MIOFX Performance — Marsico International Opportunities Fund, Investor Class
Data updated: 2026-08-26
MIOFX returned +15.48% year to date and +18.29% over one year to Jun 2026. Annualised returns are +27.00% over 3 years and +11.56% over 5 years. The fund beat its International Large Growth category average: $100 invested three years ago grew to $205, against $139 for the category, and to $118 over one year, against $113. Volatility over the past three years was 17.75% a year. In the 12 months to Jun 2026 the fund took in a net $67.6M, and assets reached $203.10M.
MIOFX Growth of $100
What $100 invested in Marsico International Opportunities Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the International Large Growth category average over the same months.
| Period | MIOFX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $118 | $113 |
| 3 years (Jul 2023 – Jun 2026) | $205 | $139 |
| 5 years (Jul 2021 – Jun 2026) | $173 | $118 |
| Since data start (Jul 2019 – Jun 2026) | $242 | $178 |
MIOFX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +15.48% |
| 1 year | +18.29% |
| 3 years (annualised) | +27.00% |
| 5 years (annualised) | +11.56% |
MIOFX Annual Returns
Calendar-year total returns of Marsico International Opportunities Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +15.48% |
| 2025 | +28.48% |
| 2024 | +32.98% |
| 2023 | +17.94% |
| 2022 | −23.70% |
| 2021 | +4.89% |
| 2020 | +20.58% |
| 2019 (Jul–Dec) | +7.90% |
MIOFX 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 | +1.9% | +2.1% | −10.4% | +11.9% | +6.6% | +3.8% | — | — | — | — | — | — |
| 2025 | +7.4% | +0.5% | −5.6% | +4.8% | +8.7% | +8.0% | −1.0% | +0.7% | +7.3% | −2.0% | −4.0% | +1.6% |
| 2024 | +6.4% | +9.1% | +4.0% | −3.9% | +5.7% | +4.9% | −1.7% | +4.1% | +0.9% | −2.1% | +5.0% | −2.6% |
| 2023 | +9.8% | −5.1% | +5.9% | +1.9% | −2.7% | +3.7% | +1.1% | −3.7% | −4.6% | −2.0% | +11.1% | +2.6% |
| 2022 | −7.3% | −5.8% | −1.3% | −7.2% | +1.1% | −8.5% | +6.5% | −5.7% | −10.7% | +4.1% | +13.6% | −2.8% |
| 2021 | −0.6% | +1.7% | −0.1% | +4.5% | +1.7% | +0.4% | −0.9% | +3.2% | −4.1% | +2.9% | −6.9% | +3.6% |
| 2020 | −1.4% | −6.2% | −12.2% | +9.5% | +5.6% | +5.7% | +5.4% | +5.3% | −2.5% | −3.3% | +11.5% | +4.1% |
| 2019 | — | — | — | — | — | — | +0.1% | −1.0% | +0.8% | +2.2% | +2.5% | +3.0% |
MIOFX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 17.75%
- 3-year Sharpe ratio: 1.27 (vs 4.5% risk-free rate)
- Best month: +11.92% (Apr 2026)
- Worst month: −10.42% (Mar 2026)
MIOFX Fund Flows
Monthly money in and out of Marsico International Opportunities Fund, from SEC Form N-PORT.
- 12-month net flow: $67.6M
- 12-month gross sales (incl. reinvestments): $143.6M
- Sales ÷ redemptions: 1.89×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $5.7M | $2.3M | $3.4M |
| May 2026 | $7.3M | $3.2M | $4.1M |
| Apr 2026 | $6.2M | $16.9M | −$10.6M |
| Mar 2026 | $5.3M | $4.6M | $692K |
| Feb 2026 | $6.2M | $5.7M | $422K |
| Jan 2026 | $13.2M | $13.1M | $80K |
| Dec 2025 | $18.5M | $5.4M | $13.1M |
| Nov 2025 | $12.3M | $6.7M | $5.6M |
| Oct 2025 | $18.6M | $4.4M | $14.2M |
| Sep 2025 | $11.0M | $2.9M | $8.1M |
| Aug 2025 | $13.5M | $8.3M | $5.2M |
| Jul 2025 | $25.9M | $2.5M | $23.4M |
MIOFX Assets Under Management
Net assets of Marsico International Opportunities Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $203.10M |
| 2026-03-31 | $167.60M |
| 2025-12-31 | $178.56M |
| 2025-09-30 | $161.16M |
| 2025-06-30 | $113.91M |
| 2025-03-31 | $72.78M |
| 2024-12-31 | $59.80M |
| 2024-09-30 | $56.41M |
| 2024-06-30 | $52.21M |
| 2024-03-31 | $47.98M |
| 2023-12-31 | $39.65M |
| 2023-09-30 | $36.84M |
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.