Registry rank 1763 · Portfolio as of 2026-02-28

Columbia Dividend Opportunity Fund

ACUIX · CDOAX · CDOYX · CDOZX · INUTX · RSDFX · RSOOX

Best-fit active share70.0%vs IWD · fund as of 2026-02-28 · proxy as of 2026-03-31
Declared-benchmark active share70.0%Russell 1000® Value Index · benchmark match · fund as of 2026-02-28 · proxy as of 2026-03-31 · declared source as of 2025-05-31
ACUIX expense ratio1.78%SEC expense filing · as of 2025-05-31
ACUIX fee per active unit2.54%expense as of 2025-05-31; fund as of 2026-02-28; proxy as of 2026-03-31

Filed fees in dollars

SEC-convention illustration

Computed from SEC filings

Assumptions for each dollar figure: $100,000 starting amount · 5.0% annual return · annual compounding · fees deducted annually · 0.01% computed index-control baseline. Methodology.

Illustrated difference between each class’s filed expense ratio and the computed index-control baseline. Computed from SEC filings.
Share class and filing10 years20 years30 years
ACUIX1.78% · SEC expense filing · as of 2025-05-31$25,445$76,340$172,190
CDOAX0.78% · SEC expense filing · as of 2025-05-31$11,549$36,254$85,394
CDOYX0.70% · SEC expense filing · as of 2025-05-31$10,384$32,719$77,347
CDOZX0.78% · SEC expense filing · as of 2025-05-31$11,549$36,254$85,394
INUTX1.03% · SEC expense filing · as of 2025-05-31$15,136$46,973$109,416
RSDFX0.74% · SEC expense filing · as of 2025-05-31$10,967$34,493$81,393
RSOOX1.28% · SEC expense filing · as of 2025-05-31$18,647$57,214$131,821

Real trailing windows

Computed on licensed market-return history

Trailing windows use IWD adjusted-close total-return history through 2026-07-29 and the same filed index-control fee baseline as the convention table. Methodology.

Dollar fee drag over actual trailing proxy-return windows. Each result below is computed on licensed market-return history.
Share class and filing10 years20 years30 years
ACUIXFiled fee as of 2025-05-31$43,558Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$147,458Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window
CDOAXFiled fee as of 2025-05-31$19,722Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$69,825Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window
CDOYXFiled fee as of 2025-05-31$17,730Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$63,002Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window
CDOZXFiled fee as of 2025-05-31$19,722Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$69,825Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window
INUTXFiled fee as of 2025-05-31$25,865Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$90,538Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window
RSDFXFiled fee as of 2025-05-31$18,728Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$66,426Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window
RSOOXFiled fee as of 2025-05-31$31,883Computed on licensed market-return history
2016-07-29 to 2026-07-29 · proxy return 11.41% annualized
$110,357Computed on licensed market-return history
2006-07-31 to 2026-07-29 · proxy return 8.68% annualized
Proxy history begins 2000 — no full 30-year window

These figures are illustrations, not predictions or personalized advice. Returns and fees can differ. Read the research disclaimer.

Change the illustration

Return mode

Computed from SEC filings

Assumptions for the dollar figures below: $100,000 starting amount; 5.0% annual return; 20 years; annual compounding; fees deducted annually; 0.01% computed index-control baseline. ACUIX SEC expense filing, as of 2025-05-31. Methodology.

SEC-convention illustration for ACUIX; expense ratio filed as of 2025-05-31.
ResultAmount
Ending value at baseline$264,825
Ending value at filed expense ratio$188,485
Difference attributed to fee drag$76,340

This is an illustration, not a prediction or personalized advice. Returns and fees can differ. Read the research disclaimer.

Largest active differences vs IWD

The bars are labeled and repeated in the table; color is not the only signal. Linked company names open Buy Like Buffett’s company record; Sensible Investor does not score stocks.

BERKSHIRE HATHAWAY INC.-2.92%
THE GOLDMAN SACHS GROUP, INC.+1.85%
HoldingFundIWDDifference
ALPHABET INC.0.00%3.55%-3.55%
BERKSHIRE HATHAWAY INC.0.00%2.92%-2.92%
AbbVie Inc2.34%0.00%+2.34%
THE GOLDMAN SACHS GROUP, INC.2.62%0.78%+1.85%
AMAZON.COM, INC.0.00%1.81%-1.81%
Philip Morris International Inc.2.56%0.85%+1.71%
CISCO SYSTEMS, INC.2.72%1.02%+1.70%
WALMART INC.0.00%1.61%-1.61%
EXXON MOBIL CORPORATION3.93%2.36%+1.56%
LOCKHEED MARTIN CORPORATION1.75%0.30%+1.46%

Source and verification

SEC N-PORT filing · filed 2026-04-27 · period 2026-02-28

SEC expense filing · period 2025-05-31

Immutable verification record · Active-share method

Cite these figures

Each snippet includes the figure’s source-event date and immutable verification URL.

Best-fit active share

Sensible Investor, “Columbia Dividend Opportunity Fund — best-fit active share,” 70.0% versus IWD, fund portfolio as of 2026-02-28. https://sensible-investor.com/registry/acuix/as-of/363649da-fcfb-4007-87ef-de06de7710ca

ACUIX filed expense ratio

Sensible Investor, “Columbia Dividend Opportunity Fund — filed expense ratio,” 1.78% for ACUIX, as of 2025-05-31. https://sensible-investor.com/registry/acuix/as-of/363649da-fcfb-4007-87ef-de06de7710ca

ACUIX fee per active unit

Sensible Investor, “Columbia Dividend Opportunity Fund — fee per unit of active management,” 2.54% using the ACUIX expense ratio as of 2025-05-31 and fund portfolio as of 2026-02-28. https://sensible-investor.com/registry/acuix/as-of/363649da-fcfb-4007-87ef-de06de7710ca