It's early days, but the fourth quarter has brought a change in market leadership at the sector level. Healthcare, one of the year's big laggards, is now the best performing S&P 500 sector so far in October. The sector is also emerging as the most in-demand S&P 500 sector this quarter. XLV has attracted some $872 million in net new money by Oct. 13, according to our data. That places XLV among top 10 equity ETF asset gatherers this quarter. That's not a small accomplishment. In fact, it's a feat that not ...