Procept BioRobotics Corp.

debuted on Wall Street Wednesday with a bang, as the California-based surgical robotics company’s stock opened 40.0% above the up-sized initial public offering’s price. The company had said overnight that it raised $163.9 million as it sold 6.56 million shares in the IPO, which priced at $25.00, compared with previous expectations of a 5.5 million-share offering at an expected price of between $22 and $24 a share. The stock’s first trade on the Nasdaq was at $35.00 at 12:03 p.m. Eastern for about 671,000 shares. The stock has since added to gains, to trade up 46.5% at $36.62. The company went public on a very busy week for IPOs, and on a day that the Renaissance IPO ETF

was little changed in midday trading, while the S&P 500

gained 0.3%.

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