The Broker Account Balance That Isn't There Yet
A position-sizing calculation blew up. Not a wrong number — no number at all. The account had money in it, the broker knew the balance,
silent-failures
3 posts
Calculating P&L When a Trade Spans Multiple Sessions
The number in the weekly P&L digest was wrong. For about ten minutes I assumed I'd made an arithmetic mistake somewhere
When the Broker Lies: Debugging Stop Orders That Silently Fail
Part of the IBKR Saga The Python port was working. Orders were flowing. The system was live on IBKR, trading real capital with real stops,