مزاد الإغلاق   تراجع سهم   ام  آي  اس بنسبة 4    من خلال   صفقات بنحو 25  6 ألف سهم http      argaam  me  HU4Q50zWCMc   السوق  السعودي   المزاد
Identify the main topic of the news article and categorize it as either spiritual, human-rights-press-freedom, business-and-economy, sports, science-and-technology, education, environment, health, art-and-entertainment, or politics. Return only the label without any explanation, justification or additional text.