MBSAX — Multisector Bond SMA Completion Portfolio
Data updated: 2026-07-29
MBSAX — Multisector Bond SMA Completion Portfolio data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. Long Securitized (MBS/ABS/CMBS) Bond · $109.92M AUM · 0.00% expense ratio · 10.1% 1-yr return. From SEC regulatory filings.
MBSAX Fund Overview
MBSAX — Multisector Bond SMA Completion Portfolio is a US mutual fund managed by Columbia Funds Series Trust I, categorised as Long Securitized (MBS/ABS/CMBS) Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Columbia Funds Series Trust I
- Category: Long Securitized (MBS/ABS/CMBS) Bond
- Assets under management: $109.92M
- 1-year return: 10.1%
- Ticker: MBSAX
- SEC CIK: 0000773757
- SEC series ID: S000066845
- Share class ID: C000215205
MBSAX Holdings
Top 10 holdings of Multisector Bond SMA Completion Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Columbia Short Term Cash Fund | 24.38% |
| Umbs, Tba | 9.04% |
| Umbs, Tba | 8.78% |
| Umbs, Tba | 7.84% |
| Umbs, Tba | 6.46% |
| Umbs, Tba | 5.02% |
| Umbs, Tba | 4.53% |
| Intercontinental Exchange, Inc. | 3.40% |
| Cayuga Park CLO, Ltd. | 1.82% |
| Carlyle Global Market Strategies | 1.82% |
MBSAX Portfolio Allocation
Asset-class allocation of Multisector Bond SMA Completion Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Securitized | 67.1% |
| Cash & Equivalents | 24.4% |
| Loans | 22.2% |
| Fixed Income | 21.6% |
| Derivatives | 3.4% |
MBSAX Performance
Total returns for MBSAX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 2.6% |
| 1 year | 10.1% |
| 3 years (annualised) | 10.6% |
| 5 years (annualised) | 6.7% |
MBSAX Risk Information
Risk metrics for MBSAX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 4.9%
MBSAX Costs and Fees
MBSAX costs about $0 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.00%
- Gross expense ratio: 0.54%
- Portfolio turnover: 656%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
MBSAX Cashflows
Over the 12 months to 2026-02, Multisector Bond SMA Completion Portfolio had net inflows of $80.51M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-02 | $3.59M |
| 2026-01 | $4.58M |
| 2025-12 | $9.09M |
| 2025-11 | $5.50M |
| 2025-10 | $8.41M |
| 2025-09 | $6.70M |
MBSAX Debt Constituents
Largest debt holdings of Multisector Bond SMA Completion Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| Turkiye Government International Bonds | 1.49% |
| United States Treasury | 1.36% |
| Romania | 1.19% |
| Egypt Government International Bonds | 0.84% |
| Petroleos Mexicanos | 0.78% |
| United States Treasury | 0.77% |
| Nota Do Tesouro Nacional | 0.77% |
| Colombia Government International Bonds | 0.76% |
| Ivory Coast | 0.75% |
| Saudi Arabian Oil Co. | 0.65% |
MBSAX Prospectus and SEC Filings
Official Multisector Bond SMA Completion Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other Long Securitized (MBS/ABS/CMBS) Bond funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.