#OrderTypes101

Here's a concise overview of key crypto order types (under 200 words):

1. **Market Order**: Buys/sells immediately at the best **current market price**. Fastest execution, but prone to **slippage** (price changes).

2. **Limit Order**: Sets a **specific price** to buy (below market) or sell (above market). Only fills *at that price or better*. Avoids slippage but may not execute.

3. **Stop-Loss (SL)**: Triggers a market/limit order when price hits a "**stop level**" to **limit losses**.

- *Stop-Market*: Sells at market price after trigger.

- *Stop-Limit*: Sells at a set limit price after trigger (risk of non-fill).

4. **Take-Profit (TP)**: Automatically sells when a **target profit price** is reached.

5. **OCO (One-Cancels-Other)**: Links two orders (e.g., SL + TP). If one executes, the other cancels.

6. **Post-Only**: Ensures the order adds liquidity (avoids taker fees, earns rebates).

7. **IOC/FOK**:

- *Immediate-or-Cancel (IOC)*: Fills partially immediately, cancels the rest.

- *Fill-or-Kill (FOK)*: Fills entirely immediately or cancels.

**Key Tips**:

- Use **limit orders** for price control; **market orders** for speed.

- Always check **liquidity** to avoid slippage.

- Combine SL + TP with **OCO** for automated risk management.

- "**Post-only**" reduces fees on maker/taker exchanges.