Two Ways to Place a Trade
Every trade starts with an order. The order type you choose determines the price you get — or whether you get filled at all. The two most fundamental order types are the market order and the limit order.
In PaperTrade Academy: Both order types are available when you trade. Practice using limit orders to develop price discipline before placing any real trades.
Market Orders
A market order is an instruction to buy or sell immediately at the best available current price.
Pros:
- Almost guaranteed to fill (in liquid stocks)
- Simplest to use — no price to specify
Cons:
- You don't control the price
- In fast markets, you might fill significantly worse than expected (slippage)
When to use:
- You need to enter or exit immediately (e.g., cutting a losing position)
- The stock is liquid (millions of shares traded daily) and the bid-ask spread is tiny
- Speed matters more than the exact price
Limit Orders
A limit order specifies the maximum price you'll pay (buy limit) or the minimum price you'll accept (sell limit).
Buy limit example:
- Stock trading at $52; you place a buy limit at $50
- Your order only fills if the stock reaches $50 or lower
- If the stock never falls to $50, you don't buy
Sell limit example:
- You own shares bought at $40; you place a sell limit at $48
- Your order fills only if the stock reaches $48 or higher
- If the stock never reaches $48, you hold your shares
Pros:
- You control the price — no surprises
- Protects against slippage in volatile conditions
Cons:
- May never fill if the price doesn't reach your limit
- You might miss a fast-moving trade entirely
The Bid-Ask Spread
Before placing any order, understand the spread:
| Price | Who's here | |
|---|---|---|
| Ask (Offer) | $42.05 | Lowest price sellers will accept |
| Bid | $41.98 | Highest price buyers will pay |
| Spread | $0.07 | Cost of immediacy |
A market buy order fills at the ask. A market sell fills at the bid. The spread is an implicit cost of using market orders.