Health insurers are proposing significant raises for Obamacare premiums as a new analysis indicates a likely double-digit increase for the upcoming year. Following a substantial surge in premiums this year, experts warn that similar trends are expected to continue, with potential hikes reaching as high as 14%. As enrollment has sagged, insurers are seeking the second-highest rate increases in nearly a decade, prompting concerns for ACA Marketplace shoppers about affordability and access to healthcare.