On Thursday, U.S. interest rates futures prices jumped, suggesting traders saw a nearly one-in-three chance the Fed would lower key lending rates by a quarter percentage point in the next 12 months. This compared with a one-in-five shot the previous day, according to CME Group's FedWatch programme.

The rally in rates futures came a day after the Fed said it would be "patient" before raising rates further. Fed Chairman Jerome Powell said at a press conference the case for more rate hikes had "weakened" in recent weeks.

The Fed also signalled it was prepared to adjust the shrinkage of its $4 trillion (£3.1 trillion) balance sheet, a move that has spurred worries about drainage of cash from the banking system too quickly.

"This was an extraordinarily dovish set of communications. They removed any bias to raise rates altogether," said Steven Friedman, senior economist at BNP Paribas Asset Management in New York.

Just last month, the Fed raised the federal funds rate and other short-term borrowing costs by a quarter point to between 2.25 percent and 2.50 percent, its fourth rate increase in 2018. It hinted more rate hikes were likely.

The perceived policy shift six weeks later kindled a wave of buying in federal funds futures for delivery in the latter half of 2019 through 2020.

Late on Thursday, the price of fed funds contracts for January 2020 delivery was 7.5 basis points higher than those for January 2019. This was the widest premium between the two contracts in four weeks, but well below the 18 basis points on Jan. 3.

"It means the market is leaning towards an ease (in rates) in the next 12 months," said Alex Manzara, vice president at R.J. O'Brien and Associates in Chicago.

On the other hand, if the U.S. labour market stays tight and Wall Street continues its rebound from a rout in December and early January, Fed officials may return to a tightening stance, analysts said.

"An additional rate hike is not out of the question if the market continues to rally strongly," said Matt Freund, head of fixed-income strategies with Calamos Investments in Chicago.

For a graphic o
n traders' U.S. interest rate expectations, click

(Reporting by Richard Leong in New York; Editing by James Dalgleish and Dan Grebler)

By Richard Leong