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Cover
Feb. 28, 2025
Document Type 8-K
Amendment Flag false
Document Period End Date Feb. 28, 2025
Current Fiscal Year End Date --12-31
Entity File Number 811-21969
Entity Registrant Name The GDL Fund
Entity Central Index Key 0001378701
Entity Tax Identification Number 20-8195443
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One One Corporate Center
Entity Address, City or Town Rye
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10580-1422
City Area Code 800
Local Phone Number 422-3554
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Shares of Beneficial Interest  
Title of 12(b) Security Common Shares of Beneficial Interest
Trading Symbol GDL
Security Exchange Name NYSE
Series C Cumulative Puttable and Callable Preferred Shares  
Title of 12(b) Security Series C Cumulative Puttable and Callable Preferred Shares
Trading Symbol GDL Pr C
Security Exchange Name NYSE