** Investment company Arborgen Holdings Ltd ARB.NZ extends
gains for a second straight session; rise as much as 9.4% to
NZ$0.290
** Co starts strategic review to consider options that
include potential sale of all shares in Arborgen, or potential
sale of all or some assets of co or a U.S. listing
** Co on Wednesday said conditional buyout offer it received
from a third party materially undervalues the co urn:newsml:reuters.com:*:nFWN2OB0R9
** Stock is top performer on New Zealand's S&P NZX All
Capital Index .NZCI
** ARB up 62.6% this year, as of last close
(Reporting by Aditya Munjuluru in Bengaluru)
((aditya.srivastsav@thomsonreuters.com))