LONDON—The dollar was buoyant on Thursday, hovering at a near three-week high as Treasury yields rose and appetite for riskier currencies dimmed, while the yen briefly surged after breaching 150 per dollar, keeping traders jittery about intervention.
The Japanese yen weakened to hit a fresh one-year low of 150.78 per dollar and was not far off the 32-year low of 151.94 it touched in October last year, which led to Japanese authorities intervening in the currency market.
