Happening tomorrow: UnitedHealth on tap

UnitedHealth Group is set to report earnings tomorrow, and its new CEO is under pressure to show signs of stability as a DOJ investigation into its Medicare billing practices hangs over the insurer.

• CEO Stephen Hemsley — who returned to the role in the spring with Andrew Witty's sudden exit — recently pledged to "earn back your trust and your confidence."
• 📉 The stock is down about 44% this year.

What to watch: The company is expected to provide earnings guidance after suspending its forecast in May, CNBC reports.