并购重组+汽车零部件概念联动4连板！交运股份9:50再度涨停，背后逻辑揭晓

Group 1 - The core viewpoint of the article highlights that Jiaoyun Co., Ltd. has experienced a continuous four-day limit-up trading, indicating strong market interest and momentum [1] - The stock reached a trading limit at 9:50 AM with a transaction volume of 826 million yuan and a turnover rate of 9.15% [1] - The company is planning a significant asset swap and related transactions, which is expected to enhance its business in the automotive parts manufacturing sector [1] Group 2 - The recent optimization of policies related to the automotive industry has created a favorable environment, increasing market attention towards the company [1]