U.S. treasury yields jumped, underpinning a move higher in the greenback, as investors expect the central bank to announce that it will begin unwinding its $4.5tn bond portfolio and reaffirm its outlook that an additional rate hike this year remains appropriate.As well as plans for balance sheet unwinding, the Fed’s Summary of Economic Projections and dot-plot are expected garner much of the attention, as investors are keen to assess whether the slowing pace of inflation has altered the central bank’s longer-term view on interest rates.“Away from the balance sheet, investors should focus on the Summary of Economic Projections and the well known dot-plot.” Analysts at Morgan Stanley (NYSE:MS) said in a note. “We see the biggest risk to our economist's call for status quo as a lower median longer run dot - possibly falling to 2.75% from 3.00%.”