(AMZN) - Get, Inc. Report

was among the biggest volume movers in Instinet trading after the close Friday, but the online books and music seller was little changed from the end of regular trading.

The company's shares were ticking down 0.2% to $12.22. Earlier in the day,

published a story indicating that some

analysts are being cautious when assessing Amazon's holiday sales.



, which has been drawing critical comments from Wall Street analysts this week, was the most active issue, trading up 0.2% to $4.72. Edward Jones, Morgan Stanley, Prudential and UBS Warburg cut their estimates, price targets or ratings on the retailer's stock during the past few days, saying that the company is having a tough time keeping up with its competitors. One analyst suggested a bankruptcy filing may be in Kmart's future.

Overall, volume was typical for the last session of the week. In the first half-hour of extra trading on the Instinet platform, around 1.9 million shares changed hands among the top-20 volume movers.


(CSCO) - Get Cisco Systems, Inc. Report

was off 0.3% to $20.77 after the close.

Sun Micro

(SUNW) - Get Sunworks, Inc. Report

was unchanged at $13.93, and


(SUNW) - Get Sunworks, Inc. Report

was inching up 0.1% to $14.62.

JDS Uniphase

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was dropping 1.2% to $9.90, while


(DELL) - Get Dell Technologies Inc Class C Report

was lower by 0.2% to $29.53.



was off 0.7% to $26.72, and


(INTC) - Get Intel Corporation (INTC) Report

was down 0.1% to $35.74.


Nasdaq 100 Tracking Stock

(QQQ) - Get Invesco QQQ Trust Report

was flat at $41.65.



was gaining 1.7% to $77.54, but volume was fairly light.

CV Therapeutics


was one of the biggest losers in after-hours trading, shedding 4.4% to $47.90.