Integral Ad Science Holding Corp. /zigman2/quotes/227703932/composite IAS -1.60% has set terms of its initial public offering, in which the New York-based digital advertising verification company looks to raise up to $255 million and be valued at up to $2.53 billion. The company is offering 15.0 million shares in the IPO, which is expected to price between $15 and $17 a share. Integral Ad expects to have 148.96 million shares outstanding after the IPO. The stock is expected to list on the Nasdaq under the ticker symbol "IAS." There are 14 underwriters, led by Morgan Stanley, Jefferies, Barclays and Evercore ISI. The company recorded a net loss of $28.0 million on revenue of $240.6 million in 2020, after a loss of $50.9 million on revenue of $213.5 million in 2019. The company is looking to go public at a time that the Renaissance IPO ETF /zigman2/quotes/207665280/composite IPO -1.22% has inched up 0.1% year to date while the S&P 500 /zigman2/quotes/210599714/realtime SPX -0.11% has gained 10.9%.