

Mortgage

Obligation

FRN

Floating

Rate

Note

General

Obligation

PFA

Public

Finance

Authority/Agency

PIK

Payment-in-kind

PTC

Pass-Through

Certificate

PTT

Pass-Through

Trust

RFUCCT1Y

Twelve

month

FTSE

USD

IBOR

Consumer

Cash

Fallback

SOFR30A

30-day

Average

SOFR

(Secured

overnight

financing

rate)

STEP

Stepped

coupon

bond

for

which

the

coupon

rate

interest

adjusts

specified

date(s);

rate

shown

effective

rate

period-end.

TBA

To-Be-Announced

UMBS

Uniform

Mortgage-Backed

Securities

Variable

Rate;

rate

shown

effective

rate

period-end.

The

rates

for

certain

variable

rate

securities

are

not

based

published

reference

rate

and

spread

but

are

determined

the

issuer

agent

and

based

current

market

conditions.

ROWE

PRICE

U.S.

Bond

Index

Fund

(Amounts

000s)

SWAPS

0.1%

Description

Notional

Amount

Value

Initial

Value

Unrealized

Gain/(Loss)

CENTRALLY

CLEARED

SWAPS

0.1%

Credit

Default

Swaps,

Protection

Sold

0.1%

Protection

Sold

(Relevant

Credit:

Markit

CDX.NA.IG-S45,

Year

Index),

Receive

1.00%

Quarterly,

Pay

upon

credit

default,

12/20/30

118,900

2,588

2,233

355‌

Protection

Sold

(Relevant

Credit:

Markit

CDX.NA.IG-S46,

Year

Index),

Receive

1.00%

Quarterly,

Pay

upon

credit

default,

6/20/31

12,400

270

190

80‌

Total

Centrally

Cleared

Credit

Default

Swaps,

Protection

Sold

435‌

Total

Centrally

Cleared

Swaps

435‌

Net

payments

(receipts)

variation

margin

date

(418‌)

Variation

margin

receivable

(payable)

centrally

cleared

swaps

17‌

ROWE

PRICE

U.S.

Bond

Index

Fund

The

accompanying

notes

are

integral

part

this

Portfolio

Investments.

AFFILIATED

COMPANIES

($000s)

The

fund

may

invest

certain

securities

that

are

considered

affiliated

companies.

defined

the

1940

Act,

affiliated

company

one

which

the

fund

owns

the

outstanding

voting

securities,

company

that

under

common

ownership

control.

The

following

securities

were

considered

affiliated

companies

for

all

some

portion

the

nine

months

ended

July

31,

2026.

Net

realized

gain

(loss),

investment

income,

change

net

unrealized

gain/loss,

and

purchase

and

sales

cost

reflect

all

activity

for

the

period

then

ended.

Affiliate

Net

Realized

Gain

(Loss)

Change

Net

Unrealized

Gain/Loss

Investment

Income

Rowe

Price

Government

Reserve

Fund,

3.72%

—‌

2,284‌++

Rowe

Price

Treasury

Reserve

Fund,

3.70%

—‌

—‌++

Totals

—‌#

—‌

2,284‌+

Supplementary

Investment

Schedule

Affiliate

Value

10/31/25

Purchase

Cost

Sales

Cost

Value

7/31/26

Rowe

Price

Government

Reserve

Fund,

3.72%

70,893‌

108,763‌

Rowe

Price

Treasury

Reserve

Fund,

3.70%

—‌

7,576‌

Total

116,339‌^

Capital

gain

distributions

from

underlying

Price

funds

represented

the

net

realized

gain

(loss).

Excludes

earnings

securities

lending

collateral,

which

are

subject

rebates

and

fees.

Investment

income

comprised

$2,284

dividend

income

and

interest

income.

Purchase

and

sale

information

not

shown

for

cash

management

funds.

The

cost

basis

investments

affiliated

companies

was

$116,339.

ROWE

PRICE

U.S.

Bond

Index

Fund

Unaudited

Notes

Portfolio

Investments

Rowe

Price

U.S.

Bond

Index

Fund,

Inc. (the

corporation)

registered

under

the

Investment

Company

Act

1940

(the

1940

Act). The

U.S.

Bond

Index

Fund

(the

fund)

is an open-end

management

investment

company

established

the

corporation

and

follows

accounting

and

reporting

guidance

the

Financial

Accounting

Standards

Board

Accounting

Standards

Codification

Topic

946.

The

accompanying

Portfolio

Investments

was

prepared

accordance

with

accounting

principles

generally

accepted

the

United

States

America

(GAAP).

For

additional

information

the

fund’s

significant

accounting

policies

and

investment

disclosures,

please

refer

the

fund’s most

recent

semiannual

annual

shareholder

report

and

its

prospectus.

VALUATION

Fair

Value

The

fund’s

financial

instruments

are

valued

the

New

York

Stock

Exchange

(NYSE),

normally

p.m.

Eastern

time,

each

day

the

NYSE

open

for

business,

and

are

reported

fair

value,

which

GAAP

defines

the

price

that

would

received

sell

asset

paid

transfer

liability

orderly

transaction

between

market

participants

the

measurement

date. The fund’s

Board

Directors

(the

Board)

has

designated

Rowe

Price

Associates,

Inc.

the

fund’s

valuation

designee

(Valuation

Designee).

Subject

oversight

the

Board,

the

Valuation

Designee

performs

the

following

functions

performing

fair

value

determinations:

assesses

and

manages

valuation

risks;

establishes

and

applies

fair

value

methodologies;

tests

fair

value

methodologies;

and

evaluates

pricing

vendors

and

pricing

agents.

The

duties

and

responsibilities

the

Valuation

Designee

are

performed

its

Valuation

Committee. The

Valuation

Designee provides

periodic

reporting

the

Board

valuation

matters.

Various

valuation

techniques

and

inputs

are

used

determine

the

fair

value

financial

instruments.

GAAP

establishes

the

following

fair

value

hierarchy

that

categorizes

the

inputs

used

measure

fair

value:

Level

–

quoted

prices

(unadjusted)

active

markets

for

identical

financial

instruments

that

the

fund

can

access

the

reporting

date

Level

–

inputs

other

than

Level

quoted

prices

that

are

observable,

either

directly

indirectly

(including,

but

not

limited

to,

quoted

prices

for

similar

financial

instruments

active

markets,

quoted

prices

for

identical

similar

financial

instruments

inactive

markets,

interest

rates

and

yield

curves,

implied

volatilities,

and

credit

spreads)

ROWE

PRICE

U.S.

Bond

Index

Fund

Level

–

unobservable

inputs

(including

the Valuation

Designee’s assumptions

determining

fair

value)

Observable

inputs

are

developed

using

market

data,

such

publicly

available

information

about

actual

events

transactions,

and

reflect

the

assumptions

that

market

participants

would

use

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

price

the

financial

instrument.

GAAP

requires

valuation

techniques

maximize

the

use

relevant

observable

inputs

and

minimize

the

use

unobservable

inputs.

When

multiple

inputs

are

used

derive

fair

value,

the

financial

instrument

assigned

the

level

within

the

fair

value

hierarchy

based

the

lowest-level

input

that

significant

the

fair

value

the

financial

instrument.

Input

levels

are

not

necessarily

indication

the

risk

liquidity

associated

with

financial

instruments

that

level

but

rather

the

degree

judgment

used

determining

those

values.

Valuation

Techniques

Debt

securities

are

generally traded

the over-the-

counter

(OTC)

market

and

are

valued

prices

furnished

independent

pricing

services

broker

dealers

who

make

markets

such

securities.

When

valuing

securities,

the

independent

pricing

services

consider

factors

such

as,

but

not

limited

to,

the

yield

price

bonds

comparable

quality,

coupon,

maturity,

and

type,

well

prices

quoted

dealers

who

make

markets

such

securities.

Investments

mutual

funds

are

valued

the

mutual

fund’s

closing

NAV

per

the

day

valuation.

Futures

contracts

are

valued

closing

settlement

prices.

Swaps

are

valued

prices

furnished

independent

pricing

service

independent

swap

dealers.

Investments

for

which

market

quotations are

not

readily

available

deemed

unreliable

are

valued

fair

value

determined

good

faith

the

Valuation

Designee.

The

Valuation

Designee

has

adopted

methodologies

for

determining

the

fair

value

investments

for

which

market

quotations

are

not

readily

available

deemed

unreliable,

including

the

use

other

pricing

sources.

Factors

used

determining

fair

value

vary

type

investment

and

may

include

market

investment

specific

considerations.

The

Valuation

Designee typically

will

afford

the

greatest

weight

actual

prices

arm’s

length

transactions,

the

extent

they

represent

orderly

transactions

between

market

participants,

transaction

information

can

reliably

obtained,

and

prices

are

deemed

representative

fair

value.

However,

the

Valuation

Designee may

also

consider

other

valuation

methods

such

market-based

valuation

multiples;

ROWE

PRICE

U.S.

Bond

Index

Fund

discount

premium

from

market

value

similar,

freely

traded

security

the

same

issuer;

discounted

cash

flows;

yield

maturity;

some

combination.

Fair

value

determinations

are

reviewed

regular

basis.

Because

any

fair

value

determination

involves

significant

amount

judgment,

there

degree

subjectivity

inherent

such

pricing

decisions. Fair

value

prices

determined

the

Valuation

Designee could

differ

from

those

other

market

participants,

and

possible

that

the

fair

value

determined

for

security

may

materially

different

from

the

value

that

could

realized

upon

the

sale

that

security.

Valuation

Inputs

The

following

table

summarizes

the

fund’s

financial

instruments,

based

the

inputs

used

determine

their

fair

values

July

31,

2026

(for

further

detail

category,

please

refer

the

accompanying

Portfolio

Investments):

($000s)

Level

Total

Value

Assets

Fixed

Income

Securities

—‌

2,160,354‌

—‌

2,160,354‌

Asset-Backed

Securities

—‌

162,999‌

1,659‌

164,658‌

Non-U.S.

Government

Mortgage-Backed

Securities

—‌

121,069‌

1,498‌

122,567‌

Short-Term

Investments

108,763‌

—‌

108,763‌

Securities

Lending

Collateral

7,576‌

—‌

7,576‌

Total

Securities

116,339‌

2,444,422‌

3,157‌

2,563,918‌

Swaps*

—‌

435‌

—‌

435‌

Futures

Contracts*

84‌

—‌

84‌

Total

116,423‌

2,444,857‌

3,157‌

2,564,437‌

Liabilities

Futures

Contracts*

724‌

—‌

724‌

Includes

Corporate

Bonds,

Foreign

Government

Obligations

Municipalities,

Municipal

Securities,

U.S.

Government

Agency

Mortgage-Backed

Securities

and

U.S.

Government

Agency

Obligations

(Excluding

Mortgage-Backed).

The

fair

value

presented

includes

cumulative

gain

(loss)

open

futures

contracts

and

centrally

cleared

swaps;

however,

the

net

value

reflected

the

accompanying

Portfolio

Investments

only

the

unsettled

variation

margin

receivable

(payable)

that

date.

ROWE

PRICE

U.S.

Bond

Index

Fund

OTHER

MATTERS

Unpredictable environmental,

political,

social

and

economic

events,

including

but

not

limited

to,

environmental

natural

disasters,

war

and

conflict,

terrorism,

geopolitical

and

regulatory

developments

(including

trading

and

tariff

arrangements),

and

public

health

epidemics

threats,

may

significantly

affect

the

economy

and

the

markets

and

issuers

which

fund

invests.

The

extent

and

duration

such

events

and

resulting

market

disruptions

cannot

predicted.

These

and

other

similar

events

may

cause

instability

across

global

markets,

including

reduced

liquidity

and

disruptions

trading

markets,

while

some

events

may

affect

certain

geographic

regions,

countries,

sectors,

and

industries

significantly

than

others,

and

exacerbate

other

pre-

existing

political,

social,

and

economic

risks.

The

fund’s

performance

could

negatively

impacted

the

value

portfolio

holding

were

harmed

these

such

events.

F134-054Q3

07/26