MFS Total Return Series
MFS Total Return Series: Structured-Finance Exposure#
Quick Answer: Structured-Finance Holdings
As of the reporting period ending December 31, 2025, MFS Total Return Series reported 734 structured-finance (asset-backed) positions totaling $428.6M, 18.6% of its $2.3B SEC Form N-PORT portfolio.
Source: SEC Form N-PORT (CIK 918571)Reporting period ending December 31, 2025License: CC BY 4.0. Cite as DealCharts, dealcharts.org.Facts JSON
What structured-finance securities does MFS Total Return Series hold?
MFS Total Return Series reported 734 structured-finance (asset-backed) positions totaling $428.6M, 18.6% of its $2.3B portfolio, as of the reporting period ending December 31, 2025 (SEC Form N-PORT). Breakdown by type: mortgage-backed securities (ABS-MBS): 678 positions ($319.5M, 13.9%); collateralized bond/debt obligations (ABS-CBDO): 37 positions ($99.9M, 4.3%); other asset-backed securities (ABS-O): 19 positions ($9.2M, 0.4%).
What is MFS Total Return Series's asset-backed / mortgage-backed securities (ABS/MBS) exposure?
MFS Total Return Series's structured-finance (ABS/MBS) exposure is $428.6M across 734 positions, or 18.6% of the $2.3B portfolio, as of the reporting period ending December 31, 2025.
As of when is MFS Total Return Series's structured-finance holdings data reported?
This reflects MFS Total Return Series's most recent SEC Form N-PORT filing, filed February 24, 2026, covering the reporting period ending December 31, 2025. Figures are point-in-time holdings as reported to the SEC.
Where can I get MFS Total Return Series's structured-finance holdings data?
MFS Total Return Series's holdings are sourced from its SEC Form N-PORT filing (SEC CIK 918571) and republished by DealCharts as structured, machine-readable data through the Facts JSON endpoint linked on this page. The data is free to reuse under a Creative Commons Attribution 4.0 (CC BY 4.0) license. Cite as DealCharts (dealcharts.org).
Does DealCharts track MFS Total Return Series's latest news, products, partnerships, or leadership changes?
No. DealCharts covers MFS Total Return Series's structured-finance holdings and exposure derived from SEC Form N-PORT filings, not corporate news, product launches, partnerships, acquisitions, earnings, or executive changes. For those, consult the fund sponsor's own disclosures or SEC EDGAR full-text filings.
Fund Overview
Fund Metrics
Portfolio summary and asset distribution sourced from SEC NPORT-P filings.Portfolio Summary
- Total Value
- $2,305,453,246
- Total Positions
- 1,023
- Average Position Size
- $2,253,620
Asset Distribution
- Filing Date
- February 24, 2026
- Report Date
- December 31, 2025
Holdings
All portfolio holdings for this fund, sourced from the most recent NPORT-P filing on SEC EDGAR.Context & Commentary#
Expert analysis, research, and commentary from verified entities and contributors.Portfolio Context
This profile reflects MFS Total Return Series's most recent SEC Form N-PORT filing, dated February 24, 2026, covering the reporting period ending December 31, 2025.
MFS Total Return Series reported 1,023 portfolio positions with a total reported market value of $2.3B as of the reporting period ending December 31, 2025, an average of $2.3M per position.
By reported market value, the portfolio was predominantly equity-oriented (59.0% of holdings).
The largest reported asset categories were equity (common) (57.9%), debt (22.4%), and mortgage-backed securities (ABS-MBS) (13.9%).
The single largest asset category, equity (common), accounted for 57.9% of reported market value across 97 positions.
Auto-generated from this fund's SEC Form N-PORT filing data. Figures are point-in-time as reported.
Entity Statements
Recent SEC Filing Activity
DealCharts currently indexes the latest NPORT-P holdings filing for this fund and links to official SEC EDGAR results for related shareholder and prospectus filings.- Form
- NPORT-P
- Filing date
- February 24, 2026
- Report period
- December 31, 2025
- SEC CIK
- 918571
External Analysis
Datasets & API#
Access the raw data behind this fund page through multiple channels: REST API or direct downloads.{
"fund_name": "MFS Total Return Series",
"fund_lei": "DUD8UW8LVR61WPR1K944",
"total_holdings": 1023,
"total_value": 2305453245.59,
"asset_types": [],
"filing_date": "2026-02-24"
}