** Shares of Acadia Pharmaceuticals ACAD.O up 9.35% at $18.25 in extended trading
** S&P Dow Jones Indices after market close on Monday said Acadia Pharmaceuticals will replace Independent Bank Group IBTX.O in S&P Smallcap 600
** 13 of 19 brokerages rate ACAD "buy" or higher, 5 "hold" and one "sell"; their median PT is $26 - LSEG data
** Including session moves, ACAD down 47% YTD
(Reporting by Anshuman Tripathy)
((Anshuman.Tripathy@thomsonreuters.com))