On April 17, the announcement of the issuance results of new shares of nano core micro showed that in the online issuance of this A-share IPO, investors abandoned the purchase of 3.3815 million shares, with an amount of 780 million yuan, accounting for 38.76% of the total online issuance of 8.7235 million shares, that is, nearly 40% of the retail investors who won the online lottery chose to abandon the purchase. However, offline investors abandoned the purchase of shares and the large purchase of 780 million yuan, both in absolute terms and in proportion. The sponsor and lead underwriter of the wechat IPO is Everbright Securities Company Limited(601788) . The abandonment is underwritten by the lead underwriter. Everbright Securities Company Limited(601788) and its subsidiaries have to invest nearly 900 million yuan, but the sponsor fee and underwriting fee are also as high as 203 million yuan.