The price of a market that runs on
The account rarely dies from a bad read. It dies from the trade you took anyway.
A retail forex account doesn’t usually blow up on a wrong bias — it blows up on the trades you took because the pair was still moving: the revenge re-entry ten minutes after the London open stopped you out, the size doubled into an NFP print, the stop you dragged down “just this once” because you couldn’t take the loss. Across the London and New York sessions the screen is always live, and the impulse trade is always one click away.
PnL Book is a trading journal built around that fact. Tag the trades that broke your rules and it totals what each habit cost in dollars — spread and swap included. Revenge trading: −$1,840 this month is not a feeling; it’s the exact slice of your account one habit ate, priced in the same US dollars your positions settle in. For the funded crowd, the funded-trader edition maps the same numbers onto daily-loss and drawdown limits.