On February 12, Zhang Nan, chairman of Jianan, released an internal letter, stating that "the company received orders and feedback from many customers during this period, and sales were not significantly affected by the epidemic." According to the previous news from the Odaily Planet Daily, the stock of Canaan Technology (CAN) in the blockchain rose more than 80% (82.73%) on Wednesday. Yahoo Finance data showed that the stock opened at $ 4.42 on the day and hit a high of $ 8.69 at the end of the day. At the end of the trading day, it closed at $ 8.04. At present, more than 11 million shares have changed hands, compared with the previous average trading volume of 250,000 shares.