Home PricesHow does a home valued in December of 2011 is valued at say 650,000 now be valued at 1.2m. Seems like a huge jump in price in two months. Can you elaborate how the zillow home price index is reflective of what an offer should be on a home. thanksFebruary 20 2012 - Carefree00YesReport a ProblemProblemSelect oneOffensive contentIrrelevant contentSpam (pure self-promotion)OtherDetailsYour emailPlease enter a valid email address.Submit CancelContent flaggedWe will review this content. Thanks for helping make the site more useful to everyone. To learn more, read Zillow's Good Neighbor Policy.We're sorry. This service is temporarily unavailable. Please come back later and try again.