RMHAX — Long Duration Bond Fund
Data updated: 2026-09-25
RMHAX — Long Duration Bond Fund. Long Treasury / Sovereign Bond · $500.21M AUM · 0.74% expense ratio. Holdings, fees, performance and SEC filings.
RMHAX Fund Overview
RMHAX — Long Duration Bond Fund is a US mutual fund managed by Russell Investment CO, categorised as Long Treasury / Sovereign Bond. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Russell Investment CO
- Category: Long Treasury / Sovereign Bond
- Assets under management: $500.21M
- Ticker: RMHAX
- SEC CIK: 0000351601
- SEC series ID: S000058644
- Share class ID: C000192619
RMHAX Holdings
Top 10 holdings of Long Duration Bond Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| United States Treasury | 5.20% |
| United States Treasury | 4.99% |
| United States Treasury | 4.88% |
| United States Treasury | 4.29% |
| United States Treasury | 4.08% |
| United States Treasury | 3.96% |
| United States Treasury | 3.92% |
| United States Treasury | 3.84% |
| Russell Investments Trust Company Commingled Employee Benefit Funds Trust-U.S. Cash Management Fund | 3.77% |
| United States Treasury | 3.74% |
RMHAX Portfolio Allocation
Asset-class allocation of Long Duration Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Fixed Income | 94.8% |
| Cash & Equivalents | 3.8% |
RMHAX Performance
Total returns for RMHAX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -1.9% |
RMHAX Costs and Fees
RMHAX costs about $74 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.74%
- Gross expense ratio: 0.74%
- Portfolio turnover: 59%
- Brokerage commissions: 0.29 bps of average net assets (SEC N-CEN)
RMHAX Cashflows
Over the 12 months to 2026-04, Long Duration Bond Fund had net inflows of $112.08M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | $534.66K |
| 2026-03 | −$2.53M |
| 2026-02 | $3.86M |
| 2026-01 | $1.80M |
| 2025-12 | $4.09M |
| 2025-11 | $81.91M |
RMHAX Debt Constituents
Largest debt holdings of Long Duration Bond Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Debt holding | % of net assets |
|---|---|
| United States Treasury | 5.20% |
| United States Treasury | 4.99% |
| United States Treasury | 4.88% |
| United States Treasury | 4.29% |
| United States Treasury | 4.08% |
| United States Treasury | 3.96% |
| United States Treasury | 3.92% |
| United States Treasury | 3.84% |
| United States Treasury | 3.74% |
| United States Treasury | 3.71% |
RMHAX Prospectus and SEC Filings
Official Long Duration Bond Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-02-27
- Prospectus (485BPOS) — filed 2025-02-28
- Prospectus (485BPOS) — filed 2024-02-28
- Portfolio holdings (N-PORT) — filed 2026-09-25
- Portfolio holdings (N-PORT) — filed 2026-06-22
- Portfolio holdings (N-PORT) — filed 2026-03-26
- Annual census (N-CEN) — filed 2026-01-09
- Annual census (N-CEN) — filed 2025-01-10
Related Funds
Other Long Treasury / Sovereign 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.