IUTIX Performance — Columbia U.S. Treasury Index Fund, Institutional Class
Data updated: 2026-09-28
IUTIX returned −0.87% year to date and +1.77% over one year to Jul 2026. Annualised returns are +2.75% over 3 years and −1.04% over 5 years. The fund trailed its Intermediate Government Bond category average: $100 invested three years ago grew to $108, against $111 for the category, and to $102 over one year, against $103. Volatility over the past three years was 5.02% a year. In the 12 months to Jul 2026 the fund lost a net $243.0M, and assets reached $613.98M.
IUTIX Growth of $100
What $100 invested in Columbia U.S. Treasury Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the Intermediate Government Bond category average over the same months.
| Period | IUTIX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $102 | $103 |
| 3 years (Aug 2023 – Jul 2026) | $108 | $111 |
| 5 years (Aug 2021 – Jul 2026) | $95 | $101 |
| Since data start (Aug 2019 – Jul 2026) | $103 | $112 |
IUTIX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −0.87% |
| 1 year | +1.77% |
| 3 years (annualised) | +2.75% |
| 5 years (annualised) | −1.04% |
IUTIX Annual Returns
Calendar-year total returns of Columbia U.S. Treasury Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | −0.87% |
| 2025 | +6.00% |
| 2024 | +0.54% |
| 2023 | +4.06% |
| 2022 | −12.65% |
| 2021 | −2.50% |
| 2020 | +7.70% |
| 2019 (Aug–Dec) | +1.63% |
IUTIX 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 | 0.0% | +1.8% | −1.8% | −0.1% | +0.1% | +0.3% | −1.2% | — | — | — | — | — |
| 2025 | +0.5% | +2.1% | +0.2% | +0.6% | −1.0% | +1.2% | −0.4% | +1.0% | +0.8% | +0.6% | +0.6% | −0.4% |
| 2024 | −0.2% | −1.4% | +0.6% | −2.3% | +1.4% | +1.0% | +2.2% | +1.2% | +1.3% | −2.5% | +0.8% | −1.5% |
| 2023 | +2.7% | −2.4% | +2.9% | +0.5% | −1.2% | −0.8% | −0.4% | −0.5% | −2.3% | −1.2% | +3.4% | +3.3% |
| 2022 | −1.8% | −0.7% | −3.1% | −3.1% | +0.2% | −0.9% | +1.6% | −2.5% | −3.4% | −1.5% | +2.6% | −0.7% |
| 2021 | −1.0% | −1.8% | −1.5% | +0.7% | +0.3% | +0.7% | +1.3% | −0.2% | −1.1% | −0.1% | +0.8% | −0.7% |
| 2020 | +2.4% | +2.6% | +2.8% | +0.6% | −0.3% | +0.1% | +1.1% | −1.1% | +0.1% | −0.9% | +0.4% | −0.3% |
| 2019 | — | — | — | — | — | — | — | +3.4% | −0.9% | +0.1% | −0.4% | −0.5% |
IUTIX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 5.02%
- 3-year Sharpe ratio: -0.35 (vs 4.5% risk-free rate)
- Best month: +3.43% (Nov 2023)
- Worst month: −2.46% (Oct 2024)
IUTIX Fund Flows
Monthly money in and out of Columbia U.S. Treasury Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$243.0M
- 12-month gross sales (incl. reinvestments): $215.3M
- Sales ÷ redemptions: 0.47×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $15.7M | $7.4M | $8.3M |
| Jun 2026 | $5.9M | $15.7M | −$9.8M |
| May 2026 | $5.5M | $80.8M | −$75.3M |
| Apr 2026 | $53.1M | $130.9M | −$77.7M |
| Mar 2026 | $12.4M | $40.8M | −$28.3M |
| Feb 2026 | $6.2M | $14.0M | −$7.8M |
| Jan 2026 | $21.9M | $9.7M | $12.1M |
| Dec 2025 | $12.4M | $23.2M | −$10.8M |
| Nov 2025 | $10.3M | $11.7M | −$1.3M |
| Oct 2025 | $20.5M | $5.1M | $15.4M |
| Sep 2025 | $43.6M | $17.1M | $26.5M |
| Aug 2025 | $7.8M | $102.1M | −$94.3M |
IUTIX Assets Under Management
Net assets of Columbia U.S. Treasury Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $613.98M |
| 2026-04-30 | $701.45M |
| 2026-01-31 | $822.54M |
| 2025-10-31 | $828.81M |
| 2025-07-31 | $868.48M |
| 2025-04-30 | $816.01M |
| 2025-01-31 | $850.65M |
| 2024-10-31 | $862.49M |
| 2024-07-31 | $869.10M |
| 2024-04-30 | $1.10B |
| 2024-01-31 | $1.24B |
| 2023-10-31 | $1.00B |
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.