Short answer: Yes. Massachusetts and Vermont merge their individual and small-group risk pools, which blends pricing across both markets.
In most states the individual and small-group markets are rated separately. Massachusetts and Vermont merge them into a single risk pool, so the experience of individual buyers and small employers is blended when setting rates. This tends to stabilize individual-market pricing while modestly affecting small-group rates. Both states also have other distinctive rules; Vermont uses community rating and Massachusetts uses a modified community rating with limited factors.