After two consecutive years of significant rate hikes, average monthly premiums for health insurance plans purchased on the Obamacare exchange will hold steady in Florida next year, signaling stabilization in the marketplace. Premiums for Floridians on health plans purchased through the Affordable Care Act, also known as Obamacare, soared in 2018 and notched up a tick further in 2019, but a report released Friday by the Florida Office of Insurance Regulation showed no rate change on average statewide for 2020.