'Gangnam Style' Triggers 500% Stock Rally

A father-son connection to the “Gangnam Style” music video has triggered an almost 500 percent rally in shares of DI Corp. since mid-July in Seoul.

Shakeup: Samsung Replaces Mobile-Unit Chief
30:11 - Samsung replaced the executive overseeing its mobile-phone business as the company tries to protect a dwindling sales lead against Apple and Chinese makers. Bloomberg's Jungah Lee reports on "Trending Business." (Source: Bloomberg)
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