<prompt> Human: Looked at Zillow this morning, and my house value is down 95k overnight! Worse, Zillow changed the history of the estimate - it was 718k last week, and now the historical estimate never goes over 650k.I found this article saying that there was an algorithm change to improve accuracy and speed. Anyone else see big changes?Assistant: Zillow estimates are some of the most inaccurate numbers around. I wouldnt be too worried about them.Look at comparable sales. Its the only accurate indicator of the market in your area.Human: Yeah, Zillow estimates are noisy. But my area just doesnt have comps, so it is the best I have found. 18 homes in the whole zip code sold last month...Edit: When we bought the place the appraiser said he was unable to find comparable sales within one mile and one year and so did an income property appraisal rather than comparable sale appraisal. FHA loan with no comp sales.  <response>: Every market has comps unless you live in a 1 house town. 