** Shares of Australia's Rhythm Biosciences RHY.AX jump 38.6% to A$0.115, set for best day since August 6 if gains hold
** Stock at highest since October 15
** Cancer diagnostics tech firm commences commercialisation of its flagship blood-based colorectal cancer test - ColoSTAT
** YTD shares up 32.2%
(Reporting by Shruti Agarwal in Bengaluru)
((Shruti.Agarwal@thomsonreuters.com))