
For an equity investor, knowing the future would be very useful, but sadly, time travel is impossible. Time moves forward and the present is shaped by the past, but the future doesn't yet exist.
Forecasting the future would be massively helpful to a professional investor who builds focused equity portfolios. Imagine the returns if you'd been holding Nvidia every time it surged in the last 10 years, and been out of it when it slumped.
In the past three quarters of 2025, we would have loved to have only owned Uber (+53.9%), Nvidia (+35.7%), Netflix (+30.0%), and Google (+29.5%), and avoided losers like Amazon (-0.3%) and Stryker (only +3.3%).
Our brains can make very short-term predictions (like preparing to catch a ball), but long-term, multi-variable forecasting is just a dream. People have tried models, statistics, and, more recently, AI to develop systems with predictive power, but with no success.
This news story got me thinking about making stock market prophecies:
"The Securities and Exchange Commission today announced charges against New York-based Prophecy Asset Management LP as well as its CEO and Chief Investment Officer Jeffrey Spotts, for a multi-year fraud that concealed hundreds of millions of dollars of losses from investors while bringing in millions in management and incentive fees."
According to the SEC's complaint, Prophecy Asset Management raised over $500 million between 2014 and 2020 for hedge funds it advised, misleading investors to believe that their investments were protected from loss. In reality, most of the funds' capital went to Kahn, who incurred massive trading losses. Once $350 million was gone, Prophecy Asset Management indefinitely suspended redemptions by investors.
If anyone tells you that they "know" what will happen a year from now, whether good or bad, boom or crash, they are just spitballing.
But all is not lost. From simple empirical observation, we can conclude that markets normally go up, that quality companies will continue to grow and that talented business leaders will keep striving to win. After a bear market, the bulls return. That's not making prophecies, it's well-grounded common sense.