COSIX
Columbia Strategic Income Fund
COLUMBIA FUNDS SERIES TRUST I
Expense ratio1
0.94%
Net assets2
$6.05B
Holdings2
1280
Category
Other
2025 return3
6.98%

Investment objective & strategy

As of Dec. 22, 2025 · prospectus

Objective. Columbia Strategic Income Fund (the Fund) seeks total return, consisting of current income and capital appreciation.

Strategy. Under normal circumstances, the Fund has substantial exposure to fixed-income/debt markets. The Fund has the flexibility to invest in any sector of the fixed-income/debt market and across the credit quality spectrum. The Fund may invest in U.S. Government bonds and notes (including those of its agencies and instrumentalities, and of government-sponsored enterprises), U.S. and international (including developed, developing and emerging markets) bonds and notes, investment grade corporate (or similar) bonds and notes, mortgage- and other asset-backed securities, high yield (i.e., junk) instruments, floating rate loans and other floating rate debt securities, inflation-protected/linked securities, convertible securities, cash/cash equivalents, as well as foreign government, sovereign and quasi-sovereign debt investments. The Funds investments may include non-U.S. dollar denominated instruments. The Fund may also … Under normal circumstances, the Fund has substantial exposure to fixed-income/debt markets. The Fund has the flexibility to invest in any sector of the fixed-income/debt market and across the credit quality spectrum. The Fund may invest in U.S. Government bonds and notes (including those of its agencies and instrumentalities, and of government-sponsored enterprises), U.S. and international (including developed, developing and emerging markets) bonds and notes, investment grade corporate (or similar) bonds and notes, mortgage- and other asset-backed securities, high yield (i.e., junk) instruments, floating rate loans and other floating rate debt securities, inflation-protected/linked securities, convertible securities, cash/cash equivalents, as well as foreign government, sovereign and quasi-sovereign debt investments. The Funds investments may include non-U.S. dollar denominated instruments. The Fund may also invest in preferred securities. The Fund does not seek to maintain a particular dollar-weighted average maturity or duration target. The Fund may invest in derivatives, such as forward contracts (including forward foreign currency contracts for investment and hedging purposes), futures (including bond futures for managing yield curve and duration risk, and index and interest rate futures for hedging and managing interest exposure), options (including options on listed futures for hedging purposes), options on swaps (commonly known as swaptions) for hedging purposes, and swaps (including credit default swaps, credit default swap indexes, inflation rate and interest rate swaps for hedging and investment purposes, and total return swaps for managing market exposure). The Funds use of derivatives creates leverage (market exposure in excess of the Funds assets) in the Funds portfolio. The Fund may invest in interest-only (IO) and principal-only (PO) bonds (commonly known as stripped securities) for investment purposes. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis. Such securities may include mortgage-backed securities acquired or sold in the to be announced (TBA) market and those in a dollar roll transaction. The Fund may invest in privately placed and other securities or instruments that are purchased and sold pursuant to Rule 144A or other exemptions under the Securities Act of 1933, as amended, subject to certain regulatory restrictions. The Funds investment strategy may involve the frequent trading of portfolio securities.

Top holdings

As of Feb. 28, 2026 · N-PORT
SecurityTickerValue% of fund
COLUMBIA SHORT TERM CASH FUND $369.40M 6.10%
FNCL 5 3/24 $203.91M 3.37%
FNCL 5.5 3/25 $178.92M 2.96%
Uniform Mortgage-Backed Security, TBA $169.58M 2.80%
FNCL 6 3/24 $155.90M 2.58%
Uniform Mortgage-Backed Security, TBA $99.87M 1.65%
FEDERAL NATIONAL MORTGAGE ASSOCIATION $66.96M 1.11%
Uniform Mortgage-Backed Security, TBA FNMA $65.10M 1.08%
COLUMBIA ETF TRUST I COLUMBIA SHORT DURATION HIGH YIELD ETF $58.39M 0.96%
FEDERAL NATIONAL MORTGAGE ASSOCIATION $53.30M 0.88%
View all holdings →

Allocation by sector

As of February 28, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Nov 30, 2025 → Feb 28, 2026
Opened
148
Exited
154
Increased
79
Decreased
417
Unchanged
636

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

View portfolio moves →

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Footnotes

  1. Expense ratio as of December 22, 2025, from the fund's prospectus.
  2. Net assets and holdings count as of February 28, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

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