CISMX Performance — Clarkston Partners Fund, Institutional Class
Data updated: 2026-08-26
CISMX returned +2.86% year to date and +3.93% over one year to Jun 2026. Annualised returns are −0.32% over 3 years and −0.14% over 5 years. The fund trailed its US Small Blend category average: $100 invested three years ago grew to $99, against $156 for the category, and to $104 over one year, against $133. Volatility over the past three years was 13.06% a year. In the 12 months to Jun 2026 the fund lost a net $653.4M, and assets reached $290.79M.
CISMX Growth of $100
What $100 invested in Clarkston Partners Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Small Blend category average over the same months.
| Period | CISMX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $104 | $133 |
| 3 years (Jul 2023 – Jun 2026) | $99 | $156 |
| 5 years (Jul 2021 – Jun 2026) | $99 | $141 |
| Since data start (Jan 2020 – Jun 2026) | $133 | $197 |
CISMX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +2.86% |
| 1 year | +3.93% |
| 3 years (annualised) | −0.32% |
| 5 years (annualised) | −0.14% |
CISMX Annual Returns
Calendar-year total returns of Clarkston Partners Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +2.86% |
| 2025 | −8.37% |
| 2024 | +4.52% |
| 2023 | +6.40% |
| 2022 | −0.10% |
| 2021 | +7.97% |
| 2020 | +17.43% |
CISMX 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 | +3.1% | +0.8% | −6.2% | +4.1% | −2.9% | +4.4% | — | — | — | — | — | — |
| 2025 | +0.7% | −4.1% | −2.7% | −4.6% | +1.9% | −0.8% | +0.4% | +5.4% | −3.4% | −1.4% | +1.1% | −0.9% |
| 2024 | +0.2% | +2.5% | +1.5% | −7.2% | +2.7% | −1.5% | +4.1% | +1.6% | +1.2% | +0.5% | +5.5% | −5.9% |
| 2023 | +10.0% | −4.3% | −5.0% | +1.7% | −3.9% | +8.3% | −0.2% | −4.4% | −3.1% | −5.0% | +6.0% | +8.0% |
| 2022 | −4.4% | +1.2% | +6.6% | −3.8% | +2.7% | −6.2% | +7.5% | −2.1% | −9.4% | +9.9% | +5.2% | −5.2% |
| 2021 | +2.4% | +4.9% | +5.4% | +4.8% | +0.9% | −4.9% | −2.8% | +0.1% | −5.1% | +1.3% | −4.2% | +5.8% |
| 2020 | −0.3% | −7.2% | −15.4% | +9.8% | +4.0% | +2.2% | +3.8% | +4.2% | −3.5% | −2.1% | +16.7% | +7.7% |
CISMX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 13.06%
- 3-year Sharpe ratio: -0.37 (vs 4.5% risk-free rate)
- Best month: +7.99% (Dec 2023)
- Worst month: −7.24% (Apr 2024)
CISMX Fund Flows
Monthly money in and out of Clarkston Partners Fund, from SEC Form N-PORT.
- 12-month net flow: −$653.4M
- 12-month gross sales (incl. reinvestments): $61.9M
- Sales ÷ redemptions: 0.09×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $2.5M | $14.5M | −$12.0M |
| May 2026 | $2.8M | $8.6M | −$5.7M |
| Apr 2026 | $1.8M | $22.0M | −$20.2M |
| Mar 2026 | $11.5M | $154.1M | −$142.6M |
| Feb 2026 | $11.0M | $166.1M | −$155.1M |
| Jan 2026 | $2.2M | $148.6M | −$146.5M |
| Dec 2025 | $18.2M | $45.5M | −$27.4M |
| Nov 2025 | $1.4M | $45.0M | −$43.6M |
| Oct 2025 | $2.1M | $26.0M | −$23.9M |
| Sep 2025 | $3.6M | $30.2M | −$26.6M |
| Aug 2025 | $2.2M | $26.0M | −$23.8M |
| Jul 2025 | $2.7M | $28.6M | −$25.9M |
CISMX Assets Under Management
Net assets of Clarkston Partners Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $290.79M |
| 2026-03-31 | $313.00M |
| 2025-12-31 | $759.66M |
| 2025-09-30 | $899.93M |
| 2025-06-30 | $954.32M |
| 2025-03-31 | $1.05B |
| 2024-12-31 | $1.15B |
| 2024-09-30 | $1.18B |
| 2024-06-30 | $1.28B |
| 2024-03-31 | $1.37B |
| 2023-12-31 | $1.33B |
| 2023-09-30 | $1.31B |
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.