Check out this morning's top movers from around Wall Street, compiled by The Fly. 

HIGHER - 

• Koss Corp. (KOSS) up 9% after Bloomberg Law reported that the Patent Trial and Appeal Board declined to institute reviews of two of its patents challenged by Apple (AAPL)
• Plug Power (PLUG) up 6% after Phillips 66 (PSX) announced that the companies have signed a memorandum of understanding to collaborate on the development of low-carbon hydrogen business opportunities
• DatChat (DATS) up 5% after the company, through its media partner, entered into an agreement with Barstool Sports to launch a marketing campaign for DatChat Messenger across the Barstool Sports brand and select franchises
• SAP (SAP) up 4% after guiding to Q3 EPS above expectations and raising FY21 guidance

UP AFTER EARNINGS - 

• BlackRock (BLK) up 2%

DOWN AFTER EARNINGS -

• Delta Air Lines (DAL) down 1%

LOWER - 

• Wayfair (W) down 3% after Jefferies analyst Jonathan Matuszewski downgraded shares to Hold from Buy with a price target of $225, down from $330
• Regulus (RGLS) down 27% after announcing the prioritization of its candidate, RGLS8429, for the treatment of Autosomal Dominant Polycystic Kidney Disease
• Sun County Airlines (SNCY) down 6% after announcing an 8M share common stock offering for holders
• NeuroOne Medical Technologies (NMTC) down 24% after announcing the pricing of an underwritten registered public offering of 3.75M shares of its common stock at a price of $3.20 per share