NEW YORK ( TheStreet) -- Shares of Sony ( SNE - Get Report) soared 6.05% to $14.37 on Friday after a Nikkei report said the electronics and entertainment producer plans to take a large stake in Olympus, which is still suffering from last year's accounting scandal.

Facebook ( FB - Get Report) continued to rally on Friday, after Nomura initiated coverage on the social network with a "buy" rating and a $40 price target.

Shares rose sharply -- 2.98% -- in Friday trade reaching $32.79. The social network has climbed almost 9.5% since Monday.

Citigroup ( C) maintained its "buy" rating of Google ( GOOG - Get Report) on Friday morning, but lowered its price target from $750 to $740, reflecting potential effects of macro uncertainty and currency weakness.

At its annual shareholders meeting on Thursday, Google defended its $12.5 billion acquisition of Motorola Mobility saying it was about more than simply gaining access to mobile phone marker's broad portfolio of patents, according to The Wall Street Journal. "We bought Motorola for the sum of patents, products and people," Executive Chairman, Eric Schmidt, reportedly said at the meeting.

Despite Citi's concerns, the search-engine giant gained .29% to $566.84 on Friday.

Shares of Research In Motion ( RIMM) tumbled by 1.74% to $9.90 on Friday as investors anticipate disappointing first-quarter earnings.

Analysts polled by Thomson Reuters expect Research In Motion to earn 1 cent per share on $3.149 billion in revenue. Earnings will be released Thursday, June 28, after the close of trading.

--Written by Nathalie Pierrepont in New York.

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