WTW rises after boosting share repurchase program by $1.5 billion

** Insurance broker WTW's WTW shares rise 2.4% to $339.64

** WTW late Thursday announced a $1.5 billion increase to its existing share repurchase program

** Move adds to the nearly $200 million remaining on the current open-ended repurchase authority

** WTW authorized to repurchase shares by way of redemption or otherwise

** 14 of 22 brokerages rate the stock "buy" or higher, 7 "hold" and 1 "sell"; median PT $369 - data compiled by LSEG

** As of last close, WTW shares up 6% YTD