Cliffs Natural Resources, Nokia Corporation, Youku Tudou Inc., HSBC Holdings Plc, Rio Tinto Plc, Barclays Plc, Allot Communications Ltd, Randgold Resources Ltd and Golub Capital BDC Inc. are among the companies whose shares are moving in the pre-market trading on Tuesday.

Gainers

Cliffs Natural Resources Inc. (NYSE:CLF) stock climbed 3.28 percent to $21.70 in pre-market trading. The stock gained more than five percent in regular trading on Monday after it was upgraded by analysts at FBR Capital from “market perform” to “outperform” rating with a price target of $28.

Nokia Corporation (NYSE:NOK) stock rose 2.65 percent to $3.49 in pre-market trading. The company stock has a 52-week low of $1.63, a 52-week high of $4.90 and $12.37 billion in market capitalization.

HSBC Holdings Plc. (NYSE:HBC) stock gained 2.63 percent to $57.27 in pre-market trading. The company announced that they have declared a first interim dividend of $0.10 per ordinary share. The dividend will be payable on July 11, 2013 to holders of record as of May 23, 2013 on the Hong Kong Overseas Branch Register and May 24, 2013 on the Principal Register in the United Kingdom or the Bermuda Overseas Branch Register.

Youku Tudou Inc. (NYSE:YOKU) stock surged 2.52 percent to $20.35 in pre-market trading. The company stock has a 52-week low of $13.82, a 52-week high of $25.58 and $3.66 billion in market capitalization.

Rio Tinto Plc. (NYSE:RIO) stock advanced 1.76 percent to $48.12 in pre-market trading. The company stock has a 52-week low of $41.59, a 52-week high of $60.45 and $87.35 billion in market capitalization.

Barclays Plc (NYSE:BCS) advanced 1.66 percent to $19.00 in pre-market trading. The company stock has a 52-week low of $9.23, a 52-week high of $20.60 and $60.10 billion in market capitalization.

Losers

Allot Communications Ltd (NASDAQ:ALLT) stock plunged 3.92 percent to $11.75 in pre-market trading. It reported first quarter revenues of $24.2 million, in comparison to $24.2 million revenue reported in the first quarter of 2012 and $28.5 million revenue reported in the fourth quarter of 2012. On a non-GAAP basis, net profit for the first quarter of 2013 was $0.6 million, or $0.02 per basic and diluted share. This compares with non-GAAP net profit of $5.0 million, or $0.16 per basic share, and $0.15 per diluted share, in the first quarter of 2012.

Randgold Resources Ltd. (NASDAQ:GOLD) stock declined 2.70 percent to $76.66 in pre-market trading. The company stock has a 52-week low of $66.51, a 52-week high of $127.27 and $7.26 billion in market capitalization.

Golub Capital BDC Inc. (NASDAQ:GBDC) shares lost 2.36 percent to $17.40 in pre-market trading. The company announced on Monday that it plans to make a public offering of 5,500,000 shares of its common stock.

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