Market, limit, stop and stop-limit orders: what can go wrong
An order specifies what the broker should try to do. The market still determines whether an acceptable counterparty is available. That separation explains why a drawn exit line and an actual execution can differ.
One share quoted around $50
| Order | What happens in the example |
|---|---|
| Market buy | A market buy requests execution at available prices. The last traded price is historical; it is not an offer to sell you any quantity at that value. |
| Buy limit | A buy limit at $49 permits execution at $49 or lower. If sellers never accept that price, the order can remain unfilled. Partial execution is also possible. |
| Sell stop | A sell stop at $47 normally becomes a market order when the specified trigger condition is met. If the share gaps down and available buyers are near $44, the stop does not create a buyer at $47. |
| Sell stop-limit | A sell stop-limit with a $47 stop and $46 limit restricts the execution price once triggered. If trading moves directly below $46, the order may fail to sell. You can therefore remain exposed during a falling market. |
Read the order ticket twice
Check side, quantity, ticker, order type, price and duration. Ask the broker which price triggers the stop and whether the order operates outside regular hours. Broker and exchange rules differ; the platform’s label is not the whole specification.
Keep these checks in your preparation routine. In a simulated account, place a limit away from the current quote and observe the difference between accepted, partially filled, filled and cancelled.
After a cancellation request, verify the final status. A request may arrive after execution. Save the broker’s confirmation rather than assuming that clicking cancel removed the position.