JPMorgan analyst Paul Coster says SunEdison's (SUNE) announcement this morning that it has paid down its margin loan is a positive for both the company and TerraForm Power (TERP). The news should remove some of the technical trading that has weighed on both stocks, Coster tells investors in a research note. The analyst views potential asset sales by SunEdison, as reported by the Economic Times, as another positive since they could help overcome its near-term liquidity needs. Cotser has an Overweight rating on TerraForm and Neutral rating on SunEdison.