I wouldn't get out now, because it means getting out after a massive sell off and leaving a lot on the table. There hasn't even been anything worthy of calling a rally since the bears attacked this thing. It's an extreme move being exacerbated by short sellers. Good chance it will bounce when it hits the 50 DMA and resume its upward trend.
Sure, these are markets ie. people and they can do anything. But by buying here you are betting that XLU will go beyond Y2000 valuation peak. Is it possible? Sure. Likely? Who knows. I sure would not make that bet :) Good luck and best wishes.