SAN FRANCISCO (TheStreet) – Twitter (TWTR) - Get Report plunged Tuesday as the social media operator posted weak third-quarter user growth and faced a number of downgrades. But other tech players gained, especially chip maker Integrated Device Technology (IDTI) - Get Report and to a lesser degree IBM (IBM) - Get Report .

Twitter fell 9.8% to close at $43.78. 

Although the San Francisco-based social media company managed to beat analysts third quarter revenue estimates, it fell short of their expectations for user growth. During the quarter, Twitter added 13 million monthly active users, but some analysts were hoping for 16 million to 18 million.

That miss, in turn, led to downgrades from Nomura Securities, RBC Capital, Stifel and Bank of America Merrill Lynch.

Integrated Device Technology shot up 18% to close at $16.62.

Driving the San Jose, Calif., chip maker higher was its fiscal second quarter performance, which beat Wall Street estimates. The low-power, mixed signal chip maker, which sells its products for use in cloud data centers to mobile device makers for power management, reported earnings of 20 cents a share on revenue of $137.09 million.

Integrated hit a new 52-week high of $17.44 today, which is up 43% from $12.22 where it traded just a little over two weeks ago. 

For Integrated, it's fortunate to be in two areas that are in strong demand - chips for mobile and chips for data centers. In mobile, its semiconductors are finding a way into wireless charging devices for smartphones. And in the data center, its components help with processing the information. 

IBM rose 1.1% to end the regular session at $163.60.

Big Blue got a rise from investors who cheered on its announcement of a stock buyback plan. Under its buyback plan, IBM plans to repurchase an additional $5 billion in shares. This will substantially increase its previous authorization of $1.4 billion in a stock buyback.

Along with the stock buyback, IBM declared its regular quarterly dividend of $1.10 a share. The dividend was in line with its previous levels.

At the time of publication, the author held no positions in any of the stocks mentioned, although positions may change at any time.

This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.

TheStreet Ratings team rates INTL BUSINESS MACHINES CORP as a Buy with a ratings score of B. TheStreet Ratings Team has this to say about their recommendation:

"We rate INTL BUSINESS MACHINES CORP (IBM) a BUY. This is driven by several positive factors, which we believe should have a greater impact than any weaknesses, and should give investors a better performance opportunity than most stocks we cover. The company's strengths can be seen in multiple areas, such as its notable return on equity and good cash flow from operations. We feel these strengths outweigh the fact that the company has had sub par growth in net income."

You can view the full analysis from the report here: IBM Ratings Report