# What is the Hybrid CDA Order Book?
#### Understanding Market, Limit, Stop Limit & Stop Market Orders
On **Predyx**, trading happens through a **Hybrid CLOB (Central Limit Order Book)** — meaning all buy/sell orders are matched based on price and time, just like a real exchange.
To maintain the hybrid nature, Predyx uses a toggle between Basic and Pro mode on the betslip.
The **Basic mode** is useful for normal users where they can simply input the amount of sats and buy the shares.
The **Pro mode** is for advanced traders who want to utilize all CLOB functionalities including **Real time/Limit/Stop Limit/Stop Market** transactions.
Let’s break down each order type 👇
***
#### ⚡ 1. Market Order (Fastest Execution)
**What it does:**\
Buys or sells **instantly at the best available price** - which is market probability in real time.
**How it works on Predyx:**
* Open any ‘Market’ on PREDYX
* Select **“BUY/SELL”**
* Enter number of shares
* Click **Buy/Sell**
**Best used when:**
* You want **instant entry or exit**
* Price doesn’t matter much
**Example:**
* YES price = 0.53
* You click market buy → order fills immediately around that price
👉 Market orders prioritize execution speed over price precision
***
#### 🎯 2. Limit Order (Price Control)
**What it does:**\
You set the **exact price** you want to buy/sell at.
**How it works on Predyx:**
* Select **“Pro”** Mode
* Select **“BUY/SELL”**
* Select **“Limit”**
* Set your desired price (e.g., 0.50)
* Enter shares → place order
**Best used when:**
* You want a **better entry/exit price**
* You’re okay waiting
Example:
* Current price = 0.53
* You place limit buy at 0.50
* **Order executes only if price drops to 0.50**
👉 Limit orders give control but may not execute if price isn’t reached
***
#### 🛑 3. Stop Limit Order (Precision + Protection)
**What it does:**\
Triggers a **limit order AFTER a certain price is hit.**
**Two prices involved:**
* **Stop Price (Trigger)**
* **Limit Price (Execution)**
**How it works on Predyx:**
* Select **“Stop Limit”**
* Set: Stop Price → trigger
* Set: Limit Price → actual order
* Enter shares → place order
**Best used when:**
* You want **controlled execution**
* Avoiding bad fills (slippage)
**Example:**
* YES = 0.53
* Stop = 0.60 (trigger breakout)
* Limit = 0.62\
👉 When price hits 0.60 → a limit buy at 0.62 is placed
⚠️ Risk:
* Order **may NOT execute** if price moves too fast
👉 Stop-limit gives precision but no fill guarantee
***
**🚀 4. Stop Market Order (Guaranteed Execution)**
**What it does:**\
Triggers a market order **AFTER a price is hit**
**How it works on Predyx:**
* Select **“Stop Market”**
* Set Stop Price
* Enter shares → place order
**Best used when:**
* You need **guaranteed execution**
* Protecting losses or catching breakouts
Example:
* YES = 0.53
* Stop = 0.60\
👉 When price hits 0.60 → buys instantly at market price
⚠️ Risk:
* You may get a **worse price (slippage)**
👉 Stop-market ensures execution but not price certainty
***
#### 🧠 Quick Comparison
| Order Type | Execution | Price Control | Risk |
| ----------- | ----------------- | ------------- | -------- |
| Market | Instant | ❌ Low | Slippage |
| Limit | Conditional | ✅ High | No fill |
| Stop Limit | Conditional | ✅ High | No fill |
| Stop Market | Triggered instant | ❌ Low | Slippage |
***
#### 💡 Pro Tips for Predyx Users
* **Use Market** → when speed matters
* **Use Limit** → when price matters
* **Use Stop Market** → for stop-loss / breakouts
* **Use Stop Limit** → for advanced precision trading
***
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