/2d%20illustration%20of%20Cloud%20computing%20by%20Blackboard%20via%20Shutterstock.jpg)
Health insurance stocks have felt the squeeze from shifting policy and reimbursement signals, and investors are growing cautious about near-term earnings and margins.
UnitedHealth (UNH) sits squarely in the crosshairs. The stock is down about 46% over the past year and sank nearly 20% on Tuesday after fourth-quarter revenue missed expectations, and the company recorded multi-billion-dollar restructuring charges. The sharp selloff shows how sensitive the healthcare sector remains to any hint of margin pressure.