BOSTON ( TheStreet) -- In an accelerating economic recovery, technology stocks tend to outperform. But the popularity of the sector is deterring many investors. Momentum technology stocks, such as F5 Networks ( FFIV), which plunged 23% last week, are volatile. Still, technology is the highest-rated U.S. sector for 2011, based on analysts' mean ratings. Researcher Jefferies favors the following six stocks, which it expects to outperform the market over 12 months. Below, they are ordered by predicted upside, from plenty to most.