There's been a little switch in the top 2 slots this week as XRT (retail sector) assumes the #1 slot. It's been lurking over at #2 but now shows new strength.
XLV (health care) has meanwhile crumbled to last place although a quick look at the charts would not suggest such weakness.
In today's market action the advance decline line is currently flatlined at .50...90 minutes in. This is a moderately bearish reading based on sub par volume so its difficult to predict what momentum will do....over the .5 ledge and down or a springboard back up to a more neutral balance of advancers versus decliners.
The only X sector ETF in the green this morning (so far) is XLP (consumer staples) which is up 17% since January 1. The 4 month charts of XLU and XLP look identical by the way.