Calling Trade.pnl within next()

[Rstrong]

Hello,

I have a very beginner question here that I am trying to figure out.

I am trying to get a unrealized PnL per position each time next() goes through another line in its data feed. Can someone point out how I would call trade.pnl within next()?

Thanks in advance

[backtrader]

You cannot call trade.pnl

• pnl is an attribute of a Trade instance and can be queried but not called
• Trade instances are notified in notify_trade. You can keep a reference to the notified instance

But

• Trade instances are not updated with each price change, they are updated with orders (i.e.: opening a position, increasing/reducing a position, closing a position).

You can track the value of an asset with getvalue (Docs - Broker) and use the difference to the original to assess the profit and loss.

[Rstrong]

@backtrader thanks so much for the tip!