> ## Documentation Index
> Fetch the complete documentation index at: https://docs.anthid.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Supported Order Types

> Order type support varies by broker.

## Overview

Order types determine how an order is executed in the market.

Different order types provide different trade-offs between execution certainty and price control. Before submitting an intent, verify that the target broker supports the requested order type.

Requests using unsupported combinations of order type, destination, or time-in-force will be rejected.

## Broker Support

| Order Type            | Lightspeed Connect | Alpaca |
| --------------------- | ------------------ | ------ |
| Market                | ✅                  | -      |
| Limit                 | ✅                  | -      |
| Stop Market           | ✅                  | -      |
| Stop Limit            | ✅                  | -      |
| Trailing Stop         | ✅                  | -      |
| Market On Open (MOO)  | ✅                  | -      |
| Limit On Open (LOO)   | ✅                  | -      |
| Market On Close (MOC) | ✅                  | -      |
| Limit On Close (LOC)  | ✅                  | -      |

## Order Type Definitions

| Order Type              | Description                                                                                                                                |
| ----------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `Market`                | Executes immediately at the best available market price. Execution is prioritized over price.                                              |
| `Limit`                 | Executes only at the specified limit price or better. Price is prioritized over execution certainty.                                       |
| `Stop Market`           | Becomes a market order once the stop price is reached. Commonly used for risk management and stop-loss strategies.                         |
| `Stop Limit`            | Becomes a limit order once the stop price is reached. Provides price control but execution is not guaranteed.                              |
| `Trailing Stop`         | The stop price automatically adjusts as the market moves favorably. If the market reverses by the trailing amount, the order is triggered. |
| `Market On Open (MOO)`  | Executes as a market order during the market opening auction.                                                                              |
| `Limit On Open (LOO)`   | Executes during the market opening auction only if the specified limit price can be satisfied.                                             |
| `Market On Close (MOC)` | Executes as a market order during the market closing auction.                                                                              |
| `Limit On Close (LOC)`  | Executes during the market closing auction only if the specified limit price can be satisfied.                                             |

## Examples

### Market Order

Buy 100 shares of AAPL.

* Current market price is approximately \$200.
* The order executes immediately at the best available price.
* Final execution price may differ slightly from the displayed quote.

### Limit Order

Buy 100 shares of AAPL with a limit price of \$195.

* AAPL is currently trading at \$200.
* The order will not execute above \$195.
* The order remains active until filled, canceled, or expired.

### Stop Market Order

Sell 100 shares of AAPL with a stop price of \$190.

* AAPL is currently trading at \$200.
* If the market falls to \$190, the order becomes a market order.
* Execution is likely but the final price may be above or below \$190.

### Stop Limit Order

Sell 100 shares of AAPL with:

* Stop price: \$190
* Limit price: \$189

When AAPL trades at \$190:

* The order becomes a limit order.
* The order can only execute at \$189 or better.
* If the market falls rapidly below \$189, the order may never execute.

### Trailing Stop Order

Sell 100 shares of AAPL with a trailing amount of \$5.

* AAPL rises from $200 to $210.
* The stop price automatically adjusts from $195 to $205.
* If AAPL falls to \$205, the order is triggered.

### Market On Open (MOO)

Buy 100 shares of AAPL with `MOO`.

* The order participates in the opening auction.
* Execution occurs near the official opening price.
* The exact execution price is not known in advance.

### Limit On Open (LOO)

Buy 100 shares of AAPL with:

* Order Type: `LOO`

* Limit Price: \$198

* The order participates in the opening auction.

* The order executes only if shares are available at \$198 or better.

* Otherwise, the order is canceled or handled according to broker rules.

### Market On Close (MOC)

Sell 100 shares of AAPL with `MOC`.

* The order participates in the closing auction.
* Execution occurs near the official closing price.
* Commonly used by funds and benchmark-driven strategies.

### Limit On Close (LOC)

Sell 100 shares of AAPL with:

* Order Type: `LOC`

* Limit Price: \$205

* The order participates in the closing auction.

* The order executes only if \$205 or better is available.

* Otherwise, the order is not executed.

## Notes

* Broker capabilities may change without notice.
* Anthid validates broker compatibility before order submission.
* Additional exchange, routing, and account restrictions may apply.
* Some order types may only be available on live accounts.
* Opening and closing auction order types are subject to exchange-specific submission deadlines.