The Exchange P&L Report — How to Read Your Real Profit

A familiar contradiction: the operator says, "Every deal we closed this month made money." The books say the profit balance is lower than last month. Which one is lying? Neither. Both are telling the truth, and the gap between them is exactly what an exchange must learn to read: operating profit is one number, and the real month-end profit is another.

This article is about how to read an exchange's profit and loss report so you don't get fooled — not by yourself, and not by a month that merely looks good.

An exchange's profit comes from two entirely different places

Unlike a shop, an exchange's revenue is not one single thing. It has two sources whose natures differ:

• Operating profit: what comes out of the exchange business itself. Service fees (remittances and the like) and the trading spread (the difference between the buy and sell rate). This is profit you build with your own work; it is controllable and can be planned.
• FX revaluation gain and loss: what comes from rate swings on your open positions. You are holding some dollars, lira, dirhams and drachmas; when the market rate moves, the rial value of that inventory rises and falls — without you having made any deal at all.

Adding these two together is the single biggest mistake in reading an exchange's profit. Because one is the result of your skill and the other is the result of the market.

Operating profit tells you how well your exchange is working. Revaluation gain and loss tells you what the market did this month to your open positions. Managing these two is two separate skills.

Why every deal being profitable ends in lower profit

Let's look at the numbers. Suppose that in one month:

Every single deal was profitable — that 125 million is real. But over the course of the month this exchange held a significant amount of one currency, and that currency's rate fell. That 90 million revaluation loss has nothing to do with the quality of the deals; it has to do with the exchange sitting on an open position while the market moved against it.

The result: an exchange whose "every deal made money" has only 35 million in real profit. Had the rate moved the other way, the same exchange with the same deals might have shown 215 million. Work quality constant, month-end profit variable — and its variability is in the market's hands, not the operator's.

What real Net Profit means

An exchange's real net profit is this:

Operating profit (fees + spread) ± FX revaluation gain/loss on open positions = Net Profit

If your profit and loss report does not separate these two, you actually do not know how your exchange is performing. A good month may be nothing but a favorable rate swing while you think your work is excellent; a bad month may be nothing but a revaluation loss while your operations were better than ever.

That is why you should ask two separate questions:

1. Was operating profit this month better than last month? (You control this.)
2. Was revaluation this month in our favor or against us? (The market controls this, but you control the size of the open position.)

Why the separation is impossible without automatic revaluation

Here is a practical point. To see FX revaluation gain and loss separately, the system must revalue the open position of each currency at the market rate at the end of each period and record the difference from cost as a revaluation gain/loss. If this is done manually, it is either not done at all, or done late and with errors — and then operating profit and revaluation stay tangled together in one murky number.

A currency exchange accounting software that keeps the currency position and the weighted-average cost live can show these two separately. In Nexto, revaluation runs automatically overnight and the day's profit summary goes to the manager's WhatsApp group; that is, the manager sees every day how much of today's profit was operating and how much was rate effect. The profit and loss report, like the other reports, is available with full filtering and Excel and PDF export.

Common traps in reading an exchange's profit

• Lumping revaluation in with operations: if the profit figure is a single blended number, you cannot tell which part of it is durable. Operating profit is repeatable; revaluation profit is not.
• Spending unrealized revaluation gains: an open position that has profited on paper has not yet been converted to cash. Until you sell, that profit can reverse. An unrealized revaluation gain is not money in your pocket.
• Judging the operator by Net Profit: if you tie the operator's bonus or evaluation to a net profit polluted by revaluation, you are rewarding or penalizing them for market swings. The correct metric is operating profit.
• Missing the effect of a weak currency: holding a large inventory in a currency that keeps falling (or in toman during a period of inflation) means chronic revaluation loss. You only see this when revaluation is reported separately.

Checklist for reading the monthly profit and loss report

Before you say "this month was good":

1. Have you seen operating profit (fees + spread) separately from revaluation?
2. Does operating profit show a positive trend versus prior months, or was it just favorable revaluation?
3. How much of this month's profit is unrealized revaluation on open positions?
4. Was the size of each currency's open position deliberate, or did it just end up on your hands by accident?
5. If rates had moved the other way, how would this month have looked?

Every "I don't know" is a blind spot in your accounting.

Summary

An exchange's profit and loss report tells two separate stories: operating profit (your work) and FX revaluation gain/loss (the market's work on your open positions). An exchange whose every deal was profitable but that has less at month-end is a victim of revaluation loss, not weak operations. The only way to see this separation is regular revaluation and a report that does not blend the two numbers. For a deeper understanding of where the open position and revaluation come from, read managing the currency position and revaluation, and to understand how operating profit is built from the spread, read buy and sell rate and the spread.

Want to see the separated profit and loss report and automatic revaluation in action? Build a dedicated demo with sample data and see operating profit and revaluation side by side.