Petco Health and Wellness Co. and Poshmark Inc. signage outside the Nasdaq MarketSite during their initial public offering (IPO) in New York, U.S., on Thursday, Jan. 14, 2021.Michael Nagle | Bloomberg | Getty ImagesShares of Petco Health and Wellness Company shot up by more than 60% in their debut on Nasdaq on Thursday, reflecting Wall Street’s appetite for investing in the industry during the pandemic-fueled pet boom.Petco opened at $26, about 44% above its IPO price, but shares were recently trading at almost $30.On Wednesday night, the company had priced its initial public offering at $18 to raise about $816.5 million, higher than the $14 to $17 expected …