The NASDAQ rallied nearly 30% this year, outperforming the S&P 500's 20% gain and lifting many tech stocks, some of which posted massive triple-digit gains. Let's take a closer look at the four tech stocks with the strongest year-to-date performance so far: Xunlei (NASDAQ: XNET), Overstock.com (NASDAQ: OSTK), Control4 (NASDAQ: CTRL), and Universal Display Corporation (NASDAQ: OLED).
Xunlei is a Chinese company that provides a cloud platform, the Xunlei Accelerator, which speeds up online transmissions. This platform was originally intended for streaming video, online games, and other cloud-based content.
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Source: Fool.com