MFS Funds > MFS Series Trust IX
MFS Corporate Bond Fund
$4.28B
Avg Monthly Net Assets
$4.55B
Total Assets
$35.37M
Total Liabilities
$4.51B
Net Assets
MFS Corporate Bond Fund is a Mutual Fund in MFS Series Trust IX
from MFS Funds,
based in Massachusetts,
United States of America.
The fund has nine share classes
and monthly net assets of $4.28B.
On September 25th, 2024 it reported 403 holdings, the largest
being MFS Institutional Money Market Portfolio (1.7%), United States of America (1.3%) and United States of America (1.0%).
Data provided by Fincoded.
Share Classes
| Name | Class/Contract ID | Ticker | Monthly Returns (2 years) |
|---|---|---|---|
| Class A | C000006711 | MFBFX | |
| Class B | C000006716 | MFBBX | |
| Class C | C000006717 | MFBCX | |
| Class I | C000006718 | MBDIX | |
| Class R1 | C000006720 | MFBGX | |
| Class R2 | C000006722 | MBRRX | |
| Class R3 | C000006723 | MFBHX | |
| Class R4 | C000006712 | MFBJX | |
| Class R6 | C000070424 | MFBKX |
Holdings
From latest NPORT-P, filed September 25th, 2024 for period ending July 31st, 2024.
Historic holdings data available from Fincoded.
| Name | Profile | Category | Country | Value $USD | # Shares | % of Fund |
|---|---|---|---|---|---|---|
| 3650R Commercial Mortgage Trust, Series 2021-PF1, Class XA | Long | ABS-mortgage backed security | US | $5M | – | 0.11 |
| AbbVie, Inc. | Long | Debt | US | $15M | – | 0.34 |
| AbbVie, Inc. | Long | Debt | US | $9M | – | 0.20 |
| ACREC Ltd., Series 2021-FL1, Class A | Long | ABS-collateralized bond/debt obligation | KY | $13M | – | 0.29 |
| Adani Electricity Mumbai Ltd. | Long | Debt | IN | $4M | – | 0.09 |
| Adani Transmission Step-One Ltd. | Long | Debt | IN | $14M | – | 0.31 |
| Adani Transmission Step-One Ltd. | Long | Debt | IN | $4M | – | 0.10 |
| AEP Transmission Co. LLC | Long | Debt | US | $5M | – | 0.12 |
| AGCO Corp. | Long | Debt | US | $22M | – | 0.50 |
| AIB Group plc | Long | Debt | IE | $26M | – | 0.58 |
| AIB Group plc | Long | Debt | IE | $6M | – | 0.14 |
| Alcon Finance Corp. | Long | Debt | US | $18M | – | 0.40 |
| Alcon Finance Corp. | Long | Debt | US | $5M | – | 0.12 |
| Algonquin Power & Utilities Corp. | Long | Debt | CA | $6M | – | 0.13 |
| Alimentation Couche-Tard, Inc. | Long | Debt | CA | $14M | – | 0.31 |
| Alliant Holdings Intermediate LLC | Long | Debt | US | $5M | – | 0.12 |
| Amazon.com, Inc. | Long | Debt | US | $11M | – | 0.25 |
| American International Group, Inc. | Long | Debt | US | $19M | – | 0.43 |
| American Tower Corp. | Long | Debt | US | $13M | – | 0.28 |
| American Tower Corp. | Long | Debt | US | $12M | – | 0.26 |
| American Transmission Systems, Inc. | Long | Debt | US | $4M | – | 0.09 |
| Anglo American Capital plc | Long | Debt | GB | $10M | – | 0.23 |
| Anglo American Capital plc | Long | Debt | GB | $4M | – | 0.09 |
| Anheuser-Busch InBev Worldwide, Inc. | Long | Debt | US | $14M | – | 0.31 |
| Anheuser-Busch InBev Worldwide, Inc. | Long | Debt | US | $4M | – | 0.10 |
| APA Infrastructure Ltd. | Long | Debt | AU | $12M | – | 0.27 |
| Apple, Inc. | Long | Debt | US | $4M | – | 0.10 |
| Arbor Realty Commercial Real Estate Notes Ltd., Series 2021-FL4, Class AS | Long | ABS-collateralized bond/debt obligation | KY | $5M | – | 0.11 |
| ARI Fleet Lease Trust, Series 2023-A, Class A2 | Long | ABS-other | US | $3M | – | 0.07 |
| Arrow Electronics, Inc. | Long | Debt | US | $21M | – | 0.46 |
| Arthur J Gallagher & Co. | Long | Debt | US | $16M | – | 0.35 |
| Arthur J Gallagher & Co. | Long | Debt | US | $13M | – | 0.30 |
| Ashtead Capital, Inc. | Long | Debt | US | $10M | – | 0.22 |
| Ashtead Capital, Inc. | Long | Debt | US | $4M | – | 0.09 |
| Ashtead Capital, Inc. | Long | Debt | US | $3M | – | 0.07 |
| AutoZone, Inc. | Long | Debt | US | $9M | – | 0.20 |
| Avolon Holdings Funding Ltd. | Long | Debt | KY | $9M | – | 0.19 |
| Avolon Holdings Funding Ltd. | Long | Debt | KY | $5M | – | 0.11 |
| Avolon Holdings Funding Ltd. | Long | Debt | KY | $5M | – | 0.10 |
| Bacardi Ltd. | Long | Debt | BM | $22M | – | 0.48 |
| Bank of America Corp. | Long | Debt | US | $25M | – | 0.56 |
| Bank of America Corp. | Long | Debt | US | $21M | – | 0.45 |
| Bank of America Corp. | Long | Debt | US | $13M | – | 0.29 |
| Bank of America Corp. | Long | Debt | US | $7M | – | 0.15 |
| Barclays plc | Long | Debt | GB | $17M | – | 0.37 |
| BAT Capital Corp. | Long | Debt | US | $13M | – | 0.28 |
| BAT Capital Corp. | Long | Debt | US | $9M | – | 0.20 |
| Bayview Financial Revolving Asset Trust, Series 2005-E, Class M1 | Long | ABS-other | US | $335K | – | 0.01 |
| BBVA Bancomer SA | Long | Debt | MX | $18M | – | 0.39 |
| BDS Ltd., Series 2021-FL7, Class B | Long | ABS-collateralized bond/debt obligation | KY | $4M | – | 0.10 |
| Becton Dickinson & Co. | Long | Debt | US | $6M | – | 0.14 |
| Becton Dickinson & Co. | Long | Debt | US | $5M | – | 0.11 |
| Becton Dickinson & Co. | Long | Debt | US | $3M | – | 0.07 |
| Benchmark Mortgage Trust, Series 2021-B27, Class XA | Long | ABS-mortgage backed security | US | $11M | – | 0.25 |
| Berkshire Hathaway Energy Co. | Long | Debt | US | $4M | – | 0.08 |
| Berkshire Hathaway Energy Co. | Long | Debt | US | $3M | – | 0.06 |
| Bermuda Government Bond | Long | Debt | BM | $25M | – | 0.55 |
| Boeing Co. (The) | Long | Debt | US | $34M | – | 0.76 |
| Boeing Co. (The) | Long | Debt | US | $15M | – | 0.33 |
| Boeing Co. (The) | Long | Debt | US | $8M | – | 0.18 |
| Boeing Co. (The) | Long | Debt | US | $7M | – | 0.15 |
| Boston Properties LP | Long | Debt | US | $11M | – | 0.25 |
| Boston Properties LP | Long | Debt | US | $3M | – | 0.07 |
| BP Capital Markets America, Inc. | Long | Debt | US | $7M | – | 0.16 |
| BP Capital Markets America, Inc. | Long | Debt | US | $6M | – | 0.13 |
| BP Capital Markets America, Inc. | Long | Debt | US | $5M | – | 0.10 |
| BPCE SA | Long | Debt | FR | $13M | – | 0.29 |
| Bristol-Myers Squibb Co. | Long | Debt | US | $8M | – | 0.17 |
| Bristol-Myers Squibb Co. | Long | Debt | US | $5M | – | 0.10 |
| Broadcom, Inc. | Long | Debt | US | $9M | – | 0.20 |
| Brown & Brown, Inc. | Long | Debt | US | $13M | – | 0.30 |
| Burlington Northern Santa Fe LLC | Long | Debt | US | $15M | – | 0.34 |
| Burlington Northern Santa Fe LLC | Long | Debt | US | $9M | – | 0.20 |
| CaixaBank SA | Long | Debt | ES | $18M | – | 0.39 |
| CaixaBank SA | Long | Debt | ES | $9M | – | 0.20 |
| Campbell Soup Co. | Long | Debt | US | $2M | – | 0.05 |
| Campbell Soup Co. | Long | Debt | US | $1M | – | 0.03 |
| Canadian Pacific Railway Co. | Long | Debt | CA | $12M | – | 0.26 |
| CBRE Services, Inc. | Long | Debt | US | $29M | – | 0.63 |
| Cellnex Finance Co. SA | Long | Debt | ES | $15M | – | 0.34 |
| Charles Schwab Corp. (The) | Long | Debt | US | $11M | – | 0.24 |
| Charles Schwab Corp. (The) | Long | Debt | US | $7M | – | 0.16 |
| Charter Communications Operating LLC | Long | Debt | US | $25M | – | 0.55 |
| Charter Communications Operating LLC | Long | Debt | US | $9M | – | 0.20 |
| Cisco Systems, Inc. | Long | Debt | US | $8M | – | 0.18 |
| CNH Industrial Capital LLC | Long | Debt | US | $18M | – | 0.39 |
| CNH Industrial Capital LLC | Long | Debt | US | $16M | – | 0.35 |
| CNH Industrial NV | Long | Debt | NL | $5M | – | 0.11 |
| Columbia Pipelines Holding Co. LLC | Long | Debt | US | $3M | – | 0.08 |
| Columbia Pipelines Operating Co. LLC | Long | Debt | US | $21M | – | 0.47 |
| Columbia Pipelines Operating Co. LLC | Long | Debt | US | $9M | – | 0.19 |
| Comcast Corp. | Long | Debt | US | $9M | – | 0.20 |
| Comerica, Inc. | Long | Debt | US | $14M | – | 0.31 |
| Commonwealth Bank of Australia | Long | Debt | AU | $14M | – | 0.31 |
| Commonwealth Bank of Australia | Long | Debt | AU | $12M | – | 0.26 |
| Constellation Brands, Inc. | Long | Debt | US | $11M | – | 0.24 |
| Constellation Brands, Inc. | Long | Debt | US | $11M | – | 0.24 |
| Constellation Brands, Inc. | Long | Debt | US | $5M | – | 0.10 |
| COPT Defense Properties LP | Long | Debt | US | $18M | – | 0.40 |
| COPT Defense Properties LP | Long | Debt | US | $15M | – | 0.33 |
| Corebridge Financial, Inc. | Long | Debt | US | $20M | – | 0.45 |
| Corebridge Financial, Inc. | Long | Debt | US | $2M | – | 0.05 |
| Coty, Inc. | Long | Debt | US | $3M | – | 0.06 |
| Coty, Inc. | Long | Debt | US | $1M | – | 0.02 |
| Credit Agricole SA | Long | Debt | FR | $23M | – | 0.50 |
| Crown Castle, Inc. | Long | Debt | US | $9M | – | 0.19 |
| Crown Castle, Inc. | Long | Debt | US | $9M | – | 0.19 |
| Cummins, Inc. | Long | Debt | US | $8M | – | 0.17 |
| Danaher Corp. | Long | Debt | US | $10M | – | 0.23 |
| Danske Bank A/S | Long | Debt | DK | $17M | – | 0.37 |
| Deutsche Bank AG | Long | Debt | DE | $15M | – | 0.33 |
| Deutsche Bank AG | Long | Debt | DE | $12M | – | 0.26 |
| Diageo Capital plc | Long | Debt | GB | $7M | – | 0.15 |
| Diamondback Energy, Inc. | Long | Debt | US | $16M | – | 0.35 |
| Diamondback Energy, Inc. | Long | Debt | US | $7M | – | 0.14 |
| Dick's Sporting Goods, Inc. | Long | Debt | US | $20M | – | 0.44 |
| Discovery Communications LLC | Long | Debt | US | $7M | – | 0.14 |
| DTE Energy Co. | Long | Debt | US | $12M | – | 0.27 |
| Duke Energy Carolinas LLC | Long | Debt | US | $20M | – | 0.43 |
| Duke Energy Florida LLC | Long | Debt | US | $9M | – | 0.20 |
| Element Fleet Management Corp. | Long | Debt | CA | $20M | – | 0.44 |
| Element Fleet Management Corp. | Long | Debt | CA | $13M | – | 0.28 |
| Elevance Health, Inc. | Long | Debt | US | $15M | – | 0.34 |
| Elevance Health, Inc. | Long | Debt | US | $11M | – | 0.25 |
| ELM Trust, Series 2024-ELM, Class A10 | Long | ABS-mortgage backed security | US | $5M | – | 0.11 |
| ELM Trust, Series 2024-ELM, Class D10 | Long | ABS-mortgage backed security | US | $5M | – | 0.11 |
| EMRLD Borrower LP | Long | Debt | US | $2M | – | 0.04 |
| Enbridge, Inc. | Long | Debt | CA | $16M | – | 0.36 |
| Enbridge, Inc. | Long | Debt | CA | $10M | – | 0.21 |
| Enel Finance International NV | Long | Debt | NL | $13M | – | 0.29 |
| Enel Finance International NV | Long | Debt | NL | $11M | – | 0.25 |
| Enel Finance International NV | Long | Debt | NL | $6M | – | 0.14 |
| Enel Finance International NV | Long | Debt | NL | $4M | – | 0.09 |
| Energy Transfer LP | Long | Debt | US | $8M | – | 0.18 |
| Energy Transfer LP | Long | Debt | US | $8M | – | 0.18 |
| Energy Transfer LP, Series G | Long | Debt | US | $12M | – | 0.26 |
| Engie Energia Chile SA | Long | Debt | CL | $16M | – | 0.35 |
| EPR Properties | Long | Debt | US | $18M | – | 0.40 |
| EQM Midstream Partners LP | Long | Debt | US | $9M | – | 0.20 |
| EQT Corp. | Long | Debt | US | $11M | – | 0.24 |
| EQT Corp. | Long | Debt | US | $4M | – | 0.08 |
| Eversource Energy | Long | Debt | US | $12M | – | 0.26 |
| Extra Space Storage LP | Long | Debt | US | $17M | – | 0.39 |
| Fairfax Financial Holdings Ltd. | Long | Debt | CA | $12M | – | 0.25 |
| Fairfax Financial Holdings Ltd. | Long | Debt | CA | $10M | – | 0.22 |
| Fairfax Financial Holdings Ltd. | Long | Debt | CA | $5M | – | 0.11 |
| FirstEnergy Corp., Series B | Long | Debt | US | $16M | – | 0.36 |
| FirstEnergy Corp., Series C | Long | Debt | US | $11M | – | 0.25 |
| Fiserv, Inc. | Long | Debt | US | $11M | – | 0.25 |
| Fiserv, Inc. | Long | Debt | US | $11M | – | 0.25 |
| Florida Power & Light Co. | Long | Debt | US | $7M | – | 0.15 |
| Florida Power & Light Co. | Long | Debt | US | $6M | – | 0.13 |
| Flutter Treasury Designated Activity Co. | Long | Debt | IE | $14M | – | 0.31 |
| FMG Resources August 2006 Pty. Ltd. | Long | Debt | AU | $16M | – | 0.36 |
| Ford Motor Co. | Long | Debt | US | $7M | – | 0.15 |
| Ford Motor Credit Co. LLC | Long | Debt | US | $11M | – | 0.24 |
| Ford Motor Credit Co. LLC | Long | Debt | US | $10M | – | 0.22 |
| Ford Motor Credit Co. LLC | Long | Debt | US | $10M | – | 0.21 |
| Ford Motor Credit Co. LLC | Long | Debt | US | $8M | – | 0.19 |
| Fortress Transportation and Infrastructure Investors LLC | Long | Debt | US | $14M | – | 0.31 |
| Gaci First Investment Co. | Long | Debt | KY | $7M | – | 0.16 |
| Gaci First Investment Co. | Long | Debt | KY | $7M | – | 0.16 |
| Galaxy Pipeline Assets Bidco Ltd. | Long | Debt | JE | $20M | – | 0.44 |
| Galaxy Pipeline Assets Bidco Ltd. | Long | Debt | JE | $3M | – | 0.07 |
| General Dynamics Corp. | Long | Debt | US | $12M | – | 0.28 |
| Georgia Power Co. | Long | Debt | US | $13M | – | 0.28 |
| Georgia Power Co. | Long | Debt | US | $12M | – | 0.28 |
| Georgia Power Co. | Long | Debt | US | $10M | – | 0.22 |
| GFL Environmental, Inc. | Long | Debt | CA | $7M | – | 0.15 |
| Glencore Funding LLC | Long | Debt | US | $8M | – | 0.18 |
| Global Aircraft Leasing Co. Ltd. | Long | Debt | KY | $15M | – | 0.33 |
| Golden State Tobacco Securitization Corp. | Long | Debt | US | $8M | – | 0.19 |
| GXO Logistics, Inc. | Long | Debt | US | $3M | – | 0.07 |
| Haleon US Capital LLC | Long | Debt | US | $4M | – | 0.08 |
| Home Depot, Inc. (The) | Long | Debt | US | $13M | – | 0.28 |
| Home Depot, Inc. (The) | Long | Debt | US | $4M | – | 0.10 |
| Home Depot, Inc. (The) | Long | Debt | US | $2M | – | 0.04 |
| HSBC Holdings plc | Long | Debt | GB | $18M | – | 0.41 |
| HSBC Holdings plc | Long | Debt | GB | $7M | – | 0.16 |
| Humana, Inc. | Long | Debt | US | $8M | – | 0.18 |
| Humana, Inc. | Long | Debt | US | $3M | – | 0.08 |
| Hyundai Capital America | Long | Debt | US | $17M | – | 0.38 |
| IAMGOLD Corp. | Long | Debt | CA | $13M | – | 0.29 |
| Icon Investments Six DAC | Long | Debt | IE | $18M | – | 0.41 |
| Icon Investments Six DAC | Long | Debt | IE | $6M | – | 0.13 |
| Imperial Brands Finance plc | Long | Debt | GB | $17M | – | 0.37 |
| Ingersoll Rand, Inc. | Long | Debt | US | $6M | – | 0.13 |
| Intel Corp. | Long | Debt | US | $17M | – | 0.38 |
| International Flavors & Fragrances, Inc. | Long | Debt | US | $13M | – | 0.30 |
| International Flavors & Fragrances, Inc. | Long | Debt | US | $8M | – | 0.17 |
| International Flavors & Fragrances, Inc. | Long | Debt | US | $5M | – | 0.10 |
| International Flavors & Fragrances, Inc. | Long | Debt | US | $4M | – | 0.09 |
| International Flavors & Fragrances, Inc. | Long | Debt | US | $4M | – | 0.08 |
| Intesa Sanpaolo SpA | Long | Debt | IT | $12M | – | 0.26 |
| IQVIA, Inc. | Long | Debt | US | $13M | – | 0.28 |
| JBS USA Holding Lux SARL | Long | Debt | LU | $12M | – | 0.27 |
| JBS USA Holding Lux SARL | Long | Debt | LU | $11M | – | 0.25 |
| JBS USA Holding Lux SARL | Long | Debt | LU | $4M | – | 0.09 |
| JDE Peet's NV | Long | Debt | NL | $10M | – | 0.23 |
| Jersey Central Power & Light Co. | Long | Debt | US | $19M | – | 0.43 |
| JPMorgan Chase & Co. | Long | Debt | US | $32M | – | 0.70 |
| JPMorgan Chase & Co. | Long | Debt | US | $26M | – | 0.58 |
| JPMorgan Chase & Co. | Long | Debt | US | $13M | – | 0.30 |
| JPMorgan Chase & Co. | Long | Debt | US | $10M | – | 0.22 |
| JPMorgan Chase & Co. | Long | Debt | US | $8M | – | 0.18 |
| JPMorgan Chase & Co. | Long | Debt | US | $4M | – | 0.10 |
| JPMorgan Chase Commercial Mortgage Securities Trust, Series 2005-LDP2, Class H | Long | ABS-mortgage backed security | US | $14K | – | 0.00 |
| Kenvue, Inc. | Long | Debt | US | $12M | – | 0.26 |
| Kenvue, Inc. | Long | Debt | US | $10M | – | 0.22 |
| Kenvue, Inc. | Long | Debt | US | $9M | – | 0.20 |
| Kraft Heinz Foods Co. | Long | Debt | US | $12M | – | 0.27 |
| Kraft Heinz Foods Co. | Long | Debt | US | $12M | – | 0.26 |
| KREF Ltd., Series 2021-FL2, Class A | Long | ABS-collateralized bond/debt obligation | KY | $8M | – | 0.18 |
| KREF Ltd., Series 2021-FL2, Class AS | Long | ABS-collateralized bond/debt obligation | KY | $9M | – | 0.19 |
| L3Harris Technologies, Inc. | Long | Debt | US | $12M | – | 0.27 |
| L3Harris Technologies, Inc. | Long | Debt | US | $10M | – | 0.21 |
| LAD Auto Receivables Trust, Series 2023-2A, Class A2 | Long | ABS-other | US | $7M | – | 0.14 |
| Lam Research Corp. | Long | Debt | US | $7M | – | 0.16 |
| Lam Research Corp. | Long | Debt | US | $3M | – | 0.08 |
| Las Vegas Sands Corp. | Long | Debt | US | $9M | – | 0.20 |
| Las Vegas Sands Corp. | Long | Debt | US | $7M | – | 0.16 |
| Lincoln National Corp. | Long | Debt | US | $23M | – | 0.51 |
| LPL Holdings, Inc. | Long | Debt | US | $16M | – | 0.34 |
| LPL Holdings, Inc. | Long | Debt | US | $13M | – | 0.28 |
| LPL Holdings, Inc. | Long | Debt | US | $4M | – | 0.08 |
| Lseg US Fin Corp. | Long | Debt | US | $6M | – | 0.14 |
| LXP Industrial Trust | Long | Debt | US | $13M | – | 0.29 |
| M&T Bank Corp. | Long | Debt | US | $7M | – | 0.15 |
| M&T Bank Corp. | Long | Debt | US | $4M | – | 0.10 |
| M&T Bank Corp. | Long | Debt | US | $2M | – | 0.05 |
| Macquarie Airfinance Holdings Ltd. | Long | Debt | GB | $8M | – | 0.17 |
| Macquarie Airfinance Holdings Ltd. | Long | Debt | GB | $6M | – | 0.13 |
| Macquarie Bank Ltd. | Long | Debt | AU | $9M | – | 0.19 |
| Macquarie Group Ltd. | Long | Debt | AU | $10M | – | 0.23 |
| Manufacturers & Traders Trust Co. | Long | Debt | US | $11M | – | 0.24 |
| Marin General Hospital, Series 2023 | Long | Debt | US | $10M | – | 0.23 |
| Marriott International, Inc., Series HH | Long | Debt | US | $11M | – | 0.24 |
| Marriott International, Inc., Series X | Long | Debt | US | $7M | – | 0.15 |
| Mars, Inc. | Long | Debt | US | $22M | – | 0.48 |
| Massachusetts Educational Financing Authority, Series 2024A | Long | Debt | US | $10M | – | 0.21 |
| Mattel, Inc. | Long | Debt | US | $15M | – | 0.33 |
| MC Brazil Downstream Trading SARL | Long | Debt | LU | $18M | – | 0.41 |
| Melco Resorts Finance Ltd. | Long | Debt | KY | $8M | – | 0.18 |
| Merck & Co., Inc. | Long | Debt | US | $5M | – | 0.11 |
| MF1 Ltd., Series 2022-FL8, Class A | Long | ABS-collateralized bond/debt obligation | KY | $13M | – | 0.28 |
| MF1, Series 2024-FL15, Class A | Long | ABS-collateralized bond/debt obligation | KY | $14M | – | 0.32 |
| MFS Institutional Money Market Portfolio, Class A | Long | Short-term investment vehicle | US | $78M | 78M | 1.72 |
| Microsoft Corp. | Long | Debt | US | $9M | – | 0.21 |
| Microsoft Corp. | Long | Debt | US | $4M | – | 0.08 |
| MidAmerican Energy Co. | Long | Debt | US | $16M | – | 0.36 |
| Millicom International Cellular SA | Long | Debt | LU | $12M | – | 0.26 |
| Mitsubishi UFJ Financial Group, Inc. | Long | Debt | JP | $24M | – | 0.54 |
| Mitsubishi UFJ Financial Group, Inc. | Long | Debt | JP | $13M | – | 0.29 |
| Morgan Stanley | Long | Debt | US | $22M | – | 0.48 |
| Morgan Stanley | Long | Debt | US | $16M | – | 0.36 |
| Morgan Stanley | Long | Debt | US | $16M | – | 0.34 |
| Morgan Stanley | Long | Debt | US | $8M | – | 0.19 |
| Morgan Stanley | Long | Debt | US | $3M | – | 0.07 |
| National Australia Bank Ltd. | Long | Debt | AU | $19M | – | 0.42 |
| NatWest Group plc | Long | Debt | GB | $10M | – | 0.23 |
| NatWest Group plc | Long | Debt | GB | $10M | – | 0.22 |
| NatWest Group plc | Long | Debt | GB | $3M | – | 0.06 |
| NBN Co. Ltd. | Long | Debt | AU | $17M | – | 0.37 |
| New Hampshire Business Finance Authority, Series 2024 A | Long | Debt | US | $14M | – | 0.31 |
| NextEra Energy Capital Holdings, Inc. | Long | Debt | US | $9M | – | 0.19 |
| NextEra Energy Capital Holdings, Inc. | Long | Debt | US | $8M | – | 0.19 |
| NextEra Energy Capital Holdings, Inc. | Long | Debt | US | $2M | – | 0.05 |
| NNN REIT, Inc. | Long | Debt | US | $14M | – | 0.30 |
| Nordea Bank Abp | Long | Debt | FI | $16M | – | 0.35 |
| Northern Star Resources Ltd. | Long | Debt | AU | $18M | – | 0.39 |
| Novelis Corp. | Long | Debt | US | $19M | – | 0.41 |
| nVent Finance SARL | Long | Debt | LU | $13M | – | 0.29 |
| NXP BV | Long | Debt | US | $9M | – | 0.20 |
| NXP BV | Long | Debt | US | $3M | – | 0.07 |
| OBX Trust, Series 2024-NQM1, Class A1 | Long | ABS-mortgage backed security | US | $4M | – | 0.09 |
| OBX Trust, Series 2024-NQM3, Class A1 | Long | ABS-mortgage backed security | US | $6M | – | 0.13 |
| OBX Trust, Series 2024-NQM5, Class A1 | Long | ABS-mortgage backed security | US | $5M | – | 0.12 |
| Occidental Petroleum Corp. | Long | Debt | US | $15M | – | 0.32 |
| Occidental Petroleum Corp. | Long | Debt | US | $8M | – | 0.18 |
| Occidental Petroleum Corp. | Long | Debt | US | $7M | – | 0.16 |
| Occidental Petroleum Corp. | Long | Debt | US | $6M | – | 0.13 |
| Ontario Teachers' Cadillac Fairview Properties Trust | Long | Debt | CA | $17M | – | 0.38 |
| Oracle Corp. | Long | Debt | US | $11M | – | 0.24 |
| Pacific Gas and Electric Co. | Long | Debt | US | $23M | – | 0.52 |
| Pacific Gas and Electric Co. | Long | Debt | US | $10M | – | 0.23 |
| Pacific Gas and Electric Co. | Long | Debt | US | $9M | – | 0.20 |
| Pacific Gas and Electric Co. | Long | Debt | US | $5M | – | 0.11 |
| Panther Escrow Issuer LLC | Long | Debt | US | $11M | – | 0.24 |
| Permian Resources Operating LLC | Long | Debt | US | $13M | – | 0.29 |
| Permian Resources Operating LLC | Long | Debt | US | $5M | – | 0.11 |
| Pfizer Investment Enterprises Pte. Ltd. | Long | Debt | SG | $9M | – | 0.19 |
| Pfizer, Inc. | Long | Debt | US | $6M | – | 0.13 |
| PFP Ltd., Series 2021-8, Class A | Long | ABS-mortgage backed security | KY | $116K | – | 0.00 |
| PFP Ltd., Series 2021-8, Class AS | Long | ABS-mortgage backed security | KY | $17M | – | 0.39 |
| Philip Morris International, Inc. | Long | Debt | US | $8M | – | 0.17 |
| Philip Morris International, Inc. | Long | Debt | US | $6M | – | 0.13 |
| Pioneer Natural Resources Co. | Long | Debt | US | $18M | – | 0.41 |
| Pioneer Natural Resources Co. | Long | Debt | US | $8M | – | 0.18 |
| Pioneer Natural Resources Co. | Long | Debt | US | $2M | – | 0.06 |
| Plains All American Pipeline LP | Long | Debt | US | $15M | – | 0.33 |
| Plains All American Pipeline LP | Long | Debt | US | $12M | – | 0.26 |
| Plains All American Pipeline LP | Long | Debt | US | $11M | – | 0.25 |
| PNC Financial Services Group, Inc. (The) | Long | Debt | US | $15M | – | 0.33 |
| PNC Financial Services Group, Inc. (The) | Long | Debt | US | $9M | – | 0.21 |
| PPL Electric Utilities Corp. | Long | Debt | US | $12M | – | 0.26 |
| Prologis LP | Long | Debt | US | $21M | – | 0.47 |
| QatarEnergy | Long | Debt | QA | $11M | – | 0.25 |
| Regal Rexnord Corp. | Long | Debt | US | $15M | – | 0.34 |
| Regal Rexnord Corp. | Long | Debt | US | $11M | – | 0.25 |
| Regal Rexnord Corp. | Long | Debt | US | $11M | – | 0.24 |
| RenaissanceRe Holdings Ltd. | Long | Debt | BM | $9M | – | 0.19 |
| Roche Holdings, Inc. | Long | Debt | US | $21M | – | 0.47 |
| Roche Holdings, Inc. | Long | Debt | US | $11M | – | 0.25 |
| Rogers Communications, Inc. | Long | Debt | CA | $7M | – | 0.17 |
| Rogers Communications, Inc. | Long | Debt | CA | $6M | – | 0.14 |
| Royal Bank of Canada | Long | Debt | CA | $13M | – | 0.29 |
| Royal Caribbean Cruises Ltd. | Long | Debt | LR | $18M | – | 0.39 |
| Sammons Financial Group, Inc. | Long | Debt | US | $18M | – | 0.40 |
| Sands China Ltd. | Long | Debt | KY | $13M | – | 0.30 |
| Sands China Ltd. | Long | Debt | KY | $5M | – | 0.11 |
| Santos Finance Ltd. | Long | Debt | AU | $22M | – | 0.49 |
| Saudi Arabian Oil Co. | Long | Debt | SA | $15M | – | 0.34 |
| Saudi Arabian Oil Co. | Long | Debt | SA | $9M | – | 0.20 |
| SBNA Auto Lease Trust, Series 2023-A, Class A2 | Long | ABS-other | US | $7M | – | 0.15 |
| SCIH Salt Holdings, Inc. | Long | Debt | US | $18M | – | 0.39 |
| Sensata Technologies, Inc. | Long | Debt | US | $13M | – | 0.29 |
| Six Flags Entertainment Corp. | Long | Debt | US | $13M | – | 0.29 |
| SMBC Aviation Capital Finance DAC | Long | Debt | IE | $23M | – | 0.52 |
| Southern California Edison Co. | Long | Debt | US | $7M | – | 0.15 |
| Southern California Edison Co. | Long | Debt | US | $3M | – | 0.07 |
| Store Capital LLC | Long | Debt | US | $22M | – | 0.48 |
| Store Capital LLC | Long | Debt | US | $4M | – | 0.09 |
| Sumitomo Mitsui Financial Group, Inc. | Long | Debt | JP | $23M | – | 0.52 |
| Sumitomo Mitsui Trust Bank Ltd. | Long | Debt | JP | $20M | – | 0.44 |
| Summit Materials LLC | Long | Debt | US | $6M | – | 0.14 |
| Summit Materials LLC | Long | Debt | US | $2M | – | 0.04 |
| Sysco Corp. | Long | Debt | US | $8M | – | 0.17 |
| T-Mobile USA, Inc. | Long | Debt | US | $20M | – | 0.44 |
| T-Mobile USA, Inc. | Long | Debt | US | $9M | – | 0.20 |
| T-Mobile USA, Inc. | Long | Debt | US | $9M | – | 0.19 |
| Targa Resources Corp. | Long | Debt | US | $18M | – | 0.39 |
| Targa Resources Corp. | Long | Debt | US | $11M | – | 0.25 |
| Targa Resources Corp. | Long | Debt | US | $4M | – | 0.09 |
| Thermo Fisher Scientific, Inc. | Long | Debt | US | $6M | – | 0.12 |
| Thermo Fisher Scientific, Inc. | Long | Debt | US | $5M | – | 0.11 |
| Toronto-Dominion Bank (The) | Long | Debt | CA | $17M | – | 0.38 |
| Toronto-Dominion Bank (The) | Long | Debt | CA | $13M | – | 0.28 |
| Toyota Lease Owner Trust, Series 2023-A, Class A2 | Long | ABS-other | US | $1M | – | 0.03 |
| TransDigm, Inc. | Long | Debt | US | $20M | – | 0.45 |
| Truist Financial Corp. | Long | Debt | US | $13M | – | 0.30 |
| Truist Financial Corp. | Long | Debt | US | $8M | – | 0.18 |
| U.S. Treasury 10 Year Ultra Note | Derivative-interest rate | US | $-3M | – | -0.07 | |
| U.S. Treasury 2 Year Note | Derivative-interest rate | US | $3M | – | 0.06 | |
| U.S. Treasury 5 Year Note | Derivative-interest rate | US | $-859K | – | -0.02 | |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $59M | – | 1.30 |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $45M | – | 1.00 |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $18M | – | 0.40 |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $13M | – | 0.30 |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $11M | – | 0.25 |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $9M | – | 0.19 |
| U.S. Treasury Bonds (United States of America) | Long | Debt | US | $7M | – | 0.15 |
| U.S. Treasury Long Bond | Derivative-interest rate | US | $3M | – | 0.06 | |
| U.S. Treasury Ultra Bond | Derivative-interest rate | US | $2M | – | 0.04 | |
| UBS Group AG | Long | Debt | CH | $32M | – | 0.71 |
| UBS Group AG | Long | Debt | CH | $19M | – | 0.42 |
| UBS Group AG | Long | Debt | CH | $7M | – | 0.14 |
| UniCredit SpA | Long | Debt | IT | $18M | – | 0.40 |
| UniCredit SpA | Long | Debt | IT | $10M | – | 0.21 |
| United Mexican States | Long | Debt | MX | $5M | – | 0.10 |
| UnitedHealth Group, Inc. | Long | Debt | US | $13M | – | 0.29 |
| UnitedHealth Group, Inc. | Long | Debt | US | $12M | – | 0.27 |
| UnitedHealth Group, Inc. | Long | Debt | US | $12M | – | 0.27 |
| UnitedHealth Group, Inc. | Long | Debt | US | $9M | – | 0.19 |
| Vale Overseas Ltd. | Long | Debt | KY | $10M | – | 0.23 |
| Venture Global Calcasieu Pass LLC | Long | Debt | US | $6M | – | 0.14 |
| Venture Global Calcasieu Pass LLC | Long | Debt | US | $4M | – | 0.10 |
| Venture Global LNG, Inc. | Long | Debt | US | $7M | – | 0.15 |
| Verus Securitization Trust, Series 2024-4, Class A1 | Long | ABS-mortgage backed security | US | $6M | – | 0.13 |
| VICI Properties LP | Long | Debt | US | $7M | – | 0.15 |
| Videotron Ltd. | Long | Debt | CA | $19M | – | 0.41 |
| Virginia Power Fuel Securitization LLC, Series A-1 | Long | Debt | US | $6M | – | 0.12 |
| Visa, Inc. | Long | Debt | US | $8M | – | 0.17 |
| Viterra Finance BV | Long | Debt | NL | $5M | – | 0.10 |
| Viterra Finance BV | Long | Debt | NL | $3M | – | 0.07 |
| Vodafone Group plc | Long | Debt | GB | $20M | – | 0.43 |
| Volkswagen Group of America Finance LLC | Long | Debt | US | $9M | – | 0.19 |
| Vulcan Materials Co. | Long | Debt | US | $9M | – | 0.20 |
| Vulcan Materials Co. | Long | Debt | US | $6M | – | 0.13 |
| Walt Disney Co. (The) | Long | Debt | US | $21M | – | 0.47 |
| Walt Disney Co. (The) | Long | Debt | US | $8M | – | 0.17 |
| Walt Disney Co. (The) | Long | Debt | US | $2M | – | 0.05 |
| Warnermedia Holdings, Inc. | Long | Debt | US | $9M | – | 0.19 |
| Waste Management, Inc. | Long | Debt | US | $14M | – | 0.30 |
| WEC Energy Group, Inc. | Long | Debt | US | $24M | – | 0.52 |
| Wells Fargo & Co. | Long | Debt | US | $14M | – | 0.31 |
| Wells Fargo & Co. | Long | Debt | US | $13M | – | 0.29 |
| Wells Fargo & Co. | Long | Debt | US | $4M | – | 0.10 |
| Westinghouse Air Brake Technologies Corp. | Long | Debt | US | $11M | – | 0.24 |
| Westinghouse Air Brake Technologies Corp. | Long | Debt | US | $9M | – | 0.19 |
| Westinghouse Air Brake Technologies Corp. | Long | Debt | US | $6M | – | 0.12 |
| WP Carey, Inc. | Long | Debt | US | $13M | – | 0.28 |
| Wynn Macau Ltd. | Long | Debt | KY | $14M | – | 0.32 |
| Xcel Energy, Inc. | Long | Debt | US | $17M | – | 0.39 |
Address
MFS Series Trust IX
111 Huntington Avenue
Boston
Massachusetts
02199
United States of America
Websites
Directors
Maryanne L. Roepke
John A. Caroselli
John P. Kavanaugh
Clarence Otis, Jr.
Laurie J. Thomsen
Peter D. Jones
Michael W. Roberge
Steven E. Buller
Maureen R. Goldfarb
James W. Kilman, Jr.
Transfer Agents
MFS SERVICE CENTER, INC.
Pricing Services
ICE Data Pricing & Reference Data, LLC
PricingDirect Inc.
S&P Global
LSEG
Custodians
JPMorgan Chase Bank, National Association
Euroclear
Shareholder Servicing Agents
MFS Service Center, Inc.
Admins
MASSACHUSETTS FINANCIAL SERVICES
Brokers
BofA Securities, Inc.
Merrill Lynch, Pierce, Fenner & Smith Inc.