NEW YORK (TheStreet) -- Digital company Eastman Kodak (EK) issued a statement denying reports that it was weighing filing for bankruptcy protection.

Shares were surging 41% to $1.10 in premarket trading Monday.

Arch Coal ( ACI) cut its 2011 earnings outlook to an adjusted profit of $1 to $1.40 a share late Friday, lower than the earnings of $2.02 a share that analysts had been projecting. The company blamed lost metallurgical coal production at its Mountain Laurel facility.

Shares were plunging 9.1% to $13.25.

Alibaba Chairman Jack Ma expressed strong interest in acquiring troubled Internet company Yahoo! ( YHOO), according to published media reports.

Shares of Yahoo! were adding 6.3% to $14.

Yahoo! owns 40% of Alibaba Group, which owns multiple Internet businesses in China.

Electronic payments firm ACI Worldwide ( ACIW - Get Report) is acquiring payments products company S1 ( SONE) for $9.55 a share, an increase of 42 cents a share in cash from ACI's previous offer.

The acquisition consists of about $360 million in cash and 5.8 million in ACI shares.

Shares of S1 were gaining 5% to $9.63. ACI shares were unchanged at $27.54.

Apple ( AAPL - Get Report) is expected to launch the iPhone 5 on Tuesday.

Apple shares were up 0.6% to $383.71.

U.S. automakers Ford ( F - Get Report) and General Motors ( GM - Get Report) are expected to report September car sales numbers Monday.

Ford shares were down 0.3% to $9.64.

Health insurer WellPoint ( WLP) increased its stock buyback program by $5 billion.

Heavy vehicles supplier Oshkosh ( OSK - Get Report) said union workers have overwhelmingly rejected a new, five-year contract, even though it would have given them a raise and signing bonus.

-- Written by Andrea Tse in New York.

>To contact the writer of this article, click here: Andrea Tse.

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