What actually changes from demo to live
Demo fills are simulated and losses are imaginary; live trading adds real liquidity and loss aversion. Position size is the bridge between the two.
Departments
The mechanics of execution: costs, financing, order behavior and process.
3 stories
Demo fills are simulated and losses are imaginary; live trading adds real liquidity and loss aversion. Position size is the bridge between the two.
The swap line is the rate differential between two currencies plus a broker markup. Why both sides can be negative, and why Wednesday charges three nights.
Four costs arrive on different schedules with different visibility. We convert all of them into dollars on one EUR/USD position held five nights.