ETF Research

MFSB: MFS ACTIVE CORE PLUS BOND ETF

Generated from StockValueFinder data · Updated Oct 12, 2026 1:35 AM
Educational content only. This is not financial advice and is not a recommendation to buy, sell, or hold any ETF.

What this ETF is trying to do

The MFS Active Core Plus Bond ETF (MFSB) is a fund that invests in various bonds. Based on its top holdings, it focuses heavily on U.S. government debt, such as Treasury bonds and notes, as well as some corporate bonds.

What the numbers show

As of October 5, 2026, the share price is $23.79. To understand how the price has changed, we can look at the price return and the total return.

• Price Return: This measures only the change in the share price. The one-year price return is -5.97%, and the year-to-date (YTD) price return is -5.65%.

• Total Return: This reflects the overall return, including the cash distributions paid to investors. The one-year total return is -1.55%, and the YTD total return is -2.31%.

For example, if you had invested $10,000 based on the estimated price from roughly one year ago ($25.30), the price-only decline of -5.97% would mean your shares are now worth approximately $9,403, not counting any cash distributions you received.

Income and distribution explanation

This ETF usually pays distributions monthly. Over the last 12 months, it has made 12 payments totaling $1.15 per share. This results in a distribution yield of approximately 4.82%.

It is important for beginners to remember that a high distribution yield alone can be misleading. While these payments provide cash income, they do not guarantee that the original investment (the principal) will stay the same or grow.

NAV erosion explanation

"NAV erosion" happens when the net asset value of a fund declines over time. StockValueFinder uses an erosion-risk score to measure this. MFSB has an erosion score of 75, which is labeled as "Mild price erosion." This is a measurement of risk rather than proof that the fund's value has collapsed. The severe erosion-risk flag for this ETF is currently false.

Top Holdings

The fund holds 293 different assets. As of October 7, 2026, the top holdings (which are a partial list) include:

• United States Treasury Bonds 4.625%: 11.39%

• United States Treasury Notes 3.875%: 3.73%

• SSC Government MM GVMXX: 2.19%

• United States Treasury Notes 4.125%: 2.16%

• Federal Home Loan Mortgage Corp. 5%: 0.95%

Pros

• Provides regular monthly cash distributions.

• Invests in high-quality U.S. Treasury bonds.

Cons

• The share price has declined over the last year.

• The total return is negative for both the year-to-date and one-year periods.

Beginner takeaway

MFSB provides monthly income, but the share price has been falling. While the total return is higher than the price return because of the distributions, both numbers are currently negative. Income investors generally look for principal stability, meaning they want their initial investment to stay steady while they collect payments.

Top Holdings

Structured portfolio holdings supplied by the ETF data provider. These figures are not generated by the AI article.

293 holdings available
# Holding Ticker Weight
1 UNITED STATES TREASURY BONDS 4.625% n/a 11.39%
2 UNITED STATES TREASURY NOTES 3.875% n/a 3.73%
3 SSC GOVERNMENT MM GVMXX n/a 2.19%
4 UNITED STATES TREASURY NOTES 4.125% n/a 2.16%
5 FEDERAL HOME LOAN MORTGAGE CORP. 5% n/a 0.95%
6 UNITED STATES TREASURY BONDS 4.5% n/a 0.94%
7 UNITED STATES TREASURY BONDS 5% n/a 0.76%
8 UNITED STATES TREASURY BONDS 4.875% n/a 0.70%
9 BANK OF AMERICA CORP. 5.744% n/a 0.60%
10 BOSTON PROPERTIES LP 5.75% n/a 0.58%
Show all 293 holdings
1. UNITED STATES TREASURY BONDS 4.625% n/a 11.39%
2. UNITED STATES TREASURY NOTES 3.875% n/a 3.73%
3. SSC GOVERNMENT MM GVMXX n/a 2.19%
4. UNITED STATES TREASURY NOTES 4.125% n/a 2.16%
5. FEDERAL HOME LOAN MORTGAGE CORP. 5% n/a 0.95%
6. UNITED STATES TREASURY BONDS 4.5% n/a 0.94%
7. UNITED STATES TREASURY BONDS 5% n/a 0.76%
8. UNITED STATES TREASURY BONDS 4.875% n/a 0.70%
9. BANK OF AMERICA CORP. 5.744% n/a 0.60%
10. BOSTON PROPERTIES LP 5.75% n/a 0.58%
11. n/a n/a 0.49%
12. MORGAN STANLEY 5.664% n/a 0.48%
13. COREBRIDGE FINANCIAL INC. 5.75% n/a 0.46%
14. CIFC FUNDING 2024-I LTD 6.27921% n/a 0.45%
15. JEFFERIES FINANCIAL GROUP INC 5.5% n/a 0.45%
16. n/a n/a 0.45%
17. n/a n/a 0.45%
18. n/a n/a 0.45%
19. BOOZ ALLEN HAMILTON INC 5.95% n/a 0.42%
20. FEDERAL NATIONAL MORTGAGE ASSOCIATION 2% n/a 0.42%
21. UNITED STATES TREASURY BONDS 4.25% n/a 0.42%
22. FEDERAL NATIONAL MORTGAGE ASSOCIATION 6% n/a 0.34%
23. FEDERAL NATIONAL MORTGAGE ASSOCIATION 5% n/a 0.32%
24. BRIXMOR OPERATING PARTNERSHIP LP 5.75% n/a 0.31%
25. DEUTSCHE BANK AG NEW YORK BRANCH 5.403% n/a 0.31%
26. JH NORTH AMERICA HOLDINGS INC. 6.125% n/a 0.31%
27. n/a n/a 0.31%
28. n/a n/a 0.31%
29. PERFORMANCE FOOD GROUP INC 6.125% n/a 0.31%
30. VENTURE GLOBAL LNG INC. 7% n/a 0.31%
31. BSPRT 2026-FL13 ISSUER LLC 5.88692% n/a 0.30%
32. DWIGHT 2026-FL2 ISSUER LLC 5.88692% n/a 0.30%
33. n/a n/a 0.30%
34. n/a n/a 0.30%
35. n/a n/a 0.30%
36. NTT FINANCE CORP 5.502% n/a 0.30%
37. RAVEN ACQUISITION HOLDING LLC 6.875% n/a 0.30%
38. TRTX 2025-FL7 ISSUER LTD 5.58692% n/a 0.30%
39. BOMBARDIER INC. 6.75% n/a 0.29%
40. CBRE SERVICES INC 5.95% n/a 0.29%
41. FEDERAL HOME LOAN MORTGAGE CORP. 2.5% n/a 0.29%
42. HUB INTERNATIONAL LTD. 7.25% n/a 0.29%
43. POST HOLDINGS INC. 6.25% n/a 0.29%
44. QUIKRETE HOLDINGS INC 6.375% n/a 0.29%
45. SCIH SALT HOLDINGS INC. 8% n/a 0.29%
46. COREWEAVE INC. 9.75% n/a 0.28%
47. DICK'S SPORTING GOODS, INC. 3.15% n/a 0.28%
48. EQUIPMENTSHARE COM INC. 7.125% n/a 0.28%
49. SIX FLAGS ENTERTAINMENT CORP. 6.625% n/a 0.28%
50. WELLS FARGO & CO. 4.892% n/a 0.28%
51. ROGERS COMMUNICATIONS INC. 3.8% n/a 0.27%
52. TRANSDIGM, INC. 6.375% n/a 0.27%
53. DCP MIDSTREAM OPERATING LP 3.25% n/a 0.26%
54. ENEL FINANCE INTERNATIONAL N.V. 7.5% n/a 0.26%
55. FEDERAL HOME LOAN MORTGAGE CORP. 2% n/a 0.26%
56. FEDERAL HOME LOAN MORTGAGE CORP. 3.5% n/a 0.26%
57. IAMGOLD CORP 5.75% n/a 0.26%
58. MF1 2022-FL8 LTD 6.09077% n/a 0.26%
59. n/a n/a 0.26%
60. REGAL REXNORD CORPORATION 6.4% n/a 0.26%
61. B.A.T. CAPITAL CORPORATION 4.625% n/a 0.25%
62. CAPITAL ONE FINANCIAL CORP. 5.197% n/a 0.25%
63. CHARLES SCHWAB CORP. (THE) 5% n/a 0.25%
64. GLOBAL PAYMENTS INC 2.9% n/a 0.25%
65. BDS 2026-FL18 LLC 5.59077% n/a 0.24%
66. FERGUSON ENTERPRISES INC 5% n/a 0.24%
67. ORACLE CORP. 5.7% n/a 0.24%
68. STORE CAPITAL LLC 4.95% n/a 0.24%
69. ARES LXVII CLO LTD / LLC 5.51015% n/a 0.23%
70. CEDAR FUNDING VI CLO LTD / LLC 5.52921% n/a 0.23%
71. DRYDEN 98 CLO LTD 5.62921% n/a 0.23%
72. n/a n/a 0.23%
73. NORTHERN STAR RESOURCES LTD. 6.125% n/a 0.23%
74. US DOLLAR n/a 0.23%
75. HYUNDAI CAPITAL AMERICA 5.25% n/a 0.22%
76. SAMMONS FINANCIAL GROUP INC 6.875% n/a 0.22%
77. VODAFONE GROUP PLC 5.35% n/a 0.22%
78. COLOMBIA (REPUBLIC OF) 7.75% n/a 0.21%
79. GUATEMALA (REPUBLIC OF) 6.6% n/a 0.21%
80. HYUNDAI CAPITAL AMERICA 6.375% n/a 0.21%
81. n/a n/a 0.21%
82. n/a n/a 0.21%
83. AREIT 2026-CRE12 LTD 5.68692% n/a 0.20%
84. BAIN CAPITAL CREDIT LIMITED 5.27921% n/a 0.20%
85. HUNGARY (REPUBLIC OF) 5.5% n/a 0.20%
86. IVORY COAST (REPUBLIC OF) 7.625% n/a 0.20%
87. n/a n/a 0.20%
88. n/a n/a 0.20%
89. NOMURA HOLDINGS INC. 5.043% n/a 0.20%
90. OBX 2026-INV4 TRUST 5.14029% n/a 0.20%
91. PATRICK INDUSTRIES INC. 6.375% n/a 0.20%
92. UNITED STATES TREASURY BONDS 4.75% n/a 0.20%
93. BROADCOM INC 4.8% n/a 0.19%
94. CHARLES SCHWAB CORP. (THE) 6.1% n/a 0.19%
95. PMT LOAN TRUST 2026-INV2 4.84029% n/a 0.19%
96. SMBC AVIATION CAPITAL FINANCE 5.25% n/a 0.19%
97. UNITY-PEACE PARK CLO LTD 5.37921% n/a 0.19%
98. GOVERNMENT NATIONAL MORTGAGE ASSOCIATION 2.27022% n/a 0.18%
99. NOMURA HOLDINGS INC. 7% n/a 0.18%
100. ROMANIA (REPUBLIC OF) 6% n/a 0.18%
101. SOUTH AFRICA (REPUBLIC OF) 7.25% n/a 0.18%
102. EQT CORPORATION 4.75% n/a 0.17%
103. FEDERAL HOME LOAN MORTGAGE CORP. 3% n/a 0.17%
104. n/a n/a 0.17%
105. PFS FINANCING CORP 4.3485% n/a 0.17%
106. BAHAMAS (COMMONWEALTH OF) 8.95% n/a 0.16%
107. n/a n/a 0.16%
108. SAMMONS FINANCIAL GROUP INC 5.95% n/a 0.16%
109. WELLS FARGO & CO. 3.35% n/a 0.16%
110. ARGENTINA (REPUBLIC OF) 3.5% n/a 0.15%
111. DRYDEN 86 CLO LTD 5.64952% n/a 0.15%
112. LAS VEGAS SANDS CORP 5.625% n/a 0.15%
113. n/a n/a 0.15%
114. n/a n/a 0.15%
115. n/a n/a 0.15%
116. n/a n/a 0.15%
117. PFP 2026-13 LTD 5.53692% n/a 0.15%
118. BOOZ ALLEN HAMILTON INC 5.9% n/a 0.14%
119. n/a n/a 0.14%
120. PFP 2026-13 LTD 5.73692% n/a 0.14%
121. FEDERAL HOME LOAN MORTGAGE CORP. 5.5% n/a 0.13%
122. n/a n/a 0.13%
123. SMBC AVIATION CAPITAL FINANCE 5.2% n/a 0.13%
124. UBS GROUP AG 4.375% n/a 0.13%
125. AON NA/AON GLOBAL COMPANY GUAR 09/33 5.8 n/a 0.12%
126. BAIN CAPITAL CREDIT LIMITED 5.32921% n/a 0.12%
127. FEDERAL HOME LOAN MORTGAGE CORP. 4.5% n/a 0.12%
128. MEXICO (UNITED MEXICAN STATES) 6.875% n/a 0.12%
129. n/a n/a 0.12%
130. PARAGUAY (REPUBLIC OF) 6.65% n/a 0.12%
131. SALESFORCE INC. 5.2% n/a 0.12%
132. SERBIA (REPUBLIC OF) 6% n/a 0.12%
133. STORE CAPITAL CORP. 2.7% n/a 0.12%
134. AMERICAN TOWER CORPORATION 5.4% n/a 0.11%
135. ASPIRE MORTGAGE TRUST 2026-2 5.325% n/a 0.11%
136. BP CAPITAL MARKETS PLC 6.45% n/a 0.11%
137. JPMORGAN CHASE & CO. 4.851% n/a 0.11%
138. n/a n/a 0.11%
139. OCCIDENTAL PETROLEUM CORP. 5.55% n/a 0.11%
140. OCTAGON 57 LTD. 5.60292% n/a 0.11%
141. PHILIP MORRIS INTERNATIONAL INC. 5.375% n/a 0.11%
142. TRINITAS CLO VIII LTD. 5.46015% n/a 0.11%
143. CALIFORNIA PUB FIN AUTH REV 5.4% n/a 0.10%
144. CAPITAL ONE FINANCIAL CORP. 6.377% n/a 0.10%
145. CAPITAL ONE FINANCIAL CORP. 6.7% n/a 0.10%
146. FORD MOTOR CREDIT COMPANY LLC 6.05% n/a 0.10%
147. GOLDMAN SACHS GROUP, INC. 5.655% n/a 0.10%
148. PHILIP MORRIS INTERNATIONAL INC. 4.875% n/a 0.10%
149. SAMARCO MINERACAO SA 4% n/a 0.10%
150. SIGNAL PEAK CLO 1 LTD. 5.34952% n/a 0.10%
151. COLBUN S.A. 5.375% n/a 0.09%
152. ENI SPA 5.5% n/a 0.09%
153. FEDERAL HOME LOAN MORTGAGE CORP. 6% n/a 0.09%
154. GOLDENTREE LN MGM 20 LTD/LLC 5.52921% n/a 0.09%
155. INDUSTRIAL SUBORDINATED TRUST 2.0 6.55% n/a 0.09%
156. JPMORGAN CHASE & CO. 5.766% n/a 0.09%
157. MARRIOTT INTERNATIONAL, INC. 5.25% n/a 0.09%
158. n/a n/a 0.09%
159. n/a n/a 0.09%
160. n/a n/a 0.09%
161. NIPPON LIFE INSURANCE CO. 6.5% n/a 0.09%
162. PATRICK INDUSTRIES INC. 4.75% n/a 0.09%
163. PMT LOAN TRUST 2026-INV4 5.14029% n/a 0.09%
164. SANTOS FINANCE LTD. 6.875% n/a 0.09%
165. WELLS FARGO & CO. 5.574% n/a 0.09%
166. ENTERPRISE FLEET FINANCING 2026-1 LLC 4% n/a 0.08%
167. FEDERAL HOME LOAN MORTGAGE CORP. 4% n/a 0.08%
168. FEDERAL NATIONAL MORTGAGE ASSOCIATION 3% n/a 0.08%
169. n/a n/a 0.08%
170. n/a n/a 0.08%
171. n/a n/a 0.08%
172. RATE MORTGAGE TRUST 2025-J3 5.24029% n/a 0.08%
173. T-MOBILE USA, INC. 4.95% n/a 0.08%
174. ANGLO AMERICAN CAPITAL PLC 5.5% n/a 0.07%
175. CHESAPEAKE IV FUNDING 2026-1 DAC 4.26% n/a 0.07%
176. CPS AUTO RECEIVABLES TRUST 2026-A 4.35% n/a 0.07%
177. FAIRFAX FINANCIAL HOLDINGS LIMITED 5.75% n/a 0.07%
178. FORD MOTOR CREDIT COMPANY LLC 5.73% n/a 0.07%
179. HARBOR PARK CLO LTD. 6.22921% n/a 0.07%
180. JPMORGAN CHASE & CO. 6.1% n/a 0.07%
181. MACQUARIE BANK LTD. 6.125% n/a 0.07%
182. MEXICO (UNITED MEXICAN STATES) 6.625% n/a 0.07%
183. n/a n/a 0.07%
184. n/a n/a 0.07%
185. PANAMA (REPUBLIC OF) 6.7% n/a 0.07%
186. PERU (REPUBLIC OF) 5.875% n/a 0.07%
187. BANK OF AMERICA CORP. 5.288% n/a 0.06%
188. BARCLAYS PLC 5.586% n/a 0.06%
189. BOFA AUTO TRUST 2026-1 4.1% n/a 0.06%
190. COLUMBIA CENT CLO 30 LTD 5.62921% n/a 0.06%
191. GOLDMAN SACHS GROUP, INC. 2.65% n/a 0.06%
192. GOLDMAN SACHS GROUP, INC. 6.85% n/a 0.06%
193. MARBLE POINT CLO XXII LTD 5.51668% n/a 0.06%
194. MASSACHUSETTS ST DEV FIN AGY REV 7.375% n/a 0.06%
195. MORGAN STANLEY 5.32% n/a 0.06%
196. MORGAN STANLEY 5.449% n/a 0.06%
197. n/a n/a 0.06%
198. n/a n/a 0.06%
199. n/a n/a 0.06%
200. n/a n/a 0.06%
201. OCP SA 6.75% n/a 0.06%
202. PMT LOAN TRUST 2026-CNF4 5.04029% n/a 0.06%
203. SMBC AVIATION CAPITAL FINANCE 5.55% n/a 0.06%
204. SMBC AVIATION CAPITAL FINANCE 5.7% n/a 0.06%
205. TURKEY (REPUBLIC OF) 5.95% n/a 0.06%
206. BARINGS CLO 2018-III LLC 5.35921% n/a 0.05%
207. CAPITAL ONE FINANCIAL CORP. 7.624% n/a 0.05%
208. CBRE SERVICES INC 5.25% n/a 0.05%
209. COLUMBIA CENT CLO 31 LTD 5.57921% n/a 0.05%
210. EQT CORPORATION 5% n/a 0.05%
211. JERSEY MIKE'S FUNDING LLC 4.952% n/a 0.05%
212. MORGAN STANLEY 5.605% n/a 0.05%
213. n/a n/a 0.05%
214. PETROLEOS MEXICANOS SA DE CV 6.35% n/a 0.05%
215. TRANSDIGM, INC. 4.625% n/a 0.05%
216. TRTX 2025-FL7 ISSUER LTD 5.83692% n/a 0.05%
217. VODAFONE GROUP PLC 5.625% n/a 0.05%
218. ALIMENTATION COUCHE-TARD INC. 5.267% n/a 0.04%
219. B.A.T. CAPITAL CORPORATION 4.742% n/a 0.04%
220. BARDOT CLO LTD 5.08322% n/a 0.04%
221. BARDOT CLO LTD 5.28322% n/a 0.04%
222. BOSTON GAS COMPANY 3.757% n/a 0.04%
223. BOSTON PROPERTIES LP 6.5% n/a 0.04%
224. BROADCOM INC 3.137% n/a 0.04%
225. BROADCOM INC 5.2% n/a 0.04%
226. CATHEDRAL LAKE LTD 2021-6 5.66015% n/a 0.04%
227. DRYDEN 43 SENIOR LOAN FUND 5.47921% n/a 0.04%
228. FNMA PASS-THRU I 6% n/a 0.04%
229. GALLAGHER AJ &CO 5.45% n/a 0.04%
230. HYUNDAI CAPITAL AMERICA 5.3% n/a 0.04%
231. MARRIOTT INTERNATIONAL, INC. 2.85% n/a 0.04%
232. n/a n/a 0.04%
233. n/a n/a 0.04%
234. n/a n/a 0.04%
235. n/a n/a 0.04%
236. n/a n/a 0.04%
237. ORACLE CORP. 5.2% n/a 0.04%
238. REGAL REXNORD CORPORATION 6.3% n/a 0.04%
239. SIGNAL PEAK CLO 1 LTD. 5.69952% n/a 0.04%
240. STORE CAPITAL CORP. 4.5% n/a 0.04%
241. STORE CAPITAL CORP. 4.625% n/a 0.04%
242. ASHTEAD CAPITAL INC. 5.5% n/a 0.03%
243. B.A.T. CAPITAL CORPORATION 6.343% n/a 0.03%
244. BANK OF AMERICA CORP. 3.846% n/a 0.03%
245. BROWN & BROWN INC 5.65% n/a 0.03%
246. CAPITAL ONE FINANCIAL CORP. 5.399% n/a 0.03%
247. ELECTRICITE DE FRANCE SA 6.9% n/a 0.03%
248. FHLMC SUPER 30Y FIXED 5% n/a 0.03%
249. LPL HOLDINGS INC. 4.375% n/a 0.03%
250. LPL HOLDINGS INC. 6% n/a 0.03%
251. MACQUARIE AIRFINANCE HOLDINGS LTD 6.4% n/a 0.03%
252. METLIFE INC. 6.35% n/a 0.03%
253. MEXICO (UNITED MEXICAN STATES) 6% n/a 0.03%
254. MORGAN STANLEY 5.942% n/a 0.03%
255. n/a n/a 0.03%
256. NOMURA HOLDINGS INC. 5.545% n/a 0.03%
257. NTT FINANCE CORP 5.2588% n/a 0.03%
258. PACIFIC GAS AND ELECTRIC COMPANY 6.95% n/a 0.03%
259. PALMER SQ LN FDG 24-1 LTD /LLC 4.57292% n/a 0.03%
260. PHILIP MORRIS INTERNATIONAL INC. 5.25% n/a 0.03%
261. PLAINS ALL AMERICAN PIPELINE L.P. 5.7% n/a 0.03%
262. PMT LOAN TRUST 2026-CNF1 4.89029% n/a 0.03%
263. T-MOBILE USA, INC. 2.55% n/a 0.03%
264. T-MOBILE USA, INC. 5% n/a 0.03%
265. UBS GROUP AG 6.875% n/a 0.03%
266. YINSON BERGENIA PRODUCTION BV 8.498% n/a 0.03%
267. AFFIRM MASTER TRUST 4.67% n/a 0.02%
268. ARI FLEET LEASE TRUST 2026-A 3.96% n/a 0.02%
269. BACARDI LTD. 5.15% n/a 0.02%
270. BANK OF AMERICA CORP. 6.25% n/a 0.02%
271. BOEING CO. 5.805% n/a 0.02%
272. CITIGROUP INC. 6.5% n/a 0.02%
273. FEDERAL HOME LOAN MORTGAGE CORP. 6.5% n/a 0.02%
274. JEFFERIES FINANCIAL GROUP INC 5.125% n/a 0.02%
275. LPL HOLDINGS INC. 4% n/a 0.02%
276. MORGAN STANLEY 5.17% n/a 0.02%
277. n/a n/a 0.02%
278. n/a n/a 0.02%
279. n/a n/a 0.02%
280. PALMER SQ LN FDG 24-1 LTD /LLC 5.20292% n/a 0.02%
281. PETROLEOS MEXICANOS SA DE CV 5.95% n/a 0.02%
282. CAPITAL ONE FINANCIAL CORP. 6.051% n/a 0.01%
283. CONSTELLATION BRANDS, INC. 4.8% n/a 0.01%
284. FEDERAL HOME LOAN BANKS 6.5% n/a 0.01%
285. MF1 2022-FL8 LTD 5.24077% n/a 0.01%
286. n/a n/a 0.01%
287. ORACLE CORP. 5.95% n/a 0.01%
288. PROVIDENT FUNDING MORTGAGE TRUST 2025-2 5.5% n/a 0.01%
289. ALIMENTATION COUCHE-TARD INC. 5.077% n/a 0.00%
290. EURO CURRENCY n/a 0.00%
291. HYUNDAI AUTO LEASE SECURITIZATION TRUST 4.58% n/a 0.00%
292. SANTANDER DRIVE AUTO 2025-1 4.74% n/a 0.00%
293. STELLANTIS FIN UW TR 2025-A 4.63% n/a 0.00%
Holdings data last updated Oct 7, 2026 4:45 AM . Provider-reported weights may not sum exactly to 100%.
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