Below are the nine S&P 500 sector ETFs and their performance for the 14 days heading into the December 24th market bottom, and then their performance for the 14 days since.
As you can see, the sectors that were stretched the farthest to the downside have bounced the highest to the upside. The sectors that held up a little better during the selling have not had nearly the same bounce. This is typical of a market coming off a V-bottom. This does not mean the groups that have bounced the most to this point are the ones that are most capable of leading a new bull market. Those potential leaders are yet to be determined. It simply shows the rubber-band effect off the deeply oversold low.