????IPO日期：2012年2月24日

????這家定制機器零部件生產商今年2月底首日上市，開盤報16美元，收于29美元，首日漲幅達81%。Protolabs致力于為客戶提供新產品開發所需的原型機和零部件樣品，路演時給人印象深刻，投資者反響強烈。

????這宗IPO也是美國制造業復蘇的一個跡象。IPO 完成6個月后，該股累計漲幅104%。

????IPO date:?2/24/2012

????The custom machine parts manufacturer opened at $16 a share in late February this year and closed at $29, an increase of 81% on its opening day. Protolabs (PRLB), which makes prototypes and sample parts for companies creating new products, made a big impression on investors during its roadshow and there was an enthusiastic response to the business.

????The IPO was another sign that manufacturing is making a comeback. Six months later, the stock was still up 104%.