Been trading options for a while and always found it hard to visualize where big OI is concentrated — most brokers just show raw numbers in a table which isn’t great for quick decisions.
I ended up building a simple tool for myself that shows OI as a visual “wall” across strikes, plus Max Pain calculation updated live — helped me a lot for identifying support/resistance zones before expiry.
Curious how others here track this — do you use Sensibull, Opstra, or something else? Also happy to share what I built if anyone wants to check it out (not selling anything, built it mainly for my own trading).