• Y Alleghany Corp (NYSE)
• YANG DIREXION DAILY FTSE CHINA BEAR 3X SHARES (PCQ)
• YAYO YayYo Inc (NASDAQ)
• YCL ProShares Ultra Yen (AMEX)
• YCS ProShares UltraShort Yen (AMEX)
• YELP Yelp Inc (NYSE)
• YGE Yingli Green Energy Holding Co Ltd ADS (NYSE)
• YHOO Yahoo! Inc (NASDAQ)
• YINN DIREXION DAILY FTSE CHINA BULL 3X SHARES (PCQ)
• YNDX Yandex NV (NASDAQ)
• YOKU Youku.com Inc (NYSE)
• YPF YPF Sociedad Anonima ADR Each Representing One Class D Ord S (NYSE)
• YRCW Yrc Worldwide Inc (NASDAQ)
• YUM Yum Brands Inc (NYSE)
• YUMC Yum China Holdings Inc (NYSE)
• YY YY Inc (NASDAQ)