Intraday Open Interest
The Intraday Open Interest chart (in Intraday analysis) shows, strike by strike, the Open Interest of options — that is, the number of open contracts — separating calls and puts. It is useful to locate the price levels where market interest is most concentrated.
Open Interest by strike: calls in green, puts in red; the dashed line marks the current price (spot).
How to read it
Section titled “How to read it”- Each bar represents a strike; its height shows the Open Interest on that strike.
- The color separates calls and puts, so you immediately see where interest concentrates.
- The vertical dashed line marks the current price (spot): this helps you judge which concentrations sit above and which below the market.
- The summary at the bottom shows call and put totals and the Put/Call ratio.
Controls
Section titled “Controls”- Strike filter (Moneyness) — limits the view to strikes within a chosen distance from the price (for example ±5%).
- Show Levels — highlights the most significant levels.
- Net positions — shows the net balance instead of the separate values.
- Rotate chart — switches the orientation of the bars.
- Screenshot and Fullscreen — save an image or view the chart full screen.
How to use it
Section titled “How to use it”Strikes with high Open Interest tend to work as reference areas: they are the levels where the market holds the largest number of open positions. Compare them with the current price to spot possible support and resistance zones.
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