Inside this article

An account balance answers one question: how much money has been booked to the account? Performance answers another: what did the trading activity achieve? A deposit can increase the first without improving the second. A withdrawal can reduce it without creating a trading loss. Separate these events before evaluating a strategy. Otherwise even flawless arithmetic produces a misleading conclusion because the numbers being compared describe different things. The solution starts with classification, not with a more attractive equity chart.

Keep three connected records

For a usable review, our proposed audit separates trades, external capital movements and account valuations. Executions and attributable costs belong in the first record; owner deposits and withdrawals belong in the second; timestamped balance and equity observations belong in the third. These are not three brokerage accounts. They are three views of the same economic activity. A transfer is not a winning trade merely because the balance rises, and an open position does not stop mattering because its result has not yet been realized.

Begin with a money reconciliation

Start with a deliberately simple account: no open positions, promotional credits or exceptional adjustments. Its monetary result is ending balance minus starting balance minus deposits plus withdrawals. The sign convention matters. When an export already represents withdrawals as negative numbers, adapt and document the calculation instead of subtracting the same outflow twice. This equation is an accounting check. On its own it is not a percentage return that accounts for when the additional money became available for trading.

A 90% balance increase with zero monetary profit

This is a hypothetical example, not a Disciply account result. Begin with EUR 1,000, make EUR 100 and reach EUR 1,100. Deposit another EUR 900, bringing capital to EUR 2,000. Then lose EUR 100 and finish with EUR 1,900, with every position closed. The raw balance increase is EUR 900, or 90% of the opening balance. Trading profit is instead 1,900 − 1,000 − 900 = zero. Treating the contribution as performance would attribute the owner's money to the strategy.

Why timing changes the answer

In that example, the first segment earned 10% on EUR 1,000. The second lost 5% on EUR 2,000. Geometrically linking the segments gives 1.10 × 0.95 − 1 = 4.5%. Zero monetary profit and a positive linked return are compatible: they answer different questions using different capital bases. The example assumes valuations immediately before and after the deposit, no other cash flows and costs already included. Without those assumptions, applying the same calculation to a monthly ending balance would not establish an exact result.

Process return versus the investor's money

A time-weighted return, commonly called TWR, aims to remove the influence of external cash flows by using subperiod returns. A money-weighted measure incorporates the amounts and timing of invested capital. The CFA Institute's GIPS documentation distinguishes these concepts. We use that material as a methodological reference, not as a claim that a platform complies with the standards. For a personal journal, the useful step is to name the question being measured instead of giving several incompatible percentages the same performance label.

Missing intermediate valuations are a real limitation

Starting balance, ending balance and a list of deposits may allow an appropriate monetary reconciliation, but they do not always supply an exact TWR. The account valuations at the subperiod boundaries may be missing. Do not invent them by drawing a smooth curve or moving every transfer to midnight. Mark the return unavailable, or explain the chosen approximation and its required inputs. An honest gap in a report is more useful than a percentage that looks precise but depends on undocumented estimates.

A withdrawal is not a stopped-out trade

Here is a second hypothetical case. Closed trades take an account from EUR 2,000 to EUR 2,150. The owner withdraws EUR 500, leaving EUR 1,650. Reading the balance chart as a EUR 350 trading loss is wrong: 1,650 − 2,000 + 500 = EUR 150 of profit. Classify the withdrawal as an external movement while retaining a separate view of the capital still in the account. Positive historical performance and reduced capacity to support future risk can both be true after a withdrawal.

Do not interchange balance and equity

The simple equation above used examples without open exposure. With open positions, booked balance may not capture the account's full economic value. Use a consistent valuation basis at both ends and document unrealized results, credits and other components included in the broker's equity figure. Starting with balance and ending with equity creates an unexplained change of definition. A rising equity value may contain gains that can still reverse; an unchanged balance may coexist with a material floating loss.

Use MT5 as a reconciliation reference

MetaTrader 5's official report documentation distinguishes trading results, deposits, withdrawals, balance and growth. Select the same account and time interval before comparing those reports with a journal. Read the definition of the particular field: gross profit, net result, balance and growth are not interchangeable labels. Export a manageable sample and trace individual entries. When two screens disagree, first test whether their periods or calculation bases differ. A disagreement is a question to investigate, not immediate proof that either application is broken.

Do not hide costs among external flows

Commissions, overnight financing and other charges can appear separately from position closures. Document where the journal includes them. An operating cost must not be renamed an owner withdrawal simply to improve the reported strategy return. Refunds, credits and broker corrections also deserve distinct categories and a source note. Extend the money reconciliation to show every component between the opening and closing values. Only then decide which components belong in the operating result used for the comparison.

A minimum audit card for a transfer

Our proposed record includes transaction ID, account, currency, signed amount, category, original timestamp and statement reference. Add the valuation before and after the event when available, stating whether it is balance or equity. Free-text comments can explain a correction but should not replace these fields. An identifier helps detect a duplicate import. Account identity prevents a transfer between two accounts from being reported as a gain in the receiving account and a trading loss in the sending account.

Time zones and currency units

A transfer close to midnight may fall on different calendar days on the server, statement and phone. Keep its original timestamp and explicitly choose the reporting time zone. For mixed currencies, separate conversion from trading performance: adding EUR 100 to USD 100 as though they were the same unit is not a reconciliation. Where conversion is required, record the rate, its source and the valuation time. An exchange-rate change should not silently become evidence that the trader followed the plan more consistently.

Test a journal without creating new exposure

Choose existing history containing at least one external transfer and some closed trades. Rebuild the money result in a spreadsheet, then compare account, dates, costs and currency with the journal. Import the identical sample again: neither the trades nor the transfers should double. Finally compare a reporting window ending before the deposit with one ending after it. This checks classification, record identity and time boundaries. There is no need to open real-money trades merely to manufacture test transactions for an accounting exercise.

Two misleading behavioral conclusions

A deposit after a loss can make a balance curve look healthier, but it does not erase the earlier decision. A withdrawal after a winning sequence can make the chart slope down, but it does not demonstrate revenge trading. Evaluate behavior using the documented plan, intended risk and notes recorded before the outcome. Capital movements may provide context, but they are not a reliable shortcut to psychological labels. When motivation was not recorded, preserve uncertainty rather than presenting a guess as a measured fact.

What a public performance page should explain

A transparent presentation should make its period, currency, net external flows, monetary result, return methodology and open-position treatment understandable. State whether a number is realized or includes unrealized valuations. Do not select whichever formula happens to produce the largest percentage. Comparing accounts requires consistent criteria, not matching chart colors. Data reconciliation does not guarantee a strategy will keep working, and a verified historical record is not a forecast of future profits.

Finish the review with three separate questions

Ask how much capital entered or left, what net result the trades produced, and which percentage return the available valuations actually support. Do not replace a missing answer with a raw balance change. Keep the original statement and a short method note so that next week's review does not change definitions to suit the outcome. Disciply's educational approach focuses on decisions, risk and process. Adding money to an account may change its capacity, but it cannot retrospectively improve the quality of a past trade.

Sources and scope

Sources checked on 15 October 2026: MetaTrader 5 trading reports and the GIPS Standards Handbook for Firms. The examples and audit procedure are original educational work. They do not establish GIPS compliance, certify performance or provide financial advice. We develop Disciply; this is not an independent review of our product.

Continue with the Disciply trading journal introduction or the educational blog.