Registry rank 268 · Portfolio as of 2026-03-31
Janus Henderson Research Fund
JAMRX (Janus Henderson Research Fund) · JNRFX (Janus Henderson Research Fund) · JRAAX (Janus Henderson Research Fund) · JRACX (Janus Henderson Research Fund) · JRAIX (Janus Henderson Research Fund) · JRANX (Janus Henderson Research Fund) · JRARX (Janus Henderson Research Fund) · JRASX (Janus Henderson Research Fund)
The verdict
What the numbers say
69.5% of this portfolio matches the Russell 1000 Growth index, which costs $50 a year per $100,000 to own outright. This fund charges $960 a year.
Data provenance
Run 363649da-fcfb-4007-87ef-de06de7710ca; method closet-index@2.0.0; fund accession 0000277751-26-000158; comparison periods and expense-filing links appear with their figures. Machine capture time: 2026-07-29T14:22:09.616Z.
Computed rule checks
2 warnings · 0 checks clear · 1 unavailable
Warning
· Rule 1
The fund’s filed benchmark and its closest approved index control point to different comparisons.
Methodology rule · visual rules si-visual-explainers@1.0.0
Warning
· Rule 2
69.5% of this portfolio matches the Russell 1000 Growth index, which costs $50 a year per $100,000 to own outright. This fund charges $960 a year.
Methodology rule · visual rules si-visual-explainers@1.0.0
Unavailable
· Rule 3
No complete licensed window and filed headline fee are available together for this check.
Computed on licensed market-return history · filed fee as of 2025-09-30
Methodology rule · visual rules si-visual-explainers@1.0.0
Filed fees in dollars
SEC-convention illustration
Computed from SEC filings
Assumptions for each dollar figure: $100,000 starting amount · 5.0% annual return · annual compounding · fees deducted annually · 0.01% computed index-control baseline. Methodology.
| Share class and filing | 10 years | 20 years | 30 years |
|---|---|---|---|
| JAMRX0.96% · SEC expense filing · as of 2025-09-30 | $14,140 | $44,021 | $102,858 |
| JNRFX0.83% · SEC expense filing · as of 2025-09-30 | $12,272 | $38,437 | $90,333 |
| JRAAX1.03% · SEC expense filing · as of 2025-09-30 | $15,136 | $46,973 | $109,416 |
| JRACX1.79% · SEC expense filing · as of 2025-09-30 | $25,577 | $76,705 | $172,941 |
| JRAIX0.81% · SEC expense filing · as of 2025-09-30 | $11,983 | $37,566 | $88,366 |
| JRANX0.72% · SEC expense filing · as of 2025-09-30 | $10,676 | $33,607 | $79,376 |
| JRARX1.48% · SEC expense filing · as of 2025-09-30 | $21,402 | $65,076 | $148,650 |
| JRASX1.23% · SEC expense filing · as of 2025-09-30 | $17,951 | $55,203 | $127,464 |
Real trailing windows
Computed on licensed market-return history
Trailing windows use iShares Russell 1000 Growth ETF (IWF) adjusted-close total-return history through 2026-07-29 and the same filed index-control fee baseline as the convention table. Methodology.
| Share class and filing | 10 years | 20 years | 30 years |
|---|---|---|---|
| JAMRXFiled fee as of 2025-09-30 | $37,388Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $179,792Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JNRFXFiled fee as of 2025-09-30 | $32,433Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $156,860Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JRAAXFiled fee as of 2025-09-30 | $40,036Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $191,933Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JRACXFiled fee as of 2025-09-30 | $67,873Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $314,856Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JRAIXFiled fee as of 2025-09-30 | $31,666Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $153,287Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JRANXFiled fee as of 2025-09-30 | $28,201Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $137,057Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JRARXFiled fee as of 2025-09-30 | $56,717Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $266,628Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
| JRASXFiled fee as of 2025-09-30 | $47,522Computed on licensed market-return history 2016-07-29 to 2026-07-29 · proxy return 16.93% annualized | $225,837Computed on licensed market-return history 2006-07-31 to 2026-07-29 · proxy return 13.04% annualized | Proxy history begins 2000 — no full 30-year window |
These figures are illustrations, not predictions or personalized advice. Returns and fees can differ. Read the research disclaimer.
Change the illustration
Computed from SEC filings
Assumptions for the dollar figures below: $100,000 starting amount; 5.0% annual return; 20 years; annual compounding; fees deducted annually; 0.01% computed index-control baseline. JAMRX SEC expense filing, as of 2025-09-30. Methodology.
| Result | Amount |
|---|---|
| Ending value at baseline | $264,825 |
| Ending value at filed expense ratio | $220,804 |
| Difference attributed to fee drag | $44,021 |
This is an illustration, not a prediction or personalized advice. Returns and fees can differ. Read the research disclaimer.
Largest active differences vs the Russell 1000 Growth index
The bars are labeled and repeated in the table; color is not the only signal. Linked company names open Buy Like Buffett’s company record; Sensible Investor does not score stocks.
| Holding | Fund | Russell 1000 Growth index | Difference |
|---|---|---|---|
| APPLE INC. | 6.66% | 11.66% | -5.00% |
| TESLA, INC. | 0.65% | 3.55% | -2.90% |
| NVIDIA CORPORATION | 14.65% | 12.95% | +1.71% |
| COSTCO WHOLESALE CORPORATION | 0.00% | 1.60% | -1.60% |
| PALANTIR TECHNOLOGIES INC. | 0.00% | 1.15% | -1.15% |
| BROADCOM INC. | 5.87% | 4.80% | +1.07% |
| THE HOME DEPOT, INC. | 0.00% | 0.90% | -0.90% |
| LAM RESEARCH CORPORATION | 1.85% | 0.97% | +0.88% |
| The Procter & Gamble Co. | 0.84% | 0.00% | +0.84% |
| INTUIT INC. | 1.25% | 0.43% | +0.82% |
Source and verification
SEC N-PORT filing · filed 2026-05-29 · period 2026-03-31
SEC expense filing · period 2025-09-30
Cite these figures
Each snippet includes the figure’s source-event date and immutable verification URL.
Best-fit active share
Sensible Investor, “Janus Henderson Research Fund — best-fit active share,” 30.5% versus the Russell 1000 Growth index, fund portfolio as of 2026-03-31; measured against the filed holdings of iShares Russell 1000 Growth ETF (IWF), as of 2026-03-31. https://sensible-investor.com/registry/jamrx/as-of/363649da-fcfb-4007-87ef-de06de7710ca
JAMRX filed expense ratio
Sensible Investor, “Janus Henderson Research Fund — filed expense ratio,” 0.96% for JAMRX, as of 2025-09-30. https://sensible-investor.com/registry/jamrx/as-of/363649da-fcfb-4007-87ef-de06de7710ca
JAMRX fee per active unit
Sensible Investor, “Janus Henderson Research Fund — fee per unit of active management,” 3.14% using the JAMRX expense ratio as of 2025-09-30 and fund portfolio as of 2026-03-31. https://sensible-investor.com/registry/jamrx/as-of/363649da-fcfb-4007-87ef-de06de7710ca