MFS Total Return Bond Fund I (MRBIX)

9.65 0.00 (0.00%) USD  |  Dec 22 2025
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MRBIX Share Class Assets Under Management: 1.846B for Dec. 22, 2025

Share Class Assets Under Management Chart

Sep '18
Jan '19
May '19
 
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270.00
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240.00
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Historical Data

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Share Class Assets Under Management (AUM) Definition

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Share Class Assets Under Management (AUM) is the total market value of the investments that a fund holds with regards to a specific Share Class of the fund.

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Share Class Assets Under Management Range, Past 5 Years

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Share Class Assets Under Management Benchmarks

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Aristotle Core Income Fund I-2 2.238B
Transamerica Bond I 1.781B
MFS Income Fund I 4.683B
Harbor Core Plus Fund Institutional 1.153B
Fidelity Advisor Total Bond Fund I 11.74B

Share Class Assets Under Management Excel Add-In Codes

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Metric Code: assets_under_management
Latest Data Point: =YCP("M:MRBIX", "assets_under_management")
Last 5 Data Points: =YCS("M:MRBIX", "assets_under_management", -4)
To find the codes for any of our securities and financial metrics, see our Complete Excel Reference.