Pairs trading — going long one asset and short a related one — lets you profit from a relative move while cancelling out broad market direction. Learn how to size, execute, and manage a spread trade on Dexly.
A pairs trade — also called a spread trade — is a position built from two legs at once: long one asset, short a related one. You are not betting that either asset rises or falls in isolation. You are betting on the relationship between them: that the long leg outperforms the short leg.
This is the core mechanic behind most thesis trades. Once you can balance two legs cleanly, you can express almost any relative-value view — one metal against another, a tech basket against an index, a strong asset against a weak one.
When two related assets both get pulled by the same market wave, that shared move shows up in both legs. Since one leg is long and the other short, the shared component largely nets out. What is left is the difference in how the two assets moved — the spread.
A broad rally lifts both legs; the long gains and the short loses by a similar amount, so the market component nets close to zero.
What survives is the relative performance — the reason you put the trade on. If your long outperforms, the position profits.
Because the market beta is stripped out, a flat or choppy tape does not sink the trade the way it would a single long.
A pairs trade only makes sense if the two assets have a real relationship. Pairs generally come from one of three buckets:
| Pair Type | Idea | Example |
|---|---|---|
| Same Sector | Two assets driven by the same theme; you think one is stronger. | Two large-cap L1 tokens; long the one gaining share. |
| Ratio Trade | A historically mean-reverting ratio you expect to snap back. | The gold-to-silver ratio at an extreme. |
| Basket vs Benchmark | A themed basket against a broad benchmark. | A big-tech basket against a wider index. |
The rule that makes or breaks a pairs trade: balance by notional (dollar exposure), never by the number of contracts. Two assets almost never share a price, so matching units quietly turns a spread into a directional bet.
Decide the dollar exposure per leg — say $10,000 a side. This is the notional, not a unit count.
Divide the notional by each asset’s price to get the size for each leg. $10,000 of a $50 asset is 200 units; $10,000 of a $2,000 asset is 5 units.
Go long one leg and short the other at close to the same time so you are not left directional in the gap between fills.
If one leg runs, its notional grows and the spread tilts. Trim or add to restore equal dollar exposure if you want to stay neutral.
用 Dexly 交易 Hyperliquid
Because Dexly holds every market in one self-custody account with shared collateral, both legs of a pair draw on the same margin and settle in the same place. Use cross margin so the two positions offset each other and free up capital.
Market-neutral is not risk-free. A pairs trade trades directional risk for a different, subtler set of risks.
Each of these applies the same notional-balanced mechanic to a different relationship:
Long one precious metal, short the other, when the ratio hits an extreme.
Long the big-tech basket against a broader benchmark for relative value.
Long hard assets against a short dollar proxy — a macro spread.
The defensive cousin: short a perp against a spot holding you keep.
Both legs, one account, shared collateral. Pick a relationship you have a view on, size each side by notional, and open the pair from the same trading view.
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風險警告： 交易永續合約涉及重大虧損風險。請僅以您能承受損失的資金進行交易。Dexly 是非託管介面；您需自行負責管理資金和交易決策。
用 Dexly 交易 Hyperliquid
