> For the complete documentation index, see [llms.txt](https://docs.h4.world/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.h4.world/order-types.md).

# Order Types

H4 exposes several ways to place orders, but those actions resolve to a small set of exchange-side behaviors.

| Entry path                                             | Exchange-side behavior                           |
| ------------------------------------------------------ | ------------------------------------------------ |
| Market order from the controls section                 | IOC order                                        |
| Chart order resting on the passive side of the market  | GTC limit order                                  |
| Chart order crossing to the trigger side of the market | Trigger order                                    |
| Scale order                                            | Multiple smaller GTC limit and/or trigger orders |
| DOM order                                              | GTC order                                        |

### Chart-side routing rules

When an order is placed from the chart, routing depends on side and price relative to the current market:

| Scenario                     | Result          |
| ---------------------------- | --------------- |
| Buy below the current price  | GTC limit order |
| Buy above the current price  | Trigger order   |
| Sell above the current price | GTC limit order |
| Sell below the current price | Trigger order   |

All order values must be at least $10.


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