The iPhone 5 launch on Wednesday, Sept. 12, is sure to be the most important event for tech investors this year. The Motley Fool will be hosting a live chat where our top tech analysts will answer your questions and break down what the announcement means for Apple and tech investors everywhere. Be sure to swing by Fool.com at 12:45 p.m. ET next Wednesday for all your coverage of Apple's next big announcement.

After news filtered out of Europe that the Eeropean Central Bank will enact "unlimited" bond buying to stem the continuing crisis across the eurozone, stocks took off. That led to good market gains this past week, with tech seeing some of the biggest winners.

In the following video, Senior Technology Analyst Eric Bleeker looks at five tech stocks that saw the biggest gains this week. He notes that the biggest winner, MEMC Electronics, saw large gains after settling legal uncertainty, but it still faces a difficult road, ahead being lumped in with solar plays. In addition, the hiring space was hot after reports filtered out that Monster is finding more interest from potential acquirers and LinkedIn saw its own gains after upgrades. Finally, recent IPOs were hot, with both ServiceNow and Yelp seeing big gains. To see Eric's full thoughts, watch the following video.

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