Molina reports 630K exchange QHPs, up 2.4x over Q1 2015 (+ some Humana/Cigna data)
Thanks to Adam Cancryn for calling my attention to Molina's quarterly earnings report, which has this rather eye-opening section:
Unlike Centene, which saw massive growth primarily due to their buyout of HealthNet, I don't think Molina merged with anyone this year; if they did, please let me know in the comments. The only other factor I can think of is that they may have simply expanded into a lot of new states this year? Anyway, that's where things stand.