Market Overview - As of August 19, the Shanghai Composite Index closed at 3727.29 points, down 0.74 points, with a decline of 0.02% [1] - The Shenzhen Component Index closed at 11821.63 points, down 13.95 points, with a decline of 0.12% [1] - The ChiNext Index closed at 2601.74 points, down 4.46 points, with a decline of 0.17% [1] Trading Activity - A total of 164 A-shares had a turnover rate exceeding 20% on the same day [1] - Notably, Guangdong Jianke and Zhongjie Automobile had turnover rates exceeding 50%, indicating significant trading activity [1] Top Stocks by Turnover Rate - Guangdong Jianke (301632) had a closing price of 44.36 yuan with a turnover rate of 66.58% and an increase of 19.99% [2] - Zhongjie Automobile (301560) closed at 41.22 yuan with a turnover rate of 58.17% and a decrease of 5.07% [2] - Guanlong Energy-saving (301151) closed at 25.90 yuan with a turnover rate of 54.68% and a decrease of 1.37% [2] - Northern Long Dragon (301357) closed at 173.00 yuan with a turnover rate of 51.55% and an increase of 1.24% [2] - Gaolan Co., Ltd. (300499) closed at 33.00 yuan with a turnover rate of 47.66% and an increase of 6.66% [2] Additional Notable Stocks - Ying Shi Innovation (688775) closed at 300.00 yuan with a turnover rate of 47.14% and an increase of 11.40% [2] - Hengbao Co., Ltd. (002104) closed at 28.40 yuan with a turnover rate of 44.77% and a decrease of 6.89% [2] - Boxun Biotechnology (836504) closed at 34.03 yuan with a turnover rate of 43.90% and an increase of 18.20% [2]