Communications (XLC) and Consumer Discretionary (XLY) spent about half the week each at the top of the sector list.
But it was Utilities (XLU) that would rise at the end of the week as the winner. No doubt a defensive play going into the long weekend and a turn of the clock to a new year.
Energy (XLE) had a very short-lived time at that top on Monday morning, but ended the week as the worst performing sector. Energy was the only sector to end the week with a loss.