Parker-Hannifin Corporation (PH) 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.
Parker-Hannifin Corporation (PH) operates in the Industrials sector, specifically the Industrial - Machinery industry, with a market capitalization near $111.25B, listed on NYSE, employing roughly 61,120 people, carrying a beta of 1.18 to the broader market. Parker-Hannifin Corporation manufactures and sells motion and control technologies and systems for various mobile, industrial, and aerospace markets worldwide. Led by Jennifer A. Parmentier, public since 1980-03-17.
Snapshot as of May 15, 2026.
- Spot Price
- $862.07
- Call OI
- 4.8K
- Put OI
- 4.5K
- Total OI
- 9.3K
- Put/Call Ratio
- 0.77
As of May 15, 2026, Parker-Hannifin Corporation (PH) has 9.3K total contracts outstanding across all expirations. Put/call OI ratio is 0.94 (balanced 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 PH open interest history Data Feeds Strategy Selection
Strategy selection on Parker-Hannifin Corporation 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 28.4% 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 PH open interest history questions
- What is the current PH options open interest?
- As of May 15, 2026, Parker-Hannifin Corporation (PH) has 9.3K total contracts outstanding across all listed expirations, split as 4.8K calls and 4.5K 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 PH put/call open interest ratio?
- Put/call OI ratio of 0.94 is balanced.
- What does PH 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.