ViFinance Idea The idea of creating our own index emerged during attempts to optimize index investing.
An evident fact: passive index investing is most suitable for the majority of retail investors, as it is the simplest and most effective approach, allowing them to achieve market-average returns. However, this approach is not without drawbacks.
Professor Hendrik Bessembinder from the University of Arizona, in his 2017
Research, examined the dynamics of 26,000 American stocks over 90 years and 61,000 global stocks over nearly 30 years. The key finding: almost all market gains come from 1.33% of companies. In other words, nearly 99% of stocks ultimately lose their value.
When an investor adds a broad market index ETF to their portfolio, they are buying all companies at once. Out of these, only 1% will be successful in the long term, while 99% will perform worse than the market.
The growth of an index (such as the S&P 500) is based on the market capitalization-weighted growth of the constituent companies' stocks and has averaged around 10% per year since the second half of the 20th century. It's important to understand that among all the companies in the index, there are those significantly outperforming the average growth rate (e.g., Adobe ADBE: +70.22% in 2017, +29.10% in 2018, +45.13% in 2019) as well as those lagging behind the average or even declining (e.g., The Kraft Heinz Company (KHC): -10.95% in 2017, -44.65% in 2018, -26.32% in 2019).
If we look at the annual dynamics of individual companies included in the index composition, we will see the following picture: