JARTX Performance — Janus Henderson Forty Fund, Class S
Data updated: 2026-08-26
JARTX returned +4.23% year to date and +13.00% over one year to Jun 2026. Annualised returns are +19.99% over 3 years and +9.10% over 5 years. The fund trailed its US Large Growth category average: $100 invested three years ago grew to $173, against $175 for the category, and to $113 over one year, against $117. Volatility over the past three years was 17.43% a year. In the 12 months to Jun 2026 the fund took in a net $549.4M, and assets reached $23.80B.
JARTX Growth of $100
What $100 invested in Janus Henderson Forty Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Large Growth category average over the same months.
| Period | JARTX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $113 | $117 |
| 3 years (Jul 2023 – Jun 2026) | $173 | $175 |
| 5 years (Jul 2021 – Jun 2026) | $155 | $166 |
| Since data start (Jul 2019 – Jun 2026) | $265 | $271 |
JARTX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +4.23% |
| 1 year | +13.00% |
| 3 years (annualised) | +19.99% |
| 5 years (annualised) | +9.10% |
JARTX Annual Returns
Calendar-year total returns of Janus Henderson Forty Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +4.23% |
| 2025 | +17.84% |
| 2024 | +27.71% |
| 2023 | +39.34% |
| 2022 | −33.82% |
| 2021 | +22.48% |
| 2020 | +38.58% |
| 2019 (Jul–Dec) | +8.04% |
JARTX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | −2.8% | −5.2% | −4.9% | +13.8% | +7.2% | −2.5% | — | — | — | — | — | — |
| 2025 | +2.7% | −2.7% | −8.8% | +1.1% | +8.2% | +9.0% | +4.3% | −0.7% | +4.5% | +2.5% | −2.0% | −0.3% |
| 2024 | +2.1% | +6.5% | +3.6% | −5.4% | +6.1% | +5.2% | −0.4% | +2.9% | +2.6% | −0.4% | +4.9% | −2.2% |
| 2023 | +6.2% | −1.1% | +8.6% | +6.2% | +4.4% | +0.1% | −5.3% | −1.7% | +4.1% | +4.8% | +10.7% | −2.0% |
| 2022 | +1.8% | −4.0% | −9.5% | −9.8% | −4.2% | −13.9% | −10.1% | −5.2% | +11.4% | −5.9% | +6.8% | +5.3% |
| 2021 | +0.7% | +2.7% | −1.6% | +5.0% | −0.7% | +8.0% | −5.3% | +2.7% | +4.3% | +0.5% | −0.4% | +5.2% |
| 2020 | −9.3% | −6.5% | +2.9% | +4.7% | +6.2% | +13.7% | −4.3% | +10.3% | +6.7% | +4.2% | +9.6% | −2.5% |
| 2019 | — | — | — | — | — | — | 0.0% | 0.0% | 0.0% | +2.4% | +4.2% | +1.2% |
JARTX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 17.43%
- 3-year Sharpe ratio: 0.89 (vs 4.5% risk-free rate)
- Best month: +13.81% (Apr 2026)
- Worst month: −8.75% (Mar 2025)
JARTX Fund Flows
Monthly money in and out of Janus Henderson Forty Fund, from SEC Form N-PORT.
- 12-month net flow: $549.4M
- 12-month gross sales (incl. reinvestments): $4.0B
- Sales ÷ redemptions: 1.16×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $108.2M | $308.8M | −$200.6M |
| May 2026 | $116.5M | $345.7M | −$229.2M |
| Apr 2026 | $128.0M | $325.3M | −$197.3M |
| Mar 2026 | $119.4M | $287.5M | −$168.1M |
| Feb 2026 | $108.2M | $265.9M | −$157.7M |
| Jan 2026 | $123.0M | $281.2M | −$158.2M |
| Dec 2025 | $2.8B | $445.2M | $2.4B |
| Nov 2025 | $94.9M | $236.6M | −$141.7M |
| Oct 2025 | $109.3M | $258.6M | −$149.3M |
| Sep 2025 | $96.5M | $209.2M | −$112.7M |
| Aug 2025 | $90.5M | $230.5M | −$140.0M |
| Jul 2025 | $103.9M | $251.9M | −$148.1M |
JARTX Assets Under Management
Net assets of Janus Henderson Forty Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $23.80B |
| 2026-03-31 | $20.54B |
| 2025-12-31 | $23.93B |
| 2025-09-30 | $24.58B |
| 2025-06-30 | $23.07B |
| 2025-03-31 | $19.74B |
| 2024-12-31 | $22.01B |
| 2024-09-30 | $22.10B |
| 2024-06-30 | $21.32B |
| 2024-03-31 | $20.45B |
| 2023-12-31 | $18.41B |
| 2023-09-30 | $16.56B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.