Order Types For Crypto Traders

Four orders, and what each one actually promises

Every crypto order is a trade-off between certainty of execution and certainty of price, and you only get one of the two. A market order guarantees execution but not price. A limit order guarantees price but not execution. A stop order becomes a market order once a trigger level trades, so it inherits the market order's promise. A stop-limit order triggers at one price and then works as a limit at another, which keeps price control and reintroduces the possibility of no fill at all.

That is the entire decision tree. Everything else is a venue-specific variation on it, and choosing deliberately between the four is one of the cheapest improvements available to a new trader.

The market order that filled 1.8% away from the screen

You want 5,000 USD of a mid-cap token. The screen shows 2.40, and the book looks like this:

A market order fills all four levels. Your average price is about 2.4335, not 2.400, so you paid 1.4% more than the quote you clicked, and the last coin cost 2.3% above it. Add the exchange taker fee of 0.1% and the true entry is roughly 1.5% worse than the screen. On a trade targeting 4%, over a third of the expected gain went before the position existed.

A limit order at 2.405 would have taken the first two levels and left the rest working. You would have bought 1,804 USD of the 5,000 you wanted, at a good price, and had to decide whether to chase. That is the trade-off stated plainly: the market order bought you certainty and charged you 1.4% for it.

Stop versus stop-limit when a wick arrives

Crypto prints wicks that traditional markets rarely produce: a 3% spike down and back in ninety seconds, often on one venue and not on others. How your protective order behaves in that minute depends entirely on which type you chose.

• Stop order. The trigger trades, it becomes a market order, and it fills into whatever depth exists during the spike. You are out, at a worse price than the trigger, sometimes much worse. But you are out.
• Stop-limit order. The trigger trades, a limit is placed, and if price is already below your limit it does not fill. You keep price control and you keep the position, which in a genuine breakdown means the loss keeps growing with no protection at all.

Neither is correct in the abstract. A stop-limit with a tight band is the order that most often leaves people unhedged in a crash, because the crash is the scenario where price runs through the band. A plain stop is the order that most often turns a planned 3% loss into a realised 5% one. The compromise most traders settle on is a plain stop for protection, placed far enough away that a routine wick does not reach it, which loops back to sizing the position from the stop distance rather than the other way round. The position size calculator is the tool for that half.