The premise on which this article is based is that the S&P500 Index varies exponentially over time. If this is true, then the logarithm of the value over time will be a straight line, y=ax+b, where y ...

Forbes contributors publish independent expert analyses and insights. I am a clinical professor of finance at Kellogg School of Management. In this graph, you can see the cumulative return on a ...

Uncertainty around tariffs, inflation, and the economy has driven investors to sell risk-on assets in favor of risk-off investments in 2025. Among those risk-on assets being sold: growth stocks. For ...

The S&P 500 index is near all-time highs and has an average P/E of around 27.6. Some worry that the market's focus on growth stocks has pushed valuations too far. Vanguard Value Index ETF could be the ...

The S&P 500 Style Indexes rebalanced last week, leading to a substantial overhaul of the ETFs that track them, namely SPYG and SPYV. This article highlights the most significant changes. Apple, ...