End-of-Day P&L Reconciliation Agent

A trader's P&L and the broker's or back office's numbers rarely agree to the dollar, and chasing breaks after the close eats the evening. This agent loads positions, fills, prices and fees from both sides, recalculates P&L by position and finds differences. Any break over 50 dollars is investigated. It looks for causes such as a missing fill, a wrong closing price, a fee difference or a corporate action, and requests confirmation when a fill exists in only one record. After each fix it recalculates and checks the position again. Breaks it cannot resolve go to a list for the trader and operations. The trader signs off on the day and approves any booking correction; the agent never books entries itself. Edge case: a stock paid a dividend, so the broker shows a price drop offset by cash, and the agent pairs the two before calling a break.