Open Position in Forex Trading Explained
By Ken Chigbo, Founder, KenMacro. Published 2026-05-13.
Quick answer
An open position is a live forex trade that has been entered but not yet closed, meaning the profit or loss remains unrealised and continues to fluctuate with market price. It ties up margin, carries overnight financing, and stays exposed to gaps until the trader manually closes it or a stop, limit, or liquidation triggers.
What is open position?
An open position is any trade that has been executed but not yet offset by a closing transaction. In forex, this means the trader has bought or sold a currency pair and still holds that exposure on the account. The position generates floating profit or loss based on the current market price versus the entry price, recalculated tick by tick. It consumes margin, accrues or pays swap interest at the daily rollover, and remains live across sessions until the trader closes it, a stop loss or take profit fires, or the broker liquidates due to insufficient margin.
How traders use open position
Retail traders monitor open positions through the terminal’s trade tab, where floating PnL, used margin, and swap charges update in real time. Risk managers track total open exposure across correlated pairs, since holding long EUR/USD and short USD/CHF is effectively double weighting the dollar leg. Institutional desks net open positions across books to calculate true directional risk rather than gross notional. Carry traders deliberately keep positions open for weeks to harvest swap differentials, while scalpers may hold an open position for seconds. Critical mechanics to watch include weekend gap risk on positions held into Friday close, swap triple charge on Wednesday for spot FX, and margin call thresholds, which on most brokers sit around 50 to 100 percent margin level depending on regulation.
Common misconceptions about open positions
Traders often assume floating profit is equivalent to realised profit, but only a closed trade locks in the result, and slippage on exit can materially change the final figure. Another misconception is that a small position cannot trigger a margin call. Leverage means even modest notional sizes can wipe an account if held through volatile releases. Finally, many believe open positions are flat over weekends. They are not: the trade is exposed to gap risk at the Sunday reopen, and any news between Friday close and Monday open can move price meaningfully against the held direction.
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Frequently asked
What is the difference between an open position and a pending order?
An open position is already live in the market with active profit or loss, having been filled at a specific entry price. A pending order is an instruction waiting at a chosen price level that has not yet executed, so it carries no market exposure, no margin consumption, and no floating PnL. The pending order becomes an open position only at the moment it triggers and fills.
How long can a forex open position stay open?
Spot forex positions can technically remain open indefinitely, provided the account maintains sufficient margin to support them. Each day at the broker’s rollover time, the position is rolled forward and a swap charge or credit is applied based on the interest rate differential between the two currencies. Some brokers impose inactivity or position duration limits, but in practice carry trades are routinely held for months.
Does an open position affect my account balance?
The account balance itself does not change while a position is open. Only the equity figure moves, reflecting balance plus floating profit or loss from all open positions. When the trade is closed, the realised result is added to or subtracted from the balance, and any accumulated swap is settled. Margin requirements remain locked against open positions and are released back to free margin upon closing.
What happens to an open position during a margin call?
When margin level falls below the broker’s margin call threshold, the trader is warned to deposit funds or reduce exposure. If equity continues falling to the stop-out level, typically between 20 and 50 percent margin level under retail regulation, the broker begins forcibly closing open positions starting with the largest losing trade until margin level is restored. This liquidation happens at prevailing market prices, often during fast moves.
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