Wall St rises as yields ease, Moderna lifts healthcare stocks
By Sinéad Carew and Avinash
P
Wed August 19, 2026
This morning two big things happened. First, the Treasury offered substantial buy back support on the 30-year and 10-year bonds which went through the roof yesterday sending the yields to multi-decade highs. This shot inflation prospects through the roof so the offer served to bring the yields back down, which it did. This had a healthy effect on tech, pushing companies like Marvell up 9.9% though the overall chip index fell 2%.