Nextdoor's (KIND) stock surged as much as 33% on Monday morning after the company listed on the New York Stock Exchange via a merger with a special purpose acquisition company. Shares of the social-media neighborhood platform were trading above $14 each on the day of its public debut. Nextdoor raised $674 million with the closure of its merger with Khosla Ventures Acquisition Co. II, a blank check company. The platform allows users to connect with neighbors and ask questions. Users can also sell used items directly to neighbors, similar to Facebook's marketplace.