SINGAPORE, Sept 19 Reuters The U.S. dollar rose broadly on Thursday, reversing a brief tumble in the immediate aftermath of the Federal Reserve39;s outsized interest rate cut that had been largely priced in by markets.

The U.S. central bank on Wednesday kicked off its monetary easing cycle with a largerthanusual halfpercentagepoint reduction that Chair Jerome Powell said was meant to show policymakers39; commitment to sustaining a low unemployment rate now that inflation has eased.

While the size of the move had been anticipated by investors in part due to a slew of media reports pointing in that direction ahead of the decision, it defied the expectations of economists polled by Reuters, who were leaning toward a 25basispoint cut.

Still, markets reacted in a typical buy the rumour, sell the fact fashion that kept the dollar on the front foot in Asian trade, as it recouped losses made against its peers in the run up to the Fed meeting.

Against the yen, the greenback gained as much as 1.2 to hit an intraday high of 143.95 earlier in the session. It last traded 0.62 higher at 143.15 yen.

There was a sharp squeeze in short dollaryen positions as markets took profit postFed, said Christopher Wong, currency strategist at OCBC.

The Swiss franc fell about 0.3 to 0.8487 per dollar, while the euro dipped 0.01 to 1.1117, away from a threeweek high hit in the previous session.

The dollar index , which measures the greenback against a basket of six peers, rose marginally to…