Fund Evaluator:
SEI Tax-Managed Large Cap Y (SIMT) (STLYX)Best Performing in Large Blend Over the Last Year
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Fund Details
SEI Tax-Managed Large Cap Y (SIMT) Overview
SEI Tax-Managed Large Cap Y (SIMT) (STLYX) is an actively managed U.S. Equity Large Blend fund. SEI launched the fund in 2014.
The investment seeks high long-term after-tax returns. Under normal circumstances, the fund will invest at least 80% of its net assets (plus the amount of any borrowings for investment purposes) in equity securities of large companies. For purposes of this fund, a large company is a company with a market capitalization in the range of companies in the Russell 1000 Index at the time of purchase. It may invest up to 20% of its assets in foreign securities.
About SEI Tax-Managed Large Cap Y (SIMT) (STLYX)
There are 22 members of the management team with an average tenure of 9.92 years: James Clarke (2015), Puneet Mansharamani (2006), Patrick Kaser (2015), Andrew Chan (2016), Nadim Rizk (2016), David Hintz (2017), Jennifer Chang (2017), Paul Bouchey (2014), Greg Sleight (2014), Guy Lakonishok (2014), Eugene Barbaneagra (2016), Jennifer Mihara (2024), James Cullen (2017), Jason Collins (2016), Celia Hoopes (2020), Ryan McKeon (2024), Gal Skarishevsky (2025), Rob Osborne (2025), Josef Lakonishok (2001), Brian Massey (2018), Silas Myers (2018), Menno Vermeulen (2001). Management tenure is more important for actively managed funds than passive index funds.
The fund has 2 primary benchmarks: S&P 500 (TR) (1970) index with a weighting of 100% and Russell 1000 TR USD index with a weighting of 100%. SEI Tax-Managed Large Cap Y (SIMT) has 324 securities in its portfolio. The top 10 holdings constitute 25.9% 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 Tax-Managed Large Cap Y (SIMT) is part of the Equity global asset class and is within the U.S. Equity fund group. SEI Tax-Managed Large Cap Y (SIMT) has 2.9% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 96.0%. There is 2.9% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). SEI Tax-Managed Large Cap Y (SIMT) has 1.0% of the portfolio in cash.
Assets Under Management
The fund has $687 million in total assets, which is below the $6 billion average for the Large Blend 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.
STLYX 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 Tax-Managed Large Cap Y (SIMT) expense ratio is above average compared to funds in the Large Blend category. SEI Tax-Managed Large Cap Y (SIMT) has an expense ratio of 0.64%, which is 21% 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 Tax-Managed Large Cap Y (SIMT) has a portfolio turnover rate of 14%, indicating that holds its assets around 0.1 years. By way of comparison, the average portfolio turnover is 48% for the Large Blend category.
Recently, in the month of July 2026, SEI Tax-Managed Large Cap Y (SIMT) returned 1.8%, which earned it a grade of A, as the Large Blend category had an average return of 0.4%. 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 Tax-Managed Large Cap Y (SIMT) has a trailing yield of 0.76%, which is above the 0.56% category average. The fund normally distributes its income quarterly and its capital gains annually.
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 Tax-Managed Large Cap Y (SIMT) Grades
Year to date, the fund has returned 10.0%, 0.7 percentage points better than the category, which translates into a grade of B. The fund has returned 19.0% over the past year (grade of C), 15.4% over the past three years (grade of D) and 10.3% per year over the past five years (grade of D) and 13.0% per year over the past 10 years (grade of D).
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STLYX 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 |
|
| STLYX Return (NAV) | 1.8% | 4.3% | 19.0% | 15.4% | 10.3% | 13.0% |
| STLYX Grade | A | B | C | D | D | D |
| +/- Category | 1.4% | 0.2% | 1.5% | -1.9% | -0.8% | -0.7% |
| Large Blend Avg | 0.4% | 4.1% | 17.5% | 17.3% | 11.1% | 13.7% |
| STLYX Tax Cost Ratio | na | na | 0.6% | 1.4% | 1.5% | 1.2% |
STLYX Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| STLYX Return (NAV) | 10.0% | 17.2% | 14.8% | 17.7% | -13.0% | 28.7% | 12.4% | 28.6% | -6.0% | 21.5% | 8.3% |
| STLYX Grade | B | B | F | F | A | B | F | D | C | C | D |
| +/- Category | 0.7% | 1.4% | -7.2% | -6.0% | 4.3% | 2.2% | -5.1% | -1.2% | -0.2% | 0.2% | -1.9% |
| Large Blend Avg | 9.3% | 15.8% | 22.1% | 23.7% | -17.3% | 26.5% | 17.5% | 29.8% | -5.9% | 21.3% | 10.2% |
| Risk Measures | |
| Standard Deviation: | 12.0% |
| Total Risk Index: | 0.98 - Average |
| Category Risk Index: | 0.90 - Low |
| Category Risk Grade: | A (12% Rank) |
| Beta: | 0.87 |
| R-Squared: | 91% |
| Leveraged Fund: | No |
| Inverse Fund: | No |
| Portfolio Characteristics | |
| Equity Investment Style: | Large-Cap Value |
| Bond Investment Style: | na |
| Yield: | 0.8% |
| Dividend Distribution: | Quarterly |
| Cap Gains Distribution: | Annually |
| Total Assets: | $4589 Mil |
| Fund Total Assets: | $ 688 Mil |
| Share Class Type: | Inst |
| Portfolio Turnover: | 14% |
Management Team
| Number of Managers: 22 | |||
| Longest Tenure: 24.6 years | |||
| Average Tenure: 9.9 years | |||
| Managers (Year): Lakonishok Josef (2001), Vermeulen Menno (2001), Mansharamani Puneet (2006), Bouchey Paul (2014), Sleight Greg (2014), Lakonishok Guy (2014), Kaser Patrick (2015), Clarke James (2015), Chan Andrew (2016), Rizk Nadim (2016), Barbaneagra Eugene (2016), Collins Jason (2016), Chang Jennifer (2017), Cullen James (2017), Hintz David (2017), Massey Brian (2018), Myers Silas (2018), Hoopes Celia (2020), McKeon Ryan (2024), Mihara Jennifer (2024), Skarishevsky Gal (2025), Osborne Rob (2025) | |||
Portfolio Composition (as of 6/30/26)
| # of Holdings: | 324 |
| % in Top 10 Holdings: | 25.9% |
| Fund is Non-Diversified: | No |
| % in Foreign Issues: | 2.9% |
Portfolio Allocation |
|
| Domestic Stock: | 96.0% |
| Foreign Stock: | 2.9% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 1.0% |
Purchase Information
| Fund Family: | SEI |
| Phone Number: | 800-858-7233 |
| Website: | www.seic.com |
| Status: | Open |
| Inception Date: | December 31, 2014 |
| Min. Initial Purchase: | $100,000 |
| 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 (%): | 0.64% ( Rating : Above Avg ) |
| Category Average Expense Ratio (%): | 0.81% |
| Share Class: | SEI Tax-Managed Large Cap F (SIMT) |
| Min. Subsequent Purchase: | $1,000 |
| Min. Subsequent IRA Purchase: | $ 0 |