ETSY - 1stdibs: Niche Marketplace Niche Stock June, 13 2021 07:02 AM Etsy Inc. 1stdibs is a specialty online luxury antique marketplace. The company sees solid traction and focuses on an interesting niche. Valuations look reasonable compared to some peers, yet I fail to see real appeal. For further details see: 1stdibs: Niche Marketplace, Niche Stock