ProShares Inflation Expectations ETF RINF – Up 7.2% Increased inflationary pressure and expectations due to the war as well as pandemic-driven supply chain issues led investors toward inflation-beating products like RINF. ProShares Inflation Expectations ETF (RINF): ETF Research Reports In the meeting held last week, the European Central Bank said that it would end its bond-buying program in the third quarter if economic data support the move.