TSE investigates systems
MANAGEMENT INTELLIGENCE
Official statements from the TSE say the error occurred in the exchange's stock/convertible bond trading platform provided by IT systems vendor Fujitsu.
On December 8, a Mizuho Securities trader entered an erroneous order to sell 610,000 shares of J-Com at one yen each, rather than one share at ¥610,000 ($5,185). A TSE statement explains that after realising the error, Mizuho Securities officials made several attempts to cancel the transaction, but "an irregularity occurred in which the target
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