Phio Pharmaceuticals Corp. (PHIO) Open Interest History

Open interest tracks the total number of outstanding options contracts. Rising OI alongside price moves can indicate growing commitment to the trend; declining OI suggests positions are being closed.

Phio Pharmaceuticals Corp. (PHIO) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $12.8M, listed on NASDAQ, employing roughly 5 people, carrying a beta of 0.84 to the broader market. Phio Pharmaceuticals Corp. Led by Robert J. Bitterman, public since 2012-05-10.

Open interest history tracks how outstanding options contracts change over time. No recent options activity for PHIO as of 2026-06-02; this typically reflects low options liquidity, a recently listed name, or a temporary data feed delay. Snapshot will refresh on the next active session.

Learn how open interest is reported and how to read the data →