Mark-to-Market (MTM) is a method used to show the real-time profit or loss on your positions—whether they are open or closed—over a specific reporting period. Unlike traditional accounting methods, MTM does not match opening and closing trades. Instead, it assumes all positions are closed at the end of each day and reopened the next.

How MTM works
MTM calculation reflect the change in market value of your holdings on a daily basis. Even though you didn’t sell, MTM acts as if you did, and then started fresh the next day. Your MTM profit/loss is made up of two components:

MTM P/L = Position MTM + Transaction MTM - Commission

Position MTM
= (Today’s Closing Price – Previous Day’s Closing Price) × Quantity Held × Contract Multiplier

Transaction MTM
= (Today’s Closing Price – Trade Price) × Trade Quantity × Contract Multiplier

Where can you see MTM in your statement:

You can find the MTM P/L column in the Trades section of your account statement. This shows the difference between the trade price and the market’s closing price on the trade date, multiplied by quantity.

For Forex trades, the daily closing exchange rate (used in the MTM calculation) is listed in the Base Currency Exchange Rate section of your Daily Activity Statement.

When converting currencies quotes follow industry standard conventions. For example, converting EUR to USD involves trading the EUR.USD currency pair, not USD.EUR.

Forex pairs are quoted with the base currency first, in EUR.USD you are trading Euros as the base currency and USD as the quote currency.

When placing a Forex order in Mosaic or Classic TWS, you can toggle between base and quote currency:

In Mosaic:

Go to the Order Entry panel.

Click on the Quantity field.

A quantity selector will appear click to toggle from the default base currency (e.g., EUR) to the alternate currency (e.g., USD).

The value shown will automatically update based on the current exchange rate.

Adjust the amount as needed and submit your order.

In Classic TWS:

Click directly on the order line.

In the Quantity field, toggle from EUR to USD as needed.

Modify the USD quantity and place the trade.

In TWS you can also:

Click on Account tab to acess the Account Window page

Scroll down to the Market Value Real FX Balance section

Select Close currency balance to convert a single currency or Close All Non Base Currency balances to convert all

An order line will appear with default settings: Market order, Good for day order, and the current position quantity

Note, if the order is rejected due to margin requirements, you might need to change the order type to a limit order and sett an appropriate limit price

In Client Portal:

Login to Client Portal

Navigate to the Trades Tab, select Convert Currency

If applicable choose your account number from the drop down menu

Select the currency you hold and the currency you want to buy

Enter the amount you want to convert. tHE System will automatically calcuate the equivalent amount in the target currency based on currency exchange rates.

Click Preview to review

If everything is correct, click Submit

Note: The conversion will be processed as a market order, and the settlement date may vary due to time zone differences and bank holidays.

To deposit funds into your account, you must first notify Mexem of your intended deposit through the Client Portal. This ensures your funds are properly credited once received.

How to Deposit Funds:

Log in to Client Portal / Account Management

Navigate to Transfer & Pay > Transfer Funds

Click on Deposit Funds

From the dropdown menu, select the currency you are depositing (e.g., GBP, USD, EUR).

Choose the deposit method

Click the “How to” button for step-by-step instructions specific to that method.

Follow the on-screen instructions to generate your deposit notification.

This includes:
The bank account details that you will need to send the funds to
Your Mexem account reference, which must be included in the bank transfer

Important Information:

Your bank will not automatically send funds. You must initiate the transfer manually through your banking provider.

When initiating the transfer, you may need to provide:
The sending bank's account name and number
The amount being transferred
The Mexem account number or reference code
Ensure your name on the sending account matches your Mexem account name to avoid delays.

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Related sources

How do I transfer positions to Mexem?
What are the available methods for transfer of funds into my account?
What is a third party deposit?

Margin Cushion is a real-time metric that helps you monitor your account’s risk of a margin call. It shows how much Excess Liquidity you have left before your account breaches margin requirements.

How Is Margin Cushion Calculated?
Margin Cushion = Excess Liquidity ÷ Net Liquidation Value

Excess Liquidity: The funds available above your margin requirements.

Net Liquidation Value (NLV): The total value of your account if all positions were closed at market prices.

A higher percentage means you have more buffer before hitting a margin violation. A low or near-zero cushion means your account is close to a margin call.

To monitor your Margin Cushion in real time:

Open Classic TWS.

Go to the View menu and select Trader Dashboard.

Right-click on the Trader Dashboard and choose Configure.

Click Add Account Data.

In the pop-up window, scroll to the "Other" section and select "Cushion".

Click OK, then Apply, and OK again to save and close.

Your Margin Cushion will now appear directly on the dashboard.