UBS initiates coverage of Life Sciences and Diagnostics Tools sector. UBS analyst Daniel Brennan initiated coverage of the Life Sciences and Diagnostics Tools sector. He said demand is accelerating across his universe but valuations are extended. He expects strong fundamentals to continue into 2019 but he said selectivity is the key. In the group, his Buy ratings include Exact Sciences (EXAS), Iqvia (IQV), NanoString (NSTG), Syneos Health (SYNH) and Thermo Fisher (TMO).