IIRMX Performance — Voya RussellTM Mid Cap Index Portfolio, Class I
Data updated: 2026-08-24
IIRMX returned +15.11% year to date and +21.16% over one year to Jun 2026. Annualised returns are +16.04% over 3 years and +8.09% over 5 years. Against its US Mid-Cap Blend category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $156, against $150 for the category, and to $121 over one year, against $122. Volatility over the past three years was 14.98% a year. In the 12 months to Jun 2026 the fund lost a net $221.0M, and assets reached $719.91M.
IIRMX Growth of $100
What $100 invested in Voya RussellTM Mid Cap Index Portfolio 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 | IIRMX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $121 | $122 |
| 3 years (Jul 2023 – Jun 2026) | $156 | $150 |
| 5 years (Jul 2021 – Jun 2026) | $148 | $147 |
| Since data start (Jul 2019 – Jun 2026) | $204 | $208 |
IIRMX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +15.11% |
| 1 year | +21.16% |
| 3 years (annualised) | +16.04% |
| 5 years (annualised) | +8.09% |
IIRMX Annual Returns
Calendar-year total returns of Voya RussellTM Mid Cap Index Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +15.11% |
| 2025 | +10.09% |
| 2024 | +14.90% |
| 2023 | +16.82% |
| 2022 | −17.62% |
| 2021 | +22.17% |
| 2020 | +19.09% |
| 2019 (Jul–Dec) | +0.07% |
IIRMX 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 | +3.0% | +3.8% | −5.3% | +7.3% | +2.7% | +3.2% | — | — | — | — | — | — |
| 2025 | +4.2% | −2.8% | −4.7% | −1.1% | +5.7% | +3.8% | +1.8% | +2.4% | +0.8% | −0.8% | +1.2% | −0.3% |
| 2024 | −1.5% | +5.7% | +4.2% | −5.4% | +2.8% | −0.8% | +4.7% | +2.0% | +2.2% | −0.6% | +8.8% | −7.0% |
| 2023 | +8.2% | −2.4% | −1.6% | −0.6% | −2.8% | +8.4% | +3.9% | −3.4% | −5.1% | −5.0% | +10.1% | +7.7% |
| 2022 | −7.4% | −0.7% | +2.5% | −7.7% | 0.0% | −10.0% | +9.8% | −3.2% | −9.2% | +8.8% | +6.0% | −5.4% |
| 2021 | −0.3% | +5.5% | +2.7% | +5.0% | +0.8% | +1.4% | +0.7% | +2.5% | −4.1% | +5.9% | −3.5% | +4.1% |
| 2020 | 0.0% | −0.1% | −0.2% | +0.1% | +0.1% | 0.0% | +0.1% | 0.0% | 0.0% | 0.0% | +13.8% | +4.7% |
| 2019 | — | — | — | — | — | — | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
IIRMX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 14.98%
- 3-year Sharpe ratio: 0.77 (vs 4.5% risk-free rate)
- Best month: +10.13% (Nov 2023)
- Worst month: −7.04% (Dec 2024)
IIRMX Fund Flows
Monthly money in and out of Voya RussellTM Mid Cap Index Portfolio, from SEC Form N-PORT.
- 12-month net flow: −$221.0M
- 12-month gross sales (incl. reinvestments): $267.7M
- Sales ÷ redemptions: 0.55×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $3.9M | $5.3M | −$1.4M |
| May 2026 | $200.3M | $7.6M | $192.7M |
| Apr 2026 | $11.1M | $8.9M | $2.2M |
| Mar 2026 | $25.8M | $6.2M | $19.6M |
| Feb 2026 | $4.7M | $4.1M | $675K |
| Jan 2026 | $4.8M | $9.1M | −$4.3M |
| Dec 2025 | $4.9M | $6.7M | −$1.8M |
| Nov 2025 | $1.6M | $7.6M | −$6.0M |
| Oct 2025 | $3.4M | $6.4M | −$3.0M |
| Sep 2025 | $2.3M | $400.6M | −$398.3M |
| Aug 2025 | $1.7M | $10.3M | −$8.6M |
| Jul 2025 | $3.1M | $15.9M | −$12.8M |
IIRMX Assets Under Management
Net assets of Voya RussellTM Mid Cap Index Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $719.91M |
| 2026-03-31 | $636.65M |
| 2025-12-31 | $613.23M |
| 2025-09-30 | $624.03M |
| 2025-06-30 | $994.22M |
| 2025-03-31 | $917.56M |
| 2024-12-31 | $982.81M |
| 2024-09-30 | $1.03B |
| 2024-06-30 | $988.29M |
| 2024-03-31 | $990.22M |
| 2023-12-31 | $969.80M |
| 2023-09-30 | $886.62M |
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.