The Intelligent Investor_ The Definitive Book on Value Investing - Benjamin Graham [209]
The whole field of “special situations” would come under our definition of investment operations, because the purchase is always predicated on a thoroughgoing analysis that promises a larger realization than the price paid. Again there are risk factors in each individual case, but these are allowed for in the calculations and absorbed in the overall results of a diversified operation.
To carry this discussion to a logical extreme, we might suggest that a defensible investment operation could be set up by buying such intangible values as are represented by a group of “common-stock option warrants” selling at historically low prices. (This example is intended as somewhat of a shocker.)* The entire value of these warrants rests on the possibility that the related stocks may some day advance above the option price. At the moment they have no exercisable value. Yet, since all investment rests on reasonable future expectations, it is proper to view these warrants in terms of the mathematical chances that some future bull market will create a large increase in their indicated value and in their price. Such a study might well yield the conclusion that there is much more to be gained in such an operation than to be lost and that the chances of an ultimate profit are much better than those of an ultimate loss. If that is so, there is a safety margin present even in this unprepossessing security form. A sufficiently enterprising investor could then include an option-warrant operation in his miscellany of unconventional investments.1
To Sum Up
Investment is most intelligent when it is most businesslike. It is amazing to see how many capable businessmen try to operate in Wall Street with complete disregard of all the sound principles through which they have gained success in their own undertakings. Yet every corporate security may best be viewed, in the first instance, as an ownership interest in, or a claim against, a specific business enterprise. And if a person sets out to make profits from security purchases and sales, he is embarking on a business venture of his own, which must be run in accordance with accepted business principles if it is to have a chance of success.
The first and most obvious of these principles is, “Know what you are doing—know your business.” For the investor this means: Do not try to make “business profits” out of securities—that is, returns in excess of normal interest and dividend income—unless you know as much about security values as you would need to know about the value of merchandise that you proposed to manufacture or deal in.
A second business principle: “Do not let anyone else run your business, unless (1) you can supervise his performance with adequate care and comprehension or (2) you have unusually strong reasons for placing implicit confidence in his integrity and ability.” For the investor this rule should determine the conditions under which he will permit someone else to decide what is done with his money.
A third business principle: “Do not enter upon an operation—that is, manufacturing or trading in an item—unless a reliable calculation shows that it has a fair chance to yield a reasonable profit. In particular, keep away from ventures in which you have little to gain and much to lose.” For the enterprising investor this means that his operations for profit should be based not on optimism but on arithmetic. For every investor it means that when he limits his return to a small figure—as formerly, at least, in a conventional bond or preferred stock—he must demand convincing evidence that he is not risking a substantial part of his principal.
A fourth business rule is more positive: “Have the courage of your knowledge