Goldman Sachs analyst Andre Benjamin upgraded Houghton Mifflin (HMHC) to Buy saying the shares can rally on both positive estimate revisions and multiple expansion after underperforming year-to-date. After an analysis of education spending by state and subject, Benjamin believes consensus revenue estimates for Houghton are too low for 2016-2018. The analyst has a $20 price target for the shares. In a research note telling investors to buy small cap growth names that have lagged the market, Benjamin also recommends shares of Inovalon (INOV) and Instructure (INST).