The Tokyo stock market has remained in a corrective phase in recent weeks as information-technology and other high-priced issues continue to take a battering.
The considerable loss of market value among high-flying issues has set off waves of margin calls from stockbrokers. They are seeking bigger cash deposits from individual investors who have borrowed from brokers to buy those stocks, forcing investors to unwind their long positions.
Their selloffs include shares bought on credit as well as securities they deposited with brokers to help finance the margin transactions.
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