In addition to these specific criteria, SpotGamma also provides four flags which characterize the executed trades:  

Sweep: Large option order that has been segmented into multiple smaller orders across different exchanges; the Sweep flag indicates that this specific trade is part of a larger trade.

Cross: Indicates when the buy and sell orders match exactly for a specific trade, meaning they cancel each other out.

Block: Privately negotiated options trade, typically large and executed outside of public markets.

Multileg: This flag indicates that the trade is part of a larger options strategy involving two or more options at once.

At the bottom of the page, you can select Save Filter to keep the selected specifications for use in the future, or Reset to clear the filters pane and set your filters again.

SpotGamma Alpha subscribers can access SpotGamma Tape here.