KLGBX — MainStay MacKay Growth Fund
Data updated: 2026-09-23
KLGBX — MainStay MacKay Growth Fund. United States Large Cap Growth Equity · $981.01M AUM · 2.07% expense ratio. Holdings, fees, performance and SEC filings.
KLGBX Fund Overview
KLGBX — MainStay MacKay Growth Fund is a US mutual fund managed by New York Life Investments Funds Trust, categorised as United States Large Cap Growth Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: New York Life Investments Funds Trust
- Category: United States Large Cap Growth Equity
- Assets under management: $981.01M
- 1-year return: 24.3%
- Ticker: KLGBX
- SEC CIK: 0001469192
- SEC series ID: S000039358
- Share class ID: C000121294
KLGBX Investment Objective and Strategy
MainStay MacKay Growth Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by New York Life Investments Funds Trust.
Investment objective
The Fund seeks long-term growth of capital.
Principal investment strategy
The Fund normally invests at least 80% of its assets in common stocks of large capitalization growth companies with market capitalizations that, at the time of investment, are similar to companies in the Russell 1000 Growth Index (which ranged from $653.7 million to $867.5 billion as of December 31, 2017). Investment Process: Using an objective, disciplined and broadly-applied process, MacKay Shields LLC, the Fund's Subadvisor, selects large capitalization securities that it believes have the most potential to appreciate, while seeking to limit exposure to risk. The Subadvisor also seeks to control the Fund's exposure to risk by seeking to construct a broadly-diversified portfolio of securities issued by companies, across sectors and industries using quantitative analysis to identify undervalued securities.
The Subadvisor uses a quantitative model that is designed to evaluate individual issuers and securities across multiple criteria, including valuation, momentum and market sentiment. The Subadvisor also conducts a qualitative review of the results of the quantitative analysis. In certain cases, the Subadvisor may deviate from positions or weightings suggested by the quantitative analysis to account for events and conditions that may not be quantifiable by the analysis, such as company-specific and market events. The Subadvisor evaluates the quantitative model and, from time to time, the Subadvisor may adjust the metrics and data underlying its quantitative analysis or model for a variety of reasons, including, without limitation, to account for changing market, financial or economic conditions.
The Subadvisor may sell a security if, among other reasons, it no longer believes the security will contribute to meeting the investment objective of the Fund, if better opportunities are identified, or if it determines the initial investment expectations are not being met.
KLGBX Holdings
Top 10 holdings of MainStay MacKay Growth Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| NVIDIA Corp. | 12.37% |
| Alphabet, Inc. | 11.29% |
| Apple, Inc. | 5.42% |
| Broadcom, Inc. | 5.20% |
| Microsoft Corp. | 4.67% |
| Eli Lilly & Co. | 4.52% |
| Mastercard, Inc. | 3.14% |
| Meta Platforms, Inc. | 3.10% |
| GE Aerospace | 2.27% |
| Micron Technology, Inc. | 2.13% |
KLGBX Portfolio Allocation
Asset-class allocation of MainStay MacKay Growth Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.7% |
| Cash & Equivalents | 0.5% |
KLGBX Performance
Total returns for KLGBX (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| 1 year | 24.3% |
| 3 years (annualised) | 8.4% |
| 5 years (annualised) | 11.9% |
KLGBX Risk Information
Risk metrics for KLGBX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 11.8%
KLGBX Costs and Fees
KLGBX costs about $207 per $10,000 invested per year in fund expenses.
- Net expense ratio: 2.07%
- Gross expense ratio: 2.25%
- Portfolio turnover: 38%
- Brokerage commissions: 0.88 bps of average net assets (SEC N-CEN)
KLGBX Cashflows
Over the 12 months to 2026-04, MainStay MacKay Growth Fund had net inflows of $14.21M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$7.89M |
| 2026-03 | −$4.10M |
| 2026-02 | $8.55M |
| 2026-01 | −$6.07M |
| 2025-12 | $11.61M |
| 2025-11 | $8.78M |
KLGBX Debt Constituents
No individual debt constituents are reported in MainStay MacKay Growth Fund's latest SEC N-PORT filing.
KLGBX Prospectus and SEC Filings
Official MainStay MacKay Growth Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-02-26
- Prospectus (485BPOS) — filed 2025-02-25
- Prospectus supplement (497) — filed 2025-02-28
- Portfolio holdings (N-PORT) — filed 2026-09-23
- Portfolio holdings (N-PORT) — filed 2026-06-25
- Portfolio holdings (N-PORT) — filed 2026-03-26
- Annual census (N-CEN) — filed 2026-01-13
- Annual census (N-CEN) — filed 2025-01-13
Related Funds
Other United States Large Cap Growth Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.