The past year was marked with wide swings in the public market, influenced by a range of global and domestic factors, but according to Cohnreznick LLP (New York), health care and life sciences continue to represent the most active IPO sector. The firm, which provides accounting, tax and advisory services to middle market companies with market caps between $10 million and $2 billion post-IPO, said life sciences represented 47 percent of all middle market IPOs in 2015, with 63 IPOs in the industry as of Nov. 30.