Short interest in Tuttle Capital Pure Play Photonics ETF (BATS:FOTO) increased during the last reporting period, rising from 68.05K to 152.79K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 244.93K shares traded per day, it would take 1 day(s) for holders of this short interest to close out their positions without sending the stock sharply higher.