How the Stock Market Works

http://www.straightdope.com/mailbag/mstockmarket.html

I thought I would take a stab at KC’s questions, since friedo’s answer seems to be more of a discussion of how companies work.
“What is the connection between the price of a stock on the stock market and the actual “health” of a business?”

At the most basic level, a stock price can be thought of as a prediction of how much money a shareholder can expect to receive from the stock. That prediction takes into account the time value of money (a dollar today is worth more than a dollar next year) and the riskiness of the stock. A healthy business is expected to produce larger dividends (even if, like many young companies, it is not currently paying any dividends) and to be salable for a larger amount than a troubled company.

The stock price should take account of all relevant information, so there can be many factors other than the health of the business that affect stock price. For example, if interest rates go up, then bonds will become a more attractive investment and people will sell stocks, so stock prices will go down. Or, if someone decides to buy the company by making a tender offer, the stock price will rise, even though the health of the business is unchanged.
“I understand that an IPO raises money for a company, and that shareholders then have some sort of say-so in managing the business, but after the stock is owned by someone else, why should its price on the stock market, high or low, have any bearing on whether or not the company is profitable and pays its bills? Does WidgetCo have to declare bankruptcy just because their stock tanks–couldn’t the business be doing just fine?”

Normally the stock price has little bearing on the business, beyond limiting its ability to raise additional funds by selling stock. If the stock price gets low enough, the stock may be delisted from its stock exchange, but it will not ordinarily cause the company to file for bankruptcy. Of course, if the stock price is that low, the business is probably not doing just fine.

In a few cases, companies have entered into complex arrangements that are dependent on their maintaining a high or even a rising stock price. In such a case, a dropping stock price may indeed force the company into bankruptcy. However, that is quite unusual.
“And finally, how do you become rich simply owning stock rather than speculating? Aren’t the yearly dividends a pittance compared with the purchase price?”

When you own a stock, you own both the right to receive dividends and the right to share in the future growth of the company. A company with strong growth prospects will have a relatively low dividends or no dividend at all. Many large fortunes have been amassed by buying and holding companies whose good prospects were not immediately recognized. For example, 100 shares of Home Depot would have cost you as little as $1850 (plus trading commission) on December 31, 1981. Today, as a result of stock splits, you would hold 34,172 shares, with a closing price on Friday of $32.16 per share, in addition to the dividends you would have received along the way. Of course, almost nobody thought to buy Home Depot at only $18.50 per share - only 800 shares were traded on December 31, 1981.
“If these questions don’t make sense, maybe this short, pithy question would be better. What constitutes an “economy,” and does it need a stock market?”

An economy is a system for the production, distribution, and consumption of goods and services. An economy does not have to have a stock market, and historically most economies have not. However, large, modern economies do need stock markets. Stock markets provide companies with a cheap source of financing, and they provide investors with investments that are fairly valued (at least, as compared to the alternatives) and are readily salable. These advantages are so compelling that the existence of a functioning stock market is an important measure of the functionality of an economy.
I think that answers KC’s questions, though of course he or she may have more. A few comments on friedo’s answer, which is more about companies than about the stock market:

–Friedo talks about corporations, or at one point the limited liability company. Most publicly traded companies in the United States are indeed corporations or business trusts (often used for passive investment vehicles such as mutual funds). The limited liability company, a relatively recent creation, is not suitable for public companies, though it has become extremely popular for closely held companies.

–It isn’t just France and Belgium - U.S. law also places restrictions on the sale of shares of privately held corporations. For a company to be publicly held and its shares freely tradable, it must register with the Securities and Exchange Commission, a difficult and expensive undertaking but one that virtually all large companies find well-worthwhile.

–A company is not a “person.” A person is an individual. A company is simply a group of individuals who have organized themselves to carry on business. However, a company may be treated as a person for some limited purposes (including, as friedo says, owning property, entering into contracts, bringing lawsuits, and so forth).

–The decision to pay dividends is made by the board of directors, not the shareholders. The shareholders elect the board of directors to oversee the company on their behalf. In practice, corporate management (who typically will include some directors) will propose dividend payments to the board.
What’s my claim to know about this stuff? I’m a practising securities and corporate lawyer (Harvard Law School 1984), specializing in investment management. You can take a look at my FundLaw blog/email list, which gives updates on securities law developments, at http://groups.yahoo.com/group/fundlaw/.

John Baker

“And finally, how do you become rich simply owning stock rather than speculating? Aren’t the yearly dividends a pittance compared with the purchase price?”

Sensible investing is basically about saving for retirement. If I buy $10,000 worth of stock and it pays a 3% dividend, that’s $300 a year. But when I’ve retired 30 years later, if I’ve chosen a company that grew well (and re-invested the dividends), the stock might be worth $100,000, and the dividend would be $3,000 pa.

$3,000 a year - year after year - for a $10,000 investment is pretty good. (There is inflation and so on to consider, but you see the principle.)

bolding mine.

I agree with the above 100%, but wanted to emphasise the value that liquidity has in a modern economy. That greater ease of buying and selling, coupled with a proper regulatory framework - such as that provided by a stock exchange - is what makes an economy grow.

An interesting read is Eat the rich by P.J. O’Rourke, which has a very accessible chapter on stock exchanges.

What I want to know is:
Who actually sits down at a keyboard and types in the value of the stock? Five minutes ago it was 1.25, now it is 1.35. Someone or some computer program does that. Who, and under the rules of what equation? And how often, and who inputs the parameters that effect the equation, and where can I get the source code to the program, and…

I don’t think any of the original questions were answered.

The equation for price is pretty simple. If someone buys a stock for 1.35, the price is 1.35.

And with stock markets, you bring together both investors and businesses in a way that benifits (hopefully) both. There is a cost to equity, and there are times where it is cheaper to issue debt, but there are many issues that affect why a corporation would rather issue equity. For instance, a note payable requires a payment even if you have no cash, where a dividend is usually done when there is enough cash.

Nasdaq and the various exchanges have transaction reporting plans, under which they report each trade. I believe that the trades are keyed in by the brokerage firms for Nasdaq trades and by the exchanges themselves for exchange trades. The last trade of the day is what determines the closing price for a security. Entry of these trades is purely a clerical procedure.

In addition, for Nasdaq securities, brokerage firms known as “market makers” post the price at which they will buy or sell the security. The price at which a firm will buy is called the “bid” priced, and the price at which it will sell is called the “asked” price. There is, of course, a spread, since the firms are interested in making money. Traders at the brokerage firm’s trading desk move these prices up and down over the course of the day. Trades on securities exchanges occur on the exchange floor (or, for small trades, at prices determined by what’s going on on the exchange floor), and bid and asked prices are not posted.

Re: The 1886 case where, "The court held that “equal protection of the laws” applies to artificial persons as well as natural ones. "

Actually, according to Thom Hartmann, that case said no such thing. Rather, the court reporter John C.B. Davis incorrectly posted a headline/summary to the case saying that LL Corps were persons.

Alas, since the (incorrectly reported) decision has been cited in other cases, it apparently still sets precedent.

Those more versed in the law than I can evaluate the validity of Hartmann’s claims.

flowbark, see Ed’s post in this thread.

The key point, in my view, is that the 1886 case - it’s Santa Clara County v. Southern Pac. R. Co., 118 U.S. 394 (1886), and can be found online at http://caselaw.lp.findlaw.com/scripts/getcase.pl?navby=case&court=us&vol=118&page=394 - had nothing to do with the stock market and almost nothing to do with corporate law. The limited “personhood” of corporations is quite a bit older than 1886. For example, the Supreme Court said in 1826, "That corporations are, in law, for civil purposes, deemed persons, is unquestionable. " United States v. Amedy, 24 U.S. (11 Wheat.) 392, 412 (U.S.Va. Mar 16, 1826). And it wasn’t a new thought then.

The Santa Clara case instead is about the application of the Fourteenth Amendment to the constitution. I’m not familiar with the Hartmann book, but you can find a discussion of Santa Clara in the concurring and dissenting opinions to Wheeling Steel Corp. v. Glander , 337 U.S. 562 (1949), available online at http://caselaw.lp.findlaw.com/scripts/getcase.pl?navby=search&court=US&case=/us/337/562.html.

As soon as the principle was recognized in England that a corporation could own something, the limited “personhood” of corporations had begun – which would certainly go back to the middle ages, and I wouldn’t be surprised if it could be traced back to ancient Rome (which is where all European law starts).

As soon as the principle was recognized in England that a corporation could own something, the limited “personhood” of corporations had begun – which would certainly go back to the middle ages, and I wouldn’t be surprised if it could be traced back to ancient Rome (which is where all European law starts).

As soon as the principle was recognized in England that a corporation could own something, the limited “personhood” of corporations had begun – which would certainly go back to the middle ages, and I wouldn’t be surprised if it could be traced back to ancient Rome (which is where all European law starts).

Now I understand how Eddie Murphy and Dan Ackroyd made all that money in “Trading Places” with the stock prices going down…

I for the life of me never understood how that worked. I admit I am still do not fully comprehend how they did it, but at least I think I know the gist of it.

Eddie Murphy and Dan Ackroyd were playing in the commodities market, not the stock market.

The Dukes thought that the orange juice crop report was going to show that it was a bad year for oranges and that the price of FCOJ (Frozen Concentrated Orange Juice) was going to rise (they had a fake report). So, they bought that commodity like crazy.

Once the price went up, Eddie and Dan sold short, or sold what they didn’t have, since they knew that the crops were OK and the price would drop.

Once the actual crop report came out and showed that there was plenty of oranges to make juice, the price dropped. Eddie and Dan bought back the commodities they had sold short, making a lot of money and leaving them with no net orange juice.

The Dukes tried to sell out, but in the resulting crush, their man on the floor fainted and they weren’t able to get out of their position, leaving them with a whole lot of orange juice bought at a very high price which they didn’t have the cash to cover – hence the margin call and the selling of their seat on the exchange.

The commodities exchanges make the stock exchange look really tame.