RMBMX Performance — RMB SMID Cap Fund, Class I
Data updated: 2026-08-19
RMBMX returned +13.92% year to date and +16.46% over one year to Jun 2026. Annualised returns are +12.10% over 3 years and +5.84% over 5 years. The fund trailed its US Mid-Cap Blend category average: $100 invested three years ago grew to $141, against $150 for the category, and to $116 over one year, against $122. Volatility over the past three years was 16.39% a year. In the 12 months to Jun 2026 the fund took in a net $53.6M, and assets reached $196.95M.
RMBMX Growth of $100
What $100 invested in RMB SMID Cap Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Blend category average over the same months.
| Period | RMBMX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $116 | $122 |
| 3 years (Jul 2023 – Jun 2026) | $141 | $150 |
| 5 years (Jul 2021 – Jun 2026) | $133 | $147 |
| Since data start (Jan 2020 – Jun 2026) | $195 | $195 |
RMBMX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +13.92% |
| 1 year | +16.46% |
| 3 years (annualised) | +12.10% |
| 5 years (annualised) | +5.84% |
RMBMX Annual Returns
Calendar-year total returns of RMB SMID Cap Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +13.92% |
| 2025 | +2.57% |
| 2024 | +10.04% |
| 2023 | +20.05% |
| 2022 | −20.86% |
| 2021 | +28.11% |
| 2020 | +24.40% |
RMBMX 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 | +2.6% | +2.7% | −6.2% | +8.9% | +0.8% | +4.9% | — | — | — | — | — | — |
| 2025 | +4.1% | −4.2% | −3.9% | −1.8% | +3.3% | +3.2% | −0.4% | +2.8% | +1.2% | −0.5% | +0.9% | −1.7% |
| 2024 | −0.8% | +5.5% | +3.7% | −6.6% | +3.2% | −0.5% | +6.9% | −0.5% | +2.1% | −1.7% | +9.1% | −9.2% |
| 2023 | +9.5% | −1.4% | −2.6% | −1.2% | −2.5% | +8.2% | +4.1% | −1.8% | −4.8% | −6.0% | +10.9% | +7.9% |
| 2022 | −9.7% | +0.3% | +0.6% | −9.0% | +1.0% | −8.4% | +12.2% | −4.8% | −8.7% | +6.6% | +5.3% | −5.7% |
| 2021 | −0.5% | +6.0% | +2.8% | +6.5% | +0.1% | +1.9% | +2.7% | +2.7% | −4.9% | +7.2% | −3.0% | +4.1% |
| 2020 | −0.3% | −8.9% | −17.7% | +14.9% | +8.5% | +0.6% | +6.0% | +3.0% | −2.4% | +4.1% | +12.0% | +6.9% |
RMBMX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 16.39%
- 3-year Sharpe ratio: 0.46 (vs 4.5% risk-free rate)
- Best month: +10.88% (Nov 2023)
- Worst month: −9.21% (Dec 2024)
RMBMX Fund Flows
Monthly money in and out of RMB SMID Cap Fund, from SEC Form N-PORT.
- 12-month net flow: $53.6M
- 12-month gross sales (incl. reinvestments): $86.5M
- Sales ÷ redemptions: 2.63×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $5.0M | $8.7M | −$3.6M |
| May 2026 | $800K | $2.9M | −$2.1M |
| Apr 2026 | $66.2M | $1.6M | $64.6M |
| Mar 2026 | $605K | $9.5M | −$8.9M |
| Feb 2026 | $34K | $744K | −$710K |
| Jan 2026 | $369K | $2.2M | −$1.8M |
| Dec 2025 | $12.3M | $2.4M | $9.9M |
| Nov 2025 | $55K | $3.2M | −$3.2M |
| Oct 2025 | $190K | $44K | $146K |
| Sep 2025 | $17K | $155K | −$138K |
| Aug 2025 | $640K | $663K | −$22K |
| Jul 2025 | $221K | $746K | −$525K |
RMBMX Assets Under Management
Net assets of RMB SMID Cap Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $196.95M |
| 2026-03-31 | $59.15M |
| 2025-12-31 | $71.39M |
| 2025-09-30 | $77.70M |
| 2025-06-30 | $75.76M |
| 2025-03-31 | $78.15M |
| 2024-12-31 | $83.88M |
| 2024-09-30 | $87.43M |
| 2024-06-30 | $84.07M |
| 2024-03-31 | $92.52M |
| 2023-12-31 | $86.55M |
| 2023-09-30 | $77.40M |
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.