SPMIX — S&P MidCap Index Fund
Data updated: 2026-07-30
SPMIX — S&P MidCap Index Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Mid Cap Blend / Core Equity · $115.69M AUM · 0.64% expense ratio · 25.0% 1-yr return. From SEC regulatory filings.
SPMIX Fund Overview
SPMIX — S&P MidCap Index Fund is a US mutual fund managed by Shelton Funds, categorised as United States Mid 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: Shelton Funds
- Category: United States Mid Cap Blend / Core Equity
- Assets under management: $115.69M
- 1-year return: 25.0%
- Ticker: SPMIX
- SEC CIK: 0000778206
- SEC series ID: S000016023
- Share class ID: C000044031
SPMIX Holdings
Top 10 holdings of S&P MidCap Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Flex Ltd. | 1.57% |
| United States Of America - Bureau Of The Public Debt | 0.95% |
| Twilio, Inc. | 0.81% |
| Technipfmc PLC | 0.77% |
| Curtiss-Wright Corp. | 0.77% |
| Nvent Electric PLC | 0.75% |
| Sterling Infrastructure, Inc. | 0.74% |
| Illumina, Inc. | 0.71% |
| Xpo, Inc. | 0.70% |
| Everpure, Inc. | 0.69% |
SPMIX Portfolio Allocation
Asset-class allocation of S&P MidCap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.0% |
| Fixed Income | 0.9% |
| Derivatives | 0.6% |
SPMIX Performance
Total returns for SPMIX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 12.8% |
| 1 year | 25.0% |
| 3 years (annualised) | 16.6% |
| 5 years (annualised) | 7.4% |
SPMIX Risk Information
Risk metrics for SPMIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.1%
SPMIX Costs and Fees
SPMIX costs about $64 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.64%
- Gross expense ratio: 0.64%
- Portfolio turnover: 12%
- Brokerage commissions: 1.75 bps of average net assets (SEC N-CEN)
SPMIX Cashflows
Over the 12 months to 2026-02, S&P MidCap Index Fund had net outflows of $3.88M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-02 | −$1.10M |
| 2026-01 | −$138.68K |
| 2025-12 | −$520.29K |
| 2025-11 | $0 |
| 2025-10 | $0 |
| 2025-09 | −$491.60K |
SPMIX Debt Constituents
Largest debt holdings of S&P MidCap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Of America - Bureau Of The Public Debt | 0.95% |
SPMIX Prospectus and SEC Filings
Official S&P MidCap Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Mid 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.