Sphere Entertainment is trading 4.1% lower at $128.93 amid broader pressure from surging Treasury yields, with no clear company-specific catalyst identified. - Reuters reported the 10-year yield touched 5.31% on October 1, its highest since 2007, as investors braced for higher interest rates. - The major U.S. indexes were modestly lower, but none fell more than 0.5%. - Sphere Entertainment’s investor-relations page lists second-quarter results from July 30, not a new October 1 catalyst.