IRSSX Performance — Voya RussellTM Small Cap Index Portfolio, Class S
Data updated: 2026-08-24
IRSSX returned +22.45% year to date and +40.17% over one year to Jun 2026. Annualised returns are +17.96% over 3 years and +6.38% over 5 years. The fund beat its US Small Blend category average: $100 invested three years ago grew to $164, against $156 for the category, and to $140 over one year, against $133. Volatility over the past three years was 20.09% a year. In the 12 months to Jun 2026 the fund lost a net $218.8M, and assets reached $397.69M.
IRSSX Growth of $100
What $100 invested in Voya RussellTM Small Cap Index Portfolio grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Small Blend category average over the same months.
| Period | IRSSX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $140 | $133 |
| 3 years (Jul 2023 – Jun 2026) | $164 | $156 |
| 5 years (Jul 2021 – Jun 2026) | $136 | $141 |
| Since data start (Jul 2019 – Jun 2026) | $205 | $209 |
IRSSX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +22.45% |
| 1 year | +40.17% |
| 3 years (annualised) | +17.96% |
| 5 years (annualised) | +6.38% |
IRSSX Annual Returns
Calendar-year total returns of Voya RussellTM Small Cap Index Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +22.45% |
| 2025 | +12.08% |
| 2024 | +10.81% |
| 2023 | +16.35% |
| 2022 | −20.89% |
| 2021 | +14.04% |
| 2020 | +28.53% |
| 2019 (Jul–Dec) | +0.07% |
IRSSX 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 | +5.4% | +0.8% | −5.1% | +12.2% | +4.3% | +3.7% | — | — | — | — | — | — |
| 2025 | +2.6% | −5.4% | −6.9% | −2.4% | +5.2% | +5.4% | +1.7% | +7.2% | +2.9% | +1.7% | +1.0% | −0.7% |
| 2024 | −4.0% | +5.7% | +3.5% | −7.1% | +5.0% | −1.0% | +10.2% | −1.6% | +0.7% | −1.5% | +11.0% | −8.4% |
| 2023 | +9.8% | −1.8% | −4.8% | −1.9% | −0.9% | +8.0% | +6.1% | −5.1% | −5.9% | −6.9% | +9.1% | +12.2% |
| 2022 | −9.7% | +1.0% | +1.2% | −10.0% | +0.1% | −8.3% | +10.4% | −2.1% | −9.6% | +11.1% | +2.3% | −6.6% |
| 2021 | +5.0% | +6.2% | +0.9% | +2.1% | +0.1% | +1.9% | −3.7% | +2.2% | −3.0% | +4.2% | −4.3% | +2.2% |
| 2020 | 0.0% | −0.1% | −0.2% | +0.1% | +0.1% | 0.0% | 0.0% | +0.1% | 0.0% | 0.0% | +18.4% | +8.6% |
| 2019 | — | — | — | — | — | — | 0.0% | −0.1% | 0.0% | 0.0% | 0.0% | 0.0% |
IRSSX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 20.09%
- 3-year Sharpe ratio: 0.67 (vs 4.5% risk-free rate)
- Best month: +12.24% (Apr 2026)
- Worst month: −8.39% (Dec 2024)
IRSSX Fund Flows
Monthly money in and out of Voya RussellTM Small Cap Index Portfolio, from SEC Form N-PORT.
- 12-month net flow: −$218.8M
- 12-month gross sales (incl. reinvestments): $87.3M
- Sales ÷ redemptions: 0.29×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $2.5M | $3.8M | −$1.2M |
| May 2026 | $52.4M | $6.4M | $45.9M |
| Apr 2026 | $2.3M | $4.4M | −$2.1M |
| Mar 2026 | $1.3M | $3.4M | −$2.1M |
| Feb 2026 | $2.2M | $2.5M | −$281K |
| Jan 2026 | $6.5M | $4.4M | $2.1M |
| Dec 2025 | $7.6M | $3.5M | $4.0M |
| Nov 2025 | $1.7M | $3.5M | −$1.8M |
| Oct 2025 | $2.0M | $4.0M | −$2.0M |
| Sep 2025 | $2.1M | $256.0M | −$253.9M |
| Aug 2025 | $1.8M | $6.3M | −$4.5M |
| Jul 2025 | $5.0M | $8.0M | −$3.0M |
IRSSX Assets Under Management
Net assets of Voya RussellTM Small Cap Index Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $397.69M |
| 2026-03-31 | $332.36M |
| 2025-12-31 | $329.98M |
| 2025-09-30 | $323.11M |
| 2025-06-30 | $524.88M |
| 2025-03-31 | $498.89M |
| 2024-12-31 | $575.75M |
| 2024-09-30 | $605.53M |
| 2024-06-30 | $570.53M |
| 2024-03-31 | $607.74M |
| 2023-12-31 | $616.88M |
| 2023-09-30 | $556.62M |
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.