Limit order vs. market order: How they differ and which is best to use

  • By James Royal,
  • Bankrate.com
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When you place a stock trade, you have two big alternatives for how to get it done: a limit order and a market order. These two order types tell your broker exactly how to execute your trade, and by selecting the right order type, you can save money or even get more money on your trade.

Here are the differences between limit orders and market orders, and when to use each one.

Limit order vs. market order

The distinction between a market order and a limit order is fairly straightforward, but when to use them may be less so.

  • A market order instructs your broker to execute your trade of a security at the best available price at the moment you send in your order. If you’re buying, you’ll typically transact at the seller’s asking price. If you’re selling, you’ll transact at the buyer’s bidding price. The bid and the ask could differ substantially at times, and you have no control over pricing here.
  • A limit order instructs your broker to execute your trade only at the price you specify or better. If you’re selling, you will transact only if you can get your limit price or higher. If you’re buying, your trade will execute only if you can get your limit price or less. Often you can set a limit order to be valid for up to three months, though it varies by broker.

Besides these two most common order types, brokers may offer a number of other options, such as stop-loss orders or stop-limit orders. Order types differ by broker, but they all have market and limit orders.

Market orders: Advantages and disadvantages

Each order type can get your trade executed, but one may work better in a given situation than the other. Here’s when you should consider using each type.

A market order works better when:

  • You want to get the trade done now, regardless of price. It’s important to note that on thinly traded stocks, this could move the price up or down significantly.
  • You’re trading the stock of a large company. The stocks of large companies tend to be very liquid, with the bid and ask prices usually only a penny or two apart. You may get the last quoted price or even better, depending on the market at that moment.
  • You’re trading relatively few shares. If you’re buying or selling a relatively small number of shares (think a couple hundred or less), especially on a larger stock, you’re less likely to move the price than if you need to transact on thousands of shares.

However, market orders definitely have some downsides:

  • You could move the market significantly. If you use a market order and don’t check the bid and ask prices, you may get a price that’s a lot different from the current market price. This is especially true for thinly traded stocks or smaller stocks.
  • You may get a wild price. If you enter a market order outside of normal trading hours, it will execute during the next trading day. If market-moving news comes out in the interim, you may get a much different price than you first intended, if you don’t cancel the order.

Limit orders: Advantages and disadvantages

In many cases a market order will work fine for your needs, but you’ll also want to consider if you need to use a limit order, which offers some other benefits.

A limit order works better when:

  • You want a specific price. If you’re looking to get a specific price for your stock, a limit order will ensure that the trade does not happen unless you get that price or better.
  • You are able to wait for your price. If your limit price is not the market price, you’ll probably have to wait to have it filled. If the stock eventually does trade to that price, the trade can be executed.
  • You’re buying a thinly traded stock. Thinly traded stocks can bounce around from one trade to the next, so it can be useful to set a price to minimize your costs. In some cases that might save you 1 percent (maybe even more) of your total investment. That’s a significant cost, and it’s money that could go into your pocket otherwise.
  • You’re selling a high number of shares. If you’re selling a high number of shares, even a small change in the price can mean real money.
  • You don’t want to move the market (and reduce your profit). A limit order will not shift the market the way a market order might.

The downsides to limit orders can be relatively modest:

  • You may have to wait and wait for your price. Because you’re naming your price, there’s no guarantee that the trade will ever execute. Even if the security does hit your price, there may not be quite enough supply or demand to fill your order, though in this situation usually it’s merely a question of time until there is.
  • Forgotten limit orders may be executed. Because you can put in limit orders for the future — typically valid for up to three months — you could easily forget about an order and wake up one day to a surprise trade. Yes, it will execute at your order price (or better), but you may not have wanted to trade it any longer.

As a practical matter, traders may place limit orders at the currently quoted price just to ensure that their trade doesn’t move the stock price. If the trade doesn’t execute immediately, they may adjust the price up or down to get it to execute more (or less) quickly. While the net effect may be the same as a market order, it ensures the trader doesn’t execute at a wild price.

Bottom line

Your choice of market order or limit order depends on the specific circumstances of the trade, but if you’re worried about not getting a specific price, you can always use a limit order. You’ll ensure that the transaction won’t occur unless you get your price, even if it may take longer to execute.

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