** Shares of Horizon Minerals HRZ.AX fall as much as 22.2%
to A$0.049, set for their worst day since Sept. 20, 2011, if
losses hold
** Gold miner says it has entered into an agreement to
acquire nickel explorer Poseidon Nickel POS.AX
** Says under the proposed deal Poseidon shareholders will
receive 0.1156 shares of co for every Poseidon share held
** Co says it will raise A$14 mln($9.29 mln) via share
placement at A$0.045 per share, representing a discount of 28.6%
as of last close
** Stock hits its lowest level since Oct. 4
** Around 7.8 mln shares change hands, 7x the 30-day avg
** Stock down 28.6% YTD, including current session's moves
($1 = 1.5076 Australian dollars)
(Reporting by Kumar Tanishk in Bengaluru)
((Tanishk.Kumar@thomsonreuters.com;))