JSMGX — Janus Henderson Triton Fund
Data updated: 2026-08-26
JSMGX — Janus Henderson Triton Fund. United States Mid Cap Growth Equity · $5.93B AUM · 0.78% expense ratio. Holdings, fees, performance and SEC filings.
JSMGX Fund Overview
JSMGX — Janus Henderson Triton Fund is a US mutual fund managed by Janus Investment Fund, categorised as United States Mid Cap Growth 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 Mid Cap Growth Equity
- Assets under management: $5.93B
- 1-year return: 27.7%
- Ticker: JSMGX
- SEC CIK: 0000277751
- SEC series ID: S000010485
- Share class ID: C000077724
JSMGX Holdings
Top 10 holdings of Janus Henderson Triton Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Flex Ltd. | 3.75% |
| Teledyne Technologies, Inc. | 2.71% |
| Ligand Pharmaceuticals, Inc. | 2.63% |
| Glaukos Corp. | 2.49% |
| Aramark | 1.99% |
| Tower Semiconductor Ltd. | 1.93% |
| Sterling Infrastructure, Inc. | 1.80% |
| Revolution Medicines, Inc. | 1.78% |
| Lantheus Holdings, Inc. | 1.71% |
| Casey's General Stores, Inc. | 1.70% |
JSMGX Portfolio Allocation
Asset-class allocation of Janus Henderson Triton Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 98.6% |
| Cash & Equivalents | 2.8% |
JSMGX Performance
Total returns for JSMGX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 17.7% |
| 1 year | 27.7% |
| 3 years (annualised) | 14.1% |
| 5 years (annualised) | 4.8% |
JSMGX Risk Information
Risk metrics for JSMGX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 12.7%
JSMGX Costs and Fees
JSMGX costs about $78 per $10,000 invested per year in fund expenses.
- Net expense ratio: 0.78%
- Gross expense ratio: 0.78%
- Portfolio turnover: 20%
- Brokerage commissions: 3.37 bps of average net assets (SEC N-CEN)
JSMGX Cashflows
Over the 12 months to 2026-06, Janus Henderson Triton Fund had net outflows of $584.64M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$100.23M |
| 2026-05 | −$73.04M |
| 2026-04 | −$67.59M |
| 2026-03 | −$79.37M |
| 2026-02 | −$76.00M |
| 2026-01 | −$142.50M |
JSMGX Debt Constituents
No individual debt constituents are reported in Janus Henderson Triton Fund's latest SEC N-PORT filing.
JSMGX Prospectus and SEC Filings
Official Janus Henderson Triton Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-01-28
- Prospectus (485BPOS) — filed 2025-01-28
- Prospectus (485BPOS) — filed 2024-01-26
- Portfolio holdings (N-PORT) — filed 2026-08-26
- Portfolio holdings (N-PORT) — filed 2026-05-29
- Portfolio holdings (N-PORT) — filed 2026-02-27
- Annual census (N-CEN) — filed 2024-12-13
- Annual census (N-CEN) — filed 2023-12-14
Related Funds
Other United States Mid Cap Growth 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.