Hong Kong watchdog fines JPMorgan for dark pool, control failuresHONG KONG Hong Kong’s securities watchdog said on Tuesday it had fined JPMorgan HK$30 million ($3.87 million) for a range of control failures, including breaches in its dark pool business. The U.S. bank is the latest institution to fall foul of a broader crackdown by the Securities and Futures Commission (SFC) on electronic trading and dark pools in the financial center.