A house is for sale in Arlington, Virginia, July 13, 2023.
High prices and mortgage rates have hit US home sales.
  • US homeowners who are downsizing now are "lucky," Skylar Olsen, Zillow's chief economist told MarketWatch.
  • US home prices have gained strongly since January 2020, which would help fund their next home purchase.
  • Those who are able to downsize without a mortgage are the luckiest, said Olsen.

US home sales may have plunged, but homeowners who are downsizing could still be striking the lottery on the back of strong price gains, an economist told MarketWatch on Wednesday.