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Funny thing happened to your Zestimate, It is either got hacked or someone was manipulating the data

The historical data for two condo units had been changed daily in the last few days and the estimation spike up  close to $100,000 for one condo in the same day the other one went down thousands both in the same complex just few tens of feet away.
The two units were competing for the sale last week. 
How the historical data for these two units got changed daily and drastically and in opposite directions?
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August 03 2012 - Green Acres
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Answers (2)

Zillow and others use automated valuation models to come up with their value estimates...these models are often incorrect...see below

http://realestatecoach.com/articles_archive/art201104-but.html

Good Luck!!!
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September 22 2013
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Is one of the units listed by an agent on Zillow?
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August 03 2012
 
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