Shareholder Report
|
6 Months Ended |
|
Jun. 30, 2025
USD ($)
Holding
|
|---|
| Shareholder Report [Line Items] |
|
| Document Type |
N-CSRS
|
| Amendment Flag |
false
|
| Registrant Name |
MERGER FUND
|
| Entity Central Index Key |
0000701804
|
| Entity Investment Company Type |
N-1A
|
| Document Period End Date |
Jun. 30, 2025
|
| C000014124 [Member] |
|
| Shareholder Report [Line Items] |
|
| Fund Name |
The Merger Fund®
|
| Class Name |
Class A
|
| Trading Symbol |
MERFX
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Merger Fund® (“Fund”) for the period of January 1, 2025 to June 30, 2025.
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
|
| Additional Information Phone Number |
1‑800‑243‑1574
|
| Additional Information Website |
https://www.virtus.com/investor-resources/mutual-fund-documents
|
| Expenses [Text Block] |
What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment)
| Fund (Class) |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
The Merger Fund®
Class A / MERFX |
$75 |
1.47% |
|
| Expenses Paid, Amount |
$ 75
|
| Expense Ratio, Percent |
1.47%
|
| Net Assets |
$ 2,356,671,000
|
| Holdings Count | Holding |
347
|
| Investment Company Portfolio Turnover |
63.00%
|
| Additional Fund Statistics [Text Block] |
KEY FUND STATISTICS (as of June 30, 2025)
| Fund net assets (‘000s) |
$2,356,671 |
| Total number of portfolio holdings |
347 |
| Portfolio turnover rate as of the end of the reporting period |
63% |
|
| Holdings [Text Block] |
DEAL COMPOSITION
| Type of Buyer |
|
| Strategic |
85.6% |
| Financial |
14.4% |
| By Deal Type |
|
| Friendly |
100.0% |
| Deal Terms* |
|
| Cash |
68.1% |
| Stock with Fixed Exchange Ratio |
22.7% |
| Undetermined |
4.5% |
| Cash and Stock |
4.2% |
| Stock with Fixed Exchange Ratio (Collar) |
0.5% |
| * |
Data expressed as a percentage of long common stock, corporate bonds and swap contract positions as of June 30, 2025. | Asset Allocation(1)
| Financials |
46% |
| Communication Services |
19% |
| Energy |
15% |
| Consumer Staples |
6% |
| Industrials |
5% |
| Consumer Discretionary |
5% |
| Information Technology |
2% |
| Health Care |
1% |
| Materials |
1% |
| Total |
100% |
| (1) |
Percentage of total investments as of June 30, 2025. |
|
| C000129310 [Member] |
|
| Shareholder Report [Line Items] |
|
| Fund Name |
The Merger Fund®
|
| Class Name |
Class I
|
| Trading Symbol |
MERIX
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Merger Fund® (“Fund”) for the period of January 1, 2025 to June 30, 2025.
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
|
| Additional Information Phone Number |
1‑800‑243‑1574
|
| Additional Information Website |
https://www.virtus.com/investor-resources/mutual-fund-documents
|
| Expenses [Text Block] |
What were the Fund costs for the last six months? (Based on a hypothetical $10,000 investment)
| Fund (Class) |
Costs of a $10,000 investment |
Costs paid as a percentage of a $10,000 investment |
The Merger Fund®
Class I / MERIX |
$60 |
1.18% |
|
| Expenses Paid, Amount |
$ 60
|
| Expense Ratio, Percent |
1.18%
|
| Net Assets |
$ 2,356,671,000
|
| Holdings Count | Holding |
347
|
| Investment Company Portfolio Turnover |
63.00%
|
| Additional Fund Statistics [Text Block] |
KEY FUND STATISTICS (as of June 30, 2025)
| Fund net assets (‘000s) |
$2,356,671 |
| Total number of portfolio holdings |
347 |
| Portfolio turnover rate as of the end of the reporting period |
63% |
|
| Holdings [Text Block] |
DEAL COMPOSITION
| Type of Buyer |
|
| Strategic |
85.6% |
| Financial |
14.4% |
| By Deal Type |
|
| Friendly |
100.0% |
| Deal Terms* |
|
| Cash |
68.1% |
| Stock with Fixed Exchange Ratio |
22.7% |
| Undetermined |
4.5% |
| Cash and Stock |
4.2% |
| Stock with Fixed Exchange Ratio (Collar) |
0.5% |
| * |
Data expressed as a percentage of long common stock, corporate bonds and swap contract positions as of June 30, 2025. | Asset Allocation(1)
| Financials |
46% |
| Communication Services |
19% |
| Energy |
15% |
| Consumer Staples |
6% |
| Industrials |
5% |
| Consumer Discretionary |
5% |
| Information Technology |
2% |
| Health Care |
1% |
| Materials |
1% |
| Total |
100% |
| (1) |
Percentage of total investments as of June 30, 2025. |
|