Reading options flow

What flow data contains

Flow data records trades in the options market: contract, size, price relative to the bid and ask, premium spent and whether the activity looks unusual against normal volume for that contract.

It is factual and observable. What it does not contain is intent. The same print can be a directional bet, a hedge against an existing position, or one leg of a spread.

Separating signal from noise

Most option prints are unremarkable. Useful filtering focuses on activity that is large relative to that contract's own history, aggressive against the resting quote, and consistent across related strikes or expiries rather than isolated.

• Compare volume against open interest to spot genuinely new positioning.
• Aggressive execution against the ask or bid carries more information than mid-market prints.
• Single prints in isolation are weaker evidence than a repeated pattern.

Flow as context

Flow works best as corroboration for structure you already identified. If exposure marks an area as significant and flow shows meaningful positioning around it, the two agree. When they disagree, that disagreement is itself information about uncertainty.