> ## Documentation Index
> Fetch the complete documentation index at: https://help.arcus.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# How is unrealized PnL calculated?

The difference between your entry price and the current mark price, times position size. Longs gain when the mark rises above entry; shorts gain when it falls below.

It updates continuously and feeds the account equity used for margin. It becomes realized when you close.