 Shares of Teladoc Health Inc. TDOC, 9.04 rallied about 9 in trading on Monday after the company said in a securities filing that it narrowed revenue guidance for 2022 to 2.403 billion to 2.410 billion, from 2.395 billion to 2.410 billion, matching the FactSet consensus of 2.400 billion in sales for the year. William Blair analysts said the narrowed guidance is a positive announcement. 