OI / Volume Screener

An OI/volume screener filters and sorts every contract in the market by open interest, volume and their rates of change, for quickly locating where capital is entering or leaving.

The combination of open interest and volume is the core logic: OI up with volume up usually means new money opening positions; OI down with volume up means positions closing; OI rising on muted volume can indicate block trades or passive market-maker accumulation. Either dimension alone misleads — a volume surge can be opening or closing, and only the OI change disambiguates. Set a liquidity floor when screening, since percentage change rates on small contracts distort wildly.

Tool pages combine several metrics into a filterable, sortable interface for narrowing down what to watch. They are a workflow aid, not a standalone signal.

This tool is still under development. The visual screener and the Indicators Hub directory are already usable.