Stocks that moved substantially or traded heavily Monday on the New York Stock Exchange and Nasdaq Stock Market:
Youku Inc., up $6.84 at $31.85
The Chinese video website and its rival Tudou Holdings Ltd. said they plan to merge in hopes of creating a dominant competitor.
Harley-Davidson Inc., up $1.23 at $48.11
A Citi analyst raised his price target on the motorcycle maker's stock by $4 to $50 a share. He expects higher motorcycle sales in the first quarter.
Zoll Medical Corp., up $17.84 at $92.94
Japanese chemical manufacturer Asahi Kasei agreed to buy the defibrillator maker for about $2.1 billion.
Pacific Capital Bancorp, up $16.34 at $45.03
UnionBanCal Corp., part of Japan's Mitsubishi UFJ Financial Group, is buying the California bank holding company for $1.51 billion.
Anthera Pharmaceuticals Inc., down $2.86 at $3.56
The biopharmaceutical company said last week that it canceled a clinical study for its heart drug VISTA-16 because it didn't work.
FuelCell Energy Inc., up 11 cents at $1.61
The alternative energy producer posted a narrower first-quarter loss, and its biggest shareholder increased its stake.
Cumulus Media Inc. , down 28 cents at $3.21
The radio station owner posted a quarterly loss, blaming the costs of recent acquisitions and a drop in political ads.
Rockwell Medical Technologies Inc., up 77 cents at $9.74
A Stifel Nicolaus analyst gave the biopharmaceutical company's stock a "Buy" rating based on its promising kidney treatment.