Warren Buffett has once mentioned: "In my view, for most people, the best thing to do is to own the S&P 500 index fund". He further believes that it's very difficult for most people to 'beat the index'. All of us were kind of puzzled and myself included has been asking the question on why is this?
An overview of historical KLCI and S&P500 chart:
After some hard thought process and discussions, we believed that the below are the reasons on why Indexes typically is on a long term uptrend (Japan excluded as they are the only one country in the world which faces long term deflation and hence financial products prices drop):
1. Indexes are being reviewed from time-to-time. Those who did not meet the criteria (i.e. free float, market capitalization) will be eliminated. However, when business is better they might be re-admitted again. Wikipedia (https://en.wikipedia.org/wiki/List_of_S%26P_500_companies) maintains a very good list on the current S&P500 component companies and the updates to it. The review process is already like a 'quality' screening of companies where ailing businesses will be removed and new and thriving businesses will be added.
You can see that only the fittest will "survive" being maintained in the index. This means that it's an auto elimination of businesses that were not doing well, either in the sunset industries or they have lost their competitive edge etc. Also, we know that size matters when it comes to businesses. Although the biggest companies may have higher cost structures and unable to grow as fast as a younger and smaller company, but the mid-to-bigger sized companies (that is likely to be included in S&P500) will have a higher chance of success as they already have competitive edge against their competitors (hence they can grow into the mid-to-bigger size) and have sufficient financial capabilities to do R&D (this is key to survival of a company).
Notably, due to Technology sector's growth, more and more Technology companies are included into the index while old-school brick and mortar businesses and being kicked out.
2. Companies which are part of indexes are typically 'valued higher', including having higher P/E ratios, P/NTA etc. As index funds these days are gaining momentum, index fund managers have to buy stocks in order for the fund to 'mimic' the index. Hence, there is always demand for index-linked stocks.
3. Index-link stocks and companies does give business partners, investors more confident. Better investors' confidence will lead to point 2 as above while better business partners' confidence will mean that the ability to take loans at a cheaper costs, having slightly longer credit period and better consumers' confidence would also means better sales.
Tesla, during the early days suffer in brand image and now that it has been included in S&P500 would bring better consumer confidence. The perception will be that it has to be a stable company to be included in S&P500. Similarly, stock prices will take a heavy beating should the stock be removed from the index. Don't be surprised that business might suffer as well post removal from index as customers' perception might be negative towards the company. After all, business is all about 'marketing and image' isn't it?
4. Other than Point 1, most importantly, these big and stable companies keep growing sales and profits, hence their share price keep rising to reflect that. Think of US companies (Google, Amazon, Microsoft, Intel, AMD, Qualcomm, Apple) and Malaysian companies (PB Bank, Maybank, Tenaga, TM, Hong Leong Bank), these companies still manage to grow decently despite their size. 20 years ago we are all talking about Intel Pentium III processor based computers with CRT monitors but today we talked about iPad, Laptops etc. However, companies like Microsoft keep evolving and they have Ms Surface, yearly subscription service of their Office products (Office 365) and offer cloud storage which wasn't in existence 20 years ago.
For those "old-school" technology companies, they reinvent themselves and came out stronger. For example, Google, Microsoft and Apple reported that "Cloud Computing" is the segment that grows 'double-digit' consistently for the past 3 years. While Google is a newbie but Microsoft and Apple were in computer business since 1970s (the era of Wintel vs Apple). If you look at Microsoft (1986 @ USD21) and Apple (1980 @USD29/share) share price, you will definitely slam the table hard for not putting your money in. After many splits, the USD21 you paid for Microsoft is USD0.10 and at current share price of USD222, it means that a USD1,000 would turn into a hefty USD 2.2mil!
5. The world economy is growing, with exception of Japan where they experienced 20 years of deflation. This will link to the points above that coupled with inflation, profits of companies will keep increasing.
Conclusion
Index investing has not only becoming a trend but for the lazy and less-skilled investor, it become a natural choice. Beating the index is one of the harder things to do as index provides sufficient diversification, 'quality' selection done from time-to-time (i.e. every 3-6 monthly).