The investment of money is a banker's business. When the average man has funds to invest, whether he be a business man or a pure investor, he should consult some experienced and reliable investment banker just as he would consult a doctor or a lawyer if he were in need of medical or legal advice. This book is not intended to take the place of consultation with a banker, but to supplement it.

The advantage of such consultation is shown by the fact that if a man attempts to rely on his own judgment, he is almost certain not to do the best thing, even if his business instinct leads him to avoid those enterprises which are more plainly unpromising or fraudulent. It should be remembered, however, that widows and orphans are not the only ones ensnared by attractive advertisements and the promise of brilliant returns. In most cases, widows' and orphans' funds are protected by conscientious and conservative trustees, and it is the average business man who furnishes the money which is ultimately lost in all propositions which violate the fundamental laws of investment.

The average man is led into these unwise investments through a very natural error of judgment. Accustomed to take reasonable chances and to make large returns in his own business, he fails to detect anything fundamentally wrong in a proposition simply because it promises to pay well. He forgets that the rate of interest on invested money, or pure interest, is very small, and that anything above that can only come as payment for management, as he makes in his own business, or at the sacrifice of some essential factor of safety which will usually lead to disaster.

For the successful investment of money, however, a good deal more is required than the mere ability to select a safe security. That is only one phase of the problem. Scientific investment demands a clear understanding of the fundamental distinctions between different classes of securities and strict adherence to the two cardinal principles, distribution of risk and selection of securities in accordance with real requirements.

One of the most important distinctions is that between promises to pay and equities. Bonds, real-estate mortgages, and loans on collateral represent somebody's promise to pay a certain sum of money at a future date; and if the promise be good and the security ample, the holder of the promise will be paid the money at the time due. On the other hand, equities, such as the capital stocks of banking, railway, and industrial corporations, represent only a certain residuary share in the assets and profits of a working concern, after payment of its obligations and fixt charges. The value of this residuary share may be large or small, may increase or diminish, but in no case can the holder of such a share require any one, least of all the company itself, to redeem the certificate representing his interest at the price he paid for it, nor indeed at any price. If a man buys a $1,000 railroad bond, he knows that the railroad, if solvent, will pay him $1,000 in cash when the bond is due. But if he buys a share of railroad stock, his only chance of getting his money back, if he should wish it, is that some one else will want to buy his share for what he paid for it, or more. In one case he has bought a promise to pay, and in the other an equity.

It is not the intention, from the foregoing, to draw the conclusion that equities under no circumstances are to be regarded as investments, because many of our bank and railroad stocks, and even some of our public-utility and industrial stocks, have attained a stability and permanence of value and possess sufficiently long dividend records to justify their consideration when investments are contemplated; but it is essential that the investor should have a thorough understanding of the distinction involved.

The principle of distribution of risk is a simple one. It involves no more than obedience to the old rule which forbids putting all one's eggs in the same basket. The number of men who carry out this principle with any thoroughness, however, is very small. Proper distribution means not only the division of property among the various forms of investment, as railroad bonds, municipals, mortgages, public-utility bonds, etc., but also the preservation of proper geographical proportions within each form. Adherence to this principle is perhaps not so important for private investors as for institutions. A striking instance of the need for insistence upon its observance in the institutional field was furnished by one of the fire-insurance companies of San Francisco after the earthquake. It appeared that the company's assets were largely invested in San Francisco real estate and in local enterprises generally, where the bulk of its fire risks were concentrated. As a result, the very catastrophe which converted its risks into actual liabilities deprived its assets of all immediate value. This instance serves to show the importance of the principle and the necessity for its observance.

The principle of selection in accordance with real requirements is more complex. It involves a thorough understanding of the chief points which must be considered in the selection of all investments. These are five in number: (1) Safety of principal and interest, or the assurance of receiving the principal and interest on the dates due; (2) rate of income, or the net return which is realized on the actual amount of money invested; (3) convertibility into cash, or the readiness with which it is possible to realize on the investment; (4) prospect of appreciation in value, or that growth in intrinsic value which tends to advance market price; and (5) stability of market price, or the likelihood of maintaining the integrity of the principal invested.

The five qualities above enumerated are present in different degrees in every investment, and the scientific investor naturally selects those securities which possess in a high degree the qualities upon which he wishes to place emphasis. A large part of the problem of investment lies in the careful selection of securities to meet one's actual requirements. The average investor does not thoroughly understand this point. He does not realize that a high degree of one quality involves a lower degree of other qualities. He may have a general impression that a high rate of income is apt to indicate less assurance of safety, but he rarely applies the same reasoning to other qualities. When he buys securities, he is quite likely to pay for qualities which he does not need. It is very common, for example, when he wishes to make a permanent investment and has no thought of reselling, to find him purchasing securities which possess in a high degree the quality of convertibility. From his point of view, this is pure waste. A high degree of convertibility is only obtained at the sacrifice of some other quality—usually rate of income. If he were to use more care in his selections, he could probably find some other security possessing equal safety, equal stability, and equal promise of appreciation in value, which would yield considerably greater revenue, lacking only ready convertibility. Thus he would satisfy his real requirements and obtain a greater income, at the expense only of a quality which he does not need.

The quality of convertibility divides investors into classes more sharply than any other quality. For some investors convertibility is a matter of small importance; for others it is the paramount consideration. Generally speaking, the private investor does not need to place much emphasis upon the quality of convertibility, at least for the larger part of his estate. On the other hand, for a business surplus, ready convertibility is an absolute necessity, and in order to secure it, something in the way of income must usually be sacrificed.