** Shares of New Mountain Finance Corp NMFC.O down about 4% at $10
** Brokerage Bank of America double-downgrades stock to "underperform" from "buy" due to persistent profitability challenges
** Also expects a dividend cut as earnings pressure builds, leading to a likely re-rating of the stock lower
** Five of 6 brokerages rate the stock "hold" and 1 "sell"; their median PT is $11
** Including session moves, NMFC stock down 7% YTD