RMBJX — RMB Fund
Data updated: 2026-05-21
RMBJX — RMB Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Large Cap Blend / Core Equity · $104.54M AUM · 1.98% expense ratio · 7.6% 1-yr return. From SEC regulatory filings.
RMBJX Fund Overview
RMBJX — RMB Fund is a US mutual fund managed by Rmb Investors Trust, categorised as United States Large 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: Rmb Investors Trust
- Category: United States Large Cap Blend / Core Equity
- Assets under management: $104.54M
- 1-year return: 7.6%
- Ticker: RMBJX
- SEC CIK: 0000030126
- SEC series ID: S000002997
- Share class ID: C000008244
RMBJX Holdings
Top 10 holdings of RMB Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Alphabet Inc | 12.67% |
| Microsoft Corp | 9.80% |
| Amazon.com Inc | 6.57% |
| NVIDIA Corp | 6.18% |
| Apple Inc | 5.74% |
| TJX Cos Inc/The | 3.93% |
| Visa Inc | 3.74% |
| AMETEK Inc | 3.51% |
| JPMorgan Chase & Co | 3.15% |
| Eli Lilly & Co | 2.73% |
RMBJX Portfolio Allocation
Asset-class allocation of RMB Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.6% |
| Cash & Equivalents | 1.4% |
RMBJX Performance
Total returns for RMBJX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -9.2% |
| 1 year | 7.6% |
| 3 years (annualised) | 8.4% |
| 5 years (annualised) | 5.2% |
RMBJX Risk Information
Risk metrics for RMBJX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 10.1%
RMBJX Costs and Fees
RMBJX costs about $198 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.98%
- Gross expense ratio: 1.98%
- Portfolio turnover: 43%
- Brokerage commissions: 2.49 bps of average net assets (SEC N-CEN)
RMBJX Cashflows
Over the 12 months to 2026-03, RMB Fund had net inflows of $841.62K, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$128.54K |
| 2026-02 | −$571.68K |
| 2026-01 | $1.15M |
| 2025-12 | $5.80M |
| 2025-11 | −$2.11M |
| 2025-10 | −$184.57K |
RMBJX Debt Constituents
No individual debt constituents are reported in RMB Fund's latest SEC N-PORT filing.
RMBJX Prospectus and SEC Filings
Official RMB Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Large 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.