Shares in the company slipped below their issue price on their first day of trading.公司股票在首个交易日跌破了发行价。The trading day is shortened in observance of the Labor Day holiday.因庆祝劳工节，这个交易日交易时间缩短了。International stock markets saw declines at the end of the trading day.国际股市在交易日结束时下跌。