iShares S&P Mid-Cap 400 Growth ETF (IJK) 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.

iShares S&P Mid-Cap 400 Growth ETF (IJK) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $10.87B, listed on AMEX, carrying a beta of 1.09 to the broader market. The iShares S&P Mid-Cap 400 Growth ETF seeks to track the investment results of an index composed of mid-capitalization U. public since 2000-07-28.

Snapshot as of May 15, 2026.

Spot Price
$110.43
Call OI
245
Put OI
127
Total OI
372

As of May 15, 2026, iShares S&P Mid-Cap 400 Growth ETF (IJK) has 372 total contracts outstanding across all expirations. Put/call OI ratio is 0.52 (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 IJK open interest history Data Feeds Strategy Selection

Strategy selection on iShares S&P Mid-Cap 400 Growth ETF 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 20.9% and dealer gamma exposure is positive, so dealer hedging is mechanically mean-reverting. 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 IJK open interest history questions

What is the current IJK options open interest?
As of May 15, 2026, iShares S&P Mid-Cap 400 Growth ETF (IJK) has 372 total contracts outstanding across all listed expirations, split as 245 calls and 127 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 IJK put/call open interest ratio?
Put/call OI ratio of 0.52 is call-heavy, often a directional bullish or upside-speculation signal.
What does IJK 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.