Fund Evaluator:
SEI Short-Duration Government F (SDIT) (TCSGX)Best Performing in Government Mortgage-Backed Bond Over the Last Year
| 4.4% | Fidelity Mortgage Securities (FMSFX) |
| 4.4% | Fidelity Advisor Mortgage Securities Z (FIKUX) |
| 4.3% | Fidelity GNMA (FGMNX) |
| 4.3% | Vanguard Mortgage-Backed Secs Idx Adm (VMBSX) |
| 4.2% | Vanguard GNMA Adm (VFIJX) |
Fund Details
SEI Short-Duration Government F (SDIT) Overview
SEI Short-Duration Government F (SDIT) (TCSGX) is an actively managed Taxable Bond Government Mortgage-Backed Bond fund. SEI launched the fund in 1987.
The investment seeks to preserve principal value and maintain a high degree of liquidity while providing current income. Normally, the fund invests substantially all of its net assets in U.S. Treasury obligations and obligations issued or guaranteed as to principal and interest by agencies or instrumentalities of the U.S. government, including mortgage-backed securities, and repurchase agreements collateralized by such obligations. It may invest in securities issued by various entities sponsored by the U.S. government, such as the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation.
About SEI Short-Duration Government F (SDIT) (TCSGX)
There are 4 members of the management team with an average tenure of 8.23 years: Richard Bamford (2014), Brian Conroy (2012), Anthony Karaminas (2022), Philip Terrenzio (2022). Management tenure is more important for actively managed funds than passive index funds.
The fund has 2 primary benchmarks: Bloomberg US Agg Bond TR USD index with a weighting of 100% and ICE BofA 1-3Y US Trsy TR USD index with a weighting of 100%. SEI Short-Duration Government F (SDIT) has 394 securities in its portfolio. The top 10 holdings constitute 64.4% of the fund’s assets. The fund meets the SEC requirement of being classified as a diversified fund. The fund is not considered to have an ESG focus with its investment selection and management.
SEI Short-Duration Government F (SDIT) is part of the Fixed Income global asset class and is within the Taxable Bond fund group. SEI Short-Duration Government F (SDIT) has 0.0% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 0.0%. There is 0.0% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 95.7% (95.7% domestic bond, 0.0% foreign bond and 0.0% convertible bond). SEI Short-Duration Government F (SDIT) has 4.3% of the portfolio in cash.
Assets Under Management
The fund has $557 million in total assets, which is above the $337 million average for the Government Mortgage-Backed Bond category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
TCSGX Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The SEI Short-Duration Government F (SDIT) expense ratio is average compared to funds in the Government Mortgage-Backed Bond category. SEI Short-Duration Government F (SDIT) has an expense ratio of 0.58%, which is 35% lower than its category average, making the fund expense ratio grade a B. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. SEI Short-Duration Government F (SDIT) has a portfolio turnover rate of 43%, indicating that holds its assets around 0.0 years. By way of comparison, the average portfolio turnover is 367% for the Government Mortgage-Backed Bond category.
Recently, in the month of July 2026, SEI Short-Duration Government F (SDIT) returned 0.1%, which earned it a grade of A, as the Government Mortgage-Backed Bond category had an average return of -1.2%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all funds in that category.
SEI Short-Duration Government F (SDIT) has a trailing yield of 3.30%, which is below the 3.87% category average. The fund normally distributes its income monthly.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
SEI Short-Duration Government F (SDIT) Grades
Year to date, the fund has returned 0.7%, 1.2 percentage points better than the category, which translates into a grade of A. The fund has returned 3.1% over the past year (grade of D), 4.6% over the past three years (grade of A) and 1.9% per year over the past five years (grade of A) and 1.7% per year over the past 10 years (grade of A).
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TCSGX Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| TCSGX Return (NAV) | 0.1% | 0.2% | 3.1% | 4.6% | 1.9% | 1.7% |
| TCSGX Grade | A | A | D | A | A | A |
| +/- Category | 1.3% | 1.1% | -0.2% | 0.8% | 1.8% | 0.7% |
| Government Mortgage-Backed Bond Avg | -1.2% | -0.9% | 3.4% | 3.8% | 0.1% | 1.0% |
| TCSGX Tax Cost Ratio | na | na | 1.3% | 1.3% | 1.0% | 0.8% |
TCSGX Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| TCSGX Return (NAV) | 0.7% | 5.2% | 4.7% | 4.1% | -4.2% | -1.1% | 3.6% | 3.2% | 0.9% | 0.5% | 1.2% |
| TCSGX Grade | A | F | A | D | A | B | D | F | A | F | D |
| +/- Category | 1.2% | -2.5% | 3.5% | -0.3% | 6.3% | 0.3% | -0.8% | -2.0% | 0.4% | -0.9% | -0.1% |
| Government Mortgage-Backed Bond Avg | -0.4% | 7.6% | 1.2% | 4.4% | -10.5% | -1.4% | 4.4% | 5.2% | 0.5% | 1.3% | 1.3% |
| Risk Measures | |
| Standard Deviation: | 1.6% |
| Total Risk Index: | 0.13 - Low |
| Category Risk Index: | 0.29 - Low |
| Category Risk Grade: | A (4% Rank) |
| Beta: | 0.25 |
| R-Squared: | 77% |
| Leveraged Fund: | No |
| Inverse Fund: | No |
| Portfolio Characteristics | |
| Equity Investment Style: | na |
| Bond Investment Style: | na |
| Yield: | 3.3% |
| Dividend Distribution: | Monthly |
| Cap Gains Distribution: | None |
| Total Assets: | $586 Mil |
| Fund Total Assets: | $ 558 Mil |
| Share Class Type: | Inst |
| Portfolio Turnover: | 43% |
Management Team
| Number of Managers: 4 | |||
| Longest Tenure: 13.6 years | |||
| Average Tenure: 8.2 years | |||
| Managers (Year): Conroy Brian (2012), Bamford Richard (2014), Karaminas Anthony (2022), Terrenzio Philip (2022) | |||
Portfolio Composition (as of 6/30/26)
| # of Holdings: | 394 |
| % in Top 10 Holdings: | 64.4% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 0.0% |
Portfolio Allocation |
|
| Domestic Stock: | 0.0% |
| Foreign Stock: | 0.0% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 95.7% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 4.3% |
Purchase Information
| Fund Family: | SEI |
| Phone Number: | 800-342-5734 |
| Website: | www.seic.com |
| Status: | Open |
| Inception Date: | February 17, 1987 |
| Min. Initial Purchase: | $ 0 |
| Min. Initial IRA Purchase: | $ 0 |
| True No-Load: | Yes |
| Front Load Maximum: | 0.00% |
| Deferred Charge Maximum: | 0.00% |
| Redemption Charge Maximum: | 0.00% |
| 12b-1 Fee: | na |
Expenses and Fees | |
| Expense Ratio (%): | 0.58% ( Rating : Avg ) |
| Category Average Expense Ratio (%): | 0.89% |
| Share Class: | SEI Short-Duration Government F (SDIT) |
| Min. Subsequent Purchase: | $ 0 |
| Min. Subsequent IRA Purchase: | $ 0 |