Alger Mid Cap Growth Portfolio
Data updated: 2026-08-27
C000025031 — Alger Mid Cap Growth Portfolio. United States Mid Cap Growth Equity · $167.14M AUM. Holdings, fees, performance and SEC filings.
C000025031 Fund Overview
Alger Mid Cap Growth Portfolio is a US mutual fund managed by Alger Portfolios, categorised as United States Mid 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: Alger Portfolios
- Category: United States Mid Cap Growth Equity
- Assets under management: $167.14M
- 1-year return: -0.1%
- SEC CIK: 0000832566
- SEC series ID: S000009218
- Share class ID: C000025031
C000025031 Investment Objective and Strategy
Alger Mid Cap Growth Portfolio describes its objective and strategy as follows, from its latest prospectus filed with the SEC by Alger Portfolios.
Investment objective
Alger Mid Cap Growth Portfolio seeks long-term capital appreciation.
Principal investment strategy
The Manager believes companies undergoing Positive Dynamic Change offer the best opportunities. Positive Dynamic Change refers to companies realizing High Unit Volume Growth or companies undergoing Positive Lifecycle Change. High Unit Volume Growth companies are traditional growth companies experiencing, for example, rapidly growing demand or market dominance. Positive Lifecycle Change companies are, for example, companies benefitting from new regulations, a new product innovation or new management. The Portfolio focuses on mid-sized companies that the Manager believes demonstrate promising growth potential. Under normal circumstances, the Portfolio invests at least 80% of its net assets in equity securities of companies that, at the time of purchase of the securities, have total market capitalization within the range of companies included in the Russell Midcap Growth Index or the S&P MidCap 400 Index.
Both indexes are designed to track the performance of medium-capitalization stocks. At December 31, 2025, the market capitalization of the companies in these indexes ranged from $1.03 billion to $101.64 billion. Because of the Portfolios long-term approach to investing, it could have a significant portion of its assets invested in securities of issuers that have appreciated beyond the market capitalization thresholds noted. Equity securities include common or preferred stocks that are listed on U.S. or foreign exchanges. The Portfolio may invest a significant portion of its assets in securities of companies conducting business within a single sector, as defined by third party sources, including, but not limited to, the information technology, health care, consumer discretionary, financials, and industrials sectors.
For the purpose of categorizing companies, sectors are a broader category than industries and industries comprise sectors. The Portfolio may sell a stock when it reaches a target price, it fails to perform as expected, or other opportunities appear more attractive. As a result, the Portfolio may engage in active trading of portfolio securities. The Portfolio can invest in foreign securities. The Portfolio may invest in cash (and cash equivalents) when the Portfolio is unable to find enough attractive long-term investments to meet its investment objective, to meet redemptions and/or when the Manager believes it is advisable to do so during times of short-term market volatility. During these times, cash (and cash equivalents) will not exceed 15% of the Portfolios net assets.
C000025031 Holdings
Top 10 holdings of Alger Mid Cap Growth Portfolio by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Rbc Bearings, Inc. | 3.62% |
| Comfort Systems USA, Inc. | 3.48% |
| Cloudflare, Inc. | 3.48% |
| Vertiv Holdings Company | 3.22% |
| Astera Labs, Inc. | 3.02% |
| West Pharmaceutical Services, Inc. | 2.76% |
| Ftai Aviation Ltd. | 2.69% |
| Western Digital Corp. | 2.58% |
| Gfl Environmental, Inc. | 2.43% |
| Robinhood Markets, Inc. | 2.42% |
C000025031 Portfolio Allocation
Asset-class allocation of Alger Mid Cap Growth Portfolio by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 96.8% |
| Cash & Equivalents | 1.9% |
C000025031 Performance
Total returns for C000025031 (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| 1 year | -0.1% |
| 3 years (annualised) | 0.2% |
C000025031 Risk Information
Risk metrics for C000025031, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 0.2%
C000025031 Costs and Fees
C000025031 costs about $117 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.17%
- Gross expense ratio: 1.19%
- Portfolio turnover: 88%
- Brokerage commissions: 7.34 bps of average net assets (SEC N-CEN)
C000025031 Cashflows
Over the 12 months to 2026-06, Alger Mid Cap Growth Portfolio had net outflows of $13.68M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$328.46K |
| 2026-05 | −$590.47K |
| 2026-04 | −$1.03M |
| 2026-03 | −$1.02M |
| 2026-02 | −$1.00M |
| 2026-01 | −$1.09M |
C000025031 Debt Constituents
No individual debt constituents are reported in Alger Mid Cap Growth Portfolio's latest SEC N-PORT filing.
C000025031 Prospectus and SEC Filings
Official Alger Mid Cap Growth Portfolio filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-04-22
- Prospectus (485BPOS) — filed 2025-04-22
- Prospectus (485BPOS) — filed 2024-04-12
- Portfolio holdings (N-PORT) — filed 2026-08-27
- Portfolio holdings (N-PORT) — filed 2026-05-28
- Portfolio holdings (N-PORT) — filed 2026-02-26
- Annual census (N-CEN) — filed 2026-03-13
- Annual census (N-CEN) — filed 2025-03-14
Related Funds
Other United States Mid 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.