In the professional world, one of the key concepts is diversification. Harry Markowitz is a Nobel prize winning economist and one of his major discoveries was that adding new asset classes can dramatically alter the overall risk profile of a portfolio. His finding was that a portfolio that contained very low risk assets would normally benefit from lower volatility and higher returns if a higher risk asset was added. This is due to the likely lack of correlation between high and low risk asset classes.
Since Betterment launched, other robo-first companies have been founded, and established online brokers like Charles Schwab have added robo-like advisory services. According to a report by Charles Schwab, 58% of Americans say they will use some sort of robo-advice by 2025. If you want an algorithm to make investment decisions for you, including tax-loss harvesting and rebalancing, a robo-advisor may be for you. And as the success of index investing has shown, if your goal is long-term wealth building, you might do better with a robo-advisor.
His book is a big beast at more than 600 pages and will need to be committed to, but it offers some fantastic insights into how to invest safely and profitably for the long-term and how to make your money work harder. Having interviewed all these legendary traders and investors, the book contains some excellent insights into asset allocation and portfolio planning that almost everyone should gain some benefit from reading.
The most feared words on any stock exchange are margin call. A margin call is made when a position is losing money and more money is required by the broker to keep the trade open. If and when a stock ticker moves quickly, there can be people whose borrowing levels literally bankrupt them as things get worse ... fast. Volatility can be either a blessing or a curse, but if you have too much leverage, it can break a trader.