Home Depot ($HD@US) shares fell nearly 4% in premarket trading this morning. The retailer states fewer customers visited stores during the second quarter as the appeal of pandemic-fueled DIY projects wanes. The home improvement giant has not provided a full-year outlook, but revenue growth is expected to slow in 2021. U.S. same-store sales were up just 3.4% in the latest quarter, compared with a 25% jump during the same period last year. Home Depot and Lowe’s ($LOW@US) continue to vie for the business of professionals who place bulk orders. Home Depot recently added to its pro-business with the acquisition of HD Supply, a large distributor of appliances, plumbing, and electrical equipment.