NEW YORK (TheStreet) -- It seems like even Wall Street was ready for a quiet weekend.

After a volatile week of trading that saw huge swings in domestic and overseas financial markets, major U.S. stock indexes closed Friday largely unchanged.

All three key indexes moved by less than 1% Friday. The Dow Jones Industrial Average closed at 16,643.01, a decline of 11.76 points. The S&P 500 ended the day at 1,988.87, a gain of 1.21 points. The tech-heavy Nasdaq Composite Index closed at 4,828.33, up by 15.62 points.

Among technology companies, Concurrent Computer (CCUR) jumped by 16.7%, closing at $5.46 per share. The company, based in Duluth, Ga., sells software, hardware and services in the streaming video market. Concurrent recently reported total revenue of $64 million for its fiscal year that ended June 30, compared with revenue of $71 million for the prior year. It reported a net loss of $345,000 for the year, compared with a profit of $18.5 million, which also reflected a tax benefit, for the prior 12 months. During an earnings call this week, Concurrent's top executives said they are making progress on several new company initiatives.

Another tech stock that had an impressive gain Friday was Activision Blizzard (ATVI - Get Report). The company, which develops interactive entertainment software products, saw its stock jump by 4.62%, closing at $29.22. Activision Blizzard, headquartered in Santa Monica, Calif., is joining the S&P 500 Index, replacing Pall (PLL).

Shares of GameStop (GME - Get Report), a multi-channel video game retailer based in Grapevine, Texas, dropped by 8% Friday, closing at $42.49. Early in the day Benchmark downgraded GameStop shares to sell from hold, according to Investor's Business Daily. The company's shares were trading as high as $47.44 earlier this month.

Autodesk (ADSK - Get Report) stock lost 5% of its value Friday, closing at $47.52, a new 52-week low. Autodesk, based in San Rafael, Calif., sells design software and services. Late Thursday the company reported sales results for its fiscal second quarter the missed analysts' expectations. 

This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.