According to Jin10, China's A-share optical chip concept sector weakened on October 8, with Changguang Huaxin and Yuanjie Technology both hitting the 20% daily limit down, Dongshan Precision falling 10%, and Shijia Photons dropping more than 17%. Yuanjie Technology said its recent share-price volatility was affected by a Morgan Stanley report, declined to comment on the report, and said production and operations are normal and all businesses are proceeding as usual.