<div id="readability-page-1">“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&amp;P 500 (^GSPC) history shows the seasonal map has changed a lot depending on the market era — and the modern version looks much l...</div>

標普 500 指數

2 倍做空標普 500 ETF - ProShares

標普 500 指數股票型基金

<p>傳統的投資策略 “五月賣出，遠離市場” 在近年來已被證明效果不佳。歷史上，投資者被建議在四月之後減少市場敞口，並在秋季迴歸。然而，最近的標普 500 數據表明，這一季節性趨勢已經發生變化，暗示該策略可能不再有利</p>

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

- “五月賣出，離開市場” 的説法曾有依據。  
- 隨着市場時代變遷，標準普爾 500 指數的季節性模式發生了變化。  
- 現代市場的表現與以往大相徑庭，投資者需重新評估策略。

標普 500 ETF - iShares

標普 500 ETF - Vanguard

2 倍做多標普 500 ETF - ProShares

做空標普 500 ETF - ProShares

3 倍做多標普 500 ETF - ProShares

1 倍做空標普 500 ETF - Direxion

3 倍做空標普 500 ETF - Direxion

3 倍做空標普 500 ETF - ProShares

“五月賣出” 策略在本世紀表現不佳：今日圖表