基准韩国综合股价指数周四下跌1.3%，至2561点左右，为四周来的最低水平，因为几乎所有行业都出现了下跌。这一下降是在华尔街疲软领先之后出现的，因为美国主要科技公司面临着巨大压力。投资者还权衡了三星电子第三季度的收益，该收益显示半导体营业利润下降了40%，导致其股价下跌0.3%，而其同行SK海力士股价下跌2%。其他值得注意的亏损出现在健康和金融领域，如三星生物制品（-1.8%）、Celltrion（-1.5%）、KB金融（-2.1%）、新韩金融（-2%）和韩亚金融（-2.10%）。此外，钢铁制造商公布大幅亏损，韩国锌在宣布新股发行后连续第二个交易日暴跌12.2%，而浦项制铁控股因第三季度利润下降而下跌1.3%。经济新闻方面，韩国9月份零售额环比下降0.4%，工业生产下降0.2%，扭转了8月份的涨势。

The benchmark KOSPI shed 1.3% to around 2,561 points on Thursday, marking its lowest level in four weeks, as nearly all sectors posted losses. This decline followed a weak lead from Wall Street, as major US tech companies came under significant pressure. Investors also weighed Samsung Electronics' Q3 earnings, which revealed a 40% drop in semiconductor operating profit, leading to a 0.3% decline in its shares, while its peer SK Hynix tumbled 2%. Other notable losses were seen among health and finance, such as Samsung Biologics (-1.8%), Celltrion (-1.5%), KB Financial (-2.1%), Shinhan Financial (-2%) and Hana Financial (-2.1%). Additionally, steelmakers posted sharp losses, with Korea Zinc plunging 12.2%, for a second straight session after announcing new stock issuance, while Posco Holdings slipped 1.3% due to declining Q3 profits. In economic news, South Korea's retail sales fell 0.4% month-on-month, while industrial production declined 0.2% in September, reversing gains from August.