** Insurance broker Willis Towers Watson's WTW.O shares up 2.1% at $335.13

** UBS upgrades its rating on WTW to "buy" from "neutral"; raises PT to $395 from $344, a 20.3% upside to stock's last close

** Brokerage expects WTW valuation to close the gap with peers as it scales its corporate risk and broking segment, and improves its operating margin

** Says it favors insurance brokers in 2025 as they have resilient business models during an economic downturn

** Fourteen of 21 brokerages rate the stock "buy" or higher, six "hold" and one "sell"; median PT is $370 - data compiled by LSEG

** WTW stock up 7% YTD

(Reporting by Arasu Kannagi Basil in Bengaluru)

((ArasuKannagi.Basil@thomsonreuters.com;))