IPO日期：2012年2月2日

    杀毒软件公司AVG Technologies宣布要上市时，人们对其寄予厚望。公司营收正在增长，很多投资者相信从估值看，认为该股具有吸引力。但它上市首日即下跌18.75%，是今年上市首日跌幅最大的一只IPO股票。

    分析师们将此归咎于AVG面临的激烈竞争，赛门铁克（Symantec）、迈克菲（McAfee）等竞争对手已经和个人电脑制造商达成了搭售协议，而AVG则依赖于网络“免费+增值”模式吸引客户。还有人担忧，AVG最成功的产品Safe Search缺乏合适的移动版。IPO 完成6个月后，该股累计下跌已经达到了33%。

    IPO date: 2/2/2012

    Expectations were high for anti-virus maker AVG Technologies (AVG) when it announced its plans to go public. Revenues were growing and many investors believed it was attractive on a valuation basis. But the stock dropped 18.75% on its opening day, the single largest drop for any IPO this year.

    Analysts blamed the heavy competition AVG faced and noted that competitors like Symantec and McAfee had struck tie-in deals with PC makers while AVG relied on attracting customers through its online 'freemium' model. There were also concerns that AVG didn't have a suitable mobile version of Safe Search, its most successful product. Six months later, the stock was down by 33%.