Tech ratings changes: Sohu, Youku, Semtech, TIM Participacoes

|By:, SA News Editor

Sohu (SOHU -2.2%) has been cut to Neutral from Conviction Buy by Goldman.

Youku (YOKU -2.4%) has been cut to Sell by Goldman.

Semtech (SMTC +1.6%) has been upgraded to Neutral by B. Riley ahead of its FQ4 report.

TIM Participacoes (TSU -0.4%) has been cut to Neutral by Citi.