卧龙电驱成交额达100亿元，现跌9.99%。

Group 1 - The core point of the article is that Wolong Electric's transaction volume has reached 10 billion yuan, but the stock has dropped by 9.99% [1] Group 2 - The significant transaction volume indicates strong market activity or interest in Wolong Electric [1] - The 9.99% decline in stock price may suggest market concerns or reactions to recent developments related to the company [1]