Saturday, October 22, 2016

Book Review: A Random Walk Down Wall Street

I found this book in a second hand book shop and the title seemed quite interesting to me. So, after a little bargain, I bought this book at a fair price. And, today, I’ve finished reading this book. Burton G. Malkiel in this book has discussed about the presence of efficiency in securities market and why it is more logical to say that market prices of securities move in a random order than predictable manner. My learning from this book is presented below.

1.  There are two basic approaches to asset valuation i.e. firm foundation theory which emphasizes on the intrinsic value of a security determined by the analysis of present conditions and future prospects; and castle-in-the-air theory focuses on determining the behavior of investors towards a security.

2.  Author presented the evidence of building castle in the air by investors during the Tulip-bulb craze, South sea bubble, Florida real estate craze, and Black Thursday. Discussions were also made on the speculative movements pioneered by professional investors like the growth-stock/new-issue craze, conglomerate boom, concept stocks bubble, nifty-fifty bubble, biotechnology bubble and others.

3.  Firm foundation theorists suggest 4 determinants affecting the stock price i.e. growth rate, dividend payout, risk, and market interest rate. The firm foundation value of a security will be higher if it has larger growth rate, larger dividend payout, less risk and lower market interest rate.

4. Fundamental analysis is based on the firm-foundation view of stock pricing and technical analysis is on the castle-in-the–air view. But, none of these are self-sufficient. So, 3 rules incorporating the both are suggested for stock picking i.e.
a. An investor should only buy the securities of the companies those have expected above-average earnings growth for five or more years;
b.  An investor should not pay for a security more than its firm-foundation value;
c.  An investor should seek the stock with which crowd may build castle in the air.

5.   Security analysts have difficulty in predicting the future because of the influence of random events, creation of dubious reported earnings, basic incompetence of analyst, and loss of best analyst to sales desk or portfolio management.

6.  The author has provided the evidences inconsistent with the week form, semi-strong form, and strong form of efficient market hypothesis. He also discussed about the weakness of several academic works.

7.  Some warm-up exercises have been given for the investors for reducing their risks and increasing their returns. Those include covering oneself with protection, knowing investment objectives, being competitive, diversifying investment steps etc.

8.    In life-cycle guide to investing, the author discussed about 4 principles in investing i.e. a.    Risk and reward are related;
b.    Actual risk in stock and bond depends on holding period;
c.    Dollar-cost averaging is useful in reducing risk; and
d.    One must distinguish between his/her attitude towards and capacity for risk.
and provided some suggestions regarding different investment choices based on the age of investor.

9.  In final chapter, Malkiel discussed about 3 ways one can approach to securities market. Those are
a.    No-brainer step – investing in the index
b.    Deep thinker step – doing the stock picking and selling own-self
c.    Substitute player step – investing through professionals

Overall, this is a good read for the people who have a stack with security market. Many nuances of security market are discussed those will help in deeper understanding of the practices and pitfalls of this market. My copy is the fifth edition of this book and most of the advice are serviceable to-date. You can grab a copy of this book from Amazon

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