← Embeddable research widgets
Starting top-10 concentration vs. subsequent 10-year S&P 500 price return
Embed the six historical starting-concentration observations and their subsequent 10-year annualized S&P 500 price returns.
Published September 21, 2026Data through June 30, 2025Recommended height 520px
Preview and copy the embed
Choose a theme, preview the live widget, then copy the iframe HTML. Width is responsive; the recommended height keeps the complete widget visible.
Recommended height: 520px
<iframe src="https://grizzlybulls.com/embed/research/sp500-concentration-forward-returns?theme=auto" title="Starting top-10 concentration vs. subsequent 10-year S&P 500 price return" loading="lazy" referrerpolicy="strict-origin-when-cross-origin" style="width:100%;height:520px;border:0;overflow:hidden"></iframe>
Research source
-0.04 correlation excluding June 1965. The full six-observation sample is -0.72, showing the relationship is highly sensitive to one starting point.
The widget is a distribution view of S&P 500 Concentration and Forward Returns: Does a Top-Heavy Market Predict the Next Decade?. Use the full study for methodology, evidence, and limitations.
Embed boundary
The generated publisher code contains only an iframe. Grizzly Bulls source attribution appears inside the widget with a nofollow link. Publishers may independently cite the study in their editorial copy when it is relevant.