Let's say you invest $50,000 in stocks for 35 years at an average annual return of 9%, your investment would have become 50,000*1.09^35 = $1,020,698 after 35 years.
If you invest $50,000 in ETFs for 35 years with an average expense ratio of 0.65% and an average annual return of 9%, your average annual return after management fees, will be 9% - 0.65% = 8.35% and after 35 years, your investment would have become 50,000*1.0835^35 = $827,908.
The difference in performance between investing is stocks or ETFs is almost $200K !!! or 23,3% !!!
Conclusion: over the very long term (several decades) a small difference in the average annual return can have a massive impact on the bottom line P&L figure and therefore it is very important to keep ETFs cost (management fees) to a minimum or purely and simply eliminate the fee by investing in stocks rather than ETFs.
I've read lots of articles about diversification and I know that if I invest in 20-30 stocks, the unsystematic risk will tend to zero, i.e if I invest in 30 emerging markets stocks, I will have a comparable level of diversification than if I invest in an ETF holding 300 emerging market stocks.
I've found lots of articles talking about diversification and explaining how to mitigate risk, especially the unsystematic of an individual stock.
However, I've not found articles comparing the average historic annual return of an index of say 300 stocks, compared against a basket of say 30 stocks randomly picked amongst the 300 stocks part of the index.
So, I don't know which of the following alternative I should use to invest for the long term:
1st choice:
Invest in emerging markets ETFS (combination of several emerging markets ETFs, global, regional and single country) covering Latin America, Asia, Africa etc. and pay on average around 0.6% expense ratio.
2nd choice:
Invest in emerging stocks, randomly picking 30-40 stocks spread accross Latin America, Asia, Africa etc. and not paying the management fees.
I have no idea which one of the two choices will generate the best average annual return over the long term. For sure, using the 2nd choice I get the advantage of not paying the fee, but the performance might be better or worst than a combination of ETFs, I really don't know.
Can someone provide advice?