yen

The US dollar posted gains against nearly all its major peers as trading kicked off in 2023 after a seasonal holiday lull. Only the Japanese yen proved stronger than the greenback among Group-of-10 currencies, with the pound, euro and Swiss franc falling sharply. That saw the Bloomberg dollar spot index climb as much as 0.9%, putting it on track for its best day since mid-December. Traders said the moves were exacerbated by thin liquidity. But it was also a reminder that the dollar’s decline in recent months — which is broadly expected to keep going this year — will not…