NEW YORK -- Knight Capital Group ( KCG) could sell its market-making business -- the company's biggest and most profitable business -- but also the unit that suffered a trading glitch in August that cost the company losses of more than $460 million in the third quarter, a report said. The securities firm has been approached by at least two rivals about its market-making operation, according to The Wall Street Journal. Knight expects to receive proposals this week from high-speed trading firms Getco and Virtu Financial, people briefed on the discussions told the newspaper. Knight Capital shares rose 6.4% in premarket trading Monday to $2.65. Apple ( AAPL) asked a federal court to add six more products to its patent infringement lawsuit against South Korea's Samsung. The products include the Galaxy Note II, Galaxy S III with Android 4.1, Galaxy S III mini, Samsung Rugby Pro, Galaxy Tab 8.9 Wi-Fi and Galaxy Tab 2 10.1. Apple shares fell 0.2% to $571.40 in premarket trading. Apple TV: The Stuff Dreams Are Made Of Online retailers such as Amazon ( AMZN)and eBay ( EBAY), and more traditional retailers such as Wal-Mart ( WMT) and Target ( TGT), could see activity on Cyber Monday, when shoppers take to the Web to make their holiday purchases. ComScore estimated that Cyber Monday sales could exceed $1.5 billion. Amazon shares were down 0.4% to $239; eBay shares rose 0.4% to $49.20. The War Over Christmas Starts NowFlowers Foods ( FLO) is considered a likely bidder of some of the assets of Hostess, the maker of Twinkies that was granted permission from the courts last week to wind down its operations. Flowers is the second-largest baker in the U.S. Baxter International ( BAX)is in talks to buy Swedish medical-equipment maker Gambro for roughly $4 billion, the Journal reported, citing people familiar with the matter, in a move that would boost Baxter's kidney-dialysis business. Other stocks rising in premarket trading Monday included Tower Semiconductor ( TSEM), up 4.1% to $8.64, and James River Coal ( JRCC), up 5.2% to $2.62. 8 Stocks Climbing Higher on Unusual Volume -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: email@example.com.