The Swiss Market Index (SMI) dropped 0.8 percent to 5,824.1 at 3:24 p.m. in Zurich after China's home prices fell in a record number of cities last month and car dealers posted inventory levels that foreshadowed deeper price cuts. The measure has retreated to the lowest level since Dec. 22 after sliding 2.2 percent this week. The broader Swiss Performance Index slipped 0.9 percent today.