Short interest in KraneShares Photonic and Optical ETF (ARCA:LUMA) decreased during the last reporting period, falling from 4.41K to 1.29K. This put -% of the company's publicly available shares short.

Based on the recent average volume of 12.19K 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.