JMCGX Performance — Jacob Discovery Fund, Investor Class
Data updated: 2026-10-14
JMCGX returned −3.02% year to date and +9.77% over one year to Aug 2026. Annualised returns are +13.82% over 3 years and −5.52% over 5 years. The fund trailed its US Micro-Cap Growth category average: $100 invested three years ago grew to $147, against $148 for the category, and to $110 over one year, against $110. Volatility over the past three years was 24.22% a year. In the 12 months to May 2026 the fund lost a net $2.7M, and assets reached $14.48M.
JMCGX Growth of $100
What $100 invested in Jacob Discovery Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Micro-Cap Growth category average over the same months.
| Period | JMCGX | Category average |
|---|---|---|
| 1 year (Sep 2025 – Aug 2026) | $110 | $110 |
| 3 years (Sep 2023 – Aug 2026) | $147 | $148 |
| 5 years (Sep 2021 – Aug 2026) | $75 | $76 |
| Since data start (Mar 2020 – Aug 2026) | $178 | $180 |
JMCGX Trailing Returns
Total returns to Aug 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | −3.02% |
| 1 year | +9.77% |
| 3 years (annualised) | +13.82% |
| 5 years (annualised) | −5.52% |
JMCGX Annual Returns
Calendar-year total returns of Jacob Discovery Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Aug) | −3.02% |
| 2025 | +32.27% |
| 2024 | +10.38% |
| 2023 | +4.06% |
| 2022 | −41.82% |
| 2021 | +14.28% |
| 2020 (Mar–Dec) | +82.01% |
JMCGX 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 | −2.1% | −3.2% | −7.3% | +13.4% | +2.4% | −1.7% | −9.1% | +6.3% | — | — | — | — |
| 2025 | +0.2% | −1.8% | −10.6% | −1.3% | +1.2% | +5.8% | +11.1% | +13.1% | +4.2% | +4.3% | +3.3% | +0.8% |
| 2024 | −1.6% | +3.6% | +4.2% | −10.4% | +8.2% | −4.2% | +7.4% | −4.7% | −0.2% | +1.2% | +10.7% | −2.3% |
| 2023 | +9.4% | −1.8% | −1.8% | −3.3% | +4.3% | +5.5% | −0.6% | −10.5% | −9.6% | −8.0% | +7.9% | +16.0% |
| 2022 | −14.6% | +0.2% | −2.4% | −20.0% | −5.6% | −7.8% | +3.7% | +2.5% | −9.3% | +5.3% | −1.7% | +0.1% |
| 2021 | +13.5% | +15.8% | +4.1% | −3.0% | −3.5% | +0.9% | −7.6% | +9.1% | −6.8% | +5.2% | −4.8% | −5.9% |
| 2020 | — | — | −21.9% | +24.3% | +7.6% | +7.6% | +1.3% | +14.5% | −1.5% | −0.1% | +24.3% | +14.1% |
JMCGX Risk
Risk measures from monthly returns over Sep 2023 – Aug 2026.
- 3-year volatility (annualised): 24.22%
- 3-year Sharpe ratio: 0.38 (vs 4.5% risk-free rate)
- Best month: +16.00% (Dec 2023)
- Worst month: −10.60% (Mar 2025)
JMCGX Fund Flows
Monthly money in and out of Jacob Discovery Fund, from SEC Form N-PORT.
- 12-month net flow: −$2.7M
- 12-month gross sales (incl. reinvestments): $2.0M
- Sales ÷ redemptions: 0.43×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $18K | $276K | −$258K |
| Apr 2026 | $61K | $624K | −$563K |
| Mar 2026 | $4K | $658K | −$653K |
| Feb 2026 | $106K | $672K | −$566K |
| Jan 2026 | $237K | $336K | −$99K |
| Dec 2025 | $402K | $146K | $256K |
| Nov 2025 | $123K | $230K | −$107K |
| Oct 2025 | $134K | $551K | −$417K |
| Sep 2025 | $402K | $339K | $63K |
| Aug 2025 | $293K | $324K | −$31K |
| Jul 2025 | $177K | $337K | −$160K |
| Jun 2025 | $23K | $149K | −$126K |
JMCGX Assets Under Management
Net assets of Jacob Discovery Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-08-31 | $14.48M |
| 2026-05-31 | $16.05M |
| 2026-02-28 | $16.37M |
| 2025-11-30 | $17.66M |
| 2025-08-31 | $16.15M |
| 2025-05-31 | $12.45M |
| 2025-02-28 | $14.76M |
| 2024-11-30 | $15.91M |
| 2024-08-31 | $15.53M |
| 2024-05-31 | $17.26M |
| 2024-02-29 | $18.69M |
| 2023-11-30 | $18.02M |
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.