AGIRX — Alger MidCap Growth Institutional Fund, Class R
Data updated: 2026-09-25
AGIRX — Alger MidCap Growth Institutional Fund, Class R. 1.87% expense ratio · since 1993. Holdings, fees, performance and SEC filings.
AGIRX Fund Overview
AGIRX — Alger MidCap Growth Institutional Fund, Class R is a US mutual fund managed by Alger Institutional Funds, 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 Institutional Funds
- Category: United States Mid Cap Growth Equity
- Assets under management: $56.06M
- 1-year return: 24.0%
- Ticker: AGIRX
- SEC CIK: 0000911415
- SEC series ID: S000009203
- Share class ID: C000025003
AGIRX Investment Objective and Strategy
Alger MidCap Growth Institutional Fund describes its objective and strategy as follows, from its latest prospectus filed with the SEC by Alger Institutional Funds.
Investment objective
Alger Mid Cap Growth Institutional Fund seeks long-term capital appreciation.
Principal investment strategy
Fred Alger Management, Inc. believes companies undergoing Positive Dynamic Change offer the best investment 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, significantly growing demand or market dominance. Positive Lifecycle Change companies are, for example, companies benefitting from regulatory change, a new product introduction or management change. The Fund focuses on mid-sized companies that Fred Alger Management, Inc. believes demonstrate promising growth potential. Under normal circumstances, the Fund 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, as reported by the indexes as of the most recent quarter-end.
Both indexes are designed to track the performance of medium-capitalization stocks. At December 31, 2017, the market capitalization of the companies in these indexes ranged from $626.1 million to $36.7 billion. Equity securities include common or preferred stocks that are listed on U.S. or foreign exchanges. The Fund may invest a significant portion of its assets in securities of companies conducting business within a single sector, including the information technology, healthcare, consumer discretionary, and industrials sectors. The Fund's portfolio manager(s) 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 Fund may engage in active trading of portfolio securities. The Fund can invest in foreign securities.
AGIRX Holdings
Top 10 holdings of Alger MidCap Growth Institutional Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Cloudflare, Inc. | 3.89% |
| Gfl Environmental, Inc. | 3.15% |
| Snowflake, Inc. | 2.90% |
| Comfort Systems USA, Inc. | 2.88% |
| Rbc Bearings, Inc. | 2.82% |
| Viking Holdings Ltd. | 2.71% |
| Repligen Corp. | 2.47% |
| West Pharmaceutical Services, Inc. | 2.38% |
| Natera, Inc. | 2.38% |
| Spotify Technology SA | 2.35% |
AGIRX Portfolio Allocation
Asset-class allocation of Alger MidCap Growth Institutional Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 100.0% |
| Cash & Equivalents | 0.2% |
AGIRX Performance
Total returns for AGIRX (as of 2026-10-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | -0.61% |
| 1 year | 23.97% |
| 3 years (annualised) | 11.35% |
| 5 years (annualised) | 6.60% |
AGIRX Risk Information
Risk metrics for AGIRX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 16.81%
AGIRX Costs and Fees
AGIRX costs about $187 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.87%
- Gross expense ratio: 1.87%
- Portfolio turnover: 91%
- Brokerage commissions: 7.57 bps of average net assets (SEC N-CEN)
AGIRX Cashflows
Over the 12 months to 2026-04, Alger MidCap Growth Institutional Fund had net outflows of $8.20M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-04 | −$13.41K |
| 2026-03 | −$417.17K |
| 2026-02 | −$476.41K |
| 2026-01 | −$110.19K |
| 2025-12 | −$4.25M |
| 2025-11 | −$318.06K |
AGIRX Debt Constituents
No individual debt constituents are reported in Alger MidCap Growth Institutional Fund's latest SEC N-PORT filing.
AGIRX Prospectus and SEC Filings
Official Alger MidCap Growth Institutional Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2026-02-27
- Prospectus supplement (497) — filed 2026-05-20
- Prospectus supplement (497) — filed 2025-03-04
- Portfolio holdings (N-PORT) — filed 2026-09-25
- Portfolio holdings (N-PORT) — filed 2026-06-26
- Portfolio holdings (N-PORT) — filed 2026-03-27
- Annual census (N-CEN) — filed 2026-01-14
- Annual census (N-CEN) — filed 2025-01-13
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.