The Nitro curve
A new coin ships with a fixed supply of one billion and no presale. Price comes from a constant product over virtual reserves, which means the first buyer and the launcher pay the same opening price.
k = virtualEth × virtualTokens virtualEth = 1.2 + raised price = virtualEth ÷ (k ÷ virtualEth)
Buying moves ETH into the reserve and tokens out of it. Selling reverses the same trade at the same curve, so you can leave before redline without waiting for a counterparty.
Redline
The curve fills at 4.2 ETH. At that point the coin graduates: curve trading closes on NitroPad, the pair moves to a DEX, and the perp market keeps running with the index read from there.
The index
The perp settles against the curve price, not an external feed. Every fill on the curve writes a new point, and every open position marks to that number. Nothing sits between the trade and the settlement price.
The fuel tank
The launcher posts at least 100 USD of ETH when the market opens. That deposit is the ceiling on what traders can take out of this market, and the site shows it on every card.
Opening a position reserves a slice of the free tank as your payout cap and holds it until you close. Winners draw from the reserve, losers pay into it, and fees land in the tank as well. The launcher can top the tank up at any time and pull back whatever is not reserved.
Boost, margin and liquidation
Margin is isolated: one position cannot reach into another. Notional is margin times boost, capped at 10x.
notional = margin × boost pnl(long) = notional × (mark ÷ entry − 1) pnl(short) = notional × (1 − mark ÷ entry) liq(long) = entry × (1 − 1/boost + 0.005) liq(short) = entry × (1 + 1/boost − 0.005)
Maintenance margin sits at 0.5% of notional. The engine checks every open position after each fill on the curve, so liquidation happens on the same tick that breaks the line.
Funding
Funding follows the skew between long and short open interest and caps at 0.5% per hour in either direction. Crowded longs pay shorts. The charge settles when you close, so a balanced book costs nothing to hold.
rate = clamp((longOI − shortOI) ÷ (longOI + shortOI) × 0.25%, ±0.5%)
Fees
| Action | Cost | Where it goes |
|---|---|---|
| Launch a coin | 0.0005 ETH | Charged once, at deploy |
| Curve buy or sell | 0% | You pay the curve, nothing else |
| Open a position | 0.10% | Of notional, into the tank |
| Close a position | 0.10% | Of notional, into the tank |
| Funding | 0 to 0.25%/h | Paid between long and short, capped at 0.5% |
Run the numbers
Position calculator
Move the sliders and read where the position dies.
- Notional
- 0.5 ETH
- Liquidation move
- -19.50%
- Max profit
- 0.5 ETH
- Open fee
- 0.0005 ETH
- Round trip fee
- 0.001 ETH
- Break even move
- 0.200%
Network and contracts
NitroPad runs on Robinhood Chain, chain ID 4663, an Arbitrum Nitro L2 that pays gas in ETH. Wallet login goes through Privy, which covers browser extensions, email codes and wallets it provisions for people who have none.
Until those addresses land, balances on this site are test ETH from the faucet and every market runs the same math the contract will carry.
Risk
Leverage cuts both ways and thin curves move fast. A position at 10x dies on a move of roughly 9.5% against you. Size accordingly, and read the free tank before you open: it is the most you can win, whatever the chart does.