How to understand the difference between realized and unrealized PnL on Binance Futures?

Definition and Core Distinction

1. Realized PnL refers to the profit or loss that becomes fixed and irreversible after a position is fully closed on Binance Futures.

2. Unrealized PnL represents the fluctuating, theoretical gain or loss of an open position based on the current mark price versus the entry price.

3. Realized PnL directly impacts wallet balance and is reflected in transaction history with timestamps and trade IDs.

4. Unrealized PnL does not alter available margin or equity until the position is liquidated or manually closed.

5. Both values are calculated using the same contract specifications — including contract multiplier, leverage, and settlement currency — but operate on different lifecycle stages.

Calculation Mechanics on Binance Futures

1. For long positions, unrealized PnL = (Mark Price − Entry Price) × Position Size × Contract Multiplier.

2. For short positions, unrealized PnL = (Entry Price − Mark Price) × Position Size × Contract Multiplier.

3. Realized PnL includes funding fees paid or received during the holding period, which are settled every 8 hours and added to the final settlement amount.

4. Binance uses mark price — derived from underlying spot index and decaying funding basis — rather than last traded price to prevent manipulation-induced liquidations.

5. When partial closing occurs, FIFO logic applies: the earliest opened contracts within the same symbol and margin type are settled first, affecting average entry price recalculations.

Impact on Margin and Risk Management

1. Unrealized PnL continuously updates equity in real time, thereby influencing maintenance margin ratio and liquidation thresholds.

2. A negative unrealized PnL reduces available margin, potentially triggering auto-deleveraging if isolated margin mode is active.

3. Realized PnL contributes to initial margin for new positions only after the trade execution is confirmed and recorded in the futures wallet.

4. In cross-margin mode, unrealized losses on one position can draw from equity generated by profits on other open positions, increasing systemic exposure.

5. Funding fee accruals embedded in realized PnL affect net return calculations, especially in high-frequency or multi-day carry trades.

FIFO-Based Average Entry Price Determination

1. Each new order adds a layer to the position stack, preserving timestamp, size, and effective entry price.

2. When reducing position size, Binance deducts volume starting from the oldest layer, preserving the chronological integrity of cost basis.

3. The average entry price for remaining open volume is recalculated as a weighted mean across surviving layers, not a simple arithmetic average.

4. This method prevents artificial smoothing of cost basis and ensures tax-reporting consistency with regulatory FIFO requirements in multiple jurisdictions.

5. Users cannot override FIFO behavior; it is hardcoded into the matching engine and visible via the position history API endpoint /fapi/v1/positionRisk.

Frequently Asked Questions

Q: Does unrealized PnL include commission fees?No. Commission fees are deducted only upon order execution and appear separately in realized PnL after position closure.

Q: Why does unrealized PnL sometimes show zero while the position remains open?This occurs when the mark price equals the average entry price — common during consolidation phases or immediately after opening a position at prevailing market rate.

Q: Can unrealized PnL turn positive again after hitting liquidation?No. Liquidation terminates the position instantly; any residual unrealized value is nullified and replaced by a finalized realized PnL entry reflecting forced exit price.

Q: Is funding fee included in unrealized PnL before settlement?No. Funding fees are accrued but remain off-ledger until each 8-hour settlement window closes, at which point they flow into realized PnL.