Partial fill — a common practice on the MT4 platform when using No Dealing Desk execution. Partial fills occur when a market place does not have sufficient volume of the instrument to open or close a trade due to low liquidity.

The round-turn commission is charged proportionally to the volume filled.

Example 1: Partial fill of the Limit order

A client placed a Buy Limit order (#22834047) for 1000 lots with the price of 0.97093. As soon as the Limit order price is reached the execution of the order #22834047 begins. At the time the ECN does not have on the market a matching counter-order of 1000 lots so the order #22834047 is being executed partially and the volume of the order decreases:

With this the client's order of 1000 lots has been filled by 8 orders gradually as they have been placed at the Limit Price or better by other market participants.

Example 2: Partial fill of the Market order

A client placed a Market Sell order (#22833906) for 1000 lots. Market orders are executed immediately at the available volume and market execution prices can differ from currently available quotes. The order is being filled partially as there was not sufficient volume on the instrument within the maximum allowable slippage value.

Considering the slippage control mechanism, the order #22833906 was closed partially in the volume of 561.34 lots. The remaining order volume is cancelled.

Example 3: Partial close of the order by Take Profit

A client placed a Buy order (#22833631) at 1.22711 with the volume of 315.45 lots and set the Take Profit level at 1.22716. When the best Bid price reached the TP level the ECN market place did not have a matching counter-order of 315.45 lots but only of 190.69 lots. As a result the order #22833631 was closed partially in the volume of 190.69 lots and the remaining amount was reopened as the new order #22833640 with the same parameters as the order #22833631. The new order #22833640 was closed in full volume when the price reached the TP level. Information about both closed orders with the corresponding comments is recorded in the Account History tab of the Terminal window.

Example 4: Partial close of the Market order

A client has a Buy order (#22833497) of the volume of 455.34 lots opened at 1.22699 and decides to close it in full volume. But after client pressed the "Close #22833619... by Market" the Off quotes error appeared and to the Mailbox tab of the Terminal was sent a message about partial execution of 384.27 lots. In the Account History tab of the Terminal Window the partial execution is recorded with the different order number (#22833952) and the corresponding comments.