This might have influenced part of what is happening with the SP. (from 8/24)
............Biostage, Inc. (NASDAQ:BSTG) a biotechnology company that develops bioengineered organ implants to treat cancer, and other diseases is up 14% in pre-market trading on Thursday reaching highs of $0.38. Over the course of this trading week ( BSTG ) is up 51.39% from lows of $0.251 on Tuesday (8/22) to highs on Thursday of $0.38. The company recently announced Q2 2017 financial results on August 14th.
"In summary, the financial and clinical validation of the company has now created a funding runway through 2018," reported Jim McGorry, CEO of Biostage. "This is a material moment for Biostage as the Company has reduced its technical risk and is pursuing a speed to market strategy. We are delighted to extend Biostage's horizon with a key investment from a long-term strategic investor."