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This statement may sound like a truism, but it needs to be emphasized. For as yet there is no accepted technique or approach by which management is brought to the bar of market opinion. On the contrary, managements have always insisted that they have no responsibility of any kind for what happens to the market value of their shares. It is true, of course, that they are not accountable for those fluctuations in price which, as we have been insisting, bear no relationship to underlying conditions and values. But it is only the lack of alertness and intelligence among the rank and file of shareholders that permits this immunity to extend to the entire realm of market quotations, including the permanent establishment of a depreciated and unsatisfactory price level. Good managements produce a good average market price, and bad managements produce bad market prices.*

Fluctuations in Bond Prices

The investor should be aware that even though safety of its principal and interest may be unquestioned, a long-term bond could vary widely in market price in response to changes in interest rates. In Table 8-1 we give data for various years back to 1902 covering yields for high-grade corporate and tax-free issues. As individual illustrations we add the price fluctuations of two representative railroad issues for a similar period. (These are the Atchison, Topeka & Santa Fe general mortgage 4s, due 1995, for generations one of our premier noncallable bond issues, and the Northern Pacific Ry. 3s, due 2047—originally a 150-year maturity!—long a typical Baarated bond.)

Because of their inverse relationship the low yields correspond to the high prices and vice versa. The decline in the Northern Pacific 3s in 1940 represented mainly doubts as to the safety of the issue. It is extraordinary that the price recovered to an all-time high in the next few years, and then lost two-thirds of its price chiefly because of the rise in general interest rates. There have been startling variations, as well, in the price of even the highest-grade bonds in the past forty years.

Note that bond prices do not fluctuate in the same (inverse) proportion as the calculated yields, because their fixed maturity value of 100% exerts a moderating influence. However, for very long maturities, as in our Northern Pacific example, prices and yields change at close to the same rate.

Since 1964 record movements in both directions have taken place in the high-grade bond market. Taking “prime municipals” (tax-free) as an example, their yield more than doubled, from 3.2% in January 1965 to 7% in June 1970. Their price index declined, correspondingly, from 110.8 to 67.5. In mid-1970 the yields on high-grade long-term bonds were higher than at any time in the nearly 200 years of this country’s economic history. * Twenty-five years earlier, just before our protracted bull market began, bond yields were at their lowest point in history; long-term municipals returned as little as 1%, and industrials gave 2.40% compared with the 4½ to 5% formerly considered “normal.” Those of us with a long experience on Wall Street had seen Newton’s law of “action and reaction, equal and opposite” work itself out repeatedly in the stock market—the most noteworthy example being the rise in the DJIA from 64 in 1921 to 381 in 1929, followed by a record collapse to 41 in 1932. But this time the widest pendulum swings took place in the usually staid and slow-moving array of high-grade bond prices and yields. Moral: Nothing important on Wall Street can be counted on to occur exactly in the same way as it happened before. This represents the first half of our favorite dictum: “The more it changes, the more it’s the same thing.”

If it is virtually impossible to make worthwhile predictions about the price movements of stocks, it is completely impossible to do so for bonds.* In the old days, at least, one could often find a useful clue to the coming end of a bull or bear market by studying the prior action of bonds, but no similar clues