On the weekend, when opening a contract, the worst thing isn’t being half a beat late—it’s not noticing that the depth has started to thin out.

Many people only watch one thing: will it go up, will it go down, and whether to chase.

But in the weekend market, the traps that most easily catch you aren’t usually the direction call itself. Instead, after the execution environment gets worse, you still place orders with weekday “feel.”

If there are fewer orders on the order book, slippage turns into cost.

If the funding rate tilts, your position gradually gets reshaped.

If the mark price jumps a bit, the line between stop-loss and liquidation suddenly moves closer.

The same contract—across different venues—may look like the same trading pair. In reality, the execution conditions you actually get can be completely different.

That’s why I increasingly disagree with the saying that “mainstream coins can be opened almost anywhere and it’s about the same.” Direction is only the first layer. Only depth, fees, slippage, and liquidation rules determine whether this order can be held comfortably.

What Perp aggregators like Perpex truly need to improve is the step before opening: first choose the asset, then compare the conditions across different venues, and only then decide where this trade should go.

#BTC #合约