Catch up on today's top five analyst upgrades with this list compiled by The Fly: 1. Sarepta (SRPT) upgraded to Outperform from Neutral at Wedbush with analyst Heather Behanna saying she believes a statistically significant increase of dystrophin over baseline should be enough to secure an accelerated approval for the company's Duchenne muscular dystrophy treatment eteplirsen. Behanna raised her price target for the shares to $36 from $14. 2. Zillow (Z, ZG) upgraded to Equal Weight from Underweight at Barclays with analyst Christopher Merwin arguing that the lawsuit settlement sum is "surprisingly small" since News Corp.'s (NWSA) Move was originally seeking $2B in damages. 3. Synergy Resources (SYRG) upgraded to Overweight from Equal Weight at Stephens with analysts led by Mike Kelly saying Synergy offers top-tier growth potential, has an immaculate balance sheet and improved inventory, and recent weakness provides a compelling entry point. 4. Concho Resources (CXO) upgraded to Accumulate from Neutral at Seaport Global with analysts led by Mike Kelly saying Concho has high-quality exposure to the Delaware Basin and is poised for further credit and growth potential. 5. Noble Energy (NBL) upgraded to Buy from Neutral at Seaport Global with analysts led by Mike Kelly saying shares offer strong growth and cheap valuation versus peers with meaningful capital efficiency improvements in the DJ Basin that will improve IRRs to over 80%. This list is just a portion of The Fly's full analyst coverage. To see The Fly's full Street Research coverage,