NOBOX — Bond Index Fund
Data updated: 2026-08-28
NOBOX — Bond Index Fund. Long Total / Aggregate Bond · $3.01B AUM · 0.07% expense ratio · 3.7% 1-yr return. Holdings, fees, performance and SEC filings.
NOBOX Fund Overview
NOBOX — Bond Index Fund is a US mutual fund managed by Northern Funds, categorised as Long Total / Aggregate Bond. 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: Long Total / Aggregate Bond
- Assets under management: $3.01B
- 1-year return: 3.7%
- Ticker: NOBOX
- SEC CIK: 0000916620
- SEC series ID: S000015790
- Share class ID: C000043366
NOBOX Holdings
Top 10 holdings of Bond Index Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Ni US Gov T Portfolio | 1.74% |
| Northern Institutional Liquid Asset Portfolio | 1.26% |
| United States Tsy. 4.25% | 0.51% |
| United States Tsy. 4.25% | 0.44% |
| United States Tsy. 4.125% | 0.40% |
| United States Tsy. 4.25% | 0.39% |
| United States Tsy. 4.625% | 0.39% |
| United States Tsy. 4.00% | 0.39% |
| United States Tsy. 4.50% | 0.34% |
| United States Tsy. 4.25% | 0.33% |
NOBOX Portfolio Allocation
Asset-class allocation of Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 73.8% |
| Securitized | 25.1% |
| Cash & Equivalents | 3.0% |
NOBOX Performance
Total returns for NOBOX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 0.6% |
| 1 year | 3.7% |
| 3 years (annualised) | 4.1% |
| 5 years (annualised) | 0.0% |
NOBOX Risk Information
Risk metrics for NOBOX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 3.0%
NOBOX Costs and Fees
NOBOX costs about $7 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.07%
- Gross expense ratio: 0.13%
- Portfolio turnover: 57%
- Brokerage commissions: 0.00 bps of average net assets (SEC N-CEN)
NOBOX Cashflows
Over the 12 months to 2026-06, Bond Index Fund had net inflows of $731.04M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | $15.28M |
| 2026-05 | −$45.30M |
| 2026-04 | $64.29M |
| 2026-03 | $222.26M |
| 2026-02 | $177.41M |
| 2026-01 | $79.38M |
NOBOX Debt Constituents
Largest debt holdings of Bond Index Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Tsy. 4.25% | 0.51% |
| United States Tsy. 4.25% | 0.44% |
| United States Tsy. 4.125% | 0.40% |
| United States Tsy. 4.25% | 0.39% |
| United States Tsy. 4.625% | 0.39% |
| United States Tsy. 4.00% | 0.39% |
| United States Tsy. 4.50% | 0.34% |
| United States Tsy. 4.25% | 0.33% |
| United States Tsy. 4.375% | 0.33% |
| United States Tsy. 4.00% | 0.33% |
NOBOX Prospectus and SEC Filings
Official Bond 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 Long Total / Aggregate Bond 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.