RMHRX — Long Duration Bond Fund
Data updated: 2026-09-25
RMHRX — Long Duration Bond Fund. Long Treasury / Sovereign Bond · $500.21M AUM · 0.32% expense ratio. Holdings, fees, performance and SEC filings.
RMHRX Fund Overview
RMHRX — 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: RMHRX
- SEC CIK: 0000351601
- SEC series ID: S000058644
- Share class ID: C000192623
RMHRX Investment Objective and Strategy
Long Duration Bond Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by Russell Investment CO.
Investment objective
The Fund seeks to provide total return.
Principal investment strategy
The Fund has a non-fundamental policy to invest, under normal circumstances, at least 80% of the value of its net assets plus borrowings for investment purposes in bonds. Russell Investment Management, LLC (RIM) seeks to achieve the Fund's investment objective by managing the Fund's overall exposures (such as duration, sector, industry, region, currency, credit quality, yield curve positioning or interest rates). The Funds exposures are monitored and analyzed relative to the Bloomberg Barclays U.S. Aggregate Bond Index and RIM tilts the Funds exposures by over or underweighting any of the portfolios characteristics relative to the Bloomberg Barclays U.S. Aggregate Bond Index over the short, intermediate or long term. RIM utilizes a variety of quantitative inputs and qualitative investment information and analysis in the management of the Fund to assess Fund characteristics and identify a portfolio which it believes will provide the desired exposures.
After RIM has determined the Fund's desired exposures, RIM invests the Fund's assets in a variety of instruments, including securities of issuers in a variety of sectors of the fixed income market and fixed income currency derivatives, in order to reflect those desired exposures. RIM may replicate indexes or may utilize techniques such as optimization and/or substitution of index constituents to seek to efficiently gain desired portfolio exposures. The Fund may invest in (1) U.S. and non-U.S. corporate debt securities, (2) Yankee Bonds (dollar-denominated obligations issued in the U.S. by non-U.S. banks and corporations) and (3) fixed income securities issued or guaranteed by the U.S. government, non-U.S. governments, or by any U.S. government or non-U.S. government agency or instrumentality.
The Fund may invest in debt securities that are rated below investment grade (commonly referred to as high-yield or junk bonds). The Fund may invest in currency futures and options on futures, forward currency contracts, currency swaps and currency options for speculative purposes or to seek to protect a portion of its investments against adverse currency exchange rate changes. The Fund may invest in derivative instruments and may use derivatives to take both long and short positions. The Funds use of derivatives may cause the Funds investment returns to be impacted by the performance of securities the Fund does not own and result in the Funds total investment exposure exceeding the value of its portfolio. The duration of the Fund's portfolio will typically be within one year of the duration of the Bloomberg Barclays U.S.
Aggregate Bond Index, but may vary up to two years from the Index's duration. The Fund may invest in mortgage related securities, including mortgage-backed securities. A portion of the Funds net assets may be illiquid. The Fund may invest in variable and floating rate securities. The Fund invests in non-U.S. debt securities, including developed and emerging market debt securities, some of which may be non-U.S. dollar denominated. The Fund considers the following countries to have developed markets: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Israel, Italy, Japan, Luxembourg, the Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom and the United States. As a general rule, the Fund considers emerging market countries to include every other country.
The Fund may enter into repurchase agreements. The Fund may invest in commercial paper, including asset-backed commercial paper. The Fund usually, but not always, exposes a portion of its cash to changes in interest rates or market/sector returns by purchasing fixed income securities and/or derivatives, which typically include exchange traded fixed income futures contracts, to be announced (TBA) securities and swaps. Please refer to the Investment Objective and Investment Strategies section in the Fund's Prospectus for further information.
RMHRX 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% |
RMHRX 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% |
RMHRX Performance
Total returns for RMHRX (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -1.9% |
RMHRX Costs and Fees
RMHRX costs about $32 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.32%
- Gross expense ratio: 0.34%
- Portfolio turnover: 59%
- Brokerage commissions: 0.29 bps of average net assets (SEC N-CEN)
RMHRX 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 |
RMHRX 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% |
RMHRX 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.