Direct answer
Shorting 2 ETH at 3,000 USDT (10x, 0.05% taker fees), a fall to 2,820 USDT nets 354.18 USDT, a return on margin of +59.03%; a rise to 3,180 USDT loses 366.18 USDT, −61.03%. On the same 6% move the loss exceeds the gain by 12.00 USDT: fees are paid whether the trade wins or loses, shrinking the gain and deepening the loss. The short breaks even at 2,997.00 USDT.
The result first
Assume a short of 2 ETH opened at 3,000 USDT: 6,000 USDT of notional, 10x leverage and 600 USDT of initial margin. Both the opening and the closing trade are taker fills at 0.05%, and funding is left out for now.
If the price falls to 2,820 USDT (−6%), the price move earns 360.00 USDT. After the opening fee of 3.00 and the closing fee of 2.82 USDT, the short nets 354.18 USDT — a return on margin of +59.03%.
If the price rises to 3,180 USDT (+6%) instead, the price move loses the same 360.00 USDT, but the closing fee is now 3.18 USDT, so fees total 6.18 USDT and the net loss is 366.18 USDT, or −61.03%. Entering both cases into the DZPTO futures PnL calculator with the side set to Short reproduces these figures.
How short PnL is calculated
A short's price PnL = (entry price − exit price) × quantity. At 2,820 that is (3,000 − 2,820) × 2 = 360 USDT; at 3,180 it is (3,000 − 3,180) × 2 = −360 USDT — the opposite sign to a long.
Fees are charged on both trades, each on the notional value at the time it executes: opening, 6,000 × 0.05% = 3.00 USDT; closing at 2,820, 5,640 × 0.05% = 2.82 USDT; closing at 3,180, 6,360 × 0.05% = 3.18 USDT. That is why a losing short pays more in fees: the higher the price climbs, the larger the notional being closed. Put the two outcomes side by side — 360 − 5.82 when it wins, 360 + 6.18 when it loses — and they differ by 5.82 + 6.18 = 12.00 USDT, exactly the fees of both cases combined.
Return on margin (ROE) = net PnL ÷ initial margin: 354.18 ÷ 600 = 59.03%, and −366.18 ÷ 600 = −61.03%. Leverage only sets the size of the denominator; it does not change the PnL in USDT.
Short and long on the same move
The same 2 ETH position at 10x with 0.05% taker fees, closed at four prices. Every cell reproduces in the futures PnL calculator by switching side and changing the exit price.
The short gains on the fall and loses on the rise, the long the opposite; but at the same exit price both pay the same fees, so what the short gains and what the long loses differ by exactly twice the fees.
| Exit (USDT) | Price move | Short net | Short ROE | Long net | Long ROE |
|---|---|---|---|---|---|
| 2,820 | −6% | gain 354.18 | +59.03% | loss 365.82 | −60.97% |
| 2,910 | −3% | gain 174.09 | +29.02% | loss 185.91 | −30.99% |
| 3,090 | +3% | loss 186.09 | −31.01% | gain 173.91 | +28.98% |
| 3,180 | +6% | loss 366.18 | −61.03% | gain 353.82 | +58.97% |
The short's break-even price
A short only starts making money below its break-even price. With fees alone, break-even = entry × (1 − opening fee rate) ÷ (1 + closing fee rate) = 3,000 × 0.9995 ÷ 1.0005 = 2,997.00 USDT, about 0.10% below entry.
That 0.10% is the short's starting line: if you expect only a 0.3% fall, roughly 0.2% of it is real profit once fees are paid.
Leverage only changes the return
At an exit of 2,820 USDT the short nets 354.18 USDT at 5x, 10x and 20x alike, because the notional is 6,000 USDT each time; only the margin and the ROE change.
The table shows why "the same call earns more at higher leverage" is an illusion: the USDT earned is identical, you have simply posted less margin — and moved liquidation much closer.
| Leverage | Initial margin (USDT) | Net PnL (USDT) | ROE |
|---|---|---|---|
| 5× | 1,200 | 354.18 | +29.52% |
| 10× | 600 | 354.18 | +59.03% |
| 20× | 300 | 354.18 | +118.06% |
Funding adds to or takes from a short
Hold the short for seven days, through 21 settlements. At a funding rate of +0.01% the short receives 6,000 × 0.01% × 21 = 12.60 USDT, and closing at 2,820 USDT nets 366.78 USDT; at −0.01% the short pays the same 12.60 USDT and nets only 341.58 USDT.
Enter the funding rate and the number of settlements in the futures PnL calculator to reproduce this. Funding is estimated on the opening notional here; the exchange charges it on the mark price at each settlement, so the real figure differs slightly.
Why short risk is lopsided
A short's gain has a ceiling — the price can only fall to zero — while its loss has none, because the price can keep rising. In practice liquidation comes first, which means that in a sharp rally the first thing to arrive may be liquidation rather than your stop.
Funding changes the result too. When the funding rate is positive, shorts receive and longs pay; when it is negative, the direction flips. In a one-way falling market the rate often turns negative, and a short held through it pays for every interval it stays open.
What to check before opening a short
Decide where the short is wrong — the price at which the thesis fails — and size the position from that stop distance, rather than starting from leverage. The calculator shows the net loss at the stop so you can confirm it fits your risk budget.
Before placing the order, check the estimated liquidation price, margin mode and your actual fee tier in the exchange's order preview. DZPTO's figures are like-for-like estimates; the account shows what is executable.
Official sources and calculation boundary
The direction of a short's PnL and fees charged on executed notional follow OKX's futures PnL rules and Binance's fee documentation. 0.05% is the Regular User taker rate for USDT-margined futures on Binance and OKX; funding is estimated on the opening notional, while exchanges charge it on the mark price at each settlement.
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Frequently asked questions
Does a short earn the same as a long on the same move?
The price-move part is the same amount for the same fall or rise, but the closing fee follows the exit price, so on a 6% move the short pays less in fees when it wins than when it loses — here it gains 354.18 and loses 366.18 USDT.
Do I need to own ETH to short it?
Not with a USDT-margined perpetual. Margin is posted in USDT; a short is simply a contract position that gains when the price falls, settled in USDT when you close it.
How is a short's break-even price calculated?
With fees alone, break-even = entry × (1 − opening fee rate) ÷ (1 + closing fee rate). Here it is 2,997.00 USDT; the short makes money only below it.
Does a short pay or receive funding?
It receives when the funding rate is positive and pays when it is negative. Held seven days at ±0.01% here, the amount either way is 12.60 USDT.