a long position profits when price goes up and loses when price goes down. a short position does the opposite: it profits when price goes down and loses when price goes up. on a perpetual future, both are equally easy to open. you do not need to borrow the underlying coin to short, because the contract is synthetic. choosing a side is the most fundamental decision in any leveraged trade.
in plain english
long is the "number go up" bet. short is the "number go down" bet. that is it. on perps there is no philosophical difference between the two sides. the order book pairs every long with a short, and funding rates handle the equilibrium. shorting is not "extra advanced" or "for hedge funds only." it is one click.
payoff mechanics
with leverage L and entry price P, a price move of x percent against you eats roughly x times L percent of your collateral. the only difference between long and short is which direction "against you" points.
- long at 10x: 1 percent price drop eats 10 percent of collateral.
- short at 10x: 1 percent price rise eats 10 percent of collateral.
- long at 100x: 1 percent drop is full liquidation.
- short at 100x: 1 percent rise is full liquidation.
why both sides exist
markets need bears and bulls to function. without shorts, prices only have buy pressure and rallies overshoot wildly. shorting is a price-discovery mechanism. on perps specifically, the funding rate ties the two sides together: if everyone is long, longs pay shorts, which incentivizes traders to take the short side and balance the book.
how it shows up on uponly.win
when you tap rip, the side is randomized. you do not pick long or short. you land on one or the other and the market is your counterparty on avantis. this is intentional. uponly is an arcade, not a directional trading terminal. if you have a thesis and need to choose a side, uponly is the wrong product. if you want randomized rips at high leverage, that is the entire pitch. for context on why we designed it this way, see how uponly was built in one night.
common confusions
shorting on a perp is not "borrowing and selling" the way spot shorting works. you do not need to source the underlying asset. you simply open a short contract, and the protocol matches you against a long. when you close, no asset changes hands, just pnl. people coming from equities are often surprised by how clean perp shorting is.
- shorting on perps does not require borrowing the underlying.
- longs and shorts are symmetric from the protocol's perspective.
- funding flows from the crowded side to the lighter side.
- in a sideways market, both sides slowly lose to funding and fees.
see also
- perpetual future definition
- funding rate definition
- leverage definition
- liquidation price definition
- stop-loss vs take-profit
want to feel a long or a short without picking a side? that is literally the uponly product. open uponly, tap rip, and let the dice decide which side of the market you are on.