HEADLINE STOCKS-Some U.S. stocks on the move on July 2

(Updates to after the open, adds Xilinx, Walgreen, FCStone/International Assets Holding)

NEW YORK, July 2 (Reuters) - Some U.S. stocks on the move on Friday:

ELAN CORP (ELN.N)

JOHNSON & JOHNSON (JNJ.N)

J&J will take over most of Elan's Alzheimer's research and invest $1 billion in new Elan equity in exchange for an 18.4 percent stake in the drugmaker. [ID:nL2891369]

U.S.-listed shares of Elan surged 17 percent to $8.20 while J&J, a Dow component, was down 0.9 percent to $56.58.

EXELON CORP (EXC.N)

NRG ENERGY INC (NRG.N)

Exelon raised its hostile takeover bid for NRG to $7.45 billion, citing newly identified cost savings and NRG'sjn recent acquisition of Reliant Energy's retail business. [ID:nBNG512453]

Shares of Exelon fell 1.5 percent to $50.79 while NRG fell 3.7 percent to $25.08 after rising in premarket.

FCSTONE GROUP INC FCSX.O

INTERNATIONAL ASSETS HOLDING CORP (IAAC.O)

International Assets agreed to buy FCStone in an all-stock deal valued at about $130 million. [ID:nBNG513528]

Shares of FCStone rose 1.2 percent to $4.20 while International Assets fell 9.6 percent to $14.22.

WALGREEN CO (WAG.N)

Shares of the drug store chain fell 1.1 percent to $29.01 after it reported its June sales data. [ID:nN02514194]