---
title: "Fascinating study from Bloomberg: S&P Equal Weight outperformance was extremely rare historically:"
description: "1999-2002 Dotcom\n2009 Post GFC\n2020-2021 Covid\n\n“Those cases accompanied major shifts in the market.”\n\n“Equal-weight S&P managed to maintain some outperformance 250 days later.”\n\n“The big question: whether this is the start of an extended period of sharp moves around AI disruptors, and the disrupted.”\n\nSource: Macrocharts, Bloomberg"
---

[Syz The Moment](https://blog.syzgroup.com/syz-the-moment)

# [Fascinating study from Bloomberg: S&P Equal Weight outperformance was extremely rare historically:](https://blog.syzgroup.com/syz-the-moment/fascinating-study-from-bloomberg-sp-equal-weight-outperformance-was-extremely-rare-historically)

 Written by [Charles-Henry Monchau, CFA, CMT, CAIA](https://blog.syzgroup.com/syz-the-moment/author/charles-henry-monchau) | Feb 18, 2026, 4:06:49 PM

[View full post](https://blog.syzgroup.com/syz-the-moment/fascinating-study-from-bloomberg-sp-equal-weight-outperformance-was-extremely-rare-historically)

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