MBRRX Mutual Fund

NAV$12.14

AUM$8M

TER1.01%

Holdings429

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MBRRX Mutual Fund

NAV$12.14

MFS Corporate Bond Fund Class R2

AUM$8M

TER1.01%

Holdings429

See how much of MBRRX you already own

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Overview Performance Chart Dividends Top Holdings All Holdings Sectors Geography Similar Compare Overlap

Showing top 50 of 414 holdings · as of Jan 31, 2026

MBRRX holdings, by weight
#	Ticker	Name	Weight	Cumulative	Shares	Mkt value	Sector	Industry
1	—	Mfs Institutional Money Market Portfolio	2.23%	2.2%	100,714,286	$100.73M	-	-
2	—	Ubs Group Ag 144A 3.13% Aug 13, 2030Financials · Banks	0.76%	3.0%	-	$34.18M	Financials	Banks
Sector and industry · Pro
3	Debt	JPMorgan Chase & Co	0.74%	3.7%	-	$33.56M
4	—	Boeing Co 5.805%, Due 05/01/2050	0.73%	4.5%	-	$33.05M
5	—	Charles Schwab Corporation 4.914% 14-Nov-2036, 4.91%, 11/14/36	0.61%	5.1%	-	$27.46M
6	Debt	Bermud	0.57%	5.6%	-	$25.86M
7	Debt	Morgan Stanley Mtn 5.07% Jan 30, 2037	0.57%	6.2%	-	$25.72M
8	Debt	Sumitomo Mitsui Finl Grp Sr Unsecured 01/31 1.71	0.56%	6.8%	-	$25.29M
9	—	Maxam Prill Sarl Sr Secured 144A 07/30 7.75	0.55%	7.3%	-	$24.76M
10	Debt	Us Treas Bds	0.54%	7.9%	-	$24.62M
11	—	Caixabank SA V/r 09/13/34	0.53%	8.4%	-	$23.94M
12	—	Aib Group Plc Regd V/R 144A P/P 6.60800000	0.50%	8.9%	-	$22.42M
13	Debt	American Homes 4 Rent Lp	0.50%	9.4%	-	$22.40M
14	Debt	Northwest	0.50%	9.9%	-	$22.51M
15	—	NXP BV 5.25% Aug 19, 2035	0.48%	10.4%	-	$21.87M
16	—	Smbc Aviation Capital Finance Dac	0.48%	10.9%	-	$21.74M
17	—	Bacardi Ltd / Bacardi Martini Bv 06-15-2033	0.45%	11.3%	-	$20.32M
18	—	Jersey Central Power & Light Co 144A 2.750000% 03/01/2032 Callable 12/01/2031 At 100.0000	0.45%	11.8%	-	$20.46M
19	—	Mars, Inc.	0.45%	12.2%	-	$20.31M
20	—	Marsh & Mclennan Companies Inc 4.85% Nov 15, 2031	0.45%	12.6%	-	$20.33M
21	—	Element Fleet Management Corp. 6.319 12-04-2028	0.44%	13.1%	-	$20.10M
22	—	JPMorgan Chase & Co 4.95% Oct 22, 2035	0.44%	13.5%	-	$20.06M
23	Debt	Jane Street Gr	0.44%	14.0%	-	$19.71M
24	Debt	National Australia Bank Ltd Mtn 144A 3.35% Jan 12, 2037	0.44%	14.4%	-	$19.93M
25	—	Carlyle Group Inc/The 5.05% 19Sep2035	0.44%	14.8%	-	$19.74M
26	Debt	Hub International, Ltd	0.44%	15.3%	-	$19.99M
27	Debt	Eagle Funding Luxco Sarl	0.43%	15.7%	-	$19.60M
28	Debt	Hsbc Holdings Plc	0.43%	16.1%	-	$19.57M
29	—	Boston Gas Co.	0.42%	16.6%	-	$19.20M
30	Debt	Flutter Treasury Dac Sr Secured 144A 06/31 5.875	0.42%	17.0%	-	$18.80M
31	Debt	Scih Salt Holdings Inc	0.42%	17.4%	-	$18.84M
32	—	Spire Inc Jr Subordina 06/56 Var	0.42%	17.8%	-	$19.20M
33	—	Sunoco Lp 144A 6.63 Aug 15, 2032	0.42%	18.3%	-	$18.79M
34	—	Pioneer Natural Resources Co., 2.15%, due 01/15/2031	0.41%	18.7%	-	$18.65M
35	—	Videotron Ltd	0.41%	19.1%	-	$18.77M
36	Debt	Highwoods Realty Lp Sr Unsecured 01/33 5.35 5.35% 20330115	0.41%	19.5%	-	$18.64M
37	Debt	JPMorgan Chase + Co Sr Unsecured 01/37 Var	0.41%	19.9%	-	$18.32M
38	Debt	Icon Investments Six Dac Sr Secured 05/27	0.40%	20.3%	-	$18.28M
39	MUFG	Mitsubishi Ufj Financial Group, Inc.	0.40%	20.7%	-	$18.06M
40	NST	Northern Star Resources Ltd	0.40%	21.1%	-	$18.17M
41	—	Royal Caribbean Cruises Ltd 144A 4.25% Jul 01, 2026	0.40%	21.5%	-	$18.05M
42	Debt	Store Capital Corp Sr Unsecured 12/31 2.7	0.40%	21.9%	-	$18.30M
43	—	Pacific Life Insurance Company 144A 5.95% Sep 15, 2055	0.40%	22.3%	-	$18.04M
44	Debt	Primo Water Holdings Inc / Triton Water Holdings Inc	0.39%	22.7%	-	$17.74M
45	—	Targa Resources Corp 4.95% Apr 15, 2052	0.39%	23.1%	-	$17.73M
46	—	Transdigm Inccorp. Note	0.39%	23.5%	-	$17.46M
47	Debt	Xcel Energy Inc	0.39%	23.8%	-	$17.73M
48	Debt	Eastern Energy Gas Sr Unsecured 10/54 5.65	0.39%	24.2%	-	$17.77M
49	Debt	American Interna	0.38%	24.6%	-	$17.14M
50	Debt	Cheniere Energy Partners Lp	0.38%	25.0%	-	$17.28M
More holdings · Pro

Not reported for this fund: share changes.

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MBRRX Mutual Fund All Holdings

MBRRX holdings total 429 positions. The top 10 holdings account for 7.9% of the fund, led by Mfs Institutional Money Market Portfolio at 2.2%, Ubs Group Ag 144A 3.13% Aug 13, 2030 at 0.8%, Jpmorgan Chase & Co 2.545 11/08/2032 at 0.7%.

MBRRX portfolio concentration is well-diversified, with the top 10 representing 7.9% of total assets. The largest sector exposure is Financials at 31.4%.

MBRRX sectors provide a detailed breakdown. MBRRX overlap shows how holdings compare to other funds in your portfolio.