Open Interest · 2026-05-13
IWM Open Interest
Open Interest Stats
Showing results for IWM, 2026-05-13, calls & puts
Call Open Interest 525K
Put Open Interest 1.9M
OI Total 2.4M
Put-Call OI Ratio 3.57
Highest Open Interest Options
Showing results for IWM, 2026-05-13, calls & puts
Chart Guide
What is Open Interest?
Where the market has real money committed
Open Interest is the total number of outstanding options contracts at each strike — contracts that have been opened but not yet closed or expired. Unlike vol…
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Frequently Asked Questions
What does open interest tell you about IWM?
Open interest (OI) is the total number of outstanding option contracts that have not been settled. For IWM, high call OI at a strike signals resistance (sellers defending that level), while high put OI signals support (buyers protecting against downside). The current put-call ratio for IWM is 3.57, indicating a bearish market sentiment.
What is the put-call ratio (PCR) for IWM?
The current OI-based put-call ratio for IWM is 3.57. A PCR above 1.2 is generally considered bearish (more puts than calls), while below 0.8 is bullish (more calls than puts). Values between 0.8 and 1.2 indicate a balanced market. The current reading suggests bearish sentiment.
How do I use OI to find support and resistance for IWM?
Strike prices with the highest call open interest act as resistance — market makers are short calls there and will hedge by selling the stock as price approaches. Strike prices with the highest put OI act as support — market makers are short puts and buy stock to hedge. These levels are sometimes called the "max pain" point and OI walls. StrikeVue visualises all IWM OI levels on a single chart for easy identification.
How often is IWM open interest data updated?
IWM open interest data is refreshed every 5 minutes during United States market hours on StrikeVue. All data is free with no login required.