There are several stocks trading more heavily than usual this morning, and also experiencing large gains or drops in share prices. These include Ku6 Media Co. Ltd. (NASDAQ: KUTV), Convio Inc. (NASDAQ: CNVO), Provident Energy Ltd. (NYSE: PVX), Kinross Gold Corp. (NYSE: KGC), and Carnival Corp. (NYSE: CCL).

After the first half hour of trading, Ku6 Media is up nearly 98% at $2.73. Volume is already more than 15x the daily average. The Chinese online video company has signed an agreement with Google Inc. (NASDAQ: GOOG) to offer international viewers a Chinese video channel on YouTube.

Convio is up more than 48% at $15.90 after setting a 52-week high of $15.91. Volume is already 10x the daily average. The provider of software to non-profit organizations has agreed to be acquired by Blackbaud Inc. (NASDAQ: BLKB) for $16/share, or about $312 million.

Provident Energy is up nearly 22% at $11.35 after posting a new 52-week high of $15.42. Volume is double the daily average already. The processor of natural gas liquids (NGLs) is being acquired by Pembina Pipeline Corp. for about $3.1 billion in stock.

Kinross Gold is down more than -16% at $10.57 after posting a new 52-week low of $10.44 earlier. Volume is already nearly equal to the daily average. The gold mining company has said that it expects production to be flat in 2012, while costs will rise 12%-19%, and the company will also writedown goodwill at one of its mines.

Carnival is down nearly -14% at $29.53. Volume is already nearly triple the daily average. The cruise ship operator is sinking following the disaster off the Italian coast that has left 11 dead and 29 missing. We have more coverage here.

Paul Ausick

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