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Hong Kong Halts Derivatives Trading After Technical Problems

Magdalene Fung, Jeanny Yu and Moxy Ying
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Hong Kong Halts Derivatives Trading After Technical Problems

(Bloomberg) -- Hong Kong’s exchange operator halted derivatives trading because of technical issues for the first time in its history, deepening losses in the local stock market at a time of heightened sensitivity about the city’s status as Asia’s premier financial hub.

The move to suspend trading in the afternoon and after-hours sessions came after Hong Kong Exchanges & Clearing Ltd. experienced connectivity issues with its derivatives platform on Thursday morning. The exchange’s websites also faced intermittent access problems. The firm said the problem was caused by a software issue in the vendor-supplied trading system.

The issues hampered trading in the morning just as Hong Kong Chief Executive Carrie Lam gave a press conference about the demonstrations that have rocked the former British colony for three months, during which she resisted protesters’ calls to immediately meet the rest of their demands. The MSCI Hong Kong Index fell 1%, extending declines after the halt in derivatives trading. It had rallied the most since 2011 on Wednesday as Lam formally withdrew a controversial extradition bill.

“I’ve been doing this since 2003 and I don’t recall anything like this,” said Martin Wong, head of exchange-traded solutions in Asia Pacific for the equity derivatives team at BNP Paribas SA. “Because the futures market is closed, there is no efficient way to hedge.”

Trading in September Hang Seng Index futures totaled 60,070 contracts before the suspension, down 80% from the previous day. Volume in call and put options linked to the Hang Seng Index was less than 5% of the 20-day average, according to data compiled by Bloomberg.

“It’s very troublesome for investors as we can’t hedge,” said Steven Leung, executive director at UOB Kay Hian (Hong Kong) Ltd. “If something unexpected happened this afternoon, basically we are unable to respond effectively.”

(Adds comment from exchange operator.)

--With assistance from Gregor Stuart Hunter, Fox Hu and Alfred Liu.

To contact the reporters on this story: Magdalene Fung in Hong Kong at;Jeanny Yu in Hong Kong at;Moxy Ying in Hong Kong at

To contact the editors responsible for this story: Sofia Horta e Costa at, Michael Patterson, David Watkins

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