It’s widely recognized that the transaction costs incurred by investors are made up of two primary components: brokerage fees (i.e., commissions), and the bid-ask spread. While most people are familiar with brokerage fees, fewer people are familiar with the concept of the bid-ask spread.
The bid-ask spread, sometimes referred to as the bid-offer spread, refers to the difference between the prevailing price at which you could sell a particular investment (the bid price) and the price at which you could buy it (the ask price). In other words, we’re talking about the highest price that a buyer is willing to pay for an asset, and the lowest price that a seller is willing to accept.
The difference between the bid price and the ask price is the referred to as the “spread, ” and it goes to the so-called “market maker.” Market makers are firms that provide market liquidity and help to smooth out buyer/seller imbalances (and ultimately profit) by standing ready to buy assets at the bid price and to sell them at the ask price.
The reason that he bid-ask spread matters to people like you and me is that whenever you make a trade, you’re instantaneously “in the hole” by a small amount, even before we consider brokerage fees. It’s worth noting that the bid-ask spread is typically larger on thinly-traded (i.e., relatively illiquid) investments such as micro-cap stocks as compared to more widely traded (i.e., relatively liquid) investments.
Good article. How about another one that lays out step by step how to buy and sell options using a broker’s web site.
Never heard of the bid-ask spread, but interesting article nevertheless.
Not necessarily true. Example:
You want to buy 5 shares of XYZ stock at $10 a share. A seller is willing to sell you 5 shares of XYZ stock at $9.98 a share. You get your 5 shares of XYZ stock, the seller gets their money, and the broke gets the 2 cent difference.
This is true if you’re using a market order. However, if you are setting a limit order at the current end of the spread, then someone else can “pay” the spread cost. For example, if bid is 10 and ask is 10.01, you can set a buy limit at 10, which won’t get immediately filled like a market order. However, if someone else then comes and puts in a sell order at market, they could sell it to you at 10 without changing the bid-ask. Thus, you just bought at 10 and can still sell at 10.
As a basic concept, yes, but you simplified it a little too much.
Not sure I understand the “market maker”‘s role, but there is no such thing as a free-lunch, so I bet he gets burned every now and again (if the markets were “fair”).
Also, if I call my broker and tell him to sell XX shares for $10, there really is no “spread” that I’ll lose, because I set the price right? The only way my transaction goes through is if someone comes up to meet my price (and I’m only out the brokerage fee).