The yen dropped to a new one-month low and sterling hit a six-week high in holiday-thin trading on Thursday, after investors overnight had turned back towards riskier currencies and equities.
The moves seemed to be linked to recent improved sentiment as many governments resist imposing new, widespread lockdowns, even as the Omicron variant of the coronavirus surges.
Reuters data shows global COVID-19 infections hit a record high over the past seven-days.
"Markets continue to price in finishing Omicron fears thanks to low hospitalisations. That has encouraged investors out of defensive positioning and back into the global recovery trade," said Jeffrey Halley, a senior market analyst for Asia Pacific at Oanda.
The Japanese currency was fetching 115.05 per dollar, its lowest in a month and not too far from its November trough of 115.51, a four-and-a-half-year low. Halley also attributed the yen's weakness to Japanese investors deploying cash offshore.
Sterling GBP=D3 reached as high as $1.3505, its best mark in six weeks, before meeting resistance and falling back. The riskier Australian dollar AUD=D3 continued to inch higher to $0.72585.
The euro slipped 0.15% to $1.333 after touching a month high on Wednesday.
The shift away from the safe haven yen and towards the Australian dollar was also in keeping with moves in other asset classes. The S&P 500 .SPX and the Dow Jones Industrial Average .DJI closed at all-time highs on Wednesday, the latter rising for a sixth session.
But with many traders away ahead of the year-end, analysts cautioned against reading too much into the moves, and rising U.S. yields helped put a floor under the dollar, preventing sharp price swings.
Benchmark 10-year yields US10YT=RR reached 1.56% on Wednesday, the highest since Nov. 29, in U.S. trading after the Treasury sold $56 billion in seven-year notes to weak demand.
They last yielded 1.5462%. The Turkish lira TRYTOM=D3 was at 12.7 per dollar having fallen 6.9% on Wednesday in another volatile day.
Despite surging more than 50% last week following state-backed market interventions, it has lost 40% of its value this year. However, Turkey's Finance Minister Nureddin Nebati said on Wednesday that the current swings in the lira were not worrying and that it would return to normal levels.
Bitcoin BTC=BTSP steadied after two days of losses. The world's largest cryptocurrency was last around $46,700, having been trending lower since hitting an all-time high of $69,000 in November.
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