MXMDX — Great-West S&P Mid Cap 400 Index Fund
Data updated: 2026-08-20
MXMDX — Great-West S&P Mid Cap 400 Index Fund. United States Mid Cap Blend / Core Equity · $1.68B AUM. Holdings, fees, performance and SEC filings.
MXMDX Fund Overview
MXMDX — Great-West S&P Mid Cap 400 Index Fund is a US mutual fund managed by Empower Funds, Inc., 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: Empower Funds, Inc.
- Category: United States Mid Cap Blend / Core Equity
- Assets under management: $1.68B
- 1-year return: 25.2%
- Ticker: MXMDX
- SEC CIK: 0000356476
- SEC series ID: S000030872
- Share class ID: C000095752
MXMDX Holdings
Top 10 holdings of Great-West S&P Mid Cap 400 Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Dreyfus Institutional Preferred Money Market Funds | 1.58% |
| Twilio, Inc. | 0.86% |
| Carpenter Technology Corp. | 0.84% |
| Mks, Inc. | 0.82% |
| Curtiss-Wright Corp. | 0.77% |
| Nvent Electric PLC | 0.75% |
| Entegris, Inc. | 0.75% |
| Ati, Inc. | 0.73% |
| Illumina, Inc. | 0.73% |
| Technipfmc PLC | 0.72% |
MXMDX Portfolio Allocation
Asset-class allocation of Great-West S&P Mid Cap 400 Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.2% |
| Cash & Equivalents | 1.6% |
| Fixed Income | 0.6% |
MXMDX Performance
Total returns for MXMDX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 17.0% |
| 1 year | 25.2% |
| 3 years (annualised) | 14.8% |
| 5 years (annualised) | 8.8% |
MXMDX Risk Information
Risk metrics for MXMDX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.2%
MXMDX Costs and Fees
MXMDX costs about $54 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.54%
- Gross expense ratio: 0.54%
- Portfolio turnover: 18%
- Brokerage commissions: 0.10 bps of average net assets (SEC N-CEN)
MXMDX Cashflows
Over the 12 months to 2026-06, Great-West S&P Mid Cap 400 Index Fund had net outflows of $1.88B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$60.27M |
| 2026-05 | −$45.69M |
| 2026-04 | −$34.73M |
| 2026-03 | −$28.87M |
| 2026-02 | −$20.77M |
| 2026-01 | −$13.41M |
MXMDX Debt Constituents
Largest debt holdings of Great-West S&P Mid Cap 400 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 | 0.63% |
MXMDX Prospectus and SEC Filings
Official Great-West S&P Mid Cap 400 Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-30
- Prospectus (485BPOS) — filed 2025-04-25
- Prospectus (485BPOS) — filed 2024-04-25
- Portfolio holdings (N-PORT) — filed 2026-08-20
- Portfolio holdings (N-PORT) — filed 2026-05-20
- Portfolio holdings (N-PORT) — filed 2026-02-13
- Annual census (N-CEN) — filed 2026-03-13
- Annual census (N-CEN) — filed 2025-03-14
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.