You have probably seen "perp" used a thousand times on crypto twitter without anyone bothering to explain what it actually is. A perpetual future, or perp, is the single most traded instrument in all of crypto. It is what every leverage tweet is referring to. It is what every liquidation cascade is built on. And it is structurally one of the cleanest financial instruments ever invented, even if the people trading them are not exactly known for being clean.
This is the degen explainer. No CFA-flavored prose. Just what a perp is, how it works, and what you actually need to know before you click rip.
the simple definition
A perpetual future is a contract that lets you speculate on the price of an asset with leverage, without ever owning the asset, and without an expiration date. That is the whole thing. The "perpetual" part is the key innovation: traditional futures expire on a fixed date. Perps never do. You can hold them forever, in theory, as long as you stay solvent.
Mechanically, when you "buy a perp" you are not buying anything. You are entering an agreement that pays you based on how the price of the underlying moves. Long perp goes up when price goes up. Short perp goes up when price goes down. The leverage is built in.
how it actually works
The mechanics are simpler than the jargon makes them sound. Three pieces.
- Collateral. You post some margin, usually a stablecoin like USDC. That margin is your skin in the game.
- Notional. You pick a leverage multiplier. Your notional position size is your margin times your leverage. 100 USDC at 50x is a 5000 USDC position.
- P&L. Your p&l is calculated on the notional. A 1% move in your favor on a 50x position is a 50% gain on your margin. A 2% move against you wipes out the margin entirely. That wipe-out is called liquidation.
Everything else is just plumbing around those three numbers. The plumbing matters, but the math is that small.
why perps never expire
Traditional futures expire because they were designed for physical commodities that have to be delivered. Perps were invented (originally by BitMEX in 2016) to give crypto traders the leverage of futures without the rollover headache. Instead of expiry, perps use a mechanism called the funding rate to keep the perp price close to the spot price. Funding rate is its own topic and we explain it in what is a funding rate in perps.
why it matters for traders
Perps are the only instrument that lets a small retail account take a real position on the price of an asset without needing to actually buy that asset. That has three structural consequences.
- Capital efficiency. You can run exposure with a small fraction of the underlying notional in margin.
- Symmetric direction. Longing and shorting are exactly the same operation. No locate, no borrow, no asymmetry.
- Continuous market. Perps trade 24/7. There is no close, no holidays, no settlement window.
For a degen this is heaven and napalm at the same time. The same leverage that lets you 10x a thesis lets you blow up before you have refilled your coffee.
common misconceptions
A lot of bad takes get repeated about perps. Quick clean-up.
- "Perps are scammy." Perps are a contract. The scammy part is usually the venue, not the instrument. On-chain perps on a real protocol are about as transparent as a financial product gets.
- "Higher leverage means more risk." Not exactly. Higher leverage means your margin gets wiped out by a smaller move. The risk is a function of position size relative to your account, not the leverage multiplier itself. A 5x position with all your money is way riskier than a 100x position with 1% of your money.
- "Funding rate is a fee." Funding is a payment between longs and shorts, not a fee to the platform. Sometimes you pay, sometimes you receive.
- "Perps and futures are the same." Futures expire. Perps do not. Funding replaces expiry as the mechanism that anchors the contract to spot.
cex perp vs on-chain perp
There are two flavors of perp. CEX perps live on Binance, Bybit, OKX, and their friends. They are fast, deep, and centralized. On-chain perps live on Hyperliquid, GMX, Avantis, dYdX and others. They settle on a blockchain and your collateral lives in your wallet. The trade-offs are real and we covered them in on-chain perp vs cex perp. The short version: on-chain perps give you custody and verifiability. CEX perps give you depth and (often) speed.
how to actually trade your first perp without dying
If you have never opened a perp position, here is the minimum sane checklist.
- Size your account in money you can lose. Not money you "could afford to lose". Money you can actually lose.
- Start with low leverage. 2x is plenty to feel the move. Save 100x for when you have lived through a few liquidations.
- Always know your liquidation price before you click. Most platforms show it. Look at it.
- Have a thesis with a time horizon. Perps reward patience as much as speed.
- Use stop losses or set mental stop sizes. The funding rate punishes traders who hold losers forever.
where uponly.win fits in
uponly.win is a one-tap perp arcade on Base. Behind the giant RIP button is a real perpetual contract on Avantis. We pick the pair, the side, and the leverage for you (within the bounds you set), and the order routes to a real on-chain perp market. There is no internal book, no house, no synthetic position. When you hit rip, you are opening a real perp. The arcade frame is just a more honest way to package the instrument for people who do not want to live in a twelve-tab order screen.
If you understood the words "long, short, leverage, liquidation", you are ready. The button is at uponly.win. Size accordingly. Perps are fun. They are also expensive when you forget what they actually are.