COSBX Performance — Columbia Overseas Value Fund, Class S
Data updated: 2026-07-29
COSBX returned +7.48% year to date and +28.52% over one year to May 2026. Over one year the fund beat its International Large Value category average: $100 grew to $129, against $127 for the category. Volatility over the past 12 months was 14.25% a year. In the 12 months to May 2026 the fund took in a net $1.8B, and assets reached $6.80B.
COSBX Growth of $100
What $100 invested in Columbia Overseas Value Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the International Large Value category average over the same months.
| Period | COSBX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $129 | $127 |
| Since data start (Oct 2024 – May 2026) | $148 | $139 |
COSBX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +7.48% |
| 1 year | +28.52% |
COSBX Annual Returns
Calendar-year total returns of Columbia Overseas Value Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +7.48% |
| 2025 | +45.74% |
| 2024 (Oct–Dec) | −5.72% |
COSBX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +6.8% | +5.4% | −8.1% | +3.7% | +0.2% | — | — | — | — | — | — | — |
| 2025 | +4.9% | +3.3% | +4.5% | +3.0% | +4.6% | +4.1% | −0.3% | +6.5% | +2.3% | −1.2% | +3.9% | +2.9% |
| 2024 | — | — | — | — | — | — | — | — | — | −3.9% | +1.4% | −3.2% |
COSBX Risk
Risk measures from monthly returns over Jun 2025 – May 2026.
- 1-year volatility (annualised): 14.25%
- Best month: +6.76% (Jan 2026)
- Worst month: −8.07% (Mar 2026)
COSBX Fund Flows
Monthly money in and out of Columbia Overseas Value Fund, from SEC Form N-PORT.
- 12-month net flow: $1.8B
- 12-month gross sales (incl. reinvestments): $3.1B
- Sales ÷ redemptions: 2.37×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $123.6M | $116.2M | $7.5M |
| Apr 2026 | $294.7M | $113.0M | $181.7M |
| Mar 2026 | $158.1M | $110.1M | $48.0M |
| Feb 2026 | $197.1M | $109.2M | $87.9M |
| Jan 2026 | $235.3M | $94.6M | $140.7M |
| Dec 2025 | $558.4M | $170.1M | $388.2M |
| Nov 2025 | $128.5M | $93.9M | $34.6M |
| Oct 2025 | $119.0M | $82.3M | $36.6M |
| Sep 2025 | $121.8M | $84.0M | $37.9M |
| Aug 2025 | $873.7M | $170.5M | $703.2M |
| Jul 2025 | $99.2M | $90.1M | $9.1M |
| Jun 2025 | $177.1M | $65.9M | $111.2M |
COSBX Assets Under Management
Net assets of Columbia Overseas Value Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $6.80B |
| 2026-02-28 | $6.86B |
| 2025-11-30 | $5.76B |
| 2025-08-31 | $5.37B |
| 2025-05-31 | $4.11B |
| 2025-02-28 | $3.22B |
| 2024-11-30 | $3.16B |
| 2024-08-31 | $3.24B |
| 2024-05-31 | $3.16B |
| 2024-02-29 | $2.90B |
| 2023-11-30 | $2.79B |
| 2023-08-31 | $2.89B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.