1. Long Position PnL — with Real Examples
For a long position, you profit when the price rises above your entry. The gross PnL formula is:
Long Gross PnL = (Exit Price − Entry Price) × Quantity
But gross PnL only tells half the story. Below are three worked examples across major coins, showing how to go from gross to net PnL.
Calculate Your Exact PnL — With All Fees
Enter your entry, exit, quantity, leverage, and exchange to see gross and net PnL instantly.
Open PnL Calculator →2. Short Position PnL — and Why Unlimited Loss Matters
For a short position, you profit when the price falls below your entry. The gross formula reverses:
Short Gross PnL = (Entry Price − Exit Price) × Quantity
If you short 1 ETH at $3,500 and close at $3,200, gross PnL is ($3,500 − $3,200) × 1 = $300.
⚠ Critical Warning — Short Squeeze Risk: Losses Are Unlimited
A long position can lose at most 100% of your capital (the asset goes to zero). A short position has no theoretical cap on losses. If you short a memecoin at $1 and a short squeeze pushes it to $100 overnight, you lose 100× your entry — far more than your margin. This is not a theoretical scenario. The 2021 GME-style crypto squeezes (DOGE, SHIB, PEPE) liquidated thousands of overleveraged shorts. Before opening any short position, calculate your liquidation price and understand that the market can always move against you faster than you can react.
3. Fees — The Silent Profit Killer
Gross PnL looks good until you subtract fees. On small trades, fees can turn a profitable trade into a loss. On large trades, the absolute dollar amount of fees can be shocking. Every exchange charges differently, and the difference between a maker order and a taker order can be 3-5×.
| Exchange | Spot Maker | Spot Taker | Perp Maker | Perp Taker |
|---|---|---|---|---|
| Binance | 0.02% | 0.075% | 0.02% | 0.04% |
| Bybit | 0.02% | 0.10% | 0.02% | 0.055% |
| OKX | 0.02% | 0.08% | 0.02% | 0.05% |
A $10,000 round-trip trade with taker fees on Bybit costs $20 in fees alone. For a scalper making 10 such trades per day, that is $200/day in fees — or $73,000 per year. Fees are not a rounding error; they are the largest recurring cost in active trading. Always use limit orders when possible to capture maker rebates, and choose your exchange based on the fee schedule that matches your trading style. For a full comparison across all supported exchanges, use our Exchange Fee Calculator.
4. ROE vs ROI — Understanding Your True Return
This is the most commonly misunderstood concept in leveraged crypto trading. ROE (Return on Equity, or margin) and ROI (Return on Investment, or total capital) are not the same number, and confusing them is how traders deceive themselves about performance.
ROE = Net PnL / Margin × 100% controls emotional reactions — it is what you feel when your $1,000 margin position swings $500. ROI = Net PnL / Total Capital × 100% is what you actually earn relative to everything you risked. The gap between them is leverage.
| Scenario | Margin | Leverage | Price Move | Net PnL | ROE | ROI |
|---|---|---|---|---|---|---|
| ETH long, small win | $1,000 | 10x | +5% | $480 | 48% | 4.8% |
| BTC short, scalp | $5,000 | 3x | −2% | $290 | 5.8% | 5.8% |
| SOL long, high lev | $500 | 20x | −2% | −$415 | −83% | −8.3% |
The key lesson: a 48% ROE sounds impressive, but it is only 4.8% of your total capital if you could have deployed the full $10,000 position size in a spot trade. ROE helps you compare trades with different leverage; ROI tells you whether the trade was worth the opportunity cost. Before entering any leveraged position, use the PnL Calculator to see both numbers side by side.
5. Funding Costs — The Hidden Drain on Perpetual Positions
If you hold a perpetual futures position overnight, you pay or receive funding every 8 hours. For a long position during positive funding, this is a steady cost that reduces your net PnL. For a short position, it can be income — but it can also flip negative and become a cost.
This is why professional traders track funding rates as closely as they track price. A position that looks profitable on a price chart can be losing money once funding costs are factored in. Before holding any leveraged perpetual overnight, model your funding costs with the Funding Rate Calculator. For deeper understanding of how funding works, read the Funding Rate Guide.
6. Break-Even Price After Fees
Your break-even is the exit price where net PnL is exactly zero after all costs are subtracted. It is always further from your entry than the gross break-even, because fees and funding push it outward.
For a short position, the break-even is below entry by the same logic. The market must move against your fees before you can even start to profit. Before opening any trade, calculate the break-even with the PnL Calculator, then size the position using the Position Size Calculator to ensure your stop-loss stays well outside the break-even zone.
7. Common PnL Calculation Mistakes
Mistake 1: Forgetting to subtract entry AND exit fees. Many traders only subtract entry fees and are surprised when their net PnL at exit is lower than expected.
Mistake 2: Confusing ROE with ROI. A 100% ROE on a 10x leveraged position sounds like a home run — but it is only 10% of the total position size, and fees and funding have not been subtracted yet.
Mistake 3: Ignoring funding costs on perpetual positions. A trade break-even on price can be a net loss after 3 weeks of 0.01% funding payments.
Mistake 4: Calculating PnL in percentage terms without converting to dollars. A 5% gain on a $100 position is $5. A 5% gain on a $100,000 position is $5,000. The percentage obscures the absolute risk.
Mistake 5: Not tracking PnL per trade separately from portfolio PnL. A winning trade can mask a string of losing trades if you only look at the aggregate. Track each trade's gross PnL, net PnL, ROE, and fees independently to identify patterns.
Mistake 6: Using the wrong fee tier. If you trade enough volume to qualify for a VIP fee discount but forget to check your current tier, you may be overestimating costs. Use the Exchange Fee Calculator to confirm your exact fee rate.
Track Every Trade — Use the PnL Calculator
Enter entry, exit, quantity, leverage, and fee rate. See gross PnL, net PnL, ROE, and break-even in one view.
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