Spencer Rascoff: 'The days of the part-time agent are over'

Zillow Group’s strategy of capturing the business (and advertising dollars) of top-producing agents seems to be paying off — in a big way. In the company’s fourth-quarter and overall 2015 earnings call, it revealed that its average monthly revenue per advertiser (ARPA) was $438. That’s a big jump from $339 in 2014 — a spike of 29 percent.