Armata Pharmaceuticals, Inc. (ARMP) 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.
Armata Pharmaceuticals, Inc. (ARMP) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $323.1M, listed on AMEX, employing roughly 60 people, carrying a beta of 1.32 to the broader market. Armata Pharmaceuticals, Inc. Led by Deborah L. Birx, public since 1994-05-20.
Snapshot as of May 15, 2026.
- Spot Price
- $8.05
- Call OI
- 75
- Put OI
- 49
- Total OI
- 124
- Put/Call Ratio
- 0.00
As of May 15, 2026, Armata Pharmaceuticals, Inc. (ARMP) has 124 total contracts outstanding across all expirations. Put/call OI ratio is 0.65 (call-heavy positioning). Open interest reflects accumulated positions from prior sessions; persistent growth indicates sustained directional or hedging interest, while sharp drops typically mean post-expiration clean-up.
How ARMP open interest history Data Feeds Strategy Selection
Strategy selection on Armata Pharmaceuticals, Inc. options does not derive from any single metric in isolation. The open interest history view above sits inside a broader read: ATM IV currently sits at 209.8% and dealer gamma exposure is negative, so dealer hedging amplifies directional moves. Combine the open interest history data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.
Learn how open interest is reported and how to read the data →
Frequently asked ARMP open interest history questions
- What is the current ARMP options open interest?
- As of May 15, 2026, Armata Pharmaceuticals, Inc. (ARMP) has 124 total contracts outstanding across all listed expirations, split as 75 calls and 49 puts. Open interest reflects accumulated positions from prior trading sessions; it does not include today's volume until end-of-day reconciliation.
- What is the ARMP put/call open interest ratio?
- Put/call OI ratio of 0.65 is call-heavy, often a directional bullish or upside-speculation signal.
- What does ARMP open interest tell traders?
- Persistent OI growth indicates sustained directional or hedging interest; sharp drops typically mean post-expiration position cleanup. Heavy OI concentrations at specific strikes act as support and resistance levels because dealer hedging amplifies near those strikes - the gamma profile of the dealer book is concentrated there. Comparing today's volume to standing OI separates opening flow from closing flow.