The article question whether Extra Space Storage (EXR) is underperforming the real estate sector. No further details are provided in the given input content to answer this question.

<p>文章質疑 Extra Space Storage (EXR) 是否在房地產行業中表現不佳。給定的輸入內容中沒有提供進一步的細節來回答這個問題</p>

Extra Space Storage 股票：EXR 是否在房地產板塊中表現不佳？