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Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and behavioral finance. Adam received his master's in economics from The New School for Social Research and his Ph.D. from the University of Wisconsin-Madison in sociology. He is a CFA charterholder as well as holding FINRA Series 7, 55 & 63 licenses. He currently researches and teaches economic sociology and the social studies of finance at the Hebrew University in Jerusalem.
Yarilet Perez is an experienced multimedia journalist and fact-checker with a Master of Science in Journalism. She has worked in multiple cities covering breaking news, politics, education, and more. Her expertise is in personal finance and investing, and real estate.
Investopedia / Tara Anand
Liquidity refers to the efficiency or ease with which an asset or security can be converted into ready cash without affecting its market price. The most liquid asset of all is cash itself.
In other words, liquidity describes the degree to which an asset can be quickly bought or sold in the market at a price reflecting its intrinsic value. Cash is universally considered the most liquid asset because it can most quickly and easily be converted into other assets. Tangible assets, such as real estate, fine art, and collectibles, are all relatively illiquid. Other financial assets, ranging from equities to partnership units, fall at various places on the liquidity spectrum.
For example, if a person wants a $1,000 refrigerator, cash is the asset that can most easily be used to obtain it. If that person has no cash but a rare book collection that has been appraised at $1,000, they are unlikely to find someone willing to trade them the refrigerator for their collection. Instead, they will have to sell the collection and use the cash to purchase the refrigerator. That may be fine if the person can wait for months or years to make the purchase, but it could present a problem if the person only had a few days. They may have to sell the books at a discount, instead of waiting for a buyer who was willing to pay the full value. Rare books are an example of an illiquid asset.
There are two main measures of liquidity: market liquidity and accounting liquidity.
Market liquidity refers to the extent to which a market, such as a country’s stock market or a city’s real estate market, allows assets to be bought and sold at stable, transparent prices. In the example above, the market for refrigerators in exchange for rare books is so illiquid that, for all intents and purposes, it does not exist.
The stock market, on the other hand, is characterized by higher market liquidity. If an exchange has a high volume of trade that is not dominated by selling, the price a buyer offers per share (the bid price) and the price the seller is willing to accept (the ask price) will be fairly close to each other.
Investors, then, will not have to give up unrealized gains for a quick sale. When the spread between the bid and ask prices tightens, the market is more liquid, when it grows the market instead becomes more illiquid. Markets for real estate are usually far less liquid than stock markets. The liquidity of markets for other assets, such as derivatives, contracts, currencies, or commodities, often depends on their size, and how many open exchanges exist for them to be traded on.
Accounting liquidity measures the ease with which an individual or company can meet their financial obligations with the liquid assets available to them—the ability to pay off debts as they come due.
In the example above, the rare book collector’s assets are relatively illiquid and would probably not be worth their full value of $1,000 in a pinch. In investment terms, assessing accounting liquidity means comparing liquid assets to current liabilities, or financial obligations that come due within one year.
There are a number of ratios that measure accounting liquidity, which differ in how strictly they define “liquid assets.” Analysts and investors use these to identify companies with strong liquidity. It is also considered a measure of depth.
Financial analysts look at a firm's ability to use liquid assets to cover its short-term obligations. Generally, when using these formulas, a ratio greater than one is desirable.
The current ratio is the simplest and least strict. It measures current assets (those that can reasonably be converted to cash in one year) against current liabilities. Its formula would be:
The quick ratio, or acid-test ratio, is slightly more strict. It excludes inventories and other current assets, which are not as liquid as cash and cash equivalents, accounts receivable, and short-term investments. The formula is:
A variation of the quick/acid-test ratio simply subtracts inventory from current assets, making it a bit more generous:
The cash ratio is the most exacting of the liquidity ratios. Excluding accounts receivable, as well as inventories and other current assets, it defines liquid assets strictly as cash or cash equivalents.
More than the current ratio or acid-test ratio, the cash ratio assesses an entity's ability to stay solvent in the case of an emergency—the worst-case scenario—on the grounds that even highly profitable companies can run into trouble if they do not have the liquidity to react to unforeseen events. Its formula is:
In terms of investments, equities as a class are among the most liquid assets. But not all equities are created equal when it comes to liquidity. Some shares trade more actively than others on stock exchanges, meaning there is more of a market for them. In other words, they attract greater, more consistent interest from traders and investors. These liquid stocks are usually identifiable by their daily volume, which can be in the millions, or even hundreds of millions, of shares.
For example, on April 26, 2019, 8.4 million shares of Amazon.com (AMZN) traded on the NASDAQ. While that amount may sound like good liquidity, it is still far less liquid than, say, Intel (INTC), which led the NASDAQ that day, with a volume of 72 million shares—or to Ford Motor (F), which led the New York Stock Exchange (NYSE) with a volume of 156 million shares, making it the most liquid stock in the U.S. that day.
If markets are not liquid, it becomes difficult to sell or convert assets or securities into cash. You may, for instance, own a very rare and valuable family heirloom appraised at $150,000. However, if there is not market (i.e. no buyers) for your object, then it is irrelevant since nobody will pay anywhere close to its appraised value—it is very illiquid. It may even require hiring an auction house to act as a broker and track down potentially interested parties, which will take time and incur costs.
Liquid assets, however, can be easily and quickly sold for their full value and with little cost. Companies also must hold enough liquid assets to cover their short-term obligations like bills or payroll or else face a liquidity crisis, which could lead to bankruptcy.
Cash is the most liquid asset followed by cash equivalents, which are things like money markets, CDs, or time deposits. Marketable securities such as stocks and bonds listed on exchanges are often very liquid and can be sold quickly via a broker. Gold coins and certain collectibles may also be readily sold for cash.
Securities that are traded over-the-counter (OTC) such as certain complex derivatives are often quite illiquid. For individuals, a home, a timeshare, or a car are all somewhat illiquid in that it may take several weeks to months to find a buyer, and several more weeks to finalize the transaction and receive payment. Moreover, broker fees tend to be quite large (e.g., 5-7% on average for a realtor).
The most liquid stocks tend to be those with a great deal of interest from various market actors and a lot of daily transaction volume. Such stocks will also attract a larger number of market makers who maintain a tighter two-sided market. Illiquid stocks have wider bid-ask spreads and less market depth. These names tend to be lesser-known, have lower trading volume, and often also have lower market value and volatility. Thus the stock for a large multi-national bank will tend to be more liquid than that of a small regional bank.
New York Stock Exchange. ”FORD MOTOR CO F.”
Nasdaq. "INTC Historical Data," Page 33.
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