Changes in Stock Price

Overview

As we all know, stock prices definitely change over the course of time. Some can increase rapidly and make investors a fortune, whereas others can lose a lot of value quickly and bankrupt investors. Stock prices change because of the economics of market forces, and the supply and demand for the stock. This is all based on personal perception. If people think that a company will do better in the future, this will raise the demand and price of the stock, and if they think a company will do worse, this will lower the demand and price of the stock.

Earnings

Probably the most important factor that determines the price of a stock is its earnings. In essence, earnings are the profit that a company makes, and no matter how good a company is, if it does not make positive earnings at some point it can't survive. Companies that are traded on the stock market report their earnings four times a year, or once each quarter. Another important factor is the analyst reports. Analysts at major banks like Goldman Sachs or Merrill Lynch write analyses of various stocks based on their earnings or other factors, and their opinions carry a lot of weight in the public perception.

Sample Stock Charts

The following is a chart of Google's share price for a year after its IPO. As shown on the graph, it rapidly increased from around a hundred dollars to three hundred dollars in a short period of time. Google was reporting solid earnings and good news, and analysts were giving it good recommendations. (From Comstock in 2002)

On the other hand, the graph below shows Enron's stock price over the course of only about a month. From an initial price of $38, it dropped to a low price of only 61 cents. The series of scandals that plagued the company reduced investor confidence, and the demand for the stock dropped precipitously. (Reuters, 2005)

 

http://www.stanford.edu/~mikefan/stocks/changes.html

Every person who owns shares in a company wants it to grow

Every person who owns shares in a company wants it to grow

When investors talk about "growth", they're not talking about size.  They're talking about profitability, that is, earnings.

It means the profits are growing.  The company will earn more money this year than last year, just as it earned more money last year than the year before that.

• A company doubling its earnings in 12 months can cause a wild celebration on Wall Street, because it's very rare for a business to grow that fast.
• Big, established companies are happy to see their earnings increase by 10 to 15% a year, and
• younger, more energetic companies may be able to increase theirs by 25 to 30%. 

One way or the other, the name of the game is earnings.  That's what the shareholders are looking for, and that's what makes the stocks go up.

People who buy shares are counting on the companies to increase their earnings, and they expect that a portion of these earnings will get back to them in the form of higher stock prices.

This simple point - that the price of s stock is directly related to a company's earning power - is often overlooked, even by sophisticated investors. 

The earnings continue to rise, the stock price is destined to go up.  Maybe it won't go up right away, but eventually it will rise.

And if the earnings go down, it's pretty safe bet the price of the stock will go down.  Lower earnings make a company less valuable.

This is the starting point for the successful stockpicker.  Find companies that can grow their earnings over many years to come. 

It is not an accident that stocks in general rise in price on average of about 8% a year over the long term.  That occurs because companies in general increase their earnings at 8% a year, on average, plus they pay 3% as a dividend.

Based on these assumptions, the odds are in your favour when you invest in a representative sample of companies.  Some will do better than others, but in general, they'll increase earnings by 8% and pay you a dividend of 3%, and you'll arrive at your 11% annual gain.


Stock Price Watchers

The ticker-tape watchers begin to think stock prices have a life of their own.

• They track the ups and downs, the way a bird watcher might track a fluttering duck.
• They study the trading patterns, making charts of every zig and zag.
• They try to fathom what the "market" is doing, when they ought to be following the earnings of the companies whose stocks they own.

"Expensive Shares"

By itself, the price of a stock doesn't tell you a thing about whether you're getting a good deal.


You'll hear people say: "I am avoiding IBM, because at $100 a share it's too expensive." 

• It maybe that they don't have $100 to spend on a share of IBM, but the fact, that a share costs $100 has nothing to do with whether IBM is expensive. 
• A $150,000 Lamborghini is out of most people's price range, but for a Lamborghini, it still might not be expensive. 

Likewise, a $100 share of IBM may be a bargain, or it may not be.  It depends on IBM earnings.

• If IBM is earning $10 a share this year, then you're paying 10 times earnings when you buy a share for $100.  That's a P/E ratio of 10, which in today's market is cheap. 
• On the other hand, if IBM only earns $1 a share, then you're paying 100 times earnings when you buy that $100 share.  That's a P/E ratio of 100, which is way too much to pay for IBM.

When Stock Prices Drop, Where's the Money?

When Stock Prices Drop, Where's the Money?
by Investopedia Staff
Monday, March 16, 2009


Have you ever wondered what happened to your socks when you put them into the dryer and then never saw them again? It's an unexplained mystery that may never have an answer. Many people feel the same way when they suddenly find that their brokerage account balance has taken a nosedive. So, where did that money go? Fortunately, money that is gained or lost on a stock doesn't just disappear. Read to find out what happens to it and what causes it.

Disappearing Money

Before we get to how money disappears, it is important to understand that regardless of whether the market is in bull (appreciating) or bear (depreciating) mode, supply and demand drive the price of stocks, and fluctuations in stock prices determine whether you make money or lose it.

So, if you purchase a stock for $10 and then sell it for only $5, you will (obviously) lose $5. It may feel like that money must go to someone else, but that isn't exactly true. It doesn't go to the person who buys the stock from you. The company that issued the stock doesn't get it either. The brokerage is also left empty-handed, as you only paid it to make the transaction on your behalf. So the question remains: where did the money go?

Implicit and Explicit Value

The most straightforward answer to this question is that it actually disappeared into thin air, along with the decrease in demand for the stock, or, more specifically, the decrease in investors' favorable perception of it.

But this capacity of money to dissolve into the unknown demonstrates the complex and somewhat contradictory nature of money. Yes, money is a teaser - at once intangible, flirting with our dreams and fantasies, and concrete, the thing with which we obtain our daily bread. More precisely, this duplicity of money represents the two parts that make up a stock's market value: the implicit and explicit value.

On the one hand, money can be created or dissolved with the change in a stock's implicit value, which is determined by the personal perceptions and research of investors and analysts. For example, a pharmaceutical company with the rights to the patent for the cure for cancer may have a much higher implicit value than that of a corner store.

Depending on investors' perceptions and expectations for the stock, implicit value is based on revenues and earnings forecasts. If the implicit value undergoes a change - which, really, is generated by abstract things like faith and emotion - the stock price follows. A decrease in implicit value, for instance, leaves the owners of the stock with a loss because their asset is now worth less than its original price. Again, no one else necessarily received the money; it has been lost to investors' perceptions.

Now that we've covered the somewhat "unreal" characteristic of money, we cannot ignore how money also represents explicit value, which is the concrete worth of a company. Referred to as the accounting value (or sometimes book value), the explicit value is calculated by adding up all assets and subtracting liabilities. So, this represents the amount of money that would be left over if a company were to sell all of its assets at fair market value and then pay off all of liabilities.

But you see, without explicit value, implicit value would not exist: investors' interpretation of how well a company will make use of its explicit value is the force behind implicit value.

Disappearing Trick Revealed

For instance, in February 2009, Cisco Systems Inc. had 5.81 billion shares outstanding, which means that if the value of the shares dropped by $1, it would be the equivalent to losing more than $5.81 billion in (implicit) value. Because CSCO has many billions of dollars in concrete assets, we know that the change occurs not in explicit value, so the idea of money disappearing into thin air ironically becomes much more tangible. In essence, what's happening is that investors, analysts and market professionals are declaring that their projections for the company have narrowed. Investors are therefore not willing to pay as much for the stock as they were before.

So, faith and expectations can translate into cold hard cash, but only because of something very real: the capacity of a company to create something, whether it is a product people can use or a service people need. The better a company is at creating something, the higher the company's earnings will be and the more faith investors will have in the company.

In a bull market, there is an overall positive perception of the market's ability to keep producing and creating. Because this perception would not exist were it not for some evidence that something is being or will be created, everyone in a bull market can be making money. Of course, the exact opposite can happen in a bear market.

To sum it all up, you can think of the stock market as a huge vehicle for wealth creation and destruction.

Disappearing Socks

No one really knows why socks go into the dryer and never come out, but next time you're wondering where that stock price came from or went to, at least you can chalk it up to market perception.

http://finance.yahoo.com/focus-retirement/article/106739/When-Stock-Prices-Drop-Where's-the-Money;_ylt=AtKDegLJbLsM_eXKgk0P2zu7YWsA?mod=fidelity-buildingwealth

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