Chart Reporter

Why does cumulative journal P&L differ from my broker balance?

By Chart Reporter Reviewed 2 min read

The short answer

Chart Reporter's cumulative net P&L plots recorded realised trade results from a zero starting point. Broker balance and equity can include opening capital, cash flows, adjustments and floating positions. Comparing those series without reconciling their components can create an apparent error.

Define the series before reading the chart

A cumulative P&L curve adds completed trade outcomes in sequence. Its zero is a reference for the selected sample, not a claim that the broker account began with no money. Changing the sample changes what is accumulated.

A broker balance starts from an account's monetary history. Live equity also responds to open positions. Deposits and withdrawals can change account values without being trading outcomes. A journal curve based on completed records therefore should not be labelled a live balance or equity curve.

Work through a simple fictional account

Suppose an account starts with 1,000 units, receives a 500-unit deposit and realises 40 units of net trade profit. A selected closed-trade P&L curve can finish at 40 while the account balance is 1,540, ignoring other adjustments. An open position can then make live equity differ from that balance again.

The 1,500-unit difference between those first two displays is not missing profit. It represents the starting money and deposit that the trade-results curve does not claim to track. Start with this component reconciliation before investigating rounding or capture errors.

Carry the distinction into risk language

A drawdown calculated from a realised P&L path describes declines in that path. It does not automatically measure the account's deepest live equity decline. Positions can experience adverse movement before closing, and cash flows can alter the equity base.

When sharing a chart, label its scope, units and included records. Use the product's cumulative net P&L terminology and avoid turning it into an account-return percentage without trustworthy opening equity and cash-flow handling. If your goal is a broker-level equity reconciliation, gather those additional inputs explicitly instead of inferring them from selected closed trades alone.

Sources and further reading

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