Fortistar Sustainable Solutions Corp. (NASDAQ:FSSI) Short Interest UpdateTicker Report • over 1 year agoFortistar Sustainable Solutions Corp. (NASDAQ:FSSI Get Rating) was the recipient of a significant growth in short interest during the month of September. As of September 15th, there was short interest totalling 15,000 shares, a growth of 11.1% from the August 31st total of 13,500 shares. ...