JAMRX — Janus Henderson Research Fund
Data updated: 2026-05-29
JAMRX — Janus Henderson Research Fund data: holdings, portfolio allocation, expenses, performance, cashflows, risk and SEC filings. United States Information Technology Equity · $24.76B AUM · 0.96% expense ratio · 16.8% 1-yr return. From SEC regulatory filings.
JAMRX Fund Overview
JAMRX — Janus Henderson Research Fund is a US mutual fund managed by Janus Investment Fund, categorised as United States Information Technology Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Janus Investment Fund
- Category: United States Information Technology Equity
- Assets under management: $24.76B
- 1-year return: 16.8%
- Ticker: JAMRX
- SEC CIK: 0000277751
- SEC series ID: S000010470
- Share class ID: C000028926
JAMRX Holdings
Top 10 holdings of Janus Henderson Research Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NVIDIA Corp. | 14.53% |
| Microsoft Corp. | 9.49% |
| Alphabet Inc. | 6.78% |
| Apple Inc. | 6.60% |
| Broadcom Inc | 5.82% |
| Amazon.com, Inc. | 4.97% |
| Meta Platforms Inc | 3.59% |
| Eli Lilly & Co. | 2.88% |
| Visa Inc | 2.20% |
| Netflix, Inc. | 2.08% |
JAMRX Portfolio Allocation
Asset-class allocation of Janus Henderson Research Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.2% |
| Other | 0.9% |
JAMRX Performance
Total returns for JAMRX (as of 2026-08-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -10.7% |
| 1 year | 16.8% |
| 3 years (annualised) | 21.4% |
| 5 years (annualised) | 11.3% |
JAMRX Risk Information
Risk metrics for JAMRX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 15.7%
JAMRX Costs and Fees
JAMRX costs about $96 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.96%
- Gross expense ratio: 0.96%
- Portfolio turnover: 33%
- Brokerage commissions: 1.44 bps of average net assets (SEC N-CEN)
JAMRX Cashflows
Over the 12 months to 2026-03, Janus Henderson Research Fund had net inflows of $1.98B, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-03 | −$155.42M |
| 2026-02 | −$141.04M |
| 2026-01 | −$123.85M |
| 2025-12 | $2.62B |
| 2025-11 | −$121.90M |
| 2025-10 | −$146.29M |
JAMRX Debt Constituents
No individual debt constituents are reported in Janus Henderson Research Fund's latest SEC N-PORT filing.
JAMRX Prospectus and SEC Filings
Official Janus Henderson Research Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
Related Funds
Other United States Information Technology 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.