MEXC arbitrage: finding and trading cross-exchange spreads on altcoins

MEXC arbitrage is popular for a simple reason: MEXC lists an enormous number of altcoins, often earlier than larger exchanges, and a lot of those markets are thinly traded. Thin books and fast-moving prices mean MEXC regularly quotes a different price than Binance, Bybit or Gate.io for the same asset — and that difference is the trade.

The structure is the same delta-neutral idea used everywhere in cross-exchange arbitrage. When MEXC is cheaper, you buy there and short the asset on the pricier exchange with a perpetual future. When MEXC is more expensive, you do the reverse. Price direction cancels out, and you earn as the two quotes converge, minus fees on both legs and funding while the position is open.

Where do MEXC gaps actually show up? Mostly on new listings, on small-cap tokens during a sharp move, and on pairs where one side has a deep book and the other does not. The same long-tail breadth that creates the gaps also makes them fragile: a spread that looks large on screen can vanish the moment you try to fill a real size, because the book behind it is only a few hundred dollars deep.

That makes depth the most important number on any MEXC route. A quoted spread is a top-of-book figure; your fill is an average across levels. A live crypto arbitrage scanner like Arbitrex scans every pair with no whitelist, so MEXC routes show up as they open, and you can judge them on the spread you could realistically capture instead of on a headline percentage.

A sensible checklist before a MEXC position: net spread after fees on both exchanges (fee tiers differ, so use your own), the funding rate on the short leg, order book depth at your size on both sides, whether the futures contract exists and is liquid on the hedge exchange, and whether deposits and withdrawals for the token are actually open. A token you can hedge cheaply and trade at size is a route; one you cannot is a gamble.

The risks are mostly about the thin side. One leg can fill while the other slips, funding can turn against a long-held hedge, a short on a low-cap token can be squeezed toward liquidation, and exchanges sometimes suspend a token or network without warning. Keep size small on every new MEXC route, close when the spread converges rather than holding for more, and remember that a hedge you cannot exit is just a position.