KEY POINTS
  • Insurers face deadlines Wednesday to file their initial 2018 insurance rate requests.
  • As the deadline hits, some insurers are still weighing their options and could join or leave markets for 2018.
  • Insurers are facing uncertainty about how Republican health reform efforts will shape the individual health care insurance market next year.
A couple enrolls in Obamacare with an insurance agent in Atlanta.

While Republicans in the Senate are getting ready to unveil their health reform bill, insurers on the Obamacare exchanges have been revealing their plans for next year ahead of Wednesday's deadline to file initial 2018 rate requests.

"This may be the most closely watched rate filing since the first year of the ACA marketplaces," said Katherine Hempstead, a senior advisor at the Robert Wood Johnson Foundation. "They are rightly seen as important signals about the viability of the individual market in its current form."

Four-year-old health insurance start-up Oscar Health has decided that the Obamacare markets are still viable, and is planning to expand coverage next year.