In　this　study,　the　variations　in　compressive　mechanical　properties　of　a　variety　of　Zr-based　bulk　metallic　glasses　(BMGs)　were　analyzed.　Systematic　changes　in　composition　were　employed　to　modify　the　compressive　malleability　of　the　Zr-based　BMGs.　The　enhancement　on　the　malleability　of　investigated　Zr-based　BMGs　could　be　correlated　with　the　variations　in　Poisson＇s　ratio.　Two-parameter　Weibull　statistical　analysis　was　performed　on　their　compressive　strengths　over　a　statistically　significant　number　of　specimens.　High　compressive　strength　reliability　demonstrated　by　its　high　uniformity　in　strength　was　found　on　the　Zr-based　BMGs.　Malleable　Z4　(Zr66Al9Ni8.3Cu16.7)　BMG　showed　a　higher　Weibull　modulus　(m = 71)　as　compared　with　the　less　malleable　Z1　(Zr53Al16Co23.25Ag7.75)　BMG　(m = 38),　implying　a　more　uniform　distribution　of　compressive　failure　strength　and　a　higher　reliability.　The　correlation　of　m　with　the　intrinsic　malleability　of　Zr-based　BMGs　was　discussed　by　the　variations　in　the　Poisson＇s　ratio,　the　shear　modulus　or　the　glass　transition　temperature.　©　2015　Elsevier　B.V.