STMSX — SIMT Tax-Managed Small/Mid Cap Fund
Data updated: 2026-08-28
STMSX — SIMT Tax-Managed Small/Mid Cap Fund. United States Multi-Cap / All-Cap Blend / Core Equity. Holdings, fees, performance and SEC filings.
STMSX Fund Overview
STMSX — SIMT Tax-Managed Small/Mid Cap Fund is a US mutual fund managed by Sei Institutional Managed Trust, categorised as United States Multi-Cap / All-Cap Blend / Core Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Sei Institutional Managed Trust
- Category: United States Multi-Cap / All-Cap Blend / Core Equity
- Assets under management: $768.85M
- 1-year return: 28.2%
- Ticker: STMSX
- SEC CIK: 0000804239
- SEC series ID: S000006677
- Share class ID: C000018202
STMSX Holdings
Top 10 holdings of SIMT Tax-Managed Small/Mid Cap Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Keysight Technologies, Inc. | 1.18% |
| Sanmina Corporation | 1.11% |
| Jackson Financial Inc. | 1.05% |
| Commercial Metals Company | 1.02% |
| Rbc Bearings Incorporated | 1.00% |
| Ttm Technologies, Inc. | 0.99% |
| Old National Bancorp | 0.95% |
| Astec Industries, Inc. | 0.90% |
| Zions Bancorporation, National Association | 0.88% |
| Centene Corporation | 0.88% |
STMSX Portfolio Allocation
Asset-class allocation of SIMT Tax-Managed Small/Mid Cap Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.1% |
| Cash & Equivalents | 0.8% |
| Derivatives | 0.6% |
STMSX Performance
Total returns for STMSX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 17.5% |
| 1 year | 28.2% |
| 3 years (annualised) | 15.7% |
| 5 years (annualised) | 7.5% |
STMSX Risk Information
Risk metrics for STMSX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 14.7%
STMSX Costs and Fees
STMSX costs about $124 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.24%
- Gross expense ratio: 1.24%
- Portfolio turnover: 36%
- Brokerage commissions: 3.02 bps of average net assets (SEC N-CEN)
STMSX Cashflows
Over the 12 months to 2026-06, SIMT Tax-Managed Small/Mid Cap Fund had net inflows of $27.29M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$11.85M |
| 2026-05 | −$3.93M |
| 2026-04 | −$4.52M |
| 2026-03 | −$4.78M |
| 2026-02 | −$4.66M |
| 2026-01 | $65.08M |
STMSX Debt Constituents
No individual debt constituents are reported in SIMT Tax-Managed Small/Mid Cap Fund's latest SEC N-PORT filing.
STMSX Prospectus and SEC Filings
Official SIMT Tax-Managed Small/Mid Cap Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-01-28
- Prospectus (485BPOS) — filed 2025-01-28
- Prospectus (485BPOS) — filed 2024-01-29
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-29
- Portfolio holdings (N-PORT) — filed 2026-03-02
- Annual census (N-CEN) — filed 2024-12-16
- Annual census (N-CEN) — filed 2023-12-14
Related Funds
Other United States Multi-Cap / All-Cap Blend / Core Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.