Insto roundup: Vanguard hands back $21b of China insto assets; GIC to invest $1b in Ant Financial IPO

Australian pension fund underperformers will be blocked from getting new members; China's CIC forms $700m fund to invest in foreign firms opening in China; Indonesia to set up sovereign wealth fund; Vanguard hands back $21 billion in China institutional assets; Korea Post seeks managers for domestic bond mandate; GIC to invest $1 billion in Ant Financial IPO, and more.