Home prices falling anew

S&P/Case-Shiller shows home prices dropping in all twenty cities tracked:

Home prices took a shockingly steep plunge on a monthly basis, an indication that the housing market could be on the verge of -- if it's not already in -- a double-dip slump.

Prices in 20 key cities fell 1.3% in October from a month earlier, an annualized decline of 15%, according to the S&P/Case-Shiller index released Tuesday. Prices were down 0.8% from 12 months earlier.

Month-over-month prices dropped in all 20 metro areas covered by the index. Six markets reached their lowest levels since the housing bust first began in 2006 and 2007.