Shares of Fastly Inc. opened 34% above its initial public offering price, then kept rising, as the software company debuted on the NYSE. The first trade was at $21.50 at 10:35 a.m. Eastern for 2.06 million shares, above the $16 IPO price. It was recently trading above $23, or more than 44% above its IPO price. The company raised $180.8 million, as the IPO priced at the top of the expected range, giving the company an initial market capitalization of $1.45 billion. Fastly has gone public at a time that the Renaissance IPO ETF has gained 7.3% over the past three months, while the S&P 500 has tacked on 3.4%.