UBS upgrades this solar stock to buy, calls it a 'clear market leader' / Sun-powered street market in Huercal-Overa / Sunrun sees market opportunity after SunPower files for bankruptcy, company's shares surge / SunPower stock collapses below $1 as company halts leases, installations and shipments / Friday's analyst calls: Solar stock gets a price target increase, Nike downgrades after earnings / Goldman thinks this solar stock has more to run after an 80% rally in 2 months / Tuesday's analyst calls: E-commerce giant to rally 20%, solar stock gets a downgrade / Bank of America says this solar stock is 'firing on all cylinders' and should rally nearly 40% / Tuesday's analyst calls: Solar stock downgraded, video game maker to surge going forward / Sunrun stock could double in value as company shifts to solar energy storage, Jeffries says