The chart on the left visualizes the Inflow vs Outflow of assets from and to Optimism via Stargate Bridge.

Inflow means asset being moved onto Optimism

and Outflow means asset being moved out from Optimism.

ETH Flow

The chart shows that there are more volume of ETH being bridged out of Optimism than brought into Optimism. The Weekly volume barely amount to 1 ETH per week while the outflow ranges between 500 ETH to 2000 ETH