Intraday volumes chart
The Intraday volumes chart shows, strike by strike, the volume of options traded during the day, separating calls from puts. Unlike Open Interest, which counts contracts already open, volume tells you about today’s activity: where trading is concentrating in real time.
Volumes by strike: the day’s trading activity, with the current price highlighted.
Where it is
Section titled “Where it is”Side menu, Symbol → Intraday Analysis → Volumes. It refers to the active symbol. Available on the Premium and Ultra plans; it does not support futures contracts.
How to read it
Section titled “How to read it”- Each bar is a strike; its height is the volume traded on that strike.
- The colour separates calls from puts.
- The vertical dashed line marks the current price (spot).
- The summary below the chart gives the totals and the Put/Call ratio of volumes.
Controls
Section titled “Controls”- Strike filter (Moneyness) — limits the view to strikes within a chosen distance from the price, from ± 1% to ± 50%, plus All and a custom range.
- Show Levels — adds the reference levels to the chart.
- Net Positions — shows the net balance instead of the two separate series.
- Rotate chart — switches the orientation of the bars.
- Reset Zoom — returns to the full range.
- Screenshot and Fullscreen — save an image or open the chart full screen.
Settings are stored as the page layout for that symbol.
Why traders use it
Section titled “Why traders use it”Volume is the leading edge of positioning. Open Interest only updates once contracts settle, so a strike being aggressively traded today shows up in volume first and in Open Interest tomorrow. Watching where volume clusters relative to spot is therefore how you catch positioning being built, rather than reading it after the fact.
The Put/Call ratio of volumes is the intraday sentiment cue: it moves during the session, whereas the Open Interest ratio barely changes within a day.
Open Interest or volumes?
Section titled “Open Interest or volumes?”The two charts complete each other: Open Interest shows where positions are already open, volumes show where trading is happening now. A sudden concentration of volume on a strike can precede a change in Open Interest in the following days.
Common mistakes
Section titled “Common mistakes”- Reading volume without Open Interest context. A big volume day on a strike with no Open Interest is a different story from one on a heavily held strike.
- Overreacting to a single print. One large block can dominate a bar; look at the shape of the profile, not just the tallest bar.
- Comparing morning and afternoon volumes as if they were comparable. Volume accumulates through the session, so bar heights grow all day by construction.
- Trying it on a futures contract. The volumes chart is not available for futures.
Frequently asked questions
What does the intraday volumes chart show in Gaudio OTT?
The number of call and put option contracts traded during the current session, plotted strike by strike, with a dashed line at the current price and a summary giving the totals and the Put/Call ratio of volumes.
How is the volumes chart different from the Open Interest chart?
Volume counts the contracts traded today, so it shows activity as it happens. Open Interest counts the contracts currently open, so it shows accumulated positioning. Volume leads: a strike traded heavily today typically changes its Open Interest over the following days.
Which plans include the intraday volumes chart?
Premium and Ultra. It belongs to the Intraday feature group, which is not part of the Free or Strategy plans.
Does the intraday volumes chart support futures?
No. The volumes chart is not available for futures contracts and shows an explicit message on those instruments.
Why do the bars keep growing during the session?
Because volume accumulates: the chart shows the total traded since the open, so bar heights can only increase during the day. Compare the shape of the profile rather than absolute heights taken at different times.
Related pages
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