Abstract: The present invention provides isolated monoclonal antibodies, particularly human antibodies, that bind to CD32 with high affinity and have particular functional properties, such as inhibiting ligand binding, down-modulating surface expression of CD32 or specifically binding to the Fc?RIIa-H131 allotype but not the Fc?RIIa-R131 allotype. Nucleic acid molecules encoding the antibodies of the invention, expression vectors, host cells and methods for expressing the antibodies of the invention are also provided. Immunoconjugates, bispecific molecules, vaccine conjugates and pharmaceutical compositions comprising the antibodies of the invention are also provided. The invention also provides methods for detecting CD32, in particular for detecting the Fc?RIIa-H131 allotype, methods of treatment using the antibodies of the invention, such as methods for treating autoimmune hemolytic anemia, and methods for enhancing antigen presentation using the antibodies of the invention.