---
title: "'Sell in May' has been a bad strategy this century: Chart of the day"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/285389890.md"
description: "The traditional investment strategy of \"Sell in May and stay away\" has proven to be less effective in recent years. Historically, investors were advised to reduce their market exposure after April and return in the fall. However, recent S&P 500 data indicates that this seasonal trend has shifted, suggesting that the strategy may no longer be beneficial."
datetime: "2026-05-06T13:43:18.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/285389890.md)
  - [en](https://longbridge.com/en/news/285389890.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/285389890.md)
---

# 'Sell in May' has been a bad strategy this century: Chart of the day

“Sell in May and stay away” used to have a case. Lately, it’s mostly had a cost. The old warning says investors should reduce exposure after April and come back later in the year, usually around October or November. But S&P 500 (^GSPC) history shows the seasonal map has changed a lot depending on the market era — and the modern version looks much l...

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