Market makers generally come up with their bids and offers by calculating a theoretical price for the given financial instrument and then determining how much credit or margin they need to compensate for the risk they are taking in providing quotes to the market. For example, when an investor sells a financial instrument to the market maker there is a risk that the price will decline and the market maker incurs a loss on its position. The bid-ask spread is the compensation to the market maker for the risk it takes on.
Market Making
What is market making? A market maker, also called a liquidity provider, is a firm or individual that continuously provides quotes – both bids to buy and offers to sell – for a given financial instrument, as a primary trading strategy. A market maker is generally contractually and/or legally obligated to provide quotes for set period of a trading day for a minimum size and for a maximum bid-ask spread. The market maker provides liquidity and improves the functioning of the market by making the process of finding a counterparty to trade with more efficient while also bringing down the cost of trading.
market making
What Does Market Making Mean for the Markets?
What Does Market Making Mean for the Markets?
Without market makers, investors and brokers of all shapes and sizes would have a more difficult time purchasing or selling financial instruments. In the absence of market makers, investors would need to find someone with the opposite opinion as them to trade against. This may not always be possible, meaning that investors either cannot trade or must incur more risks and expenses to do so. In contrast, when market makers are present there is counterparty with which the investor can trade at any time. On top of that, as market makers invest time and resources improving accuracy of their theoretical prices they are able to improve the market, show narrower bid-ask spreads and lower the cost of trading for all market participants.
Examples
Examples
- As an example, imagine shares on Acme Corp (maker of the finest anvils worldwide). A market maker, using various inputs, calculates the theoretical price of ACME shares to be $100. They may then be willing to buy 1000 ACME shares at $99.95 and sell 1000 shares at $100.05, and posts those quotes to a stock exchange. Now, anyone wanting to either buy or sell ACME can do so instantly at those prices with a simple set of instructions, trading with the market maker. If, during the course of a day, one person buys and one sells to the market maker, total revenue is $0.10. The more market makers that actively provide liquidity in ACME shares, the more competition there will be among them. This typically results in further narrowing of the bid-ask spread and further reduction of trading costs.
- Now, imagine a market without market makers. Anyone who has purchased a house has experienced such a market. It cannot be done instantly – far from it. Instead, you have to find someone willing to actually sell their house before you can buy, which can take weeks. This is true again when you’d like to sell your house – you have to find someone who wants to buy it and live in it, instead of trading instantly with a market maker. Instead of a fast transaction, it’s a very slow one.
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Options pricing
The Options Basics Explainer introduced the concepts of call and put options, strike price, expiry, and long or short positions in an option contract. This page looks in more detail at option pricing.
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What is an ETF? An ETF – or exchange traded fund – is a fund formed by a basket of underlying instruments that can be traded on the exchange. ETFs are often (but not always) tracking an index and following the index methodology, providing investors a low-cost and efficient way to invest in an index without having to buy all the underlying constituents.
Options
What are options? An option is a type of derivative contract that gives the holder the right to buy or sell the underlying asset at a predetermined price – the exercise or strike price – at or before a certain date. Options exist on a wide variety of underlying assets, like single stocks, indices, ETFs, bonds, currencies, commodities. These contracts can serve as tools to protect a portfolio against potential losses or to express an opinion about the direction of the market.
Put options
What do long/short positions in put options mean? In the simplest terms, there are four positions an investor can take in options: buying call options (long call), selling/writing call options (short call), buying put options (long put), and selling/writing put options (short put).
Option Greeks
The Option Greeks are a collection of variables that measure the sensitivity of option prices to changes in underlying factors. Mathematically, they are derivatives of components of option pricing models. Each factor has a Greek letter assigned to it, hence the name ‘Greeks’.
