Humana’s stock looked to rally Monday. And Mizuho analyst Ann Hynes said she believes a buyout by Cigna Group is likely — it’s just a matter of timing.

Key Takeaways Discussions over Cigna's possible purchase of Humana reportedly have resumed after the two health insurers failed to strike a deal last year.Bloomberg said the talks are in their early stages.

A merger between Cigna and Humana may be under consideration again. See how the health insurance companies' assets overlap and where they diverge.