A roundup of tech ratings changes

|By:, SA News Editor

TiVo (TIVO -4.7%) has been cut to Equal Weight by Evercore following its Q3 beat. Brean has also weighed in.

Analog Devices (ADI -5.8%) has been cut to Hold by Drexel Hamilton after missing FQ4 revenue estimates and providing soft FQ1 guidance.

Twitter (TWTR +1.3%) has been started at Buy by MKM.

Qunar (QUNR -0.4%) has received two bullish and two neutral ratings on underwriter coverage day.

Oi (OIBR +2.3%) has been started at Outperform by Bernstein.

Ruckus (RKUS +2.8%) has been started at Buy by Stifel.