The health insurance exchanges are likely to see only modest growth in the upcoming plan year, a “bump in the road” but not a death knell for the market, according to a new report from S&P Global Ratings. S&P predicts the exchange will see from a 4 percent increase on the high end to an 8 percent decline on the lower end. S&P expects about 11.6 million to 13.3 million will be in a plan by the end of open...