Overseas investors making hay from e-commerce bet

A wager by the teachers of Ontario, Canada, on Beijing-based online retailer JD.com is paying off in a big way.

Their C $141 billion ($129 billion) retirement fund bought about 44 million of the then-privately held company's shares in November 2012 for $175 million, according to a May filing with the US Securities and Exchange Commission.

By the end of June, after JD.com went public in the US and its stock soared, the investment's value more than tripled to $630 million, a separate filing made on Thursday with the SEC showed.