** Argus Research raises PT on insurer Chubb CB.BN to $360 from $308, implying a 9.3% upside to the stock's last close
** Says retention rates remain high, margins are
improving, and the company is seeing growth in its overseas operations
** In June 2023, Berkshire Hathaway announced it had taken a 6.4% stake in CB and recent filings showed an additional purchase of 2.9 million shares in 4Q25, brokerage says
** CB is now the eighth-largest holding in Berkshire's portfolio, and Berkshire is now the fourth-largest shareholder of CB's outstanding shares - Argus
** 11 of 26 analysts rate stock "strong buy" or "buy", 13 "hold" and 2 "sell" or "strong sell"; their median PT is $337.50- data compiled by LSEG
** As of last close, CB up 5.4% YTD
(Reporting by Pragyan Kalita in Bengaluru)
((Pragyan.Kalita@thomsonreuters.com;))