Overview
Fund Tagline
The Portfolio seeks long-term capital appreciation.
Fund Description
View important disclosureProduct Facts
| Ticker Symbol | IIMOX |
| CUSIP | 92913P883 |
| Inception Date | May 5, 2000 |
| Dividends Paid | Quarterly |
- Actively invests in stocks of mid-sized U.S. companies which primarily fall within the range of the Russell Midcap Growth Index.
- Emphasizes bottom-up stock selection to help drive consistent alpha across market cycles.
- Prioritizes high-quality companies with strong capital investment and improving profitability.
- Minimizes macro and style biases to focus on fundamental, stock-specific insights.
The Portfolio seeks long-term capital appreciation.
- Actively invests in stocks of mid-sized U.S. companies which primarily fall within the range of the Russell Midcap Growth Index.
- Emphasizes bottom-up stock selection to help drive consistent alpha across market cycles.
- Prioritizes high-quality companies with strong capital investment and improving profitability.
- Minimizes macro and style biases to focus on fundamental, stock-specific insights.
The Portfolio seeks long-term capital appreciation.
Performance
Yields
As of February 28, 2018
| SEC 30-Day Yield (Unsubsidized) SEC 30-Day Yield (Unsubsidized) A standardized yield calculation created by the SEC, it reflects the income earned during a 30-day period, after the deduction of the fund's gross expenses. Negative 30-Day SEC Yield results when accrued expenses of the past 30 days exceed the income collected during the past 30 days. | 0.10 |
| SEC 30-Day Yield (Subsidized) SEC 30-Day Yield (Subsidized) A standardized yield calculation created by the SEC, it reflects the income earned during a 30-day period, after the deduction of the fund's net expenses (net of any expense waivers or reimbursements). | 0.20 |
| Distribution Yield @ NAV Distribution Yield @ NAV Current annualized distribution rate based upon NAV is the latest dividend shown as an annualized percentage of net asset value. This yield does not include the return of principal or other non-income sources. | 0.12 |
| Distribution Yield @ MOP Distribution Yield @ MOP Current annualized distribution rate, based upon maximum offering price which is adjusted for sales changes (MOP), where applicable, is the latest dividend shown as an annualized percentage of maximum offering price. This yield does not include the return of principal or other non-income sources. | 0.12 |
Average Annual Total Returns %
As of July 31, 2025
As of June 30, 2025
| Most Recent Month End | YTD | 1 YR | 3 YR | 5 YR | 10 YR | Expense Ratios | |
|---|---|---|---|---|---|---|---|
| Gross | Net | ||||||
| Net Asset Value | +8.14 | +21.06 | +13.97 | +10.24 | +10.89 | 0.95% | 0.75% |
| With Sales Charge | +8.14 | +21.06 | +13.97 | +10.24 | +10.89 | ||
| Net Asset Value | +5.59 | +15.59 | +17.53 | +11.41 | +10.80 | 0.95% | 0.75% |
| With Sales Charge | +5.59 | +15.59 | +17.53 | +11.41 | +10.80 | ||
| Russell Midcap Index | +6.78 | +12.06 | +11.48 | +12.24 | +10.01 | — | — |
| Russell Midcap Growth Index | +12.02 | +28.28 | +17.66 | +11.38 | +12.17 | — | — |
| Russell Midcap Index | +4.84 | +15.21 | +14.33 | +13.11 | +9.89 | — | — |
| Russell Midcap Growth Index | +9.79 | +26.49 | +21.46 | +12.65 | +12.13 | — | — |
Inception Date - Class I: May 5, 2000
Current Maximum Sales Charge: 0.00%
The performance quoted represents past performance and does not guarantee future results. Current performance may be lower or higher than the performance information shown. The investment return and principal value of an investment in the Portfolio will fluctuate, so that your shares, when redeemed, may be worth more or less than their original cost. See above "Average Annual Total Returns %" for performance information current to the most recent month-end.
Returns for the other share classes will vary due to different charges and expenses. Performance assumes reinvestment of distributions and does not account for taxes.
Total investment return at net asset value has been calculated assuming a purchase at net asset value at the beginning of the period and a sale at net asset value at the end of the period; and assumes reinvestment of dividends, capital gain distributions and return of capital distributions/allocations, if any, in accordance with the provisions of the dividend reinvestment plan. Net asset value equals total Fund assets net of Fund expenses such as operating costs and management fees. Total investment return at net asset value is not annualized for periods less than one year.
The Russell Midcap Growth Index is an unmanaged index that measures the performance of those companies included in the Russell Midcap Index with relatively higher price-to-book ratios and higher forecasted growth values.
Past performance does not guarantee future results.
Growth of a $10,000 Investment
For the period 08/31/2015 through 07/31/2025
Ending Value: $28,120.00
The performance quoted in the "Growth of a $10,000 Investment" chart represents past performance. Performance shown is without sales charges; had sales charges been deducted, performance would have been less. Ending value includes reinvestment of distributions.
Average Annual Total Returns %
As of July 31, 2025
As of June 30, 2025
| Most Recent Month End | YTD | 1 YR | 3 YR | 5 YR | 10 YR | Expense Ratios | |
|---|---|---|---|---|---|---|---|
| Gross | Net | ||||||
| Net Asset Value | +8.14 | +21.06 | +13.97 | +10.24 | +10.89 | 0.95% | 0.75% |
| With Sales Charge | +8.14 | +21.06 | +13.97 | +10.24 | +10.89 | ||
| Net Asset Value | +5.59 | +15.59 | +17.53 | +11.41 | +10.80 | 0.95% | 0.75% |
| With Sales Charge | +5.59 | +15.59 | +17.53 | +11.41 | +10.80 | ||
| Russell Midcap Index | +6.78 | +12.06 | +11.48 | +12.24 | +10.01 | — | — |
| Russell Midcap Growth Index | +12.02 | +28.28 | +17.66 | +11.38 | +12.17 | — | — |
| Russell Midcap Index | +4.84 | +15.21 | +14.33 | +13.11 | +9.89 | — | — |
| Russell Midcap Growth Index | +9.79 | +26.49 | +21.46 | +12.65 | +12.13 | — | — |
Inception Date - Class I: May 5, 2000
Current Maximum Sales Charge: 0.00%
The performance quoted represents past performance and does not guarantee future results. Current performance may be lower or higher than the performance information shown. The investment return and principal value of an investment in the Portfolio will fluctuate, so that your shares, when redeemed, may be worth more or less than their original cost. See above "Average Annual Total Returns %" for performance information current to the most recent month-end.
Returns for the other share classes will vary due to different charges and expenses. Performance assumes reinvestment of distributions and does not account for taxes.
Total investment return at net asset value has been calculated assuming a purchase at net asset value at the beginning of the period and a sale at net asset value at the end of the period; and assumes reinvestment of dividends, capital gain distributions and return of capital distributions/allocations, if any, in accordance with the provisions of the dividend reinvestment plan. Net asset value equals total Fund assets net of Fund expenses such as operating costs and management fees. Total investment return at net asset value is not annualized for periods less than one year.
The Russell Midcap Growth Index is an unmanaged index that measures the performance of those companies included in the Russell Midcap Index with relatively higher price-to-book ratios and higher forecasted growth values.
Past performance does not guarantee future results.
Growth of a $10,000 Investment
For the period 08/31/2015 through 07/31/2025
Ending Value: $28,120.00
The performance quoted in the "Growth of a $10,000 Investment" chart represents past performance. Performance shown is without sales charges; had sales charges been deducted, performance would have been less. Ending value includes reinvestment of distributions.
Portfolio
Portfolio Statistics
As of July 31, 2025
| Net Assets millions Net Assets The per-share dollar amount of the fund, calculated by dividing the total value of all the securities in its portfolio, less any liabilities, by the number of fund shares outstanding. | $1,053.9 |
| Number of Holdings Number of Holdings Number of Holdings in the investment. | 83 |
| P/E next 12 months P/E P/E (next 12 months) calculates the price of a stock divided by its earnings per share. | 37.67 |
| P/B trailing 12 months P/B Price to book ratio (trailing 12 month) calculates the ratio of a stock’s price to its book value. | 10.65 |
| Weighted Average Market Cap millions Weighted Average Market Cap Weighted Average Market Capitalization is the value of a corporation as determined by the market price of its issued and outstanding common stock. | $42,329.5 |
| EPS Growth (3-5 Year Estimate) EPS Growth (3-5 Year Estimate) The portion of a company's profit allocated to each outstanding share of common stock. EPS growth serves as an indicator of a company's profitability. | 15.54 |
| Active Share Active Share Active Share is a measure of the percentage of stock holdings in a manager's portfolio that differ from the benchmark index. | 56.71 |
| Price to Cash Flow Price to Cash Flow The ratio of a stock’s price to its cash flow per share. The price-to-cash flow ratio is an indicator of a stock’s valuation | 37.21 |
| ROA % ROA ROA is an indicator of how profitable a company is relative to its total assets. ROA gives an idea as to how efficient management is at using its assets to generate earnings. | 7.03 |
| Total |
Top Holdings
As of July 31, 2025
| Roblox Corp. | 3.89 |
| Royal Caribbean Group | 3.75 |
| Cencora, Inc. | 3.14 |
| Howmet Aerospace Inc. | 2.91 |
| Comfort Systems USA, Inc. | 2.87 |
| Vistra Corp. | 2.84 |
| Alnylam Pharmaceuticals, Inc | 2.39 |
| Axon Enterprise Inc | 2.32 |
| Verisk Analytics, Inc. | 2.32 |
| Cloudflare Inc | 2.16 |
| Total | #,###.2 |
Portfolio Composition
As of July 31, 2025
| EM Equity | 0.00 |
| Foreign Stocks | 5.08 |
| Cash | 0.76 |
| US Common Stocks | 94.16 |
| Total | #,###.2 |
Sector Weightings
As of July 31, 2025
| CONSUMER DISCRETIONARY | 21.50 |
| INDUSTRIALS | 20.68 |
| INFORMATION TECHNOLOGY | 16.50 |
| HEALTH CARE | 14.95 |
| FINANCIALS | 9.27 |
| COMMUNICATION SERVICES | 6.42 |
| CONSUMER STAPLES | 2.94 |
| UTILITIES | 2.84 |
| ENERGY | 2.61 |
| REAL ESTATE | 1.78 |
| MATERIALS | 0.50 |
| Total | #,###.2 |
Portfolio Statistics
As of July 31, 2025
| Net Assets millions Net Assets The per-share dollar amount of the fund, calculated by dividing the total value of all the securities in its portfolio, less any liabilities, by the number of fund shares outstanding. | $1,053.9 |
| Number of Holdings Number of Holdings Number of Holdings in the investment. | 83 |
| P/E next 12 months P/E P/E (next 12 months) calculates the price of a stock divided by its earnings per share. | 37.67 |
| P/B trailing 12 months P/B Price to book ratio (trailing 12 month) calculates the ratio of a stock’s price to its book value. | 10.65 |
| Weighted Average Market Cap millions Weighted Average Market Cap Weighted Average Market Capitalization is the value of a corporation as determined by the market price of its issued and outstanding common stock. | $42,329.5 |
| EPS Growth (3-5 Year Estimate) EPS Growth (3-5 Year Estimate) The portion of a company's profit allocated to each outstanding share of common stock. EPS growth serves as an indicator of a company's profitability. | 15.54 |
| Active Share Active Share Active Share is a measure of the percentage of stock holdings in a manager's portfolio that differ from the benchmark index. | 56.71 |
| Price to Cash Flow Price to Cash Flow The ratio of a stock’s price to its cash flow per share. The price-to-cash flow ratio is an indicator of a stock’s valuation | 37.21 |
| ROA % ROA ROA is an indicator of how profitable a company is relative to its total assets. ROA gives an idea as to how efficient management is at using its assets to generate earnings. | 7.03 |
| Total |
Top Holdings
As of July 31, 2025
| Roblox Corp. | 3.89 |
| Royal Caribbean Group | 3.75 |
| Cencora, Inc. | 3.14 |
| Howmet Aerospace Inc. | 2.91 |
| Comfort Systems USA, Inc. | 2.87 |
| Vistra Corp. | 2.84 |
| Alnylam Pharmaceuticals, Inc | 2.39 |
| Axon Enterprise Inc | 2.32 |
| Verisk Analytics, Inc. | 2.32 |
| Cloudflare Inc | 2.16 |
| Total | #,###.2 |
Portfolio Composition
As of July 31, 2025
| EM Equity | 0.00 |
| Foreign Stocks | 5.08 |
| Cash | 0.76 |
| US Common Stocks | 94.16 |
| Total | #,###.2 |
Sector Weightings
As of July 31, 2025
| CONSUMER DISCRETIONARY | 21.50 |
| INDUSTRIALS | 20.68 |
| INFORMATION TECHNOLOGY | 16.50 |
| HEALTH CARE | 14.95 |
| FINANCIALS | 9.27 |
| COMMUNICATION SERVICES | 6.42 |
| CONSUMER STAPLES | 2.94 |
| UTILITIES | 2.84 |
| ENERGY | 2.61 |
| REAL ESTATE | 1.78 |
| MATERIALS | 0.50 |
| Total | #,###.2 |
Information provided is not a recommendation to buy or sell any security. Portfolio data is subject to daily change.
Distributions
No distributions paid in the last 12 months.
Income Dividend: Payout to shareholders of interest, dividends, or other income received by the Fund, net of operating expenses. By law, all such income must be distributed to shareholders, who may choose to take the money in cash or reinvest it in more shares of the Fund.
Short-Term Capital Gain: The profit realized from the sale of securities held for less than one year.
Long-Term Capital Gain: Gain on the sale of a security where the holding period was 12 months or more and the profit was subject to the long-term capital gains tax.
Investment Team
Portfolio Management Team
Voya Investments, LLC
Investment Adviser
Voya Investment Management Co. LLC
Investment Sub-Adviser
Kristy R Finnegan, CFA
Co-Head of Fundamental Research and Portfolio Manager
Years of Experience: 25
Years with Voya: 24
Leigh Todd, CFA
Senior Portfolio Manager, Large/Mid Cap Growth Equities
Years of Experience: 29
Years with Voya: 4
Disclosures
Principal Risks
All investing involves risks of fluctuating prices and the uncertainties of rates of return and yield inherent in investing. You could lose money on your investment and any of the following risks, among others, could affect investment performance. The following principal risks are presented in alphabetical order which does not imply order of importance or likelihood: Company; Currency; Derivative Instruments; Environmental, Social, and Governance (Equity); Foreign (Non-U.S.) Investments; Growth Investing; Investment Model; Liquidity; Market; Market Disruption and Geopolitical; Mid-Capitalization Company; Other Investment Companies; Real Estate Companies and Real Estate Investment Trusts; Securities Lending; Value Investing. Investors should consult the Portfolio’s Prospectus and Statement of Additional Information for a more detailed discussion of the Portfolio’s risks.
An investment in the Portfolio is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.
The fund discussed may be available to you as part of your employer sponsored retirement plan. There may be additional plan level fees resulting in personal performance that varies from stated performance. Please call your benefits office for more information.
Variable annuities and group annuities are long-term investments designed for retirement purposes. If withdrawals are taken prior to age 59½, an IRS 10% premature distribution penalty tax may apply. Money taken from the annuity will be taxed as ordinary income in the year the money is distributed. An annuity does not provide any additional tax deferral benefit, as tax deferral is provided by the plan. Annuities may be subject to additional fees and expenses to which other tax-qualified funding vehicles may not be subject. However, an annuity does provide other features and benefits, such as lifetime income payments and death benefits, which may be valuable to you. All guarantees are based on the financial strength and claims paying ability of the issuing insurance company, who is solely responsible for all obligations under its policies. Insurance products, annuities and funding agreements issued by Voya Retirement Insurance and Annuity Company (“VRIAC”), One Orange Way, Windsor, CT 06095, which is solely responsible for meeting its obligations. Plan administrative services provided by VRIAC or Voya Institutional Plan Services, LLC (“VIPS”). Securities distributed by or offered through Voya Financial Partners, LLC (“VFP”) (member SIPC) or other broker-dealers with which it has a selling agreement. Only Voya Retirement Insurance and Annuity Company is admitted and can issue products in the state of New York.