(Bloomberg) A heavily-shorted exchange-traded fund that holds retail stocks is soaring amid a report that the White House is not on board with the border-adjustment tax plan preferred by House Republicans.

Gary Cohn, chief economic adviser to President Donald Trump, told a group of executives at a private event in Washington that the White House does not support this initiative, news website Axios reported, citing an unidentified attendee of the meeting.

Trump had initially deemed the House Republican plan to encourage domestic production and exports by taxing imports to be “too complicated,” but touched on more of the potential positives of the proposal during an interview with Reuters on Thursday.

Shoppers at Menlo Park Mall in New Jersey on Black Friday 2016
Shoppers at Menlo Park Mall in New Jersey on Black Friday 2016 Michael Nagle/Bloomberg

Retailers would be among the biggest losers if such a proposal were implemented in full, as the majority of their sales are of imported goods. The SPDR S&P Retail ETF extended its gains to as much as 2.6 percent minutes after the Axios report.

Short interest in the ETF was 191 percent of float as of Jan. 31.

- Luke Kawa