From the current limit of 4.5 million daily transactions, the TSE said Sunday the system now can deal with up to 5 million trades per day.
Wednesday the world's second largest bourse was forced to close the market 20 minutes early due to sudden surges in transactions primarily caused by the stock-related scandal involving Livedoor Co.
The TSE noted that it will shorten afternoon trading by 30 minutes, another emergency measure implemented to protect its trade-processing system.
Financial Services Minister Kaoru Yosano criticized the exchange in a Sunday TV program, saying the TSE's system is "slow and imperfect."
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