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) - Get Report

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) - Get Report

and

eBay

(EBAY) - Get Report

, and more traditional retailers such as

Wal-Mart

(WMT) - Get Report

and

Target

(TGT) - Get Report

, 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 Now

Flowers Foods

(FLO) - Get Report

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) - Get Report

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) - Get Report

, 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

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.