Update : May 12, 2011
A "Temporary Trading Halt" is used when there is information that is considered likely to materially affect investment decisions for which details are unclear, and TSE deems it necessary to disclose the condition of that information to the public.
TSE temporarily halts trading in companies about which important information, such as a merger, allotment to a third party or a capital reduction, is officially disclosed and TSE deems it is necessary to disseminate it to the public. In such cases, trading resumes 15 minutes after the official announcement of the information by those listed companies.
TSE also halts trading in companies about which unclear but materially important information is broadcasted via information vendors or other news sources. In those cases, as with the above, trading resumes 15 minutes after the official announcement is disclosed.
Placement, correction and withdrawal of orders are available during the trading halts, however, each Trading Participant has its own rules for treatment of orders when trading is halted, so investors should clarify how their orders are treated during a trading halt.
Trading resumes under the Itayose method, which treats all orders placed before the initial price is determined after the resumption of trading as simultaneous orders.