digest
Short Summary
Main recommendation: Index funds are a sound investment choice, and the common arguments for avoiding them (that they are risky, that you own bad stocks, or that skilled active managers beat them) do not hold up against the data presented. The speaker argues that active management carries its own unpriced risk and that most active funds fail to beat their benchmark indexes over one-, three-, five-, and ten-year periods.
Key Points
- The "index funds are risky" argument fails because Vanguard's 2018 study found more than 50% of active managers beat the index in some historical bear markets, but less than 50% did in others, so active management offers no reliable downside protection.
- Active management adds active risk, which the speaker says is not a priced risk and carries no positive expected return, unlike the market risk that index investors are compensated for.
- Stock returns are concentrated: of roughly 26,000 U.S. stocks in the CRSP database (1926 to 2015), only about 1,000 accounted for all market returns above Treasury bills, and the stocks that drive returns are very hard to identify ahead of time.
- The SPIVA Canada mid-year 2018 report shows that the vast majority of actively managed funds failed to beat their benchmark indexes over one-, three-, five-, and ten-year periods.
- Past outperformance by active managers is largely luck or factor exposure rather than skill, per Mark Carhart (1997) and Fama and French (2010); statistically proving skill at 95% confidence would take about 36 years of data assuming 2% annual alpha with a 6% standard deviation.
Details Worth Noting
- Concrete instructions: The video gives no step-by-step investing instructions. Its actionable guidance is to favor index funds over stock picking and actively managed funds, and to be skeptical of advisors who claim index funds are bad investments.
- Only 11.5% of Canadian investment fund assets (mutual fund and ETF assets domiciled in Canada) were in index funds as of the end of 2018, according to the speaker.
- Domino's Pizza's stock returns from 2010 through 2017 outperformed Google, Apple, Amazon, and Netflix, illustrating that company quality does not reliably predict stock returns.
- Global stocks returned about 8% per year on average from 1994 to 2017, but missing the top 10% of performing stocks each year would have cut the average to 3.6% per year.
- David Baker's 44 Wall Street Fund was top-performing in the 1970s, then lost 73% over the following decade while the S&P 500 grew 17.6% per year on average. Bill Miller's Legg Mason Value Trust beat the S&P 500 for 15 consecutive years ending in 2005, then had five years of mostly poor performance.
Bottom Line
The case against index funds rests on claims that the video's data contradicts, so for most investors the evidence supports indexing as the default approach.
