Shares of Orbitz ( OWW) fell 5.7% to $3 0.18 after Goldman Sachs downgraded the stock to sell from neutral.

The firm noted that Orbitz's online gross bookings grew slower than competitors like Expedia ( EXPE) and Priceline ( PCLN).

Shares of Research In Motion ( RIMM) tumbled 5.6% to $43.31 after RBC Capital cut its earnings estimate for the year to $3.58 a share from $3.62 a share. The firm also trimmed its full-year revenue estimate to $11.1 billion from $11.3 billion amid deteriorating macro demand and increased competition.

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