Stifel analyst Michael Hoffman last night upgraded Casella Waste Systems to Buy from Hold and raised his price target for the shares to $32 from $30. The stock closed yesterday up 9c to $26.39. The recent selloff in the shares provides a buying opportunity, Hoffman tells investors in a research note. Further, the analyst expects Casella will raise its 2021 free cash flow target to $60M-$70M from $50M. Fiscal 2019 should be another year of better reported price, buoyed by rising collection and disposal prices, says Hoffman. He expects annual landfill capacity increases as Casella expands into previously issued permit expansions in upstate New York. All together he sees the company's free cash flow growing 15% in fiscal 2019 with better conversion of the business model.