v3.26.3
Cover
Sep. 28, 2026
Document Type 8-K
Amendment Flag false
Document Period End Date Sep. 28, 2026
Entity File Number 001-43370
Entity Registrant Name Futurewave Acquisition Corporation
Entity Central Index Key 0002116105
Entity Tax Identification Number 00-0000000
Entity Incorporation, State or Country Code E9
Entity Address, Address Line One 1185 Avenue of the Americas
Entity Address, Address Line Two Suite 349
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10036
City Area Code (212)
Local Phone Number 574-4425
Written Communications true
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Units, each consisting of one ordinary share, one right entitling the holder to receive one-fourth (1/4) of one ordinary share, and one warrant  
Title of 12(b) Security Units, each consisting of one ordinary share, one right entitling the holder to receive one-fourth (1/4) of one ordinary share, and one warrant
Trading Symbol FWACU
Security Exchange Name NASDAQ
Ordinary Shares, $0.0001 par value  
Title of 12(b) Security Ordinary Shares, $0.0001 par value
Trading Symbol FWAC
Security Exchange Name NASDAQ
Rights to receive one-fourth (1/4) of one ordinary share  
Title of 12(b) Security Rights, each entitling the holder to receive one-fourth (1/4) of one ordinary share
Trading Symbol FWACR
Security Exchange Name NASDAQ
Warrants, each exercisable for one share at an exercise price of $11.50 per share  
Title of 12(b) Security Warrants, each exercisable for one share at an exercise price of $11.50 per share
Trading Symbol FWACW
Security Exchange Name NASDAQ