The US dollar's share of currency reserves reported to the International Monetary Fund fell in the third quarter to a near five-year low, while the euro's share of reserves grew to its largest in almost four years, data released on Friday showed.
The Chinese yuan's share of allocated reserves shrank for the first time in the third quarter since the IMF began reporting its share of central bank holdings in the fourth quarter of 2016.
Reserves held in Japanese yen reached a 16-year peak in the third quarter, IMF data showed.
Global reserves are assets of central banks held in different currencies, primarily used to support their liabilities. Central banks sometimes use reserves to help support their respective currencies.
Total allocated reserves increased to $10.71 trillion in the third quarter from $10.51 trillion in the previous quarter.
Reserves held in US dollars rose to $6.63 trillion, or 61.94 per cent of allocated reserves, in the third quarter, from $6.56 trillion, or 62.4 per cent, in the second quarter. The share of allocated US dollar reserves declined to its smallest since the 61.27 per cent in the fourth quarter of 2013, IMF data showed.
Central banks appear to further diversify their reserves away from the greenback, which remains the world's dominant reserve currency.
The dollar edged up 0.5 per cent against a basket of major currencies in the third quarter as a strong US labor market and expectations of further interest rate increases from the Federal Reserve were offset by US-China trade tensions.
The share of allocated currency reserves held in yuan, also known as renminbi, slipped to 1.80 per cent in the third quarter from 1.84 per cent in the prior quarter.
The currency of China, the world's second biggest economy
While the dollar and yuan's shares of foreign exchange reserves contracted, the euro and yen's shares grew despite sluggish economic growth in those regions.
Ranked second behind the greenback, the euro's share of global reserves climbed to 20.48 per cent, its biggest since the fourth quarter of 2014. It was 20.25 per cent in the quarter before.
The yen's share of allocated reserves expanded to 4.98 per cent, its largest since the third quarter of 2002. The Japanese currency's share of reserves was 4.86 per cent in the second quarter.