Equity is a fancy way of referring to what is actually there. Whether it's tangible things like cash, current assets, working capital and shareholder's equity, or intangible qualities like management or brand name, equity is everything that a company has if it were to suddenly stop selling products and stop making money tomorrow.

Traditionally, investors who rely on buying companies with a substantial amount of equity to back up their value are a paranoid lot who are looking to be able to collect something in liquidation. However, as the TV-dominated mass-consumer age has helped intangibles like brand names create powerful moats around a core business, contemporary investors have begun to push the boundaries of equity by emphasizing qualities that have no tangible or concrete value, but are absolutely vital to the company as an ongoing concern.

The Balance Sheet: Cash & Working Capital
Like to buy a dollar of assets for a dollar in market value? Ben Graham did. He developed one of the premier screens for ferreting out companies with more cash on hand than their current market value. First, Graham would look at a company's cash and equivalents and short-term investments. Dividing this number by the number of shares outstanding gives a quick measure that tells you how much of the current share price consists of just the cash that the company has on hand. Buying a company with a lot of cash can yield a lot of benefits -- cash can fund product development and strategic acquisitions and can pay high-caliber executives. Even a company that might seem to have limited future prospects can offer tremendous promise if it has enough cash on hand.

Another measure of value is a company's current working capital relative to its market capitalization. Working capital is what is left after you subtract a company's current liabilities from its current assets. Working capital represents the funds that a company has ready access to for use in conducting its everyday business. If you buy a company for close to its working capital, you have essentially bought a dollar of assets for a dollar of stock price -- not a bad deal, either. Just as cash funds all sorts of good things, so does working capital.

Shareholder's Equity & Book Value
Shareholder's equity is an accounting convention that includes a company's liquid assets like cash, hard assets like real estate, as well as retained earnings. This is an overall measure of how much liquidation value a company has if all of its assets were sold off -- whether those assets are office buildings, desks, old T-shirts in inventory or replacement vacuum tubes for ENIAC systems.

Shareholder equity helps you value a company when you use it to figure out book value. Book value is literally the value of a company that can be found on the accounting ledger. To calculate book value per share, take a company's shareholder's equity and divide it by the current number of shares outstanding. If you then take the stock's current price and divide by the current book value, you have the price-to-book ratio.

Book value is a relatively straightforward concept. The closer to book value you can buy something at, the better it is. Book value is actually somewhat skeptically viewed in this day and age, since most companies have latitude in valuing their inventory, as well as inflation or deflation of real estate depending on what tax consequences the company is trying to avoid. However, with financial companies like banks, consumer loan concerns, brokerages and credit card companies, the book value is extremely relevant. For instance, in the banking industry, takeovers are often priced based on book value, with banks or savings & loans being taken over at multiples of between 1.7 to 2.0 times book value.

Another use of shareholder's equity is to determine return on equity, or ROE. Return on equity is a measure of how much in earnings a company generates in four quarters compared to its shareholder's equity. It is measured as a percentage. For instance, if XYZ Corp. made a million dollars in the past year and has a shareholder's equity of ten million, then the ROE is 10%. Some use ROE as a screen to find companies that can generate large profits with little in the way of capital investment. COCA-COLA (NYSE: KO), for instance, does not require constant spending to upgrade equipment -- the syrup-making process does not regularly move ahead by technological leaps and bounds. In fact, high ROE companies are so attractive to some investors that they will take the ROE and average it with the expected earnings growth in order to figure out a fair multiple. This is why a pharmaceutical company like MERCK (NYSE: MRK) can grow at 10% or so every year but consistently trade at 20 times earnings or more.

Intangibles
Brand is the most intangible element to a company, but quite possibly the one most important to a company's ability as an ongoing concern. If every single MCDONALD'S (NYSE:MCD) restaurant were to suddenly disappear tomorrow, the company could simply go out and get a few loans and be built back up into a world power within a few months. What is it about McDonald's that would allow it to do this? It is McDonald's presence in our collective minds -- the fact that nine out of ten people forced to name a fast food restaurant would name McDonald's without hesitating. The company has a well-known brand and this adds tremendous economic value despite the fact that it cannot be quantified.

Some investors are preoccupied by brands, particularly brands emerging in industries that have traditionally been without them. The genius of INTEL (Nasdaq: INTC) and MICROSOFT (Nasdaq: MSFT) is that they have built their company names into brands that give them an incredible edge over their competition. A brand is also transferable to other products -- the reason Microsoft can contemplate becoming a power in online banking, for instance, is because it already has incredible brand equity in applications and operating systems. It is as simple as Reese's Peanut Butter cups transferring their brand onto Reese's Pieces, creating a new product that requires minimum advertising to build up.

The real trick with brands, though, is that it takes at least competent management to unlock the value. If a brand is forced to suffer through incompetence, such as AMERICAN EXPRESS (NYSE: AXP) in the early 1990s or Coca-Cola in the early 1980s, then many can become skeptical about the value of the brand, leading them to doubt whether or not the brand value remains intact. The major buying opportunities for brands ironically comes when people stop believing in them for a few moments, forgetting that brands normally survive even the most difficult of short-term traumas.

Intangibles can also sometimes mean that a company's shares can trade at a premium to its growth rate. Thus a company with fat profit margins, a dominant market share, consistent estimate-beating performance or a debt-free balance sheet can trade at a slightly higher multiple than its growth rate would otherwise suggest. Although intangibles are difficult to quantify, it does not mean that they do not have a tremendous power over a company's share price. The only problem with a company that has a lot of intangible assets is that one danger sign can make the premium completely disappear.

The Piecemeal Company
Finally, a company can sometimes be worth more divided up rather than all in one piece. This can happen because there is a hidden asset that most people are not aware of, like land purchased in the 1980s that has been kept on the books at cost despite dramatic appreciation of the land around it, or simply because a diversified company does not produce any synergies. SEARS (NYSE: S), DEAN WITTER DISCOVER (NYSE: DWD) and ALLSTATE (NYSE: ALL) are all worth a heck of a lot more broken apart as separate companies than they ever were when they were all together. Keeping an eye out for a company that can be broken into parts worth more than the whole makes sense, especially in this day and age when so many 1970s conglomerates are crumbling into their component parts.

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