The comments, made on the earnings call, overshadowed Qorvo's earnings and revenue beat for its fiscal third quarter. Moderna – Shares of the vaccine maker fell more than 2% after a downgrade to neutral from buy at Goldman Sachs. The investment firm said Moderna seems to have "limited visibility" regarding its future revenue from respiratory illness vaccines. T-Mobile US – Shares popped 6% after the telecommunications company issued upbeat full-year guidance. T-Mobile forecast adjusted EBITDA between $33.1 billion and $33.6 billion, while analysts expected $33.35 billion, according to FactSet. The company also beat both the top- and bottom-line estimates in the fourth quarter. T-Mobile earned $2.57 per share on revenue of $7.68 billion. Analysts polled by FactSet estimated earnings of $2.29 per share on $7.86 billion in revenue. Nvidia – The chip giant pulled back more than 2%, chipping away at the almost 9% gain seen in the previous session.