When you place a trade through your brokerage, you have to choose what type of order to use. The two most common are market orders and limit orders. Understanding the difference can save you money.
Market Order
A market order executes immediately at the best available price. You are saying "buy (or sell) this stock right now at whatever the current price is."
Pros: Fast execution. You are virtually guaranteed to get the trade done.
Cons: You do not control the exact price. If the stock is moving quickly, you might pay more (or sell for less) than the price you saw when you placed the order. This is called slippage.
Best for: Highly liquid stocks (like major companies) where the price difference between what you see and what you get is minimal.
Limit Order
A limit order lets you set the maximum price you are willing to pay (when buying) or the minimum price you are willing to accept (when selling). The trade only executes if the stock reaches your specified price.
Pros: You control the price. No surprises.
Cons: The trade might not execute if the stock never reaches your price. You could miss the opportunity entirely.
Best for: Less liquid stocks, volatile markets, or any time you want price certainty over speed.
Examples
Market order to buy: "Buy 10 shares of XYZ at the current market price." If XYZ is trading at $50, you will pay approximately $50 per share, but it could be $50.10 or $49.90 depending on market conditions.
Limit order to buy: "Buy 10 shares of XYZ at $49 or less." The order will only execute if the price drops to $49 or below. If it stays above $49, nothing happens.
Other Order Types
Stop order (stop-loss): Becomes a market order once a specified price is reached. Used to limit losses. "If XYZ drops to $45, sell."
Stop-limit order: Combines a stop and a limit. "If XYZ drops to $45, sell, but not for less than $44." More control but risk of non-execution.
Good-til-canceled (GTC): The order stays open until it executes or you cancel it (usually up to 60-90 days depending on your broker).
Day order: Expires at the end of the trading day if not executed.
Which Should Beginners Use?
For most beginners buying established, liquid stocks or ETFs, market orders are fine. The slippage on a major stock is usually pennies.
If you are buying less liquid stocks, making large purchases, or want precise price control, use limit orders.
The most important thing is to understand what you are choosing before you tap the button.
The Progressive Trailblazer helps you research companies before you trade them. Educational only. Not financial advice.