This Week's ETF Winners & Losers

In more merger-related tech news, CNET (CNET Quote) agreed to sell itself to CBS (CBS Quote) for $1.8 billion. CNET shares have soared nearly 50% since Monday, and CBS surrendered 4%.

Elsewhere, activist investor Carl Icahn built up his position in Yahoo! (YHOO Quote) before moving to replace 10 of the company's directors, saying in a letter that the firm "acted irrationally" in turning down Microsoft's (MSFT Quote) sweetened buyout bid.

Yahoo! shares have ballooned 6.7% over the past week. The Internet HOLDRs (HHH Quote) fund jumped 4.7%, and the Internet Architecture HOLDRs (IAH Quote) ratcheted up 2.5%.