NOMIX — Mid Cap Index Fund
Data updated: 2026-08-28
NOMIX — Mid Cap Index Fund. United States Mid Cap Blend / Core Equity · $2.39B AUM · 0.10% expense ratio. Holdings, fees, performance and SEC filings.
NOMIX Fund Overview
NOMIX — Mid Cap Index Fund is a US mutual fund managed by Northern 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: Northern Funds
- Category: United States Mid Cap Blend / Core Equity
- Assets under management: $2.39B
- 1-year return: 25.8%
- Ticker: NOMIX
- SEC CIK: 0000916620
- SEC series ID: S000001273
- Share class ID: C000003419
NOMIX Holdings
Top 10 holdings of Mid Cap Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Northern Institutional Liquid Asset Portfolio | 2.54% |
| International Monetary Market | 1.27% |
| Ni US Gov T Portfolio | 1.15% |
| Twilio, Inc. | 0.85% |
| Carpenter Tech. Corp. | 0.83% |
| Mks, Inc. | 0.82% |
| Curtiss-Wright Corp. | 0.76% |
| Entegris, Inc. | 0.75% |
| Nvent Elec. PLC | 0.75% |
| Ati, Inc. | 0.73% |
NOMIX Portfolio Allocation
Asset-class allocation of Mid Cap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.7% |
| Cash & Equivalents | 3.7% |
| Derivatives | 1.3% |
| Fixed Income | 0.1% |
NOMIX Performance
Total returns for NOMIX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 17.3% |
| 1 year | 25.8% |
| 3 years (annualised) | 15.3% |
| 5 years (annualised) | 9.0% |
NOMIX Risk Information
Risk metrics for NOMIX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.1%
NOMIX Costs and Fees
NOMIX costs about $10 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.10%
- Gross expense ratio: 0.16%
- Portfolio turnover: 16%
- Brokerage commissions: 0.20 bps of average net assets (SEC N-CEN)
NOMIX Cashflows
Over the 12 months to 2026-06, Mid Cap Index Fund had net inflows of $82.18M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $69.09M |
| 2026-05 | −$10.12M |
| 2026-04 | −$18.00M |
| 2026-03 | −$115.23K |
| 2026-02 | $2.78M |
| 2026-01 | −$2.76M |
NOMIX Debt Constituents
Largest debt holdings of Mid Cap Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Tsy. 0.00% | 0.08% |
NOMIX Prospectus and SEC Filings
Official Mid Cap Index Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2025-07-29
- Prospectus (485BPOS) — filed 2024-07-26
- Prospectus supplement (497) — filed 2026-08-05
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-06-10
- Annual census (N-CEN) — filed 2025-06-12
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.