An index of Chinese chip stocks is outperforming global peers, surging 50% since the end of June, amid raising investor caution about soaring valuations (Jeanny Yu/Bloomberg)

Jeanny Yu / Bloomberg:
An index of Chinese chip stocks is outperforming global peers, surging 50% since the end of June, amid raising investor caution about soaring valuations  —  China's chip stocks have staged a world-beating rally in the past few months on the nation's self-sufficiency push …