# THE ARBITRAGE FUND — new fund registration

ARBITRAGE FUNDS registered fund series on Form 485APOS, filed 2019-08-01. Featured series: THE ARBITRAGE FUND.

## Registration

- Registrant / trust: ARBITRAGE FUNDS
- CIK: 0001105076
- Form: 485APOS
- Filed: 2019-08-01
- State of incorporation: DE
- Accession: 0001104659-19-043296
- Reported net assets: $845.0M

## Series & classes (14)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [THE ARBITRAGE FUND](https://search.stillhousedata.com/fund/S000006440) | Class R | ARBFX | — |
| [THE ARBITRAGE FUND](https://search.stillhousedata.com/fund/S000006440) | Class I | ARBNX | — |
| [THE ARBITRAGE FUND](https://search.stillhousedata.com/fund/S000006440) | Class C | ARBCX | — |
| [THE ARBITRAGE FUND](https://search.stillhousedata.com/fund/S000006440) | Class A | ARGAX | — |
| [WATER ISLAND DIVERSIFIED EVENT-DRIVEN FUND](https://search.stillhousedata.com/fund/S000030113) | Class R | AEDFX | — |
| [WATER ISLAND DIVERSIFIED EVENT-DRIVEN FUND](https://search.stillhousedata.com/fund/S000030113) | Class I | AEDNX | — |
| [WATER ISLAND DIVERSIFIED EVENT-DRIVEN FUND](https://search.stillhousedata.com/fund/S000030113) | Class C | AEFCX | — |
| [WATER ISLAND DIVERSIFIED EVENT-DRIVEN FUND](https://search.stillhousedata.com/fund/S000030113) | Class A | AGEAX | — |
| [THE WATER ISLAND CREDIT OPPORTUNITIES FUND](https://search.stillhousedata.com/fund/S000039281) | Class R | ARCFX | — |
| [THE WATER ISLAND CREDIT OPPORTUNITIES FUND](https://search.stillhousedata.com/fund/S000039281) | Class I | ACFIX | — |
| [THE WATER ISLAND CREDIT OPPORTUNITIES FUND](https://search.stillhousedata.com/fund/S000039281) | Class C | ARCCX | — |
| [THE WATER ISLAND CREDIT OPPORTUNITIES FUND](https://search.stillhousedata.com/fund/S000039281) | Class A | AGCAX | — |
| [Water Island Long/Short Fund (formerly, The Arbitrage Tactical Equity Fund)](https://search.stillhousedata.com/fund/S000047725) | Class R | ATQFX | — |
| [Water Island Long/Short Fund (formerly, The Arbitrage Tactical Equity Fund)](https://search.stillhousedata.com/fund/S000047725) | Class I | ATQIX | — |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.25%
- Gross expense ratio: 1.71%
- Management fee: 1.10%
- Other expenses: 0.26%

## Investment objective

The Fund seeks to achieve capital growth by engaging in merger arbitrage.

## Advisers

- [Water Island Capital, LLC (Advisor)](https://search.stillhousedata.com/firm/113358)

## Other filings by this registrant (14)

- [485APOS — 2026-06-24](https://search.stillhousedata.com/launch/0001104659-26-077283)
- [485APOS — 2026-06-18 (2 new series)](https://search.stillhousedata.com/launch/0001104659-26-075497)
- [485APOS — 2020-07-31](https://search.stillhousedata.com/launch/0001104659-20-088930)
- [485APOS — 2018-08-01](https://search.stillhousedata.com/launch/0001104659-18-048783)
- [485APOS — 2017-02-02](https://search.stillhousedata.com/launch/0001104659-17-006177)
- [485APOS — 2014-10-08 (4 new series)](https://search.stillhousedata.com/launch/0001398344-14-005222)
- [485APOS — 2013-04-01](https://search.stillhousedata.com/launch/0001193125-13-136850)
- [485APOS — 2012-09-27 (3 new series)](https://search.stillhousedata.com/launch/0001193125-12-406814)
- [485APOS — 2012-07-18](https://search.stillhousedata.com/launch/0001193125-12-306241)
- [485APOS — 2012-03-30](https://search.stillhousedata.com/launch/0001193125-12-142968)
- [485APOS — 2010-07-16 (2 new series)](https://search.stillhousedata.com/launch/0001135428-10-000260)
- [485APOS — 2009-07-30](https://search.stillhousedata.com/launch/0000897069-09-001232)

## More

- [Registrant profile: ARBITRAGE FUNDS](https://search.stillhousedata.com/registrant/1105076)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001104659-19-043296.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.