IRGUX Performance — Voya Russelltm Mid Cap Growth Index Portfolio, Class S
Data updated: 2026-08-24
IRGUX returned +6.96% year to date and +5.67% over one year to Jun 2026. Annualised returns are +14.91% over 3 years and +5.37% over 5 years. Against its US Mid-Cap Growth category average the fund came out ahead over three years but behind over one: $100 invested three years ago grew to $152, against $152 for the category, and to $106 over one year, against $118. Volatility over the past three years was 17.76% a year. In the 12 months to Jun 2026 the fund lost a net $826.9M, and assets reached $77.46M.
IRGUX Growth of $100
What $100 invested in Voya Russelltm Mid Cap Growth Index Portfolio grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Mid-Cap Growth category average over the same months.
| Period | IRGUX | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $106 | $118 |
| 3 years (Jul 2023 – Jun 2026) | $152 | $152 |
| 5 years (Jul 2021 – Jun 2026) | $130 | $129 |
| Since data start (Jul 2019 – Jun 2026) | $170 | $203 |
IRGUX Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +6.96% |
| 1 year | +5.67% |
| 3 years (annualised) | +14.91% |
| 5 years (annualised) | +5.37% |
IRGUX Annual Returns
Calendar-year total returns of Voya Russelltm Mid Cap Growth Index Portfolio, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +6.96% |
| 2025 | +8.09% |
| 2024 | +21.28% |
| 2023 | +25.02% |
| 2022 | −27.16% |
| 2021 | +12.03% |
| 2020 | +18.95% |
| 2019 (Jul–Dec) | +0.07% |
IRGUX 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 | −0.9% | +0.8% | −6.3% | +6.4% | +4.7% | +2.6% | — | — | — | — | — | — |
| 2025 | +6.3% | −5.8% | −7.5% | +3.3% | +9.5% | +4.3% | +2.0% | +0.9% | −0.2% | −0.3% | −2.2% | −1.4% |
| 2024 | −0.6% | +7.4% | +2.4% | −5.9% | +1.0% | +1.6% | +0.6% | +2.4% | +3.3% | +1.7% | +13.3% | −6.3% |
| 2023 | +8.6% | −1.0% | +1.3% | −1.5% | 0.0% | +7.7% | +3.0% | −3.3% | −4.9% | −5.2% | +12.2% | +7.5% |
| 2022 | −12.9% | −1.3% | +1.5% | −11.3% | −3.9% | −7.6% | +12.2% | −3.3% | −8.5% | +7.8% | +5.4% | −6.0% |
| 2021 | −0.4% | +1.7% | −1.9% | +5.6% | −1.6% | +6.7% | +1.0% | +3.2% | −4.9% | +7.0% | −4.3% | +0.3% |
| 2020 | 0.0% | −0.1% | −0.2% | +0.2% | +0.1% | 0.0% | +0.1% | 0.0% | 0.0% | 0.0% | +13.4% | +4.8% |
| 2019 | — | — | — | — | — | — | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
IRGUX Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 17.76%
- 3-year Sharpe ratio: 0.59 (vs 4.5% risk-free rate)
- Best month: +13.26% (Nov 2024)
- Worst month: −7.47% (Mar 2025)
IRGUX Fund Flows
Monthly money in and out of Voya Russelltm Mid Cap Growth Index Portfolio, from SEC Form N-PORT.
- 12-month net flow: −$826.9M
- 12-month gross sales (incl. reinvestments): $128.0M
- Sales ÷ redemptions: 0.13×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $384K | $1.2M | −$843K |
| May 2026 | $377K | $1.1M | −$725K |
| Apr 2026 | $737K | $1.0M | −$285K |
| Mar 2026 | $333K | $1.2M | −$899K |
| Feb 2026 | $281K | $663K | −$382K |
| Jan 2026 | $4.6M | $1.5M | $3.1M |
| Dec 2025 | $239K | $1.4M | −$1.1M |
| Nov 2025 | $806K | $1.3M | −$483K |
| Oct 2025 | $809K | $2.3M | −$1.5M |
| Sep 2025 | $117.5M | $912.7M | −$795.2M |
| Aug 2025 | $1.1M | $12.4M | −$11.3M |
| Jul 2025 | $807K | $18.0M | −$17.2M |
IRGUX Assets Under Management
Net assets of Voya Russelltm Mid Cap Growth Index Portfolio by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $77.46M |
| 2026-03-31 | $69.44M |
| 2025-12-31 | $72.43M |
| 2025-09-30 | $78.52M |
| 2025-06-30 | $982.78M |
| 2025-03-31 | $863.73M |
| 2024-12-31 | $981.80M |
| 2024-09-30 | $958.10M |
| 2024-06-30 | $939.71M |
| 2024-03-31 | $1.03B |
| 2023-12-31 | $987.05M |
| 2023-09-30 | $909.59M |
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.