NdBiPt is a member of a new class of ternary intermetallic semiconductors and semimetals. These materials are covalently bonded crystals with band gaps expected to be in the range of 0–1 eV. Longitudinal resistivity, Hall resistivity, and thermoelectric power measurements reveal that in NdBiPt the ‘‘gap’’ is an overlap that gives rise to a semimetallic behavior exhibiting high hole and electron mobilities.