So you want to invest in ASX shares

Keen to make a fortune betting on ASX shares? Before diving in, find out about the basic principles that have been behind the success of many of the very best investors.

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Why invest in shares at all? That seems like a pretty reasonable place to start for those thinking about equity investing.

Of course the easy answer to that is "making money." And in most cases, it'd more specifically be "making more money." After all, we could all just leave our money in the bank and hope that the fixed return will be enough to allow us to retire someday (cough, unlikely, cough).

Here are two very basic realities of investing that will help with pretty much any specific investing strategy you choose.

Before we begin: The semantics of investing
The word "investing" gets thrown around an awful lot, and it makes sense to make sure we're on the same page when we use that word.

Merriam-Webster defines "invest" as simply "to commit (money) in order to earn a financial return."

That's a fine definition, but we're going to be a bit more specific, particularly when it comes to time frame. When discussing the sharemarket, we use the word "invest" when talking about committing money to an investment over a significant period of time — rarely less than a year and generally three years or longer.

Conversely, when someone is buying a share with the expectation to sell it in a matter of months, days, or even minutes, we usually opt for the word "trading" over "investing."

This may seem nitpicky, but it will increasingly make sense as you learn more about investing. Investing luminary and Warren Buffett's guru, Benjamin Graham, liked to say that "in the short run, the market is a voting machine, but in the long run it is a weighing machine." That is, over short time frames, investors' emotions can push around share prices in ways that make no sense, but over longer stretches, share prices move in ways that are more logical. For that reason, we like to stick to the long run.

Now, without further ado, on to the good stuff.

Behind the paper curtain: Investing in a business
The first thing you need to remember when investing is that you're investing in a business. Sure, what you're actually buying is a slip of paper (or an electronic book entry as the case may be), but what that slip represents is an ownership stake in the company in question.

Publicly traded companies come in all shapes and sizes, so an illustration may be helpful here.

Woolworths (ASX: WOW)) is a relatively easy one. The company owns supermarkets and liquor outlets around the country. Not surprisingly, Woolworths makes money by selling lots of groceries and booze. In the last couple of years. Woolworths' growth has slowed, hit by a combination of a slowing economy, supermarket saturation, and increased competition from Wesfarmers' (ASX: WES) owned Coles. Investors need to be familiar with the underlying business to understand how the bottom line will change in the future.

Over in the U.S., Berkshire Hathaway is a well-known company largely because of its CEO, Warren Buffett. From a business perspective, it's a little more complicated because it's actually a huge collection of operating businesses — from GEICO insurance to RC Willey Home Furnishings and See's Candies. So to understand how Berkshire Hathaway makes money, you have to dig in and understand all of the businesses that comprise the conglomerate. The bright side of that setup is that when an industry like housing may hamper some companies (Benjamin Moore and Acme Brick, for instance) others (like electronic components distributor TTI, shoemaker H.H. Brown, and food and beverage distributor McLane) can pick up the slack.

The tie that binds these companies is that they're reasonably large, publicly traded companies that you can quickly and easily buy shares of with a click of the mouse. However, as you can see, the businesses that you're buying into with those shares are very different.

So the first thing to always remember when investing is that if you're going to buy shares, you better understand the business behind those shares.

How much is that doggie in the window: Price versus value
Now that we know that a share is a business, and not just a slip of paper, we can start to talk about the difference between price and value.

Going back to Graham again, in his 2008 letter to Berkshire shareholders, Buffett quoted Graham as saying, "Price is what you pay; value is what you get." For any given share you look up, you'll find that the market has a price tag attached to it. All that represents is the most recent price at which a buyer and seller were able to agree to make an exchange.

As we discussed above, there's a difference between the piece of paper that gets traded and the company that the paper represents. Similarly, there's a difference between the price that the paper sells for and what the underlying company is worth.

No matter what type of company you're looking at — a large conglomerate like Brambles Limited (ASX: BXB), a growth tech company like Iress Market Technology Limited (ASX: IRE) or a biotech high-flyer like Mesoblast Limited (ASX: MSB) — there's a value, or range of values, that we can work out for the company.

In some cases, buyers and sellers may have a good, rational view on what a company is worth and the price will accurately reflect the value. At other times though, the market may be overly optimistic or pessimistic about a company — or simply be going crazy broadly — and stick a price tag on the shares that makes no rational sense.

The gold standard for investing is having a sense for the value of a company and only buying shares of that company when the current market price is below the company's value.

Dare to be different
What we've reviewed above are basic principles that have been behind the success of many of the very best investors. Unfortunately, they're often not the principles that you'll hear, see, and read in much of today's market coverage. In a 24-hour world where there's intense competition for reader and viewer eyeballs, it pays for the media to focus on daily or hourly time frames.

The frantic, do-or-die immediacy of much of the sharemarket coverage can seem exciting, but to create a solid foundation for your investing, your best bet is to shut off all of that noise and focus on the basics outlined above.

You could call it wise, sage, or enlightened investing, but we like to simply think of it as Foolish.

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This article authorised by Bruce Jackson.

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