Donald Trump’s win on Tuesday has sent private prison company stocks soaring as investors anticipate that the president-elect’s promises of mass deportation will increase the need for immigration detention. Stocks for GEO Group and CoreCivic, the nation’s largest private prison operators, increased 42 percent and 29 percent respectively on Wednesday. Financial news site Sherwood News concluded that GEO Group “was the single biggest winner in the US stock market — among companies of any size.” “The GEO Group was built for this unique moment,” said GEO Group founder and executive chairman George Zoley on an earnings call on Thursday.